Product Engineering Intern
Spendline
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.

