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Location
In office (Warsaw)
Seniority
Senior · 7+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 14, 2026. First seen by Alion on Oct 20, 2026.

Overview
Company
Impact
Profile match
Scale smarter with Adaptiq: R&D partners who deliver efficient engineering teams, solid infrastructure, and superior software‑product outcomes.
We are looking for an experienced Senior Back End Engineer to join a product engineering team working on complex, large-scale software systems. This is a predominantly backend-focused role, with occasional frontend development when

Responsibilities

Design, develop, and maintain scalable production backend services using TypeScript and Node.js.

Take ownership of system-design decisions for new capabilities and ensure seamless integration with existing infrastructure.

Collaborate with product and engineering teams to understand requirements and translate them into effective technical solutions.

Design and optimize PostgreSQL queries, indexes, and database performance.

Contribute to React-based frontend functionality when

Experience

7+ years of professional backend development experience building production systems at scale, with a strong understanding of distributed systems.

Strong hands-on expertise in TypeScript and Node.js, including developing and maintaining complex backend services.

Solid system-design skills, with the ability to evaluate architectural options and explain technical decisions and trade-offs.

Strong PostgreSQL expertise, including complex SQL queries, query optimization, indexing, and performance tuning.

Familiarity with React and willingness to contribute to frontend development when necessary;

Familiarity with CI/CD, Docker or Kubernetes, and observability, with an understanding of the deployment lifecycle.

Ability to work independently, collaborate across engineering teams;

Strong product-oriented thinking and the ability to connect technical decisions with business and user needs.

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