Mannheim, Baden-Württemberg, Germany Hybrid Employment

Osapiens is hiring a Senior Full-Stack Developer

About the Role

Osapiens is hiring a Senior Full-Stack Developer to scale our solutions in Business Partner Transparency, Product Transparency, and Operations Efficiency. You will develop new products at the intersection of enterprise software and environmental intelligence.

What You'll Do

  • Design, build, and optimize full-stack features using modern frontend and backend technologies, ensuring scalability and maintainability.
  • Develop and enhance innovative software solutions that automate complex compliance workflows for businesses of all sizes.
  • Collaborate closely with product managers, designers, and engineers in small, agile squads to define, refine, and implement features.
  • Ensure high-quality, secure, and efficient code through rigorous reviews, automated testing, and continuous integration/deployment practices.
  • Own the architecture and design of solutions, optimizing performance, reliability, and user experience.
  • Contribute to technical strategy and decision-making, identifying opportunities for innovation and process improvements.
  • Mentor and support junior developers, fostering a culture of learning and technical excellence within the team.

What We're Looking For

  • Strong experience in full-stack development with a focus on Typescript, Node.js, React, and Javascript.
  • Expertise in web services development and integration like REST and GraphQL.
  • Familiarity with Git for version control and collaboration.
  • A strong product mindset, thinking beyond code to user experience, business impact, and scalability.
  • Agile experience, comfortable working in sprints, participating in stand-ups, and iterating quickly.
  • Excellent communication skills in English (C1).

Nice to Have

  • German language skills (B1+).

Technical Stack

  • Languages: Typescript, Javascript
  • Frameworks: Node.js, React
  • Services: REST, GraphQL
  • Tools: Git

Team & Environment

You'll work in small, agile squads of 5-7 people, collaborating closely with product managers, designers, and engineers.

Benefits & Compensation

  • A purpose-driven mission tackling complex sustainability challenges.
  • Room for creativity through collaborative teamwork and an open communication culture.
  • Flexibility and team bonding with hybrid work options.
  • Fuel for your growth journey, both personally and professionally.
  • Sustainable mobility options, promoting eco-friendly commuting solutions.
  • Fun team events and outings with our global teams.
  • Inspiring workspaces in Mannheim and beyond.

Work Mode

This is a hybrid position based in Mannheim, Germany.

Osapiens is an equal opportunity employer.

Required Skills
TypescriptNode.jsReactJavascriptRESTGraphQLGitWeb ServicesFull-Stack DevelopmentAgile MethodologiesVersion ControlProduct MindsetScalability
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About company
Osapiens

Osapiens builds the AI-driven osapiens HUB - a multi-tenant platform hosting 26 enterprise-grade solutions designed for cross-company collaboration, automation, and compliance.

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Job Details
Department Software Development
Category fullstack
Posted 14 days ago