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.

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 Poshmarks 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 Poshmarks 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 Poshmarks 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., 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.

- Bachelors 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