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Arbetsbeskrivning

Randstad Digital söker en Embedded Software Engineer för kommande och pågående uppdrag inom säkerhetskritisk mjukvaruutveckling.

Du kommer att utveckla inbäddad mjukvara för högteknologiska styr- och signalsystem där tillförlitlighet står i centrum. Rollen innebär att lösa utmanande tekniska problem och skriva ren, effektiv och säkerhetskritisk kod som uppfyller branschens högsta säkerhetsstandarder.

Ansvarsområden

• Utveckla, designa och underhålla mjukvarukomponenter i C, C++ (eller Ada) för inbyggda realtidssystem.
• Skriva mjukvaruspecifikationer och arkitekturdokumentation baserat på övergripande systemkrav.
• Genomföra enhetstester (Unit Testing), statisk kodanalys samt delta i strukturerade kodgranskningar (code reviews).
• Felsöka och verifiera mjukvara på målhårdvara samt i HIL-miljöer (Hardware-in-the-loop).
• Arbeta aktivt i agila team (Scrum/SAFe) och samarbeta nära verifierings- och valideringsteamet (V&V) för att säkerställa högsta kvalitet och säkerhet.

Randstad Digital specializes in the field of IT and digital enablement, and is part of Randstad, a global talent leader with the vision to be the world’s most equitable and specialized talent company. Headquartered in the Netherlands, Randstad operates in 39 markets and has approximately 40,000 employees. With this global network, in combination with our strong local foundation, we can offer a wide range of varied and developing assignments and jobs for you who are a specialist in IT. As a partner for talent and through our distinct specialization, we help people secure meaningful roles, develop relevant skills and find purpose and belonging in their workplace.

Låter detta som någonting för dig? Vi ser fram emot din ansökan, senast den 2026-09-30! Underkonsulter är också välkomna att ansöka. Urval sker löpande, så tveka inte att skicka in ditt CV redan idag. Har du frågor så är du välkommen att kontakta Emma Johansson, emma.johansson@randstad.se

Kvalifikationer

Vi söker dig som är kvalitetsmedveten, noggrann och metodisk i ditt sätt att arbeta. Du har en god förståelse för hela utvecklingscykeln inom inbyggda system och förstår vikten av robust mjukvarudesign i miljöer där säkerheten alltid kommer i första hand. Som person är du en lagspelare som trivs i en internationell miljö och gärna delar med dig av din kunskap för att driva teamet framåt.

• Civil- eller högskoleingenjörsexamen inom Datateknik, Inbäddade System, Mjukvaruteknik, Elektroteknik eller motsvarande erfarenhet.
• Starka kunskaper i C och/eller C++ samt god erfarenhet av realtidsoperativsystem (RTOS) och/eller inbyggd Linux.
• Erfarenhet av agila utvecklingsmetoder samt moderna verktygskedjor (exempelvis Git, Jira, Confluence, CI/CD).
• Flytande svenska och engelska i tal och skrift.
• Erfarenhet av säkerhetskritisk utveckling på hög nivå (SIL3/SIL4) eller standarder för funktionell säkerhet (t.ex. EN 50128 / EN 50657, ISO 26262 eller DO-178C).
• Praktisk erfarenhet av testning i HIL-miljöer och hårdvarunära felsökning.
• Kunskap om industriella kommunikationsprotokoll (CAN, Ethernet, TCP/IP, MVB).
• Erfarenhet av programmeringsspråket Ada.

Om företaget

Randstad

Senior Full-Stack Engineer (ML & Data)

Own our prediction models from training pipeline to customer-facing feature. Strong applied ML — calibration, evals, leakage — plus full-stack TypeScript to ship it.

We build AI agents that audit and optimize e-commerce advertising. Our platform syncs live data from Google Ads, Meta, Merchant Center, and Google Analytics, runs it through a rule engine, LLM-powered audit agents, and our own prediction models, and turns findings into concrete actions marketers can apply with one click.

What sets us apart is measurement: we connect real profit data from our customers' e-commerce platforms to their ad accounts and build models that tell them what their marketing actually returns — not what ad platforms self-report. The ML in our product isn't decoration. Prediction models, calibration, and evaluation pipelines are core to what customers pay for.

We're a small team shipping fast on a modern, strictly-typed stack. You'd report directly to the CTO, with real ownership: features you design end-to-end, and models you own from training data to the number a customer sees on screen.

The role

This is a hybrid role — roughly 60% product engineering, 40% ML & data science. You'll ship full-stack features in our TypeScript monorepo and own prediction models as production software: framing the problem, building training and evaluation pipelines, monitoring calibration drift, and wiring outputs into the product.

