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September 19, 2026
Senior .NET Full-Stack Developer (JavaScript, jQuery)
Senior • Remote
12,000 - 23,000 PLN/yr
Katowice, SL, Poland
Apply now
Quick Facts
Senior .NET Full-Stack Developer (JavaScript, jQuery)
Description
Join a cross-functional application development team to design, code, test, and debug web applications. Build new features on top of an existing product, integrate third-party components into the application framework, and support quality through testing and code reviews. Participate in backlog refinement and help improve existing infrastructure, including on-call pager duty rotations.
Responsibilities
- Design, code, test, and debug web applications
- Develop new features on top of the existing product
- Build new system components and integrate third-party products
- Follow development best practices and participate in code reviews
- Maintain quality throughout the development lifecycle
- Perform development testing to confirm work meets requirements and quality standards
- Review requirements during product backlog refinement/grooming meetings
- Support and improve existing infrastructure
- Participate in pager duty rotations
Requirements
- 3+ years of experience in .NET/C#
- Proficiency in JavaScript and hands-on expertise in jQuery
- Significant experience with the ASP.NET MVC pattern
- Familiarity with Bootstrap
- Solid working knowledge of relational databases and SQL
- Proactive mindset with strong ownership and responsibility for results
- Commitment to code quality, accurate estimation, and timely communication of status and blockers
- Stress tolerance and strong customer focus
- Excellent communication skills and ability to work in a large, globally distributed team
- English proficiency at Upper-Intermediate level (B2) or higher
Benefits
- Top tech minds and an agile, startup-like culture
- Hybrid-by-design with opportunity to work remotely within Poland
- Chance to work abroad for up to 60 days annually and business-driven relocation opportunities
- Career development programs, mentoring, thought leadership, soft skills and well-being programs
- Certification options (Anthropic, Gemini, GCP, Azure, AWS)
- English classes
- Stable pay
- Employee Stock Purchase Plan with a 15% discount
- Health insurance, Multisport, shopping vouchers
- Referral bonuses up to $2,000
- Offices with entertainment and relaxation zones, table tennis/football, free snacks and coffee
- Corporate, social and well-being events
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