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Lead Software Engineer - Backend

San Mateo, CA, us💼 Full-time💰 $168,300–$168,300🗓 2026-05-12 → 2026-09-26

Core

Architect and build scalable backend services handling millions of transactions, leading modules end-to-end with a focus on performance, stability, and code quality.

Role type

Lead Backend Engineer (Ruby on Rails)

Builds

Scalable backend services, APIs, and distributed systems for global customer experience (CX) and employee experience (EX) products.

Domain

SaaS / Customer Experience (CX) / Employee Experience (EX)

Deliverable

production ML models | product features | infrastructure

Required skills

Ruby on Rails, System Design (HLD/LLD), Data Structures & Algorithms, Object-Oriented Design (OOD), REST APIs, RDBMS, Caching strategies, Distributed queues, Microservices, AI tools

Preferred skills

Mentoring engineers, Cross-functional collaboration, Agile methodologies

Technologies

Ruby on Rails, REST APIs, RDBMS, Microservices, Distributed queues

Responsibilities

Architect and build scalable backend services; Own the full development lifecycle from design to deployment; Write clean, modular, and testable code; Ensure systems are tuned for high availability and observability; Lead code reviews and mentor 2–3 engineers; Troubleshoot performance bottlenecks in production; Influence platform direction through architectural reviews.

Seniority

Senior, hands-on IC with leadership responsibilities

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