Software Engineer III, Full Stack, Web App

Summary

Join Shippo, the shipping layer of the internet, and become a Full Stack Engineer. You will collaborate with the product team and engineers to build and maintain systems for critical user workflows within our web application. Your work will directly impact how customers experience our brand by modifying backend systems, delivering high-performance features, and contributing to reusable component systems. You will transform complex requirements into elegant features, implement end-to-end solutions, and contribute to architectural discussions. You will also support QA initiatives, build tools to analyze user behavior, and implement tools for understanding technical and business impact. This role requires 6+ years of software development experience and a strong foundation in building scalable, distributed systems.

Requirements

• 6+ years of experience in software development, with a strong foundation in building and maintaining scalable, distributed systems across both front-end and back-end
• Experience working across both backend and frontend development, including APIs, services, databases, and modern UI frameworks
• Proficiency in server-side programming (e.g., Go, Python, Java, Ruby) and SQL databases
• Familiarity with frontend technologies and frameworks (e.g., React, Vue.js , Angular)
• Solid understanding of software development principles, object-oriented programming, and design patterns
• Ability to debug and optimize full-stack applications for performance and scalability
• Passion for building user-friendly and reliable applications
• Strong collaboration skills, with the ability to work effectively with cross-functional teams
• Clear communication skills, with the ability to explain technical concepts to different audiences
• A mindset of continuous learning, craftsmanship, and team success
• BSc in Computer Science, Software Engineering, or a related STEM field (or equivalent experience)

Responsibilities

• Modify our backend systems to enable new features and improve system reliability and scalability
• Deliver high-performance, observable features that create exceptional user experiences
• Contribute to well-abstracted, reusable component systems that ensure consistency and quality
• Transform complex requirements into elegant and performant features and products
• Implement end-to-end solutions for new pages, features, and experiences
• Develop and lead execution against both short-term and long-term roadmaps
• Contribute to reusable components that enhance product consistency
• Deliver robust, thoroughly tested code while taking full accountability for features from inception to production
• Contribute to architectural discussions and technical breakdowns that drive the product’s scalability
• Partner with product and design to balance innovation with engineering best practices
• Provide technical insights during planning and review discussions to streamline implementation
• Support QA initiatives to strengthen test automation
• Contribute to tools that accurately model and analyze user behavior
• Build and execute an iterative roadmap for continuous improvements
• Implement tools and telemetry to better understand technical and business impact

Preferred Qualifications

Hands-on experience with cloud platforms (e.g., AWS, GCP, Azure) and containerization (e.g., Docker, Kubernetes)

Benefits

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