{"id":2113676,"url":"https://alion.io/job/poshmark-software-engineer-ii-core-infrastructure","title":"Software Engineer II - Core Infrastructure","company":{"id":5858,"name":"Poshmark","domain":"poshmark.com","url":"https://alion.io/company/poshmark","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":95,"open_postings":8,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":94,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Redwood City, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":117000,"max_usd":232000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1246},"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"AWS","optional":false},{"name":"GCP","optional":false},{"name":"JavaScript","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Ruby","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Vue.js","optional":false}],"status":"live","first_seen_at":"2026-10-08T20:18:43Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-12T18:43:32Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"About Poshmark\nPoshmark 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.\nAbout the Role\nWe’re looking for a Full Stack Engineer to join our Seller Pod and help build the end-to-end experiences that power how sellers list, manage, and grow their businesses on our marketplace. You’ll work across the stack - crafting responsive, intuitive seller-facing interfaces on the frontend and reliable, high-performance services on the backend. This is an exciting opportunity to own features from the database to the browser, collaborate with experienced engineers, and ship products used by millions of sellers every day.\nWhat You’ll Do\nDesign, develop, and maintain full stack features that support the seller experience, from listing creation to order and inventory management.\nBuild responsive, accessible, and performant user interfaces using modern frontend frameworks.\nDevelop and maintain backend services and APIs that power seller-facing workflows.\nCollaborate with peers and senior engineers to implement scalable, efficient, and maintainable systems across the stack.\nWrite clean, well-documented, and well-tested code following best practices.\nParticipate in code reviews and learn from feedback to continually improve.\nTroubleshoot and fix issues across the frontend and distributed backend systems in production environments.\nContribute to improving development processes, tooling, and team workflows.\n6-Month Accomplishments:\nBecome proficient with the seller pod’s tech stack, development tools, and codebase across frontend and backend.\nShip production-quality full stack features with guidance from senior team members.\nTake ownership of small to medium-sized components or features end-to-end.\nCollaborate effectively with Product, QA, and Design teams on feature delivery.\n12+ Month Accomplishments:\nIndependently deliver full stack features from design to production.\nContribute to performance improvements and scalability initiatives on both the client and server side.\nDevelop a strong understanding of the seller platform’s system architecture and make data-driven technical decisions.\nParticipate in technical discussions and contribute ideas to improve platform reliability, usability, and efficiency.\nMentor interns or new hires joining the team.\nWhat You’ll Bring\n2- 4 years of professional experience (including internships) in full stack software engineering.\nStrong understanding of computer science fundamentals - 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