Senior Software Engineer, FullStack, QuickPack (Remote)

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'll collaborate with our product team, lead other engineers and contribute to create and maintain systems that enable our user’s most critical workflows through our web app.

• Lead the design and delivery of end-to-end solutions spanning APIs, services, databases, and modern UIs
• Drive execution on multi-quarter goals, often coordinating with and mentoring 2–3 engineers
• Build and maintain robust, well-tested code, ensuring features are delivered reliably to production
• Develop reusable components and patterns that improve product consistency and scalability across teams
• Lead architectural discussions and contribute to technical strategy
• Partner closely with product and design to shape requirements, balance innovation with technical trade-offs, and advocate for customer value
• Provide technical leadership in planning and review, ensuring clarity, feasibility, and alignment
• Champion QA and test automation to strengthen quality and operational excellence
• Design and implement telemetry, metrics, and tools to analyze user behavior, system health, and business impact
• Drive iterative improvements, ensuring continuous delivery of value and reduction of technical debt

• 7+ years of software development experience, with a strong track record of building and maintaining distributed systems
• Proficiency in JavaScript and TypeScript
• Deep experience with modern UI frameworks (React with hooks and context API) and libraries (Redux, Tanstack Query, MUI)
• Proficiency in server-side programming (Python, Go, Java, Ruby) and microservice frameworks (FastAPI, RESTful services)
• Strong knowledge of software design principles, OOP, and architectural patterns; ability to coach others on applying them
• Proficiency with cloud platforms (AWS, GCP, Azure) and containerization (Docker, Kubernetes).Expertise with integrating with APIs (REST, GraphQL, gRPC)
• Expertise with AWS/Cloud Services
• Demonstrated success leading technical projects end-to-end, including mentoring peers and unblocking others
• Skilled at debugging and optimizing full-stack applications for performance and scalability
• Strong cross-functional collaboration and communication skills; able to explain technical trade-offs to diverse audiences
• Passion for user-friendly, reliable applications with a focus on customer impact
• BS in Computer Science, Software Engineering, or related field (or equivalent experience).

• Experience in shipping or logistics
• Hands-on experience with DevOps tooling (Docker, Terraform, CircleCI, New Relic, PagerDuty)

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 [email protected]

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 Remote.com. What we want to emphasize is that you can be successful at Shippo regardless of location.