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Open nowPosted 220 days ago

Technical Product Engineer

Workable (global search)108,016 open roles

Where
San Francisco, CA, United States
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Your applicationOpen nowTechnical Product EngineerWorkable (global search) · San Francisco, CA, United States

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The clock on this job

Early applications get read.

7.9% of postings close within 7 days. Measured by our own scanner across the market. Workable (global search) postings stay open a median of 7 days.

Share of postings closed within
  1. 1.6%1 day
  2. 3.6%3 days
  3. 7.9%7 days
  4. 14.9%14 days
  5. 34.0%30 days
This job: posted 220 days ago

Workable (global search) median: 7 days open

The posting

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.

What You’ll Do

• 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

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

What We’re Looking For:

Required

• 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

Preferred

• 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

How We Build (AI-Native Workflow)

1. Write a detailed specification

2. AI agents generate code, designs, and documentation

3. Review a short demo video

4. Approve → Pull requests and deploys are created automatically

You'll Thrive Here

• Async-first thinkers who prefer writing over talking

• Low-ego builders who ship early and iterate fast

• Self-directed operators who do not need hand-holding

• Contrarians who believe meetings are usually a bug

This Role Is NOT for You If You…

• Prefer calls over writing

• Need heavy external structure or daily check-ins

• Want rigid role boundaries (“just PM” or “just engineer”)

• Are skeptical of AI-driven development

• Do your best work only in offices

What We Offer

• 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

Interview Process (Async-Friendly)

1. Application + written questions

2. Spec-writing exercise (used to generate real AI output)

3. Technical and product deep dive

4. Language & AI assessment

5. Culture and team conversations

Before You Apply Ask yourself:

• Does AI-driven product building excite me?

• Do I enjoy writing more than meetings?

• Am I comfortable being “ruined for the ordinary”?

If yes, we’d love to meet you.

About the Client

The client is building an AI-native banking platform—designed from the ground up for a world where humans write intent and AI builds execution. The teams are a mix of humans and AI agents, operating async, moving fast, and shipping real banking software today (not theory). If you believe clarity of thinking matters more than lines of code, you will feel at home here.

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