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Leucine is an AI-powered SaaS platform transforming pharmaceutical manufacturing by digitizing and automating processes that have historically relied on paper, Excel, and manual workflows. The company helps pharma manufacturers ensure regulatory compliance, prevent cross-contamination, and maintain traceability through intelligent cleaning validation and equipment monitoring solutions. With Series A funding, 60+ pharma enterprises in production, and backing from top-tier global investors, Leucine is defining a new category in regulated manufacturing software.
As a Full-Stack Software Engineer, you will own features end-to-end across the platform's modern TypeScript stack. Your responsibilities include designing and optimizing Postgres database schemas, building Node.js/Express APIs, and developing React user interfaces. You'll work on core modules including master data management, assessments, calculations, and reporting—each feature built with accuracy, traceability, and regulatory compliance as first-class concerns.
You'll translate product requirements into clean, scalable, maintainable code while writing unit and integration tests as a standard part of your development process. The role emphasizes ownership: you'll take full responsibility for features from conception through deployment, working alongside engineers who value thoughtful code reviews and comprehensive testing practices.
The ideal candidate has 2–3 years of full-stack web development experience with strong JavaScript/TypeScript skills, solid Node.js/Express backend experience, and deep SQL knowledge (PostgreSQL preferred). React or equivalent modern frontend framework experience is required. A genuine testing habit and ability to optimize queries, design schemas, and work with indexes are essential. Experience in regulated domains (pharma, finance, healthcare, government) is a plus but not required. The team is open to candidates from .NET or Java backgrounds, as core concepts transfer well and onboarding support is provided.
