Demo

Senior Backend Engineer

Replo
San Francisco, CA Full Time
POSTED ON 11/9/2025
AVAILABLE BEFORE 12/9/2025
About The Role

Hiring a senior backend engineer to join our team and focus on system architecture our most popular products.

Things you'll be working on

Architecting and implementing backend systems in Typescript/Node is the core of what you’ll be doing. Real examples include —

  • Designing and building an ingestion pipeline for our analytics/insights products (> 99.99% uptime on Kafka, Clickhouse, Redis)
  • Spiking on our CI/CD to improve stability
  • Build out durable/distributed cart/hosting for our ecommerce product
  • Deploying a multi-tenant NextJS app for shops in Cloudflare
  • Mentoring junior engineers on best-practices

Looking For Someone Who

  • Can be in office 3-4 days/week in San Francisco
  • Has deep knowledge in distributed systems and SOA — load balancers, databases, queuing, caching, HTTP, APIs, high-availability, fault tolerance, redundancy, at-least-two-of-everything
  • Down to do full-stack work (including frontend even if it's not your main role)
  • Is ALWAYS SHIPPING. We don't spend weeks planning features at Replo
  • Has 4 years of professional experience with production distributed systems, service oriented architecture
  • Proficient in Typescript. If you have experience writing these systems in Python/Go/Java that’s cool too, as long as you’re willing to learn Typescript/Node — the learning curve on writing TS isn’t that high for high-caliber engineers. Experience or working knowledge of React is great too, but we can teach you that if we need to
  • Has a product and customer-focused mindset
  • Has experience being burned by deployment and maintenance issues. If you have a a strong opinion on how backend systems should be built, that’s good
  • Values writing clean, maintainable software, including documentation (e.g. the code needs to be correct and run fast, but we’re the ones that have to read it and understand it)
  • Is comfortable with ambiguity and defining software architecture patterns to solve customer pain points

Bonus points if you

  • Have started a company before
  • Enjoy attending hackathons
  • Worked at an early-stage (Series A or earlier) startup previously
  • Have not wasted hours interview-prepping on Leetcode
  • Have an eye for visual design (or past experience in product design, Figma, etc)

Salary.com Estimation for Senior Backend Engineer in San Francisco, CA
$136,264 to $168,103
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