Senior Full Stack Developer

About the job

The company is pioneering the future of asset tokenization by offering exposure to institutional-grade securities and structured products onchain - accessible global and -founded by former investment professional Dennis Dinkelmeyer and seasoned serial entrepreneur Fabrice Grinda aims to bridge the gap between traditional and decentralized finance. Since launching in October 2024 has grown to over $1b in total value locked (TVL) across its range of investment products reflecting strong market fit and demand. The company raised a $9m seed round from top-tier investors including BlockTower Framework Ventures and Coinbase Ventures and others now is looking for outstanding talents to scale and execute on its vision of a more open and efficient financial system.

Your Key Responsibilities

Early Engineering Ownership

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.

API & Service Layer Design

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.

Fullstack Development (TypeScript-first)

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.

Blockchain & Web3 Integration

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)

Security & Reliability

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.

Experience

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

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

Web3 / DeFi Expertise

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

Systems Thinking

Ability to design systems that handle:

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

Security Mindset

Deep understanding of application and infrastructure security including:

Secure API design
Secrets management
Attack surface reduction in Web3 contexts

Ownership & Autonomy

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

Communication & Collaboration

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

Timezone

Ability to overlap with EST / GMT working hours.