> Markdown version of [/jobs/ext/4139106-platform-software-engineer](https://www.wearedevelopers.com/jobs/ext/4139106-platform-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Platform Software Engineer - **Company:** The Smart - **Location:** United States - **Experience:** Starter - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Code Review, Software Debugging, Python (Programming Language), PostgreSQL, System Software, Software Technical Review, Reliability of Systems, Backend, Golang - **Published:** October 21, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=0d88994570be3027 ## About the Role 1-3 years of experience building backend APIs... ## Description As a Platform Software Engineer, you'll build and operate backend services and shared platform systems that power Happy Returns' products and internal workflows. You'll focus on designing and maintaining reliable APIs, data-access layers, and service integrations that improve system reliability, performance, and the developer experience across the company. Your day to day Take ownership of the successful implementation and delivery of new features and projects using a variety of languages and frameworks such as Golang, Python, and PostgreSQL Build and maintain data pipelines and tooling powering analytics, operational workflows, and product capabilities Actively participate in architecture discussions and technical design reviews to ensure the scalability, reliability, and security of the Happy Returns system Enforce clean code standards and excellent coding practices by conducting thoughtful code reviews and upholding a commitment to testing and maintainability Learn from senior engineers, contribute to knowledge-sharing sessions, and continuously expand your technical and problem-solving skills as you grow into more complex projects Partner with Product, Data, and other engineering teams to translate their needs into technical solutions Use AI-assisted development tools to accelerate coding, debugging, testing, and documentation workflows Support the health and stability of our systems through thoughtful testing monitoring, and debugging