Team Lead Backend Engineer (Node.js)

TL;DR

Team Lead Backend Engineer (Node.js): Architecting and scaling core API infrastructure for mission-critical workflows across sales, marketing, and customer success teams with an accent on delivering low-latency, high-availability APIs that expose deep buyer insights. Focus on owning massive data and API infrastructure, setting a high bar for engineering excellence, and shipping fast in a high-urgency environment.

Location: Fully in-person, 5 days/week at our San Francisco HQ

Salary: $200,000–$240,000 USD base pay annually

Company

hirify.global is an Applied AI company that automates sales, marketing, and customer success for B2B companies by building the most complete and accurate picture of the B2B buyer.

What you will do

• Lead the design and development of APIs that expose GTM data to internal and external users.
• Own end-to-end architecture for large-scale data access patterns, optimizing for performance, cost, and reliability.
• Collaborate closely with AI, data, and frontend teams to ensure seamless integrations and clean API contracts.
• Tackle complex problems like versioning, rate-limiting, auth, query complexity, and cache invalidation.
• Build internal tooling to improve engineering velocity and observability for backend systems.
• Mentor engineers and set the technical direction for the team.

Requirements

• Fully committed to working in-person 5 days/week at our SF HQ.
• 5+ years of backend engineering experience, ideally with exposure to high-scale systems.
• Deep experience with modern backend stacks including Node.js, ClickHouse, and AWS.
• Strong understanding of API design principles, query optimization, and distributed systems.
• Experience with large-scale data systems (TBs of data), managing performance, cost, and uptime at scale.
• Startup mindset – ability to move fast, figure things out, and comfortable owning ambiguity.

Culture & Benefits

• Work in an early-stage, high-urgency environment where speed and impact matter.
• Join a company with real traction, rapid growth, and meaningful backing (Y Combinator, $26M Series A).
• Opportunity to build something category-defining with a team committed to excellence.
• Be part of a team that is curious, self-aware, and feedback-driven.
• Competitive base pay with significant impact on outcome.