We're not looking for a research scientist, or a pure web engineer. We want someone who treats a model the way a good engineer treats a service: tested, monitored, versioned, and honest about its failure modes.

What you'll do

• Own prediction models end-to-end — models that predict product returns and net profit per order — training data pipelines, feature engineering, evaluation (ranking quality and calibration), recalibration strategies, and serving model output into the product.
• Build and maintain data pipelines — SQL feature builders on PostgreSQL shared by training and serving, versioned dataset exports, backfills, and data quality checks that keep training data honest (no leakage, no silent schema drift).
• Design and build features across our TypeScript monorepo — tRPC procedures and NestJS services on the backend, React on the frontend — so model insights become actions marketers can apply with one click.
• Work on the AI audit agent — prompt design, rule evaluation, structured-output evals, and plumbing that turns LLM output into reliable, deduplicated actions across multiple model providers.
• Extend integration workers — sync campaign, product, and analytics data from Google and Meta APIs via Cloud Pub/Sub pipelines.
• Evolve the data model in PostgreSQL/Prisma — keep migrations, multi-tenancy, and role-based access clean as the product grows.
• Own quality — write tests (Jest on TypeScript, pytest on Python), review PRs, and keep our CI/CD pipeline to Cloud Run fast and boring.

Our stack

Backend — TypeScript, Node, js, NestJS + Fastify, tRPC, Zod, Prisma, PostgreSQL, ML & data — Python, pandas, scikit-learn, XGBoost, PyTorch, ONNX, SQL on PostgreSQL, BigQuery, Calibration pipelines, Bayesian MMM (Google Meridian)

Model serving — FastAPI on Cloud Run · Cloud Run Jobs · GPU training on GCP Batch

Frontend — React · Vite · Tailwind · End-to-end types via tRPC

Infrastructure — Google Cloud Run · Pub/Sub · Docker · Terraform · GitHub Actions · pnpm workspaces

AI & integrations — Multiple LLM providers · Google Ads · Meta · Merchant Center · GA4

What we're looking for

• 5+ years building production software, with strong TypeScript on both server and client — or strong TypeScript on one side plus deep Python, with the willingness to close the gap fast.
• Hands-on applied ML: you've trained, evaluated, and shipped prediction models that real users depended on. You can explain the difference between good ranking and good calibration, know what data leakage looks like, and have debugged a model that was confidently wrong.
• Fluent Python for data work (pandas, scikit-learn or similar) and strong SQL — comfortable with large datasets in PostgreSQL or BigQuery.
• Solid relational database instincts — schema design, migrations, and query performance in PostgreSQL (Prisma is a plus).
• Experience with event-driven or queue-based architectures (Pub/Sub, SQS, Kafka, or similar) and their failure modes.
• A habit of testing: you write tests because they let you move faster, not because someone told you to.
• Pragmatic product sense — you ask why before how, and you'd rather ship a focused, well-measured model than a state-of-the-art one nobody can maintain.

Nice to have

• Bayesian modeling or marketing mix modeling experience (priors, ROI calibration, health diagnostics).
• Hands-on work with LLM APIs in production — prompting, evals, structured output, cost control, switching providers.
• Experience serving models on GCP (Cloud Run, GCP Batch, Vertex AI) and monitoring for drift.
• Familiarity with Google Ads, Meta, or Merchant Center APIs, or ad-tech / e-commerce domain experience.
• NestJS, tRPC, or GCP (Cloud Run, Artifact Registry, Workload Identity) in a previous role.

How we work

Small team, short feedback loops, no ceremony for ceremony's sake. Strict TypeScript, code review on everything, CI that deploys to Cloud Run on merge. Models are held to the same standard as code: evaluated before they ship, monitored after. We optimize for shipping value weekly and keeping the codebase a place people enjoy working in.

We're a fast-growing team building AI agents that handle the repetitive work — so companies can focus on vision, strategy, and innovation. Here, you'll own ideas from first sketch to finished product, work closely with the founders, and see your impact immediately. We celebrate success, learn from challenges, and believe true magic happens through collaboration.

Want to shape the future of AI-driven marketing?

Interviews are conducted on an ongoing basis, so please submit your application as soon as possible.

You will be employed directly by the company. You will receive information about which company the advertisement refers to when you are in contact with the recruiter. Bumbli Group is therefore not the employer but the recruitment agency.

Welcome to submit your application!

Bumbli Group is part of House of Recruitment — a personal, traditional and quality-driven recruitment agency in Gothenburg.

Är du en erfaren mjukvaruutvecklare som vill ta nästa steg i karriären? Vill du leda ett dynamiskt team på ett av Nordens största företag? Om du brinner för fullstackutveckling och molnplattformar är det här jobbet för dig!

