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About the Role

Our client is a well-funded Web3 financial technology company building next-generation onchain investment infrastructure. They are seeking a Staff Full Stack Engineer to play a pivotal role in developing, scaling, and maintaining their core product suite. This position requires an engineer who excels in building end-to-end features, working across modern edge-native architectures, and operating across the full crypto and DeFi stack in a high-velocity, low-bureaucracy environment.

Responsibilities

Architect and deliver end-to-end features across a modern TypeScript monorepo (Bun, Turborepo) with an emphasis on type-safe boundaries, domain-driven design, and system correctness for financial workloads.
Build and manage stateful, event-driven systems utilizing the Cloudflare platform (Workers, Workflows, Durable Objects, Queues, R2, D1, KV, Pipelines, and scheduled triggers) using Wrangler and Alchemy.
Implement Web3 workflows using Viem/Wagmi, ZeroDev Kernel smart accounts, session-key permissions, SIWE/Privy authentication, and bundler/paymaster infrastructure across EVM environments.
Design idempotent, replay-safe execution paths across distributed services using Hono, tRPC, Zod, and real-time event systems.
Develop responsive, accessible, and high-performance interfaces using React, Vite, TanStack Router/Query/DB, and Tailwind CSS with polished motion and real-time state updates.
Integrate practical AI workflows utilizing the Cloudflare Agents SDK, Workers AI, AI Gateway, Vectorize, structured outputs, tool calling, and evaluation-driven pipelines.
Leverage AI-assisted coding tools (e.g., Codex, Claude Code) for rapid research, testing, and implementation while maintaining strict ownership of architecture, security, and code quality.
Maintain high test coverage using Vitest, Playwright, and workerd-based integration tests while monitoring system health via structured logs, correlation IDs, Sentry, and Cloudflare observability.

Requirements

Strong mastery of TypeScript and software engineering principles, with experience building robust, maintainable systems.
Solid technical and economic understanding of core Web3 primitives, including automated market makers (AMMs), decentralized exchanges/swaps, lending protocols, and perpetual futures.
Meaningful technical depth in at least one key area of the stack (Cloudflare edge infrastructure, EVM/smart contracts, complex React frontends, or distributed backends) with a demonstrated ability to learn new technologies quickly.
Solid experience with EVM execution environments.
Practical experience with distributed tracing, structured telemetry, and edge-native debugging.
Adaptable, autonomous, and motivated by building meaningful financial tools at the technical frontier.

Skills

TypeScript
Bun
Turborepo
Cloudflare Workers
Cloudflare Workflows
Cloudflare Durable Objects
Cloudflare Queues
Cloudflare R2
Cloudflare D1
Cloudflare KV
Cloudflare Pipelines
Cloudflare scheduled triggers
Wrangler
Alchemy
Viem
Wagmi
ZeroDev Kernel
SIWE
Privy
Hono
tRPC
Zod
React
Vite
TanStack Router
TanStack Query
TanStack DB
Tailwind CSS
Cloudflare Agents SDK
Cloudflare Workers AI
Cloudflare AI Gateway
Cloudflare Vectorize
Codex
Claude Code
Vitest
Playwright
workerd
Sentry
EVM
Solana (SVM)
cross-chain messaging/execution frameworks

Location

New York, United States

Work Type

Hybrid
Full-time

Experience Level

Staff

Salary/Compensations

$200K - $250K

Benefits

Attractive salary paired with early equity and token warrant allocations.
100% employer-covered medical, dental, and vision insurance.
Dedicated home office setup stipend plus monthly allowances covering Wi-Fi, mobile phone, and AI tool subscriptions.
Unlimited Paid Time Off (PTO) policy.

About the Company

Our client is a well-funded Web3 financial technology company building next-generation onchain investment infrastructure.
Backed by premier venture capital firms and leading digital asset institutions, the organization focuses on long-term portfolio management, automated rebalancing, and intuitive user experiences that bring the safeguards and discipline of traditional finance to decentralized technology.
The platform abstracts away the underlying friction of DeFi to make real-world assets (RWAs), onchain stocks, and fixed-income products seamless and accessible to a global audience.
High-autonomy, fast-paced environment working on complex infrastructure problems alongside an experienced engineering team.

Equal Opportunity

At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.
MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.