Senior JavaScript Engineer

We’re looking for a Senior JavaScript Engineer (Node.js + React) with the potential to grow into a Tech Lead role!

You will join a long-term project for a Germany-based company focused on digital transformation and business process automation for SMEs. The core product is a document management system used to streamline internal workflows and improve collaboration.

Major responsibilities:

• Maintain and extend an existing application (Node.js + React)
• Debug and resolve complex issues across frontend and backend
• Implement new features while working within legacy constraints
• Improve performance, stability, and security of the system
• Propose and implement incremental architectural improvements
• Collaborate with the Product Owner and team to clarify requirements
• Mentor junior developers and contribute to team growth.

• 5+ years of experience in JavaScript/TypeScript development
• Strong expertise in React (hooks, context, state management)
• Solid experience with Node.js
• Hands-on experience with MongoDB
• Strong debugging skills and ability to work without full system visibility
• Experience working with large-scale or legacy codebases
• Ability to navigate poorly documented and heterogeneous systems
• Experience working in remote environments (Docker, SSH, remote IDEs, etc.)
• English level B2 or higher.
• Nice to have:
• Expertise with other Front-End framework (Angular, Vue)
• Experience with AI tools and integrations.