TL;DR

Team Lead Backend Engineer (Data/API): Architect and scale core API infrastructure powering mission-critical workflows for Marketing, Sales, and Customer Success teams with an accent on large-scale data access, API performance, and reliability. Focus on designing and optimizing APIs, managing distributed systems, and leading engineering excellence in a high-urgency environment.

Location: In-person 5 days/week at San Francisco HQ

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

Company

Applied AI company automating sales, marketing, and customer success for B2B companies, processing over 60 TB of GTM data monthly with rapid growth and strong backing.

What you will do

Lead design and development of APIs exposing GTM data to internal and external users.
Own end-to-end architecture for large-scale data access, optimizing performance, cost, and reliability.
Collaborate with AI, data, and frontend teams for seamless integrations and clean API contracts.
Address complex challenges like versioning, rate-limiting, auth, query complexity, and cache invalidation.
Build internal tooling to improve engineering velocity and observability.
Drive engineering best practices, code quality, testing, and mentor engineers.

Requirements

Must work in-person 5 days/week at San Francisco HQ
5+ years backend engineering experience with high-scale systems.
Experience with Node.js, ClickHouse, AWS, API design, and distributed systems.
Proven ability managing large-scale data systems (TBs of data) focusing on performance, cost, and uptime.
Startup mindset with ownership and ability to handle ambiguity.

Culture & Benefits

Fast-paced, high-impact environment with rapid growth.
Opportunity to build category-defining products with strong team collaboration.
Equal Opportunity Employer committed to diversity and inclusion.