Senior Software Engineer (.NET)

Quick Facts

• Role: Senior Software Engineer (.NET)

• Work mode: Hybrid (2 days per week in the office)

Description

You will influence the architecture and evolution of the product and drive continuous improvement across the engineering ecosystem. You’ll design solutions, mentor junior engineers, and make strategic decisions about framework design and engineering best practices.

Responsibilities

• Design and architect components

• Mentor junior software engineers and perform technical code reviews

• Develop comprehensive testing strategies for complex features

• Optimize system performance, reliability, and maintainability

• Diagnose and resolve complex software, infrastructure, and framework issues

• Collaborate with product and engineering teams to define requirements

• Drive documentation, knowledge sharing, and engineering standards

• Manage technical debt and refactor systems for scale and performance

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent professional experience)

• 5+ years of experience with .NET

• Strong software engineering fundamentals with focus on code quality and scalability

• Practical experience with Software Architecture

• Collaborative approach across teams

• Proficiency in Polish and English

• Experience advocating for quality and engineering rigor

Benefits

• Personal training budget up to 7,000 PLN/year

• Internal and external training and access to online platforms (e.g., LinkedIn Learning)

• Language classes (English/Spanish/German)

• Lunch card (subsidized)

• Free private medical insurance

• Attractive life insurance

• Co-financed Multisport card

• Volunteer day (16 hours per year)

• Up to 30 days of vacation per year

• Up to 1,000 PLN/year to match NGO donations

• Employee Assistance Program with psychological support

• Annual salary review

• Referral bonus (4k–20k PLN depending on role complexity and process)