Full-Stack Engineer: Build Seller Platform & Core Infra

Poshmark; Redwood City (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Poshmark is seeking a Full Stack Engineer to join our Seller Pod in California. You’ll build end-to-end features that power how sellers list, manage, and grow their businesses on our marketplace, spanning frontend interfaces and backend services.

You’ll work with React or similar, Ruby/Java/Python on the backend, design clean APIs, and contribute to performance, reliability, and developer tooling. Collaboration with Product, QA, and Design is expected.

Qualifications

• 2–4 years of professional experience in full stack software engineering.
• Strong CS fundamentals: data structures, algorithms, and software design.
• Experience with frontend frameworks (React, Vue, or Angular) and backend languages.
• Familiarity with RESTful APIs, databases, and cloud services.

Responsibilities

• Design, develop, and maintain full stack features for seller experiences.
• Build responsive frontends and scalable backend services.
• Collaborate with Product, QA, and Design for feature delivery.
• Write clean tests and participate in code reviews.

Skills

Frontend Frameworks

HTML/CSS/JS/TS

Backend Languages

RESTful APIs

Databases

Cloud/AWS

CS Fundamentals

Education

BS in CS

Tools

SQL/NoSQL

Job description

Poshmark is seeking a Full Stack Engineer to join our Seller Pod in California. You’ll build end-to-end features that power how sellers list, manage, and grow their businesses on our marketplace, spanning frontend interfaces and backend services.

You’ll work with React or similar, Ruby/Java/Python on the backend, design clean APIs, and contribute to performance, reliability, and developer tooling. Collaboration with Product, QA, and Design is expected.