Sr. Software Engineer, Cloud Platform

Poshmark

Redwood City, California, United States permanent

Posted: January 14, 2026

Required Skills

Job Description

About Poshmark

Poshmark is a leading fashion resale marketplace powered by a vibrant, highly engaged community of buyers and sellers and real-time social experiences. Designed to make online selling fun, more social and easier than ever, Poshmark empowers its sellers to turn their closet into a thriving business and share their style with the world. Since its founding in 2011, Poshmark has grown its community to over 130 million users and generated over $10 billion in GMV, helping sellers realize billions in earnings, delighting buyers with deals and one-of-a-kind items, and building a more sustainable future for fashion. For more information, please visit www.poshmark.com, and for company news, visit newsroom.poshmark.com.

🎯 About the Role

Poshmark is looking for a Senior Software Engineer to support the rapid growth of our Cloud Platform and marketplace. In this role, you’ll help build and operate a high-traffic, fast-growing platform while receiving mentorship and guidance from experienced engineers. You’ll work at scale and push the boundaries of cloud-based technologies to help power Poshmark’s continued growth.

⚙️ What You’ll Do

• Build applications and services on top of a distributed cloud architecture, using a combination of NoSQL data solutions, Queueing technologies, and Search infrastructure

• Design and implement new product features for the marketplace using a highly iterative and data-oriented approach

• Build, analyze, tune and enhance the core components of the Poshmark product and cloud platform that powers millions of e-commerce transactions

• Work closely with the product & customer support teams to have a direct impact on our growing business

💪 What You’ll Bring

• BE or MS in Computer Science or related technical discipline (or equivalent). Solid foundation in computer science with strong competencies in data structures, algorithms and software design

• 4+ years of relevant software engineering experience through projects or internships

• Experience with Amazon AWS or other Cloud Computing platforms is preferred

• Experience with any or all of: Ruby, JRuby, Java, HTML5, JavaScript, CSS, MongoDB, ElasticSearch, RabbitMQ, Linux

• User-oriented focus and obsession with quality

• Experience with email and or push notifications technology a plus

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