Bli en del av oss

IT-avdelningen på PostNord består av ett engagerat team som ansvarar för att driva innovation och leverera mjukvarulösningar av hög kvalitet. Vårt uppdrag är att stödja organisationens strategiska mål genom att utveckla skalbara och effektiva system. Vi främjar en samarbetsinriktad och inkluderande kultur där varje teammedlems bidrag värdesätts.

Om rollen

Som Tech Lead på PostNord ansvarar du för att vägleda vårt utvecklingsteam och säkerställa framgångsrika leveranser av mjukvaruprojekt. Din roll kommer att omfatta:

• Leda design, utveckling och driftsättning av fullstackapplikationer

• Bygga och underhålla en mikrotjänstarkitektur

• Införa bästa praxis inom mjukvaruutveckling och säkerställa hög kodkvalitet

• Samarbeta med tvärfunktionella team för att definiera, designa och leverera nya funktioner

• Vägleda och coacha teammedlemmar för att främja deras professionella utveckling

• Driva införandet av agila metoder och DevOps-principer

• Driva teamets användning av AI och agentiska AI-verktyg i utvecklingsarbetet – effektivt, säkert och enligt PostNords AI- och dataskyddspolicyer
• Säkerställa stabilitet och skalbarhet för våra applikationer i molnmiljöer (AWS, Azure eller GCP).

• Flera års erfarenhet av mjukvaruutveckling med stark inriktning på fullstackutveckling

• Mycket goda kunskaper i Java Spring Boot och Angular, React eller motsvarande frontendramverk

• Erfarenhet av att bygga mikrotjänster

• Förståelse för plattformar för orkestrering av containrar och erfarenhet av att driftsätta mjukvara i produktionsmiljö

• Gedigen förståelse för mjukvaruarkitektur, designmönster och bästa praxis

• Erfarenhet av molnplattformar som AWS, Azure eller GCP

• Erfarenhet av AI-assisterad utveckling (t.ex. GitHub Copilot) och god förståelse för agentisk AI

• Stark problemlösningsförmåga och förmåga att tänka kritiskt

• Utmärkt kommunikations- och samarbetsförmåga

• Dokumenterad erfarenhet av att leverera mjukvarulösningar av hög kvalitet enligt tidsplan

• Erfarenhet av agila metoder och DevOps-principer är meriterande

• Flytande svenska och engelska i tal och skrift

Meriterande erfarenhet:

• Utveckling av mobilappar

• Erfarenhet av att bygga lösningar med LLM:er och agentiska ramverk

Vi tror att du är en person som är:

• Noggrann, analytisk och snabb på att lära dig nya system

• Inkluderande, strukturerad och ansvarsfull i ditt arbetssätt

• Kapabel att hantera stressiga situationer och självständigt prioritera arbetsuppgifter

• Kommunikativ och lätt att samarbeta med samt bra på att bygga och vårda långsiktiga relationer

Vi erbjuder dig

Vi erbjuder ett omväxlande arbete i en internationell miljö med ständigt nya utmaningar och snabba beslut. Här får du möjlighet att utveckla kreativa lösningar och arbeta i en prestigelös grupp där vi gemensamt hjälps åt för att nå våra mål. PostNord är en av Sveriges största arbetsplatser och vi erbjuder trygga anställningsvillkor och förmåner. Utöver de förmåner som nämns ovan erbjuder vi:

• Hybrid arbetsplats med en nordisk och dynamisk miljö. Se filmen om vårt kontor.

• Goda utvecklingsmöjligheter

• Förmånliga försäkringsvillkor och tjänstepension

• Friskvårdsbidrag samt möjlighet att träna på Arkens gym och simhall · Personalförmåner genom PostNord Plus – PostNords egen personalstiftelse

Om oss

Vi tar Norden framåt. PostNord erbjuder pålitliga och snabba tjänster inom paket, brev och integrerad logistik i hela Norden, med siktet inställt på nettonollutsläpp till 2040. Genom att koppla samman människor, platser och möjligheter, hjälper vi våra kunder att växa och erbjuder smidiga leveranser för konsumenter. Med vårt unika nordiska nätverk och klimatledarskap, formar vi framtidens e-handel och logistik. 2025 hade koncernen cirka 27 000 anställda och en omsättning på 36,2 miljarder SEK. Moderbolaget är ett svenskt publikt bolag med koncernkontor i Solna. Vi är PostNord – ett fantastiskt företag att jobba och växa med. Läs mer på group.postnord.com.

Ansök

Vi ser fram emot att ta emot din ansökan!

Om du har frågor eller funderingar är du välkommen att kontakta ansvarig chef Carolina Lunde på carolina.lunde@postnord.com.

