The Role
As a Senior Full-Stack Developer, you'll design and build features using Typescript and Node.js, enhance software solutions, and mentor junior developers, contributing to the team's agile practices and technical strategy.
Summary Generated by Built In
About osapiens
At osapiens, more than 550 talented minds unite around one mission: enabling sustainable growth for businesses worldwide. Founded in 2018 and headquartered in Mannheim, Germany, we have built the AI-driven osapiens HUB - a multi-tenant platform hosting 26 enterprise-grade solutions designed for cross-company collaboration, automation, and compliance. With offices across Europe and the US, we are shaping the future of scalable and secure business technology.
Your Mission
Join osapiens to scale our solutions focusing on one of the following areas:
Your Mission
Join osapiens to scale our solutions focusing on one of the following areas:
- Business Partner Transparency
- Product Transparency
- Operations Efficiency
As a passionate Senior Full-Stack Developer (m/f/x) with a strong background in Typescript, Node.js and React, you will be developing new products at the intersection of enterprise software and environmental intelligence.
We are looking for multiple talents to join our teams in Mannheim, a vibrant tech hub at the heart of Germany. Here in our global headquarters, we embrace a hybrid work model, with three days a week in the office, ensuring the perfect balance between in-person collaboration and remote flexibility.
Your Responsibilities
- 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 (5-7 people) to define, refine, and implement features.
- Ensure high-quality, secure, and efficient code through rigorous reviews, automated testing, and continuous integration/deployment (CI/CD) 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.
Your Experience
- Strong experience in full-stack development with a focus on Typescript (mandatory), Node.js (mainly), React and Javascript.
- Expertise in web services development and integration (REST, GraphQL, etc.)
- Familiarity with Git for version control and collaboration.
- Strong product mindset – you think beyond code, considering 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). German is a bonus (B1+).
Join us for this and more...
- A purpose-driven mission tackling complex sustainability challenges while working alongside global industry pioneers at a fast-growing unicorn company
- Room for creativity through collaborative teamwork and an open communication culture
- Flexibility and team bonding with our 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
About
osapiens develops holistic Software-as-a-Service solutions that help global companies ensure transparency, efficiency, and trust across their entire value chain. Through its cloud platform, the osapiens HUB, the company leverages innovative technologies, including artificial intelligence, to strengthen businesses while promoting human rights, ecological responsibility, and sustainable corporate governance.Founded in 2018 and headquartered in Mannheim, Germany, osapiens works with around 2,500 companies in over 50 countries across industries such as consumer goods, automotive, fashion, pharmaceuticals, and medical products. The company is backed by Goldman Sachs and Decarbonization Partners, reinforcing its commitment to responsible, sustainable growth and has reached unicorn status in January 2026.
Skills Required
- Strong experience in full-stack development with focus on Typescript
- Expertise in web services development and integration (REST, GraphQL)
- Familiarity with Git for version control
- Excellent communication skills in English (C1), German (B1+)
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The Company
What We Do
osapiens develops holistic Software-as-a-Service (SaaS) solutions that help global companies ensure transparency, efficiency, and trust across their entire value chain. Through its cloud platform, the osapiens HUB, the company leverages innovative technologies, including artificial intelligence, to strengthen businesses while promoting human rights, ecological responsibility, and sustainable corporate governance. Headquartered in Mannheim, Germany, osapiens supports over 2,500 customers worldwide, from SMEs to global enterprises, in driving sustainable growth and regulatory compliance.
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