2 months ago
Base Salary
$201k - $251k/yr
Responsibilities
- Design and ship Command skills for financial workflows such as sending money, managing invoices, and understanding cash flow.
- Design and build reliable, explainable, and safe multi-step agentic workflows.
- Define tool schemas and data contracts with backend teams.
- Own capabilities end to end from system prompts through frontend response components.
- Maintain and evolve prompt architecture, skill loading, session context, policy, and compliance layers.
- Tune model behavior, prompt caching, fallback chains, and streaming patterns.
- Build and expand the evaluation harness, including test cases and scoring rubrics.
- Partner with product and compliance teams to define correctness criteria and tests.
- Own reliability and quality from initial design through post-launch monitoring.
- Mentor engineers and raise the technical bar of the team.
Requirements
- 7 or more years of software engineering experience.
- Deep technical expertise building and scaling LLM-powered applications in production.
- Experience scaling an LLM-powered product and addressing reliability and performance issues in real usage.
- Experience designing agentic systems and multi-step workflows.
- Experience building evaluation infrastructure and meaningful product-quality test cases.
- Understanding of LLM deployment tradeoffs including latency, cost, compliance, and production failure modes.
- Strong opinions about trustworthy AI products and the ability to build toward that standard.
- Comfort with TypeScript and willingness to learn Haskell, or proficiency with both.
- Ability to work across the full stack of an AI product, from system prompts to streaming frontend experiences.
- Track record of mentoring engineers and raising team technical standards.
Benefits
- Total rewards include base salary, equity through stock options or RSUs, and benefits.
- The role is open to US employees in any location and Canadian employees in any location.
- Mercury is committed to diversity, belonging, equal employment opportunity, and reasonable accommodations.
Tech Stack
HaskellTypeScript
Categories
About Mercury
Mercury builds a fintech platform for startups and growing businesses to run banking and financial workflows, including business accounts, payments, corporate and debit cards, bill pay, and treasury. It is a non-bank company with banking services provided by partner banks (Choice Financial Group and Column N.A.) and earns revenue from interchange and financial services fees. Founded in 2017 and headquartered in San Francisco, it is privately held.