Senior Software Engineer, Backend, QuickPack

Here at Shippo, we are the shipping layer of the internet and we consider ourselves to be one of the core building blocks of e-commerce.Our mission is to make merchants successful through world class shipping. With our products and solutions, we level the playing field by providing our customers with best-in-class solutions that otherwise wouldn't be available to them. Through Shippo, e-commerce businesses, marketplaces, and platforms are able to connect to shipping carriers around the world from one API and dashboard. We provide our customers with the most competitive shipping rates, print labels, automated international documents, shipment tracking, facilitate the returns process and more.

We are looking for a Senior Software Engineer to join our App team In this role you will work closely with our front-end developers and lead other engineers and contribute to end to end delivery of next generation back-end systems to support our grown business and new products.

Shipping & Handling responsibilities:

• Lead the design, implementation, testing, and deployment of backend services with high SLAs, capable of handling millions of requests daily
• Drive scalability and maintainability through microservices, decoupled architectures, queuing, and containerized deployments
• Own and evolve CI/CD pipelines to ensure smooth, automated, and reliable releases
• Monitor, debug, and optimize backend systems for responsiveness, throughput, and cost efficiency
• Design and maintain database schemas for large-scale, performant services
• Refactor and architect systems for long-term performance, security, reliability, and reuse
• Lead peer design and code reviews; mentor others in testing, design patterns, and architectural best practices
• Collaborate with product, design, and business teams to shape requirements and ensure alignment with customer value
• Champion QA automation and operational excellence, ensuring systems scale vertically and horizontally
• Lead on-call rotations, driving not only incident resolution but also long-term improvements to system resilience
• Provide early technical input on new product ideas, helping translate them into scalable, maintainable designs

Requirements

• 6+ years of backend software development experience with a proven record of leading technical projects
• Demonstrated success designing and delivering scalable APIs, services, and distributed systems
• Proficiency in server-side languages (Go, Python, Java, Ruby) and database languages (SQL)
• Strong experience with server-side frameworks (Django, .NET, Spring, Rails, Phoenix)
• Proficiency with NoSQL technologies (DynamoDB) and event-driven cloud architectures (queues, serverless compute, data streaming)
• Deep understanding of OOP, design patterns, and architectural best practices; ability to guide others in applying them
• Proficiency with cloud platforms (AWS, GCP, Azure) and containerization (Docker, Kubernetes).Advanced expertise in building APIs (REST, GraphQL, gRPC)
• Expertise with AWS/Cloud Services
• Strong leadership in debugging, performance optimization, and system scalability
• Exceptional communication skills; able to align engineers, cross-functional peers, and stakeholders
• Customer-centric mindset with the ability to balance technical trade-offs against business impact
• BS in Computer Science or related field (or equivalent experience)

Bonus

• Experience in shipping or logistics
• Hands-on with DevOps tooling (Docker, Terraform, CircleCI, New Relic, PagerDuty)
• Integrating with devices and device management (QR, Barcode, Third-Party print solutions)

Sail
through the process:

Here at Shippo, we celebrate inclusivity and are committed to creating equal access to opportunities for people from all backgrounds, perspectives and geographies. These values define who we are and everything we do. All qualified individuals are encouraged to apply. If you need assistance, or a reasonable accommodation during the application and recruiting process, please contact us at

Shippos
in the wild:

Our people, much like the packages we help ship, are all over the world. This means, through our remote-first program, "Shippos Everywhere", our roles can be based anywhere in the US with the exception of Delaware, Nevada, Ohio, Oregon, Hawaii, New Mexico and West Virginia and many roles can be based internationally.

For locations outside of the US and Ireland, the employment contracts are powered by What we want to emphasize is that you can be successful at Shippo regardless of location.