About Leucine

Leucine is a Series A–funded SaaS company building AI-powered solutions for the life sciences industry. Our platform helps global pharma companies digitize compliance, streamline operations, and accelerate drug manufacturing. We work with Fortune 500 customers in a fast-growing, regulated environment.

Role Overview

We are looking for a driven Full Stack Software Engineer Intern for a 4-month internship. You will work on real product features, contribute to live deployments, and collaborate with product and engineering teams to ship impactful solutions.
This is a hands-on role with real ownership.

What You’ll Work On

• Build and enhance frontend features using React JS
• Develop and integrate backend APIs
• Work with PostgreSQL to design, query, and optimize databases
• Implement responsive and user-friendly UI components
• Participate in code reviews and sprint planning
• Debug and resolve issues across the stack
• Write clean, maintainable, and well-documented code

Tech Stack

• Frontend: React JS
• Backend: Node.js / APIs
• Database: PostgreSQL

Who You Are

• Pursuing or recently completed a degree in Computer Science / Engineering
• Strong understanding of JavaScript and React fundamentals
• Good knowledge of SQL and database concepts (PostgreSQL preferred)
• Familiarity with REST APIs
• Comfortable in a fast-paced startup environment
• Strong problem-solving and debugging skills
• Strong intent to adapt to the rapidly transforming nature of LLM-driven development

What You’ll Gain

• Hands-on experience building features in a production SaaS product
• Exposure to enterprise-grade architecture
• Mentorship from experienced engineers
• Potential full-time opportunity based on performance