Software Engineer Intern
2 days ago
Location:
650 California Street, 7th Floor, San Francisco, CA
Type:
Internship (On Site)
Duration:
6 months
Compensation:
Stipend + potential for full-time conversion + equity
About Marketrix
Marketrix is building the next evolution of intelligent software — AI agents that
simulate, learn, and operate software like humans do
. Our vision is bold:
AGI through simulation.
We're a startup based in San Francisco, developing agentic systems that can explore products, understand them, and autonomously provide onboarding, support, and optimization.
The Role
We're looking for a passionate
Software Engineer Intern
to join our founding team in person at our San Francisco office. You'll work directly with the co-founders on core product engineering — from developing simulation engines and AI integrations to refining the user experience for our customers.
What You'll Do
- Contribute to building Marketrix's simulation engine and agentic workflows
- Work on web automation, AI/ML integrations, and front-end intelligence
- Collaborate with the co-founders to prototype new features and deploy live builds
- Write clean, scalable, and well-documented code
- Participate in daily discussions around product strategy, performance, and UX
- Assist in real-world PoCs with enterprise clients
What We're Looking For
- Strong foundation in
JavaScript, TypeScript, or Python - Experience with
React
,
, or similar modern frameworks - Familiarity with
LLMs, APIs
, or
web automation tools (e.g., Puppeteer, Playwright)
is a plus - Excellent problem-solving and debugging skills
- Excited about AI, simulations, and building futuristic products
- Must be available to work
in person
at our SF office
Why Join Us
- Work directly with founders building cutting-edge agentic AI
- Get exposure to product engineering, research, and early-stage startup execution
- Opportunity for full-time conversion after internship
- Build something the world hasn't seen before — and have fun doing it
To Apply:
Send your GitHub, LinkedIn, and a short note about a project you're proud of to
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