Who We Are

Bags.fm is the development company that builds and operates the entire technology stack behind , the leading launchpad for new projects and ideas. The systems are low latency, high throughput, live under constant load, and break if you get them wrong.

What You’ll Do

As a Senior Staff Full Stack Engineer, you’ll remain deeply hands-on while shaping the technical direction of our platform across frontend and backend systems. You’ll own the hardest cross-stack problems - performance, scalability, correctness, and architectural coherence in a fast-moving environment

• Architect and build high-performance systems across the entire stack, directly contributing production code in both frontend and backend layers

• Define and evolve cross-stack architecture that scales with user growth, product complexity, and real-time interaction demands

• Lead complex, multi-surface initiatives end to end - from system design and RFC through implementation, rollout, and iteration

• Design clean boundaries between frontend, backend, and blockchain infrastructure, ensuring systems remain modular and adaptable as we scale

• Anticipate systemic bottlenecks (performance, data consistency, infra limits) and proactively design durable solutions

• Drive improvements in performance, reliability, and observability across the stack

• Rapidly prototype and validate new product ideas while ensuring that successful experiments evolve into production-grade systems

• Raise the bar for engineering quality through design reviews, architectural guidance, and hands-on mentorship

• Act as a technical anchor during critical launches, migrations, or incidents that span multiple parts of the stack

• Improve developer velocity by evolving tooling, CI/CD pipelines, testing strategy, and shared abstractions

Who You Are

• Proven track record of owning large cross-stack systems serving real users under real load

• Deep expertise in TypeScript, React, Next.js, and Node.js (or equivalent backend frameworks), with strong architectural instincts

• Comfortable reasoning about distributed systems, data modelling, caching, and client–server tradeoffs

• Able to move fluidly between frontend performance optimisation and backend system design

• Known for solving ambiguous, cross-cutting technical problems that span multiple layers of the stack

• High-agency and execution-driven - you influence direction by building and shipping

• Comfortable setting technical direction without stepping away from implementation

• Experience in high-growth or high-scale environments where systems must evolve rapidly without collapsing under complexity

• Familiar with crypto, DeFi, or blockchain systems - especially real-time interactions, indexing, or wallet-integrated applications

What it's like to work here

• We work in person

• Hours can be long and unconventional

• The pace is intense

• Expectations are high, and impact is immediate

• Working at Bags.fm is not for everyone

Why Join Us?

• Unmatched ownership and autonomy

• Exposure to systems operating at the edge of crypto scale

• The ability to ship fast and see real-world impact immediately

If you’re motivated by responsibility, speed, and building products used by massive audiences, you’ll feel at home here.