Senior Full-Stack Developer (Node.js +RN)

We are looking for a Senior Full-Stack Developer (Node.js / React Native) to join an established product team.

This is a full-time, long-term position with ongoing work, where you will collaborate closely with an existing, cross-functional team on a mature, scalable product used by international clients.

What You'll Work On

You will contribute to a modern, serverless, enterprise platform, helping build and refine scalable applications without worrying about infrastructure, failover, or scalability constraints.

Key Responsibilities

• Design, build, and optimize full-stack features using Node.js (backend) and React Native (mobile frontend)
• Develop robust, scalable solutions that automate complex compliance and ESG workflows
• Build and maintain mobile applications with a strong focus on performance, usability, and maintainability
• Integrate and manage external APIs and services in a modular and extensible way
• Collaborate with product managers, designers, and engineers in small, agile teams (5–7 people)
• Write clean, secure, and maintainable code with a strong focus on performance and reliability
• Participate in code reviews, automated testing, and CI/CD pipelines
• Take ownership of JavaScript/TypeScript-based architecture and technical decisions
• Contribute to continuous improvement of engineering processes and technical standards
• Mentor junior developers and support overall team growth when needed

Skills & Experience

• Strong senior-level experience with NodeJS 
• Proven experience building mobile applications with React Native
• Solid knowledge of JavaScript and TypeScript (mandatory)
• Experience designing and consuming RESTful APIs and/or GraphQL
• Strong understanding of mobile app architecture, state management, and performance optimization
• Experience integrating and abstracting third-party services/APIs
• Familiarity with unit testing and testing best practices
• Experience with scalable backend architecture and modular system design
• Comfortable using Git in collaborative team environments
• Product-oriented mindset: ability to balance technical decisions with user experience and business impact
• Experience working in Agile/Scrum teams
• English proficiency: C1 level or higher
• German is a plus (B1+), but not required

We offer:

• Long-term employment with competitive compensation, based on experience.

• Possibility to work remotely.

• An open, transparent and fun work culture.

• Multi-national team and collaborative work environment.

• Continuous knowledge sharing with engaged co-workers.

• Career and professional growth opportunities.