Note: The job is a remote job and is open to candidates in USA. Plasma is building a global money account and stablecoin payment network for consumers and businesses operating across borders. The Staff+ Software Engineer will own complex technical problems, set direction for core systems, design reliable financial infrastructure, and contribute across backend and frontend systems while mentoring engineers.
Responsibilities
- Own the hardest technical problems inside your team end to end - the ones that need deep judgment, not just execution
- Set technical direction for your team's core systems: architecture, data models, and standards that hold up as the team scales
- Design for reliability first: idempotency, consistency, and graceful failure recovery in systems that move or store real money, or that the network depends on
- Go deep on the backend, but stay full-stack, own the TypeScript service and the data model, and work through the client or API layer when the problem calls for it
- Define how your team's systems handle the hard edge cases: partial failures, retries, timeouts, reversals, reconciliation gaps - whatever “correct under pressure” means for your team
- Contribute, architect and improve the frontend systems and integrations wherever necessary
- Raise the technical bar within your team: code standards, testing strategy, monitoring, incident response, and how the team approaches ambiguous problems
- Mentor other engineers and drive technical clarity on the hardest parts of your team's system
Skills
- • A staff-level, hands-on engineer with a track record of owning production systems end to end, not just contributing to them
- • Backend-leaning but full-stack: deep expertise building backend services in TypeScript (Node.js), with enough range to work through the client layer when needed
- • Strong instincts around reliability and correctness - you think in systems: state machines, data integrity, observability, operational risk
- • Comfortable taking systems from zero to one, and then scaling them without losing clarity
- • Strong judgment on tradeoffs: speed vs. safety, abstraction vs. control, simplicity vs. flexibility
- • You communicate clearly, write clean code, and can lead through technical decisions without needing to manage people
- • You have very high agency and don't wait to be told a problem to work on and proactively find new problems to solve
- • You make decisions based on data and use data to ground whether solutions work
- • Fintech, banking, or crypto-native background
- • Familiarity with stablecoins, custody, settlement, and blockchain transaction lifecycles
- • You've been a founder or early employee at a fast-paced, high agency startup
Benefits
- Token compensation
- Gym access at the London HQ
- Daily food at the London HQ
- Visa sponsorship for those joining from abroad
- Relocation support for those joining from abroad
- Premium health insurance for you and your family, fully covered by Plasma
- Monthly wellness budget, whether that's the gym, therapy, sauna, or massage
- All the tools and tech you need to operate at your best
- Real ownership and responsibility from day one, with your work shipping to hundreds of thousands of people, moving millions of dollars every day
Company Overview