About the Job As a key growth accelerator, A11 partners with Europe’s most ambitious startups and scaleups, corporates, and SMBs to connect them with top-tier talent ready to make an impact. We’re looking for a motivated Backend Engineer ( AI Agents/Workflows) (m/f/d) to join and drive backend development processes at our Ecosystem Company. As a Backend Engineer, you’ll build, scale, and optimize backend services that bring AI -driven Join the A11 Ecosystem – A next-generation supply chain platform, the company is redefining how one of the world’s largest industries sources, distributes, and finances materials. Engineered to unlock the full potential of global trade, it harnesses agentic AI and workflow automation to provide seamless, high-efficiency access to premium materials at scale. Since its commercial rollout, the platform has fueled exponential growth, optimizing procurement for thousands of businesses while setting new benchmarks for speed, transparency, and efficiency. Its competitive edge lies in full digitization and AI-driven supply chain management automation, eliminating inefficiencies and creating a direct, intelligent bridge between suppliers and buyers. With a team of 80 FTEs across Europe (Berlin HQ), China, and India, the company is rapidly scaling toward profitability, driving triple-digit million GMV, and setting new industry standards in autonomous, AI-powered supply chain orchestration. In this role, you’ll: Design, develop, test, deploy, and maintain backend services that integrate AI /ML capabilities into our products Build clean, maintainable, and reusable code with a focus on scalability and performance Develop and optimize APIs that power AI -driven features Collaborate with frontend engineers to connect user-facing experiences with AI -enabled backend logic Implement and improve distributed systems and data pipelines Work with LLM APIs (OpenAI, etc.) to build intelligent workflows and automation Participate in code reviews, knowledge-sharing sessions, and architecture discussions Stay current with emerging AI technologies and backend best practices Your Profile: 3–5 years of experience as a backend or full-stack engineer, with exposure to AI /ML integrations Solid programming skills in Java (Spring Boot) and familiarity with Python for data processing or AI integration Experience with relational databases (PostgreSQL or BigQuery) and writing efficient queries Comfortable working with cloud infrastructure (AWS preferred) and CI/CD tooling Understanding of distributed systems, event-driven architecture, and microservices Interest or experience in building AI -enabled products (e.g., OpenAI API, fine-tuning models, prompt engineering) Strong communicator able to explain technical ideas to both technical and non-technical stakeholders Proactive, collaborative, and eager to contribute ideas and improvements Please note that this position is based in Berlin. Benefits and Perks: Fulfil a role with entrepreneurial freedom and help scale a high-impact business model Join an experienced founding team of serial and 2nd-time founders Attractive base and bonus compensation program Collaboration with top-tier investors and angels (incl. various unicorn founders) as well as leading market experts If you’re eager to join the A11 Ecosystem and shape what’s next, we want to hear from you! Our Commitment to Diversity and Inclusion A11 is committed to diverse and equal opportunities hiring for all – applicants, candidates, and employees alike. We value humans – with all our glorious multifaceted backgrounds, perspectives, and experiences – and look forward to your application.