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September 1, 2026

Senior Backend Engineer

Senior • On-site

25,000 - 29,000 PLN/yr

Warsaw, MZ, Poland

About the Role

Join a private-equity client to develop critical internal platforms that support business operations at scale. Work in a small, high-performing engineering team building reliable, secure, and maintainable backend solutions.

This role suits engineers who enjoy solving complex technical challenges, writing high-quality code, and collaborating closely with technical and business stakeholders.

Responsibilities

  • Design, develop, and maintain scalable backend services and applications.
  • Build and deploy production-ready solutions with a strong focus on code quality, security, and maintainability.
  • Participate in architecture discussions and contribute to technical decision-making.
  • Collaborate with engineers, tech leads, and business stakeholders to deliver impactful solutions.
  • Develop automated tests and contribute to improving engineering standards and best practices.
  • Support CI/CD processes and continuous delivery of software.
  • Optimize application performance, reliability, and scalability.
  • Participate in all stages of the software development lifecycle, from design to deployment and support.

Requirements

Must Have

  • 8+ years of professional experience in backend or full-stack software development.
  • Strong experience building and maintaining complex backend systems in production environments.
  • Excellent understanding of software engineering best practices, including testing, CI/CD, and code quality.
  • Hands-on experience with at least one backend programming language such as Go or Java.
  • Experience working with relational databases such as PostgreSQL or MySQL.
  • Experience with automated testing frameworks and testing methodologies.
  • Experience working with cloud platforms, preferably Google Cloud Platform (GCP).
  • Strong problem-solving skills and ability to work in a product-oriented environment.
  • Very good spoken and written English.

Nice to Have

  • Experience with data pipelines and tools such as dbt.
  • Experience with TypeScript, React, Node.js, or Next.js.
  • Experience with Kubernetes, Amazon ECS, or other container orchestration platforms.
  • Experience working in product-led organizations.
  • Experience collaborating directly with business stakeholders.
  • Experience building internal platforms or business-critical systems.

What We Offer

  • Opportunity to work on business-critical platforms used across a global organization.
  • Small, highly skilled engineering team with strong ownership and autonomy.
  • Modern technology stack and engineering-driven culture.
  • Long-term project with significant impact on internal products and workflows.
  • Hybrid working model with flexibility and collaborative office environment.

Recruitment Process

  • Screening Call (30 min): A short introductory conversation with the recruitment team to discuss your background, motivation, and role expectations.
  • Cultural Fit Interview: A meeting focused on collaboration style, communication approach, and how you operate in an international environment.
  • Technical Interview: A deeper technical discussion covering data architecture, analytics engineering, and HR data topics, including a hands-on deep dive relevant to day-to-day responsibilities.
  • Final Interview (45 min): A concluding conversation focused on behavioural aspects, leadership and ownership mindset, and managerial alignment.

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