Title: Senior Software Engineer - Privacy-First Communications Infrastructure
The roleWe're looking for a Senior Software Engineer to join a small, high-calibre team with strong open-source backgrounds and a culture of real technical ownership. The stack is centred around Rust, with PostgreSQL, Redis, and NATS across the data layer. The product sits at the intersection of backend infrastructure and cryptographic systems, meaning the challenges go well beyond standard application development. You'll work on secure data flow, performance at scale, and designing systems that remain reliable under strict privacy constraints.
Requirements - Demonstrated excellence outside of work
- Open-source contributions, side projects, or other evidence of self-directed engineering ambition
- 3+ years building and operating high-throughput backend systems at scale, with ownership of technical directionHands-on production experience with PostgreSQL, Redis, and NATS - schema design, query tuning, and failure recovery
- Strong systems programming fundamentals: concurrency, memory management, networking, and performance profiling (Rust, Go, C++, or equivalent)
- Experience designing client-facing SDKs or APIs with stable contracts, versioning, and cross-platform consistency
