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Senior Developer Fullstack

Jack Project GmbH

Vöcklabruck · flexible Senior €5k – €5k/mo 3w ago

About the role

Your role in the team

  • Customer projects: client-specific functions and extensions.
  • Requirements analysis together with us and our clients.
  • Mid-term: direct support for clients on support and feature topics.
  • Further development of our standard product: new features, refactoring, performance optimization.
  • AI as a product feature: Integration of AI services into our customer workflows – from RAG-based search in knowledge databases to AI integration for ticket and task management, as well as intelligent automation of recurring workflows.
  • AI-First Development: You utilize modern AI tools ('Vibe Coding') not as a gimmick, but as a core part of your workflow.

What we offer

  • Market-compliant remuneration starting from € 5,000 gross (€ 70,000 p.a.), depending on qualifications and experience.
  • A committed team that supports each other.
  • Stable product with genuine paying customers.
  • Flexible working hours.
  • 100% remote work after onboarding (partially on-site in Vöcklabruck).

Technologies and skills

  • C#
  • SQL Server
  • .NET
  • JavaScript

Our expectations:

Qualifications

  • Independent working.
  • Architectural understanding: You can not only implement features but also assess whether a solution approach is sustainable in the long term.
  • Solid SQL Server expertise.
  • Confident handling of JavaScript without relying on framework magic.
  • Very good German skills for customer contact in the DACH region.

Experience

  • Several years of experience in C# / .NET / Web Development (both .NET Framework 4.8 and current .NET).

Benefits

  • Flexible Working Hours

Skills

.NETC#JavaScriptSQL Server

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