Backend Engineer

Camunda is the enterprise platform for agentic orchestration, enabling organizations to coordinate AI agents, people, and systems across complex, end-to-end business processes. Fully remote and global, we are transforming into an AI-first organisation, built on our own platform. About the role: As a Senior Software Engineer on Camunda's Core / API & Process Automation team, you'll work on the beating heart of Camunda 8 — the event-sourced, distributed workflow engine that executes business-critical processes for thousands of customers. You'll squeeze the last drops of performance out of the hot paths, design maintainability and versioning strategies, and reason about concurrency. Enabling AI agents to integrate with and drive the engine is cutting-edge work. What You’ll Be Doing: - Design, build, and evolve the event-sourced engine and its C8 REST/gRPC/MCP API (command/event, CQRS), including safe public-API evolution. - Take on hard, ambiguous problems and lead them end-to-end — define the problem, write the solution design (ADR), weigh trade-offs pragmatically, sequence the work, and drive delivery. - Ship high-impact engine features fast — such as suspending and resuming individual process instances, and enabling AI agents to steer running processes. - Ship resiliency, schema evolution, and observability. - Detect and optimize inefficient processing and data-access patterns across our data stores (RocksDB, Elasticsearch/OpenSearch, relational/Postgres). - Level up the team and lead incidents — high-quality reviews, mentoring, and winning technical debates with reasoning; on call, drive resolution, own the RCA. What You Bring: - 5+ years professional backend engineering, with real depth in distributed and event-driven systems. - Deep event sourcing / distributed execution knowledge— consistency, ordering, replay, and their failure modes. - Strong API design and evolution — contract-first, backward-compatible change, versioning/deprecation, contract testing. - Diagnosing/fixing performance under production load — profiling, benchmarking, tail-latency and backpressure reasoning. - Technical leadership from ambiguity — work autonomously, break down undefined problems, drive pragmatic decisions, disagree-and-commit, and level other engineers up. - Communication & product sense — crisp technical writing (ADRs), remote-first collaboration, deep product thinking. Nice-to-haves: - Experience with workflow automation / process orchestration (BPMN or similar). - Awareness of the consensus/replication protocols the engine builds on (Raft, SWIM, etc.). - Deep query-pattern optimization in RocksDB, Elasticsearch/OpenSearch and relational/Postgres. - Solid JVM knowledge (memory model, concurrency/perf). Compensation: United States: $143,800.00 to $231,900.00 United Kingdom: £90,300.00 to £148,500.00 Singapore: S$178,600.00 to S$267,900.00 Canada: C$152,700.00 to C$251,200.00 Equity: Virtual Stock Option Plan (VSOP). Benefits & Perks: - Remote & Flexible: Home office budget, co-working space support, and flexible time off. - In Person Connection: Annual Kickoff, team offsites, and Camundi Connection Budgets. - Health & Wellbeing: Locally tailored healthcare, Modern Health for mental wellbeing, and Live Well Lifestyle Spending Account (LSA) scaling to €1,000 annually from 2027. - Financial Security: Retirement and pension plans, life and disability insurance. - Professional Growth: Up to $/€/£1,000 per year for self-driven learning.