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Technical Product Engineer at Rockstar-3 | San Francisco

RockstarSan Francisco, California, United States
On-site Full-time

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Experience Level

Experience

Qualifications

Required:5+ years engineering experience in banking or fintech (non-negotiable)3+ years in product, business, operations, or hybrid rolesStrong understanding of distributed systems and APIsAbility to prototype and review AI-generated codePreferred:Founder or side-project experienceShipped developer-facing products or APIsLong-form writing experience (10,000+ word documents, specifications, essays)Obsession with precision in languageActively experimenting with AI tools to build softwareExperience at least one fast-growing Fintech or LegalTech startup

About the job

Join Rockstar, a groundbreaking AI-native fintech startup reshaping the financial landscape. Our client is developing a state-of-the-art banking platform designed to merge human intent with AI execution seamlessly. The team embraces an innovative async-first workflow that combines profound human expertise with advanced AI agents, allowing for the rapid deployment of real banking software.

The Role

As a Technical Product Engineer, you will utilize your background in fintech or banking product development to enhance your product-thinking skills and deliver at the speed of AI. This position transcends traditional product management; it is a Product Builder role where you will define product features, articulate them with exceptional clarity, and collaborate with AI agents to translate specifications into production-ready code. Your primary deliverables will be precise documentation and effective use of cutting-edge AI tools, achieving product development at five times the speed of conventional startups.

What You’ll Do

• Lead the product roadmap for banking and financial integrations.

• Design and prototype banking features such as payments, compliance, and user flows utilizing AI tools.

• Create high-fidelity specifications that can be executed by both humans and AI agents.

• Make real-time architectural decisions and review AI-generated code for accuracy.

• Collaborate with legal, compliance, and operations teams to meet regulatory standards.

• Favor written communication, utilizing memos and documentation over meetings.

Why Writing Is Essential:

In our workflow, language is a powerful tool. Clear specifications and AI prompts drive exponential speed and enhance product quality. Ambiguity can derail progress.

You’ll Flourish Here If You:

• Excel at refining language to capture every nuance.

• Take pleasure in detailing user experiences, edge cases, and systems meticulously.

• Advocate for documentation as the ultimate source of truth.

What We’re Seeking:

Required Qualifications:

• 5+ years of engineering experience within banking or fintech (a must).

• 3+ years in product, business, operations, or hybrid roles.

• Strong knowledge of distributed systems and APIs.

• Proficiency in prototyping and evaluating AI-generated code.

Preferred Qualifications:

• Experience as a founder or involvement in side projects.

• Proven track record of delivering developer-facing products or APIs.

• Extensive long-form writing experience (10,000+ words, specifications, essays).

• A passion for precision in language.

• Active experimentation with AI tools to develop software.

• Experience in a fast-growing Fintech or LegalTech startup.

How We Build (AI-Native Workflow):

1. Draft a detailed specification.

2. AI agents generate code, designs, and documentation.

3. Review a short demo video.

4. Approve → Automated pull requests and deployments are created.

You’ll Thrive Here If You:

• Prefer asynchronous communication and value writing over verbal discussions.

• Are a low-ego builder who prioritizes early shipping and rapid iteration.

About Rockstar

Rockstar is at the forefront of innovation in the fintech industry, leveraging AI to create a next-generation banking platform that redefines how financial services operate. Our unique async-first workflow empowers teams to merge human insight with advanced AI capabilities, resulting in rapid and high-quality software delivery.

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