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On The Spot Development

Senior Data - Software Engineer

On The Spot Development All Cities 1 day ago
engineering
We bring startups and disruptive tech companies to the local market, offering engineers the opportunity to work on innovative, high-impact products. Join us and become a member of their R&D team while we take care of employment, HR support, a benefits package, and an enjoyable work environment.

We’re looking for Senior Data - Software Engineer to join the team at a performance-marketing agency that works across more than 25 industry verticals. They focus on using advanced data analytics and tailored creative strategies to drive conversions — the agency handles everything from lead generation and campaign optimisation (through search, social media and newer platforms) so their clients can focus on growth. 

Responsibilities

  • Design, build, and maintain high-performance, reliable data systems, including real-time pipelines, tracking infrastructure, and Feature Store foundations to support analytics and ML production
  • Develop low-latency, scalable data services capable of handling high-throughput workloads in distributed systems
  • Collaborate closely with ML teams to ensure features and data are accurate, consistent, and readily available
  • Design and implement data ingestion pipelines, storage schemas, and data quality frameworks to maintain robust and reliable data infrastructure
  • Apply software engineering best practices - clean code, testing, and system design - to ensure maintainable, high-quality solutions

    • Requirements

  • Strong software engineering fundamentals (clean code, testing, system design)
  • Proven experience building real-time, low-latency data services
  • Experience operating in production at scale (high throughput, distributed systems)
  • Strong background with modern data stack (e.g., Kafka/Kinesis, Spark/Flink/Beam,Snowflake/BigQuery/Redshift)
  • Ability to design schemas, ingestion flows, and data quality frameworks
  • Experience collaborating with ML teams on feature availability and consistency

    • Nice to Have

  • Experience supporting ML systems (feature serving, online/offline consistency)
  • Production experience with model inference pipelines
  • Strong DevOps experience (Docker, Kubernetes, CI/CD)
  • Experience with cloud-native architectures (AWS/GCP)
  • Experience implementing data observability / lineage frameworks

    • Benefits

  • Work in a highly professional team. Informal and friendly atmosphere in the team
  • Paid vacation — 20 business days per year, 100% sick leave payment
  • Equipment provision
  • Partially compensated educational costs (for courses, certifications, professional events, etc.)
  • Legal and Accounting support in Poland
  • Ability to work from our comfortable downtown office in Warsaw
  • 5 sick days per year
  • Medical insurance (after the end of the probationary period)
  • English and Polish classes 2 times a week (online)
  • Bright and memorable corporate life: corporate parties, gifts to employees on significant dates

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    Skills in this job

    Kubernetes Devops Docker Aws

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