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StepStone Group

Senior Software Engineer II (Data & AI Platform)

  • Warsaw, Poland
  • Posted 2 Nov 2026
  • Data Science & AI
  • English-speaking

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About the job

Who we are

At The Stepstone Group, we have a simple yet very important mission: The right

job for everyone. Using our data, platform, and technology, we create

opportunities for job seekers and companies around the world to find a perfect

match, in a fair and equitable way. With over 20 brands across 30+ countries, we

strive for fair and unbiased hiring.

At our Tech Hub, located near Wilanowska Metro, we are here as more than 300

ambitious specialists who work on the development of our IT products. We are

proud to be part of The Stepstone Group, a global expert in job-tech platforms

and e-recruiting.

Join our team of 3,000+ employees and be part of reshaping the labour market

and becoming the world’s leading job-tech platform.

The job at a glance

Join our team and you’ll be responsible for providing technical leadership for our Data Platform team, defining technical direction and driving architectural decisions across data, platform and infrastructure domains.

Working in the Data Platform department you will build scalable, reliable and well-governed data platform capabilities that support analytics, AI and business-critical products, while collaborating closely with Engineering Managers, Product Managers and Enterprise Architects.

This is so important to us. By joining our team, you will be playing a vital role as together we reimagine the labour market to make it work for everybody.

Your responsibilities

  • Define and evolve the technical vision, roadmap and architecture of the Data Platform, driving decisions across data, platform and infrastructure domains
  • Establish engineering standards, best practices and reusable patterns while partnering with Enterprise Architecture and influencing technical direction
  • Drive engineering excellence by improving code quality, testing, observability, reliability and operational practices
  • Support end-to-end delivery by guiding teams through complex technical challenges, improving decision-making, and contributing to planning and risk management
  • Mentor engineers, grow senior technical capabilities and champion AI-assisted development and engineering automation

Your skills and qualifications

  • Proven experience as a Senior Software Engineer or Senior Data Engineer or in an equivalent senior individual contributor role
  • Strong background in data platforms, distributed systems and cloud-native architectures, with experience shaping technical direction across teams and stakeholders
  • Solid expertise in relevant technologies such as AWS, Terraform, Kafka/MSK, Airflow, Glue or Spark, and building scalable data solutions
  • Experience with modern data ecosystems including data lakes/lakehouse architectures, Iceberg or similar table formats, as well as batch and streaming processing
  • Knowledge of data quality, governance, cataloguing and observability tools (e.g. Datadog), with DBT or AI-assisted engineering practices as a plus

Your benefits

We’re a community here that cares as much about your life outside work as how you feel when you’re with us. Because your job shouldn’t take over your life, it should enrich it. Here are some of the benefits we offer:

  • Premium medical and dental care
  • Life insurance
  • Flex Benefits - Worksmile Cafeteria System (Multisport, vouchers, tickets etc.)
  • Employee Referral Program
  • Hackathons, Knowledge Sharing Hours, In-house projects
  • Tech and sport communities
  • Events and integration parties
  • Charity initiatives, 2 extra volunteer days
  • English/German classes
  • Game room and chillout zone

Our commitment

Equal opportunities are important to us. We believe that diversity and inclusion at The Stepstone Group are critical to our success as a global company, so we want to recruit, develop, and keep the best talent. We encourage applications from everyone, regardless of background, gender identity, sexual orientation, disability status, ethnicity, belief, age, family or parental status, and any other characteristic.

Published by StepStone Group through its SmartRecruiters job board. JobWin is not affiliated with StepStone Group. View original posting

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