Product Engineering Intern

About Spendline

Spendline is an AI infrastructure startup building financial controls for companies running AI in production. We help businesses track AI spending, understand customer profitability and enforce budgets in real time.

The Role

We're looking for a technically strong, entrepreneurial builder who can think independently, take initiative and ship real software.

You'll work directly with the founders on product development, engineering and bringing our first customers into production.

What You'll Do

• Build full-stack features using Node.js, TypeScript, React and PostgreSQL.
• Use Claude Code, Cursor and other AI tools to accelerate development.
• Work on LLM APIs, AI agents, integrations and infrastructure.
• Own features end-to-end, from idea to deployment.
• Proactively identify problems, challenge assumptions and suggest improvements.

What We're Looking For

• Strong JavaScript/TypeScript fundamentals and experience building working applications.
• Proficiency with AI-assisted development tools.
• Independent projects, ideally something you've shipped to real users.
• Strong problem-solving skills, ownership and entrepreneurial curiosity.
• Bonus: Startup experience, MCP, cloud infrastructure or AI automation.

We value initiative and demonstrated ability over degrees, grades or years of experience.

How to Apply

Send your resume, GitHub and one project you're proud of.

Briefly explain what you built, what you personally owned and a problem you solved without being asked.

Potential full-time opportunity based on performance.