Staff Fullstack Engineer

LOCATION

Paris or remote (from -5h GMT up to +2h GMT to ensure sufficient overlap with the rest of the team).

HOW WE WORK

We move fast on hard problems in a nascent market with no set playbook: navigating uncertainty is part of the job. You'll be challenged: anyone can question work and decisions must be justified. We keep a high bar and match it with high support: we help each other unblock and share context openly, with low ego. More about our values: morpho.org/jobs http://morpho.org/jobs.

ROLE

The mission of this role is to own the technical architecture and end-to-end delivery of Morpho's product suite, spanning React frontends, GraphQL APIs, and on-chain data systems, ensuring the platform scales reliably as Morpho grows beyond $10B in TVL, while actively raising the technical bar across the engineering team.

RESPONSIBILITIES

- Architect and own end-to-end delivery of DeFi products with billions in TVL, from React/Next.js frontends through GraphQL/REST APIs to blockchain data indexers, ensuring sub-second response times for users.

- Design and implement the API and SDK strategy enabling hundreds of integrators to build on Morpho's infrastructure, including versioning patterns, developer experience standards, and real-time streaming systems.

- Build and optimize high-performance data systems processing millions of on-chain events across 15+ blockchains, using intelligent caching and query optimization to maintain reliability at scale.

- Lead technical architecture reviews and establish coding standards that raise the technical capability of 5-10 engineers across product teams.

- Own observability and incident response across the stack, using OpenTelemetry, Grafana, and Sentry to ensure reliability for users and integrators.

WHAT SUCCESS LOOKS LIKE

FIRST 30 DAYS

Shipped a high-impact feature end-to-end that demonstrates competency across the full stack. Completed an architecture review of current systems and proposed a modernization roadmap. Built working relationships with key stakeholders across product, protocol, and business teams.

FIRST 4 MONTHS

Leading delivery of a major product initiative from scoping to production. Driving measurable improvements to API p95 latency through caching, query optimization, and architectural changes.

IN 1 YEAR

Owns technical architecture for an entire product vertical, with proven reliability and performance metrics. Recognized as the technical authority for fullstack architecture decisions across the organization.

MUST-HAVE EXPERIENCE & SKILLS

- 8-10+ years building fullstack applications at scale, with demonstrated impact on business metrics.

- Proven track record architecting high-availability systems handling millions of requests daily.

- Deep TypeScript expertise across client and server: React/Next.js, GraphQL (Apollo Server), Node.js, and typed contract interactions (viem).

- Hands-on experience building or maintaining on-chain data indexers (Ponder, Subsquid, or similar) and working knowledge of EVM event structures.

- Track record of leading technical initiatives across multiple teams without direct authority.

- Comfort operating in fast-changing, ambiguous environments without needing a defined playbook.

- Strong ownership mindset: you drive things to completion and don't wait to be asked.

- Clear, crisp async communication: you write well and can explain complex technical decisions simply.

- Team-first approach: you make the engineers around you better, not just the codebase.

- Humble.