EarnIn

Senior AI Builder

EarnIn
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19 hours ago
Mountain View, CA, USASenior
H1B sponsor

Base Salary

$228k - $279k/yr

Responsibilities

  • Design production agent architectures, including prompts, reasoning chains, tool calls, MCP servers, agent scaffolding, context harnesses, and reusable skills infrastructure.
  • Build agentic workflows that improve the product development lifecycle across scoping, design, review, testing, deployment, and monitoring.
  • Create evaluation pipelines, benchmarks, eval harnesses, quality gates, and metrics for AI-assisted workflows.
  • Develop reusable libraries, templates, and reference implementations that help engineering teams integrate and ship AI features.
  • Partner with architects, domain leads, and product engineers to establish effective AI tooling, patterns, guardrails, and developer experiences.
  • Make AI pilot quality, safety, generation-to-merge, and review-latency metrics visible and trustworthy across engineering teams.

Requirements

  • 4+ years of full-time software engineering experience, including at least 2 years building tooling, platforms, or internal developer products.
  • Bachelor’s, Master’s, or PhD in Computer Science, Computer Engineering, or a related technical discipline, or equivalent industry experience.
  • Hands-on experience with LLM integration patterns such as prompt engineering, RAG pipelines, tool or function calling, and agent architectures.
  • Proficiency working across the software stack as needed.
  • Experience with MCP, LangChain, or comparable orchestration frameworks.
  • Experience with open source LLM models.
  • A track record of building developer tools or products that other engineers actively use.
  • Preferred experience with reinforcement learning, including RLHF, RLAIF, or reward modeling in applied product contexts.
  • Preferred experience in fintech or regulated or security-sensitive environments.
  • Preferred hands-on experience with AI governance, including bias evaluation, audit logging, and model cards.
  • Preferred exposure to multi-step reasoning pipelines or human-in-the-loop system design.

Benefits

  • Hybrid position based in Mountain View with in-office work required 2 days per week.
  • Full-time position with equity and benefits.
  • EarnIn supports a diverse and inclusive workplace.

Categories

EarnIn

About EarnIn

501-1,000 employees

EarnIn builds a mobile app for earned wage access and related financial tools for U.S. workers living paycheck to paycheck. It lets users access a portion of accrued wages before payday, plus features like credit monitoring, automated savings, low-balance alerts, and a debit card, with no mandatory fees or interest. Founded in 2012 and headquartered in Mountain View, California, the privately held company issues certain banking products via Evolve Bank & Trust.

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