Technical Product Engineer
About The Position
Rockstar is recruiting for a pioneering, AI-native fintech startup. Our client is building a next-generation banking platform from the ground up, designed for a world where human intent and AI execution converge. The team operates with a unique, async-first workflow that blends deep human expertise with AI agents to ship real banking software at extraordinary speed. The Role You have built fintech or banking products as an engineer. You have stepped into product thinking. Now you want to do both—at AI speed. This is not traditional product management; this is a Product Builder role. The candidate will define what to build, describe it with extreme precision, and work alongside AI agents that turn specifications into production code. The primary output is not meetings or Jira tickets; it is clear, rigorous documentation and use of the latest AI tools that becomes the product at 5x the speed of other startups. Why Writing Is the Core Skill: In this workflow, language is leverage. Clear specifications and AI prompts unlock exponential speed and build quality. Ambiguity kills it. You'll Thrive here If you: Rewrite sentences until they perfectly capture nuance Enjoy describing user experience, edge cases, and systems in painful detail Believe documentation should be the source of truth
Requirements
- 5+ years engineering experience in banking or fintech (non-negotiable)
- 3+ years in product, business, operations, or hybrid roles
- Strong understanding of distributed systems and APIs
- Ability to prototype and review AI-generated code
Nice To Haves
- Founder or side-project experience
- Shipped developer-facing products or APIs
- Long-form writing experience (10,000+ word documents, specifications, essays)
- Obsession with precision in language
- Actively experimenting with AI tools to build software
- Experience at least one fast-growing Fintech or LegalTech startup
Responsibilities
- Own product roadmap for banking and financial integrations
- Design and prototype banking features (payments, compliance, flows) using AI tools
- Write high-fidelity specifications that humans and AI agents execute
- Make real-time architectural decisions and validate AI-generated code
- Partner with legal, compliance, and operations teams on regulatory requirements
- Communicate primarily through memos and documentation, not meetings
Benefits
- Competitive salary + meaningful equity
- Profit sharing tied to AI workflows that save resources
- Fully remote, async-first environment
- Time flexibility (including fractional work options)
- Culture of low ego, high trust, fast shipping
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
