Senior Software Engineer, iOS

Poshmark

Senior Software Engineer, iOS responsible for architecting and maintaining iOS applications at Poshmark. Collaborating with cross-functional teams to build impactful mobile solutions.

Posted 4/12/2026full-timeRedwood City • California • 🇺🇸 United StatesSenior💰 $124,700 - $208,850 per yearWebsite

Tech Stack

Tools & technologies

iOSObjective-CSwift

About the role

Key responsibilities & impact

Architect build, iterate and maintain our iOS mobile application
Influence different aspect of the development process like API creation, design, and product
Own