> Markdown version of [/jobs/ext/4150865-founding-engineer](https://www.wearedevelopers.com/jobs/ext/4150865-founding-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Founding Engineer - **Company:** Mlabs Ltd - **Location:** New York, NY, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Data Integrity, Data Security, Fraud Prevention and Detection, Blockchain, Software Engineering, Systems Architecture, Systems Integration, TypeScript, Backend, Api Design - **Published:** October 16, 2026 - **Apply:** https://www.careerjet.com/jobad/us96fdfcd213b46fcac930e48600c1465d ## About the Role * Experience: At least 5 years of professional software engineering experience. * Tech Stack: Strong, recent experience building and operating production systems with TypeScript and JavaScript. * Domain Expertise: Meaningful hands-on experience working within both fintech and crypto environments. * Startup Background: Proven experience in venture-backed companies (Seed to Series C), with a clear understanding of how engineering priorities shift during high-growth phases. * Engineering Fundamentals: Strong backend or full-stack engineering fundamentals, including API design, external integrations, and data modeling. * Ownership & Agency: A track record of owning complex technical products end-to-end, with high autonomy and comfort operating in low-process, fast-paced environments. * Security Mindset: Sound judgment regarding security, reliability, data integrity, and compliance. Preferred Qualifications * Experience with credit, lending, payments, banking, or treasury infrastructure. * Background in financial ledgers, reconciliation, or transaction-processing systems. * Familiarity with stablecoins, wallets, custody, on-chain payments, or blockchain infrastructure. * Exposure to risk, underwriting, fraud detection, identity, or compliance systems. * Previous experience helping build an engineering function, or hiring, mentoring, and leading engineers from an early startup stage. ## Description In this high-impact role, the Founding Engineer will take meaningful ownership of the technical direction and product delivery. Working hands-on across a TypeScript and JavaScript stack, the successful candidate will make foundational architecture decisions, establish engineering best practices, and ship production systems alongside the company's founders., Core System Architecture: Design, build, and operate core backend and full-stack systems using TypeScript and JavaScript. Product Execution: Take products from initial concept through architecture, implementation, and deployment into production. Infrastructure Integrations: Build secure integrations with financial, banking, payments, and crypto infrastructure. Data Security & Reliability: Develop and maintain systems that handle sensitive financial data, ledgers, and business-critical transactions. Engineering Standards: Establish software engineering standards, quality assurance, and best practices across the codebase. Strategic Collaboration: Work directly with company leadership to translate commercial and customer requirements into technical roadmaps and product features. Team & Roadmap Leadership: Help shape the long-term technical architecture and contribute to building the wider engineering team as the business scales.