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.
We are looking for a Software Engineer II to join our Core Platform team and contribute to
building reliable, high-performance backend systems that power our fast-growing
marketplace. This is an exciting opportunity to work with experienced engineers and gain
hands-on experience developing cloud-native services used by millions of users every day.
Responsibilities
- Design, develop, and maintain backend services that support Poshmark's marketplace experience.
- Collaborate with peers and senior engineers to implement scalable, efficient, and maintainable systems.
- Write clean, well-documented, and well-tested code following best practices.
- Participate in code reviews and learn from feedback to continually improve.
- Troubleshoot and fix issues across distributed systems in production environments.
- Contribute to improving development processes, tooling, and team workflows.
6-Month Accomplishments
- Become proficient with Poshmark's tech stack, development tools, and codebase.
- Ship production-quality code with guidance from senior team members.
- Take ownership of small to medium-sized components or features.
- Collaborate effectively with Product, QA, and Design teams on feature delivery.
12+ Month Accomplishments:
- Independently deliver features from design to production.
- Contribute to performance improvements and scalability initiatives.
- Develop a strong understanding of Poshmark's system architecture and make data-driven technical decisions.
- Participate in technical discussions and contribute ideas to improve platform reliability and efficiency.
- Mentor interns or new hires joining the team.
Requirements
- 1 - 3 years of professional experience (including internships) in backend software engineering.
- Strong understanding of computer science fundamentals data structures, algorithms, and software design principles.
- Proficiency in at least one backend language (e.g., Ruby, Java, Python, or Go).
- Familiarity with RESTful APIs, databases (SQL/NoSQL), and caching or message-queue systems.
- Interest in cloud technologies (AWS, GCP, or similar) and scalable architectures.
- Bachelor's degree in Computer Science or a related field, or equivalent practical experience.
- Collaborative, curious, and motivated to learn and grow within a fast-paced environment.