Vänta inte med att skicka in din ansökan, eftersom vi går igenom ansökningarna löpande. Information om fackliga representanter finns här: Facklig kontakt | PostNord

Vi ser fram emot att höra från dig!

PostNord offers communications and logistics solutions to, from and within the Nordic region. With our expertise and a unique distribution network, we are developing the basis for tomorrow’s communication, e-commerce, distribution and logistics.

Job description

Randstad Digital is currently seeking an Embedded Software Developer for a consultant assignment at a global leader in technology and mobility solutions.

In this role, you will play a key part in shaping the future of advanced technology and mobility solutions by designing, integrating, and debugging software for smart embedded systems and connectivity modules. Working across the entire development lifecycle—from early hardware evaluation to long-term maintenance—you will drive creative, innovative solutions for embedded computing units, connectivity components, and integrated electronic systems. Your work will directly impact modern IoT and mobility solutions, delivering seamless user experiences and cutting-edge performance.

Responsibilities

• Designing, integrating, and debugging software for advanced embedded products, display units, and connectivity modules
• Collaborating within cross-functional agile teams using SAFe across embedded real-time systems, user interfaces, hardware evaluation, and cloud/app interactions
• Developing optimized and efficient code tailored for resource-constrained systems with small memory footprints and low power limits
• Implementing and integrating communication protocols across CAN-bus, Bluetooth Low Energy (BLE), and cellular technologies
• Applying DevSecOps practices, threat modeling, automated security testing, and CI/CD pipelines to ensure rapid and quality-assured software deliveries
• Participating in creative and innovative initiatives to advance algorithms, machine learning integrations, and embedded product capabilities
• Taking full ownership of assignments, solving complex technical challenges, and sharing knowledge with team members

Randstad Digital Randstad Digital specializes in the field of IT and digital enablement, and is part of Randstad, a global talent leader with the vision to be the world’s most equitable and specialized talent company. Headquartered in the Netherlands, Randstad operates in 39 markets and has approximately 40,000 employees. With this global network, in combination with our strong local foundation, we can offer a wide range of varied and developing assignments and jobs for you who are a specialist in IT. As a partner for talent and through our distinct specialization, we help people secure meaningful roles, develop relevant skills and find purpose and belonging in their workplace.

This is a long-term consultant assignment where you will be a key team member in a dynamic environment, offering a unique opportunity to work with cutting-edge technology at a global company.

Does this sound like you? We look forward to receiving your application! Selections are made on an ongoing basis, so please don't hesitate to submit your resume today, no later than 2026-09-25. If you have any question please contact Emma Johansson, emma.johansson@randstad.se.

Qualifications

We are looking for a collaborative team player with strong social skills and a positive, "can-do" attitude. You take full ownership of your assignments, drive tasks to completion on schedule, and act as a natural technical go-to person who is eager to learn and share knowledge with colleagues.

To succeed in this role, you must have:

• Bachelor's or Master's degree in Electrical Engineering, Computer Science, or a related field
• 10+ years of embedded software development experience, preferably within IoT products
• Hands-on experience with embedded IoT networking protocols such as CoAP, MQTT, REST, or V2X (DSRC/c-V2X)
• Experience with C++ programming using RTOS platforms (e.g., FreeRTOS)
• Proven ability to develop efficient code for resource-constrained systems (small memory footprint, low power requirements)
• Solid experience in sub-system/peripheral integration and hardware debugging (using JTAG or similar)
• Hands-on experience with Bluetooth/BLE, NB-IoT, LTE-M, or other cellular technologies
• Experience leveraging DevSecOps practices and techniques (threat modeling, automated security testing, CI/CD, communication and collaboration) in an agile (SAFe) environment

We'll be particularly impressed if you also have:

• Experience in service development and IoT management
• Knowledge of low-power design and power measurement techniques
• C programming skills
• Experience with algorithm development, machine learning, and the Atlassian tool suite

About the company

Randstad

Ericsson AB

About this opportunity:The RAN System Management & Architecture  sector leads and enables a distributed systemization and engineering of the constituent parts of the RAN system. We are seeking for an experienced System Data Scientist to establish and lead our RAN data platform across system development, research, AI/ML and agentic workflow initiatives. 

In this role, you will build comprehensive data systems and analytical frameworks that enable data-driven decision-making across the organization. You will combine advanced AI/ML expertise (LLMs, GenAI, traditional ML) with full-stack data science capabilities and end-to-end system ownership. Leading a team of data scientists, you will design scalable data architectures, implement analytical systems, and deliver high-impact insights. Working closely with the Senior Data Platform Architect, you will define system requirements, optimize data pipelines, and ensure analytical infrastructure supports organizational needs.

