Software Engineer

About Poshmark

Poshmark is the leading fashion marketplace where style comes alive through discovery, self-expression, and human connection. Powered by a vibrant community of 165 million members, Poshmark brings real people and taste to shopping through a social experience shaped by shared discovery. Buying and selling fashion feels simple, joyful, and personal, while every item tells its own story. Poshmark empowers sellers to grow meaningful businesses, keeps fashion in circulation longer, and gives shoppers access to unique and trusted finds, from everyday pieces to one-of-a-kind vintage and luxury.

Responsibilities

• Design, develop, test, deploy, and operate scalable backend services that support Poshmark’s marketplace.
• Independently own complex, well-defined technical initiatives from requirements and design through production rollout and ongoing support.
• Translate product and technical requirements into reliable, maintainable, and extensible software solutions.
• Make sound design and implementation decisions by evaluating scalability, performance, reliability, security, and operational trade-offs.
• Develop and enhance APIs, data models, asynchronous workflows, and integrations across distributed systems.
• Troubleshoot complex production issues, perform root-cause analysis, and implement sustainable fixes.
• Improve system observability, monitoring, performance, fault tolerance, and operational readiness.
• Participate actively in technical design reviews and provide constructive feedback through code reviews.
• Collaborate with Product, QA, Infrastructure, and adjacent engineering teams to manage dependencies and deliver high-quality solutions.
• Contribute to improving development processes, engineering practices, tooling, and team workflows.
• Mentor junior engineers and support their technical development through design discussions, code reviews, and knowledge sharing.
• Participate in production support and on-call responsibilities as required by the team.