Senior Software Engineer (.NET / Java & AI Development)

Antal • English: C1 • Artificial Intelligence • Paid as a contractor rate • Java • C# • 1 day ago
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Salary
$82k – $92k per year
Location
In office (Poland)
Seniority
Senior · 5+ years exp

Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Oct 12, 2026. Antal scores A on the Alion truth index.

Overview
Company
Impact
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Antal

Antal is a recruitment firm operating in Poland as part of the international Antal network, placing specialists and managers with employers across the country. It recruits for technology, engineering, finance, shared services, sales, pharmaceuticals and human resources roles, working on permanent placement, executive search and interim assignments, and running its own market research on salaries and hiring conditions in Poland. The Polish business also publishes regular labour market reports that are widely cited by employers, and it posts a high volume of client vacancies under its own name rather than the hiring company's.
antal.pl • HQ: Warsaw, Poland • Executive Search • Recruiting & Staffing • 51-200 employees • Est. 1996

We are looking for a Senior Software Engineer with strong expertise in .NET/C# or Java and practical experience using modern AI coding tools. This role combines hands-on software development with AI-assisted coding and Specification-Driven Development (SDD), focusing on delivering reliable enterprise applications without compromising engineering quality.

Location: Remote (within Poland)

Employment Type: B2B

Rate: 160-180 PLN/h

Language: English (fluent)

Key Responsibilities

  • Design, develop, and maintain enterprise applications using .NET/C# or Java.
  • Translate business requirements into structured specifications and production-ready solutions.
  • Leverage Claude Code, GitHub Copilot, Cursor, and similar AI tools throughout the development lifecycle.
  • Review, validate, and improve AI-generated code to ensure quality, security, and maintainability.
  • Collaborate with Product Owners and engineering teams to deliver scalable software solutions.
  • Apply best practices in testing, debugging, code reviews, Git, and CI/CD.

Required Qualifications

  • 5+ years of commercial software development experience.
  • Strong expertise in .NET/C# (preferred) or Java.
  • Hands-on experience with AI-assisted development tools, ideally Claude Code.
  • Experience with Specification-Driven Development or specification-first engineering approaches.
  • Strong understanding of software architecture, clean code, testing, and modern development practices.
  • Ability to critically assess and improve AI-generated solutions.
  • Independent, analytical, and delivery-focused mindset.

Nice to Have

  • Recent experience with Claude Code in specification-driven workflows.
  • Experience with GitHub Copilot, Cursor, or similar AI coding platforms.
  • Cloud experience (Azure or AWS).
  • Familiarity with Docker and distributed systems.
  • Experience promoting AI-assisted development practices within engineering teams.
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