What you will do:•    Lead AI/ML initiatives including GenAI, LLMs, and traditional machine learning across diverse use cases and business scenarios•    Develop and deploy production ML models with expertise in model versioning, monitoring, and A/B testing (MLOps practices)•    Build and implement GenAI applications and LLM including prompt engineering, fine-tuning, and Retrieval-Augmented Generation (RAG) solutions•    Extract actionable insights from complex data and drive data-driven decisions across CI/CD optimization, research experimentation, product metrics, and business operations•    Perform advanced feature engineering and model optimization to ensure high-performance analytical solutions•    Build time series forecasting models for CI/CD predictions and capacity planning•    Collaborate with data platform and engineering teams to define requirements and implement solutions•    Lead and mentor a team of 4-6 data analysts, fostering innovation and continuous improvement

The skills you bring:•    3+ ML models deployed to production with hands-on experience in LLMs (OpenAI, Anthropic, open-source) and GenAI applications (chatbots, code assistants)•    Advanced Python programming for production environments and expertise in snowflake  or Apache Spark for large-scale data processing•    SQL mastery including complex queries and optimization; experience with data lakehouse technologies (Iceberg, Delta Lake, Parquet)•    Understanding of distributed systems, production data pipelines, and MLOps practices•    Advanced statistical methods (hypothesis testing, regression, causal inference) and ability to translate business questions into analytical solutions•    Can articulate model architecture choices and technical tradeoffs•    Nice-to-have: Kubernetes/Docker, Apache Airflow, streaming data processing (Kafka, Spark Streaming), dbt, and software development metrics dashboards•    Master's or PhD in Data Science, Statistics, Computer Science, or related field•    Optional certifications: Google Professional ML Engineer, AWS ML Specialty, Databricks ML Professional

LocationKista, Stockholm (Sweden), Athlone (Ireland), work from one of our Ericsson offices in these locations.

Öppen för alla Vi fokuserar på din kompetens, inte dina övriga förutsättningar. Vi är öppna för att anpassa rollen eller arbetsplatsen efter dina behov.

Ericsson AB

About this opportunity:

We are seeking a System Data Scientist to establish and lead Ericsson's analytics function across software development, research, and AI/ML initiatives.

In this role, you will learn of build comprehensive data systems and analytical frameworks that enable data-driven decision-making across the organization. You will combine AI/ML expertise (LLMs, GenAI, traditional ML) with full-stack data science capabilities and end-to-end system ownership. Working closely with the Data Platform Team, you will define system requirements, optimize data pipelines, and ensure analytical infrastructure supports organizational needs.

What you will do:

•    Learn to transform raw, disconnected information into trusted, ready-to-use data for artificial intelligence and Agentic workflows•    Learn AI/ML initiatives including GenAI, LLMs, and traditional machine learning across diverse use cases and business scenarios

The skills you bring:

•    Master’s degree or PhD in Telecommunication or similar•    Experience in driving studies telecommunications or AI technical areas•    Experience in presenting technical information to larger Audiences•    Python programming for production environments and expertise in managing large   data sets and data pipelines•    Experience with process in systematization of products•    A productive, creative mindset can help you interact easily with other people

Öppen för alla Vi fokuserar på din kompetens, inte dina övriga förutsättningar. Vi är öppna för att anpassa rollen eller arbetsplatsen efter dina behov.

Senior Full-Stack Engineer (ML & Data)

Own our prediction models from training pipeline to customer-facing feature. Strong applied ML — calibration, evals, leakage — plus full-stack TypeScript to ship it.

We build AI agents that audit and optimize e-commerce advertising. Our platform syncs live data from Google Ads, Meta, Merchant Center, and Google Analytics, runs it through a rule engine, LLM-powered audit agents, and our own prediction models, and turns findings into concrete actions marketers can apply with one click.

What sets us apart is measurement: we connect real profit data from our customers' e-commerce platforms to their ad accounts and build models that tell them what their marketing actually returns — not what ad platforms self-report. The ML in our product isn't decoration. Prediction models, calibration, and evaluation pipelines are core to what customers pay for.

We're a small team shipping fast on a modern, strictly-typed stack. You'd report directly to the CTO, with real ownership: features you design end-to-end, and models you own from training data to the number a customer sees on screen.

The role

This is a hybrid role — roughly 60% product engineering, 40% ML & data science. You'll ship full-stack features in our TypeScript monorepo and own prediction models as production software: framing the problem, building training and evaluation pipelines, monitoring calibration drift, and wiring outputs into the product.

We're not looking for a research scientist, or a pure web engineer. We want someone who treats a model the way a good engineer treats a service: tested, monitored, versioned, and honest about its failure modes.

