Senior Backend Developer - (Typescript)

Department: Business Partner Transparency

Employment Type: Permanent - Full Time

Location: Mannheim

Description
As a Senior Backend Developer, youll play a key role in shaping the future of Business Partner Transparency (BPT) within our osapiens HUB. This enterprise-grade platform helps companies comply with critical ESG regulations like:

• The German Supply Chain Due Diligence Act (LkSG) – ensuring suppliers uphold human rights and environmental standards. 
• The Whistleblower Directive – providing secure, anonymous reporting channels. 
• The Corporate Sustainability Due Diligence Directive (CSDDD) – upcoming EU-wide sustainability compliance. 

Our osapiens HUB is a modern, enterprise-grade development platform that enables businesses to build powerful applications without worrying about infrastructure, scaling, or failover. Youll help develop and refine this cutting-edge, serverless ecosystem while delivering meaningful solutions for international clients. 
This role is based in Mannheim, where youll collaborate with a talented, forward-thinking team. 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. 
Key Responsibilities

• Design, build, and optimize backend features using modern front-end and back-end 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 for 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. 

Skills, Knowledge and Expertise

• Strong experience in backend development with a focus on and TypeScript. 
• 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, but not necessary.

Benefits

• A purpose-driven mission with and for global industry pioneers in tackling complex challenges 
• 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