Founded in 2012, EasyPost is a YC unicorn whose mission is to make shipping simple for businesses, from garage startups to the Fortune 500. Shipping, now more than ever, is the backbone of the global economy, but integrating the technology-enabled operations of a modern business with the low-tech and complex shipping industry has always been a challenge. EasyPost solves this problem with the first developer-friendly REST API for shipping, and we continue to push boundaries and discover new ways to simplify shipping for all. Our team is rapidly growing, and this is the perfect time to get on board. Join us, and help build the shipping infrastructure of the future.

ABOUT THE ROLE:

We’re looking for a Senior Software Engineer to help modernize the technology behind USPS shipping. You’ll join the small, high-trust team that owns EasyPost’s most critical, highest-traffic platform - the USPS PC Postage system - and play a key role in our journey to the cloud. Your Go expertise will help refactor legacy services, design cloud-native solutions, and deliver the low-latency, high-throughput systems our customers count on every day. If you thrive on solving complex engineering challenges and want to shape a platform that handles massive scale and real-world impact, this is the role for you.

WHAT YOU WILL DO:

The essential functions include, but are not limited to the following:
o Build the future - design, code, test, and optimize high-performance Go services that power USPS shipping for millions of users.
o Drive the migration - help refactor legacy systems for the cloud, then design new cloud-native services that take full advantage of Azure, Kubernetes, Kafka, and more.
o Collaborate and influence - work hand-in-hand with product managers and other engineers to translate big ideas into rock-solid architecture.
o Raise the bar - participate in peer reviews, mentor teammates, and bring modern Go best practices (gRPC, microservices patterns, performance tuning) into the codebase.
o Solve real problems - troubleshoot production issues in high-throughput, low-latency environments without downtime.
o Document for the future - create clear technical docs so the next engineer can pick up right where you left off.
o Continuously improve - bring fresh ideas from the industry to improve speed, scalability, reliability, and developer experience.
o Test like you mean it - build and run automated unit, integration, and performance tests to ensure we ship with confidence.
o Work smart with tools - use Git and other version control systems to manage complex, distributed workflows.