What you'll do

• Own prediction models end-to-end — models that predict product returns and net profit per order — training data pipelines, feature engineering, evaluation (ranking quality and calibration), recalibration strategies, and serving model output into the product.
• Build and maintain data pipelines — SQL feature builders on PostgreSQL shared by training and serving, versioned dataset exports, backfills, and data quality checks that keep training data honest (no leakage, no silent schema drift).
• Design and build features across our TypeScript monorepo — tRPC procedures and NestJS services on the backend, React on the frontend — so model insights become actions marketers can apply with one click.
• Work on the AI audit agent — prompt design, rule evaluation, structured-output evals, and plumbing that turns LLM output into reliable, deduplicated actions across multiple model providers.
• Extend integration workers — sync campaign, product, and analytics data from Google and Meta APIs via Cloud Pub/Sub pipelines.
• Evolve the data model in PostgreSQL/Prisma — keep migrations, multi-tenancy, and role-based access clean as the product grows.
• Own quality — write tests (Jest on TypeScript, pytest on Python), review PRs, and keep our CI/CD pipeline to Cloud Run fast and boring.

Our stack

Backend — TypeScript, Node, js, NestJS + Fastify, tRPC, Zod, Prisma, PostgreSQL, ML & data — Python, pandas, scikit-learn, XGBoost, PyTorch, ONNX, SQL on PostgreSQL, BigQuery, Calibration pipelines, Bayesian MMM (Google Meridian)

Model serving — FastAPI on Cloud Run · Cloud Run Jobs · GPU training on GCP Batch

Frontend — React · Vite · Tailwind · End-to-end types via tRPC

Infrastructure — Google Cloud Run · Pub/Sub · Docker · Terraform · GitHub Actions · pnpm workspaces

AI & integrations — Multiple LLM providers · Google Ads · Meta · Merchant Center · GA4

What we're looking for

• 5+ years building production software, with strong TypeScript on both server and client — or strong TypeScript on one side plus deep Python, with the willingness to close the gap fast.
• Hands-on applied ML: you've trained, evaluated, and shipped prediction models that real users depended on. You can explain the difference between good ranking and good calibration, know what data leakage looks like, and have debugged a model that was confidently wrong.
• Fluent Python for data work (pandas, scikit-learn or similar) and strong SQL — comfortable with large datasets in PostgreSQL or BigQuery.
• Solid relational database instincts — schema design, migrations, and query performance in PostgreSQL (Prisma is a plus).
• Experience with event-driven or queue-based architectures (Pub/Sub, SQS, Kafka, or similar) and their failure modes.
• A habit of testing: you write tests because they let you move faster, not because someone told you to.
• Pragmatic product sense — you ask why before how, and you'd rather ship a focused, well-measured model than a state-of-the-art one nobody can maintain.

Nice to have

• Bayesian modeling or marketing mix modeling experience (priors, ROI calibration, health diagnostics).
• Hands-on work with LLM APIs in production — prompting, evals, structured output, cost control, switching providers.
• Experience serving models on GCP (Cloud Run, GCP Batch, Vertex AI) and monitoring for drift.
• Familiarity with Google Ads, Meta, or Merchant Center APIs, or ad-tech / e-commerce domain experience.
• NestJS, tRPC, or GCP (Cloud Run, Artifact Registry, Workload Identity) in a previous role.

How we work

Small team, short feedback loops, no ceremony for ceremony's sake. Strict TypeScript, code review on everything, CI that deploys to Cloud Run on merge. Models are held to the same standard as code: evaluated before they ship, monitored after. We optimize for shipping value weekly and keeping the codebase a place people enjoy working in.

We're a fast-growing team building AI agents that handle the repetitive work — so companies can focus on vision, strategy, and innovation. Here, you'll own ideas from first sketch to finished product, work closely with the founders, and see your impact immediately. We celebrate success, learn from challenges, and believe true magic happens through collaboration.

Want to shape the future of AI-driven marketing?

Interviews are conducted on an ongoing basis, so please submit your application as soon as possible.

You will be employed directly by the company. You will receive information about which company the advertisement refers to when you are in contact with the recruiter. Bumbli Group is therefore not the employer but the recruitment agency.

Welcome to submit your application!

Bumbli Group is part of House of Recruitment — a personal, traditional and quality-driven recruitment agency in Gothenburg.

Arbetsbeskrivning

Randstad Digital söker en Embedded Software Engineer för kommande och pågående uppdrag inom säkerhetskritisk mjukvaruutveckling.

Du kommer att utveckla inbäddad mjukvara för högteknologiska styr- och signalsystem där tillförlitlighet står i centrum. Rollen innebär att lösa utmanande tekniska problem och skriva ren, effektiv och säkerhetskritisk kod som uppfyller branschens högsta säkerhetsstandarder.

