Senior Full Stack Engineer
On-siteWarsaw, Mazovia, Poland
Warsaw, Mazovia, PolandOn-siteFull TimeSenior LevelMedium
Full TimeSenior LevelMedium
Job Summary
Design and build full-stack features powering campaign management, reporting, and marketplace optimization, selecting the right language and tools for each problem while keeping front ends lightweight. Build and consume well-designed APIs that integrate DT products into a unified architecture, then own services in production through testing, observability, and performance monitoring. Collaborate directly with product leads to scope and estimate work, then mentor teammates and raise engineering standards through code review and automation.
Required Qualifications
- 8+ years building and shipping production platforms
- heavy skew toward backend architecture, system design, and code optimization
- Strong algorithmic fundamentals, data structures, and a proven track record of solving complex data-processing or resource optimization problems
- Demonstrated ability to be effective in more than one language/ecosystem (e.g., TypeScript/JavaScript, Java, Kotlin, Python, Go, Scala, or C++)
- Solid command of modern front-end frameworks (e.g., React)
- Solid command of back-end service design
- Solid command of relational and/or distributed data stores (MySQL, PostgreSQL, and similar)
- Strong fundamentals in API design, data modeling, testing, and system design
- Comfort operating in a fast-paced, agile, ownership-driven environment with limited hand-holding
- Must be local to the posting location
Desired Qualifications
- Experience with cloud platforms (AWS or GCP), containers, and CI/CD
- Exposure to AdTech, dashboards/BI surfaces, or high-throughput data-driven products
- Experience integrating ML or data services into product workflows
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