Mlabs
Staff Full Stack Engineer
New York, New York, United States · Staff+ · Full-time
No sponsorship$200k-$250kDetected 9 hours ago
TypeScriptReactCSSTailwind CSSViteDistributed SystemsFull-Stack DevelopmentAI OrchestrationPlaywrightResearchAdaptability
About the role
- AI & Agent Infrastructure: Integrate practical AI workflows utilizing the Cloudflare Agents SDK, Workers AI, AI Gateway, Vectorize, structured outputs, tool calling, and evaluation-driven pipelines.
- Modern Engineering Workflows: 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.
- Deep Onchain & DeFi Knowledge: Solid technical and economic understanding of core Web3 primitives, including automated market makers (AMMs), decentralized exchanges/swaps, lending protocols, and perpetual futures.
Responsibilities
- Full Stack Feature Development: 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.
- Edge Infrastructure & Serverless Services: 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.
- Web3 Integration & Execution: Implement Web3 workflows using Viem/Wagmi, ZeroDev Kernel smart accounts, session-key permissions, SIWE/Privy authentication, and bundler/paymaster infrastructure across EVM environments.
- Backend & Workflow Orchestration: Design idempotent, replay-safe execution paths across distributed services using Hono, tRPC, Zod, and real-time event systems.
- Frontend Engineering: 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.
- Core Technical Fundamentals: Strong mastery of TypeScript and software engineering principles, with experience building robust, maintainable systems.
- Mindset: Adaptable, autonomous, and motivated by building meaningful financial tools at the technical frontier.
- Your data may be shared only with clients and trusted partners where necessary for recruitment purposes.
- $200K - $250K Our client is a well-funded Web3 financial technology company building next-generation onchain investment infrastructure.
- To support rapid growth, our client is seeking a Staff Full Stack Engineer to play a pivotal role in developing, scaling, and maintaining their core product suite.
Requirements
- Practical experience with distributed tracing, structured telemetry, and edge-native debugging.
- EVM Proficiency: Solid experience with EVM execution environments.
- Distributed Systems & Debugging: Practical experience with distributed tracing, structured telemetry, and edge-native debugging.
- If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion.
Nice to have
- Solid experience with EVM execution environments.
- Familiarity with Solana (SVM) or cross-chain messaging/execution frameworks is a strong plus.
Compensation
- $200k-$250k
Benefits
- 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.
- 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.
- Remote Work Stipends: Dedicated home office setup stipend plus monthly allowances covering Wi-Fi, mobile phone, and AI tool subscriptions.
Company info
- High-autonomy, fast-paced environment working on complex infrastructure problems alongside an experienced engineering team.
- Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates.
- We genuinely appreciate your interest and wish you the best in your job search.
- 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.
- You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.
- Commitment to Equality and Accessibility: At MLabs, we are committed to offer equal opportunities to all candidates.
This listing is sourced directly from Mlabs's careers page and normalized into a canonical job model.