Senior Full Stack Developer

Operate as a core contributor in a lean, high-signal team, shaping system design, security posture, and engineering standards from first principles.

Distributed System & Backend Architecture

Design and maintain high-throughput, fault-tolerant backend systems handling onchain/offchain data flows (indexers, event processors, transaction pipelines).

Strong focus on idempotency, consistency, and observability.

Build and evolve typed, versioned APIs (REST/GraphQL) with clear contracts, enabling reliable integrations across internal services and external partners.

Emphasis on performance, caching strategies, and rate limiting.

Develop end-to-end features using NestJS (backend) and React (frontend) within a monorepo architecture (Nx/Yarn workspaces).

Maintain strong typing, modularity, and DX standards.

Integrate with EVM networks using libraries such as viem / wagmi / ethers, handling:

Smart contract interactions (reads/writes)
Transaction lifecycle management (simulation, signing, submission, monitoring)
Wallet connectivity (EOA + smart wallets / MPC / Safe)

Apply security best practices across the stack:

Auth (OAuth, JWT, API keys)
Infra security (WAF, rate limiting, isolation)
Smart contract interaction safety (simulation, validation)

Contribute to a security-first culture with strong review processes.

CI/CD & Developer Experience

Maintain fast iteration cycles with automated testing, GitHub Actions, and continuous deployment.
Optimize for high deployment frequency with minimal risk.

6+ years of experience building production-grade systems, with strong expertise in:

TypeScript / Node.js (NestJS preferred)
React (or similar modern frontend frameworks)
PostgreSQL (query optimization, indexing, migrations)

Strong understanding of:

EVM architecture and transaction lifecycle
DeFi primitives (AMMs, vaults, yield strategies)
Smart contract interaction patterns

Bonus: experience with Solidity, Foundry/Hardhat, or auditing

Ability to design systems that handle:

High data throughput (onchain events, logs)
Distributed components
Failure scenarios (RPC issues, reorgs, partial failures)

Deep understanding of application and infrastructure security, including:

Secure API design
Secrets management
Attack surface reduction in Web3 contexts

Comfortable operating in a low-process, high-ownership environment, making pragmatic trade-offs and driving projects end-to-end.

Strong ability to work asynchronously in a remote-first, globally distributed team, with clear written and verbal communication.

Ability to overlap with EST / GMT working hours.