Senior Backend Engineer – Agentic Systems (m/f/d)

What we look for: You build the production backbone that enables our Forward Deployed AI Engineers (FDEs) to turn agentic workflows into secure, reliable, measurable, and reusable customer solutions. You design and develop scalable backend services, APIs, asynchronous workflows, queues, databases, and distributed systems using Python, TypeScript, or comparable technologies. You create robust orchestration patterns for agentic systems, including tool calling, stateful workflows, routing, retries, human approvals, and context management. You build and maintain integrations with enterprise systems and SaaS applications, including OAuth, webhooks, SDKs, API clients, and data ingestion pipelines. You ensure production reliability through resilient error handling, idempotent design, rate-limit management, fallbacks, audit logs, and effective incident debugging. You develop evaluation and observability capabilities, including test datasets, trace capture, quality metrics, structured logging, workflow-level dashboards, and cost and latency monitoring. You establish shared platform primitives, templates, security standards, and governance patterns that accelerate each new FDE deployment while protecting customer data. What we require: You hold a degree in Computer Science, Software Engineering, or a related field. You have 4-6 years of experience in backend engineering, platform engineering, distributed systems, or comparable software engineering roles. You have strong hands-on programming skills in Python, TypeScript, or both, and a solid understanding of modern software engineering best practices. You have experience designing and operating scalable APIs, asynchronous systems, queues, databases, and distributed services in production environments. You are familiar with enterprise integrations, including OAuth, webhooks, REST APIs, SDKs, and data ingestion or normalisation pipelines. You have practical experience with LLM or agentic application patterns, such as tool calling, orchestration, state management, retrieval, evaluation, or observability. You are fluent in English and able to communicate technical topics clearly with engineers, FDEs, and client stakeholders; additional local language skills are a plus. What you can expect: Your impact is crucial : You actively shape the digital future in a highly motivated & smart team in direct cooperation with the founders & partners, creating real added value by linking strategy and implementation. Your hard work pays off! You benefit from attractive salary packages, participation in sales success and exclusive investment opportunities. In addition, we promote our top talents through the “Digital Leaders of Tomorrow” program and thus offer you further exciting benefits. Your development – our concern: From day one, you will be supported on your journey through a wide range of development opportunities, quickly take on responsibility and have the opportunity to shape your individual career at OMMAX –