Senior Backend Engineer

About The Role

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

• 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 with > 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

• 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
• Is willing 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 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

• 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)

Mid‑Senior level

Full‑time

Engineering and Information Technology