Ansvarsområden

• Utveckla, designa och underhålla mjukvarukomponenter i C, C++ (eller Ada) för inbyggda realtidssystem.
• Skriva mjukvaruspecifikationer och arkitekturdokumentation baserat på övergripande systemkrav.
• Genomföra enhetstester (Unit Testing), statisk kodanalys samt delta i strukturerade kodgranskningar (code reviews).
• Felsöka och verifiera mjukvara på målhårdvara samt i HIL-miljöer (Hardware-in-the-loop).
• Arbeta aktivt i agila team (Scrum/SAFe) och samarbeta nära verifierings- och valideringsteamet (V&V) för att säkerställa högsta kvalitet och säkerhet.

Randstad Digital specializes in the field of IT and digital enablement, and is part of Randstad, a global talent leader with the vision to be the world’s most equitable and specialized talent company. Headquartered in the Netherlands, Randstad operates in 39 markets and has approximately 40,000 employees. With this global network, in combination with our strong local foundation, we can offer a wide range of varied and developing assignments and jobs for you who are a specialist in IT. As a partner for talent and through our distinct specialization, we help people secure meaningful roles, develop relevant skills and find purpose and belonging in their workplace.

Låter detta som någonting för dig? Vi ser fram emot din ansökan, senast den 2026-09-30! Underkonsulter är också välkomna att ansöka. Urval sker löpande, så tveka inte att skicka in ditt CV redan idag. Har du frågor så är du välkommen att kontakta Emma Johansson, emma.johansson@randstad.se

Kvalifikationer

Vi söker dig som är kvalitetsmedveten, noggrann och metodisk i ditt sätt att arbeta. Du har en god förståelse för hela utvecklingscykeln inom inbyggda system och förstår vikten av robust mjukvarudesign i miljöer där säkerheten alltid kommer i första hand. Som person är du en lagspelare som trivs i en internationell miljö och gärna delar med dig av din kunskap för att driva teamet framåt.

• Civil- eller högskoleingenjörsexamen inom Datateknik, Inbäddade System, Mjukvaruteknik, Elektroteknik eller motsvarande erfarenhet.
• Starka kunskaper i C och/eller C++ samt god erfarenhet av realtidsoperativsystem (RTOS) och/eller inbyggd Linux.
• Erfarenhet av agila utvecklingsmetoder samt moderna verktygskedjor (exempelvis Git, Jira, Confluence, CI/CD).
• Flytande svenska och engelska i tal och skrift.
• Erfarenhet av säkerhetskritisk utveckling på hög nivå (SIL3/SIL4) eller standarder för funktionell säkerhet (t.ex. EN 50128 / EN 50657, ISO 26262 eller DO-178C).
• Praktisk erfarenhet av testning i HIL-miljöer och hårdvarunära felsökning.
• Kunskap om industriella kommunikationsprotokoll (CAN, Ethernet, TCP/IP, MVB).
• Erfarenhet av programmeringsspråket Ada.

Om företaget

Randstad

Arbetsbeskrivning

Randstad Digital söker en Embedded Software Engineer för kommande och pågående uppdrag inom säkerhetskritisk mjukvaruutveckling.

Du kommer att utveckla inbäddad mjukvara för högteknologiska styr- och signalsystem där tillförlitlighet står i centrum. Rollen innebär att lösa utmanande tekniska problem och skriva ren, effektiv och säkerhetskritisk kod som uppfyller branschens högsta säkerhetsstandarder.

Ansvarsområden

• Utveckla, designa och underhålla mjukvarukomponenter i C, C++ (eller Ada) för inbyggda realtidssystem.
• Skriva mjukvaruspecifikationer och arkitekturdokumentation baserat på övergripande systemkrav.
• Genomföra enhetstester (Unit Testing), statisk kodanalys samt delta i strukturerade kodgranskningar (code reviews).
• Felsöka och verifiera mjukvara på målhårdvara samt i HIL-miljöer (Hardware-in-the-loop).
• Arbeta aktivt i agila team (Scrum/SAFe) och samarbeta nära verifierings- och valideringsteamet (V&V) för att säkerställa högsta kvalitet och säkerhet.

Randstad Digital specializes in the field of IT and digital enablement, and is part of Randstad, a global talent leader with the vision to be the world’s most equitable and specialized talent company. Headquartered in the Netherlands, Randstad operates in 39 markets and has approximately 40,000 employees. With this global network, in combination with our strong local foundation, we can offer a wide range of varied and developing assignments and jobs for you who are a specialist in IT. As a partner for talent and through our distinct specialization, we help people secure meaningful roles, develop relevant skills and find purpose and belonging in their workplace.

Låter detta som någonting för dig? Vi ser fram emot din ansökan, senast den 2026-09-30! Underkonsulter är också välkomna att ansöka. Urval sker löpande, så tveka inte att skicka in ditt CV redan idag. Har du frågor så är du välkommen att kontakta Emma Johansson, emma.johansson@randstad.se

Kvalifikationer

Vi söker dig som är kvalitetsmedveten, noggrann och metodisk i ditt sätt att arbeta. Du har en god förståelse för hela utvecklingscykeln inom inbyggda system och förstår vikten av robust mjukvarudesign i miljöer där säkerheten alltid kommer i första hand. Som person är du en lagspelare som trivs i en internationell miljö och gärna delar med dig av din kunskap för att driva teamet framåt.

• Civil- eller högskoleingenjörsexamen inom Datateknik, Inbäddade System, Mjukvaruteknik, Elektroteknik eller motsvarande erfarenhet.
• Starka kunskaper i C och/eller C++ samt god erfarenhet av realtidsoperativsystem (RTOS) och/eller inbyggd Linux.
• Erfarenhet av agila utvecklingsmetoder samt moderna verktygskedjor (exempelvis Git, Jira, Confluence, CI/CD).
• Flytande svenska och engelska i tal och skrift.
• Erfarenhet av säkerhetskritisk utveckling på hög nivå (SIL3/SIL4) eller standarder för funktionell säkerhet (t.ex. EN 50128 / EN 50657, ISO 26262 eller DO-178C).
• Praktisk erfarenhet av testning i HIL-miljöer och hårdvarunära felsökning.
• Kunskap om industriella kommunikationsprotokoll (CAN, Ethernet, TCP/IP, MVB).
• Erfarenhet av programmeringsspråket Ada.

Om företaget

Randstad

Ericsson AB

About this opportunity:The RAN System Management & Architecture  sector leads and enables a distributed systemization and engineering of the constituent parts of the RAN system. We are seeking for an experienced System Data Scientist to establish and lead our RAN data platform across system development, research, AI/ML and agentic workflow initiatives. 

In this role, you will build comprehensive data systems and analytical frameworks that enable data-driven decision-making across the organization. You will combine advanced AI/ML expertise (LLMs, GenAI, traditional ML) with full-stack data science capabilities and end-to-end system ownership. Leading a team of data scientists, you will design scalable data architectures, implement analytical systems, and deliver high-impact insights. Working closely with the Senior Data Platform Architect, you will define system requirements, optimize data pipelines, and ensure analytical infrastructure supports organizational needs.

What you will do:•    Lead AI/ML initiatives including GenAI, LLMs, and traditional machine learning across diverse use cases and business scenarios•    Develop and deploy production ML models with expertise in model versioning, monitoring, and A/B testing (MLOps practices)•    Build and implement GenAI applications and LLM including prompt engineering, fine-tuning, and Retrieval-Augmented Generation (RAG) solutions•    Extract actionable insights from complex data and drive data-driven decisions across CI/CD optimization, research experimentation, product metrics, and business operations•    Perform advanced feature engineering and model optimization to ensure high-performance analytical solutions•    Build time series forecasting models for CI/CD predictions and capacity planning•    Collaborate with data platform and engineering teams to define requirements and implement solutions•    Lead and mentor a team of 4-6 data analysts, fostering innovation and continuous improvement

The skills you bring:•    3+ ML models deployed to production with hands-on experience in LLMs (OpenAI, Anthropic, open-source) and GenAI applications (chatbots, code assistants)•    Advanced Python programming for production environments and expertise in snowflake  or Apache Spark for large-scale data processing•    SQL mastery including complex queries and optimization; experience with data lakehouse technologies (Iceberg, Delta Lake, Parquet)•    Understanding of distributed systems, production data pipelines, and MLOps practices•    Advanced statistical methods (hypothesis testing, regression, causal inference) and ability to translate business questions into analytical solutions•    Can articulate model architecture choices and technical tradeoffs•    Nice-to-have: Kubernetes/Docker, Apache Airflow, streaming data processing (Kafka, Spark Streaming), dbt, and software development metrics dashboards•    Master's or PhD in Data Science, Statistics, Computer Science, or related field•    Optional certifications: Google Professional ML Engineer, AWS ML Specialty, Databricks ML Professional

LocationKista, Stockholm (Sweden), Athlone (Ireland), work from one of our Ericsson offices in these locations.

Öppen för alla Vi fokuserar på din kompetens, inte dina övriga förutsättningar. Vi är öppna för att anpassa rollen eller arbetsplatsen efter dina behov.