Staff/Senior Software Engineer - Hydris - Golang

As a Staff Software Engineer, you'll directly impact the technical direction of Hydris – the coordination engine for sensors and mission systems. You'll work at the layer where heterogeneous real-world systems like radars, AIS receivers, LoRa mesh radios, satellite feeds, and C2 platforms become a single coherent picture. The role is deeply hands-on, but it expects you to shape what we build and how we build it, not just deliver what's specified.

What you'll do

• Design and build the systems that power Hydris. Go is your primary language. You should be comfortable reading Rust and TypeScript across the codebase, even if you're not writing in them day-to-day.
• Own the architecture of a system that must run reliably on edge hardware, in disconnected mesh networks, and at scale — often all of that simultaneously.
• Evolve the schema that defines how every sensor, asset, and mission system talks to Hydris.
• Continue refining the integration framework that lets Hydris connect to new sensor types, data sources, and command systems.
• Architect the peer-to-peer mesh and federation layer that keeps Hydris operational in disconnected, denied, intermittent, and limited-bandwidth environments.
• Set technical standards for the codebase: how we test distributed behavior, how we handle protocol versioning, how we think about backward compatibility in an API-first product.

What you'll need

• Have built and shipped distributed systems that run in production, ideally in environments where reliability matters more than convenience.
• Are comfortable working across the stack, from Protobuf schema design and systems-level Go, to the TypeScript that puts a map in front of a user.
• Have well-formed views about API design and protocol evolution, informed by experience maintaining APIs that other people depend on.
• Can operate effectively with a high degree of autonomy but are adept at collaboration with colleagues toward high-quality technical decisions, at scale.
• Write clearly and communicate architectural decisions in a way that survives beyond the conversation where they were made. Working language is English.

Nice to have

• Experience with geospatial systems, sensor fusion, or track management.
• Familiarity with defense or ISR data standards like CoT/TAK, ASTERIX, SAPIENT, MIL-STD-2525.
• Background in networking, mesh architectures, or systems designed for contested or degraded communication environments.

What they offer

• Remote work anywhere in Germany, or hybrid/on-site in Berlin or Munich.
• High degree of autonomy and ownership, a flat structure, and real input into technical direction.
• Annual €1500 learning and development budget.
• Bike leasing and Urban Sports Club membership.
• 30 days of paid time off.