Senior Backend Engineer
ReploSan FranciscoPosted 23 February 2026
Job Description
About the roleHiring a senior backend engineer to join our team and focus on system architecture our most popular products.Things you'll be working onArchitecting 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 stabilityBuild out durable/distributed cart/hosting for our ecommerce productDeploying a multi-tenant NextJS app for shops in CloudflareMentoring junior engineers on best-practicesLooking for someone whoCan be in office 3-4 days/week in San FranciscoHas deep knowledge in distributed systems and SOA — load balancers, databases, queuing, caching, HTTP, APIs, high-availability, fault tolerance, redundancy, at-least-two-of-everythingDown 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 ReploHas 4+ years of professional experience with production distributed systems, service oriented architectureProficient 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 toHas a product and customer-focused mindsetHas experience being burned by deployment and maintenance issues. If you have a a strong opinion on how backend systems should be built, that’s goodValues 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 pointsBonus points if youHave started a company beforeEnjoy attending hackathonsWorked at an early-stage (Series A or earlier) startup previouslyHave not wasted hours interview-prepping on LeetcodeHave an eye for visual design (or past experience in product design, Figma, etc)
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