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November 3, 2026

Senior .NET Engineer

Senior • On-site

208,000 - 312,000 PLN/yr

Kraków, MA, Poland

Quick Facts

Role: Senior .NET Engineer

Primary focus: Designing and building Azure cloud solutions with .NET and C#

Description

Design, develop, test, deploy, and support RelativityOne cloud solutions built on Azure using .NET and C#. Work end-to-end on a greenfield product within a Scrum team, collaborating with engineers and business stakeholders to deliver scalable, secure features. Provide technical leadership, mentor engineers, and help drive continuous improvement across development, deployment, and operations.

Responsibilities

  • Contribute to Scrum delivery across the full software lifecycle (design, development, testing, deployment, operations).
  • Architect and design performant, scalable, and secure solutions with a quality-first mindset.
  • Apply object-oriented principles and SOLID/design patterns using C#, TypeScript, and JavaScript.
  • Provide technical guidance, participate in code reviews, and promote engineering best practices.
  • Develop unit and integration testing strategies, including static analysis.
  • Improve engineering processes and automate repetitive operational tasks.
  • Contribute to CI/CD deployment and upgrade workflows.
  • Use monitoring and observability to proactively identify and resolve issues.
  • Troubleshoot production issues and respond to customer-specific defects/problems.
  • Coach and mentor team members; participate in second-line on-call rotation after domain ramp-up.

Benefits

  • Competitive salary and benefits
  • DTO, parental leave, and equity program
  • Annual performance bonus and long-term incentives

Requirements

  • Bachelor’s degree in Computer Science/Engineering or equivalent practical experience
  • 5+ years commercial software development with C#
  • Cloud-scalable solutions experience with cloud-native patterns (preferably Azure)
  • Scalable database technologies experience
  • DevOps mindset with CI/CD tools (GitHub Actions, Harness, LaunchDarkly) and mature observability
  • Ability to design and implement deployment/release solutions
  • Strong software engineering best practices (unit testing, code reviews, debugging, troubleshooting, documentation)
  • Hands-on AI tool integration in engineering workflows (coding/refactoring/review, design/documentation, release planning, evaluation/ownership of decisions)
  • Agile team experience with mentoring and cross-functional collaboration
  • Fluency in English

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