Apollo.io

Senior Software Engineer, Fullstack (Builder Studio)

Apollo.io
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2 hours ago
Remote, CanadaSenior

Responsibilities

  • Build the chat-driven builder experience, live preview, canvas, publishing, and sharing flows.
  • Design how agents translate natural-language goals into pages, databases, workflows, and safe follow-up edits.
  • Build the generated-app runtime and workflow layer, including triggers, scheduled jobs, retries, logging, and deterministic versus agentic steps.
  • Own delegated identity, permissions, secrets, sandboxing, and isolation for generated applications.
  • Expand integrations across Apollo data and external systems such as Google Sheets, Google Drive, CRMs, and MCP-based connectors.
  • Improve the UI relationships among pages, data, workflows, and agents so customers can understand and trust their applications.
  • Work with design partners and customers to turn feedback into shipped product improvements.
  • Set engineering patterns and own testing, evaluations, reliability, performance, and cost for a fast-moving 0-to-1 product.

Requirements

  • 5+ years building and shipping production software.
  • Strong TypeScript and React skills, including complex stateful interfaces such as editors, canvases, builders, or collaborative surfaces.
  • Backend and API design experience, ideally with event-driven or workflow systems involving retries, idempotency, and observability.
  • Production experience with LLMs, including agent loops, tool calling, context management, code generation, or evaluations.
  • Experience making security decisions for systems running untrusted or generated code, including sandboxing, delegated authentication, scoped tokens, and secrets handling.
  • Experience taking an ambiguous 0-to-1 product from prototype to a dependable customer product.
  • Product judgment and empathy for non-technical users.
  • Current fluency with AI-assisted development and a strong quality and ownership mindset.
  • Preferred experience with low-code, no-code, AI app-builder products, or developer tools.
  • Preferred experience with Cloudflare Workers, Durable Objects, Ruby on Rails at scale, GTM or marketing technology, or RevOps teams.

Benefits

  • Equity and company bonus may be included.
  • Paid holidays, flexible PTO, parental leave, employee assistance, wellbeing benefits, global travel coverage, life and disability insurance, and extended health, dental, and vision benefits may be included.
Apollo.io

About Apollo.io

501-1,000 employees

Apollo.io builds a go-to-market platform that pairs a large B2B contact database with sales engagement, enrichment, and sequencing tools for revenue teams. Offered as a SaaS subscription, it serves sales and marketing organizations that need prospect data and outbound automation; the company is privately held, founded in 2015, headquartered in San Francisco, and raised a Series D funding round in 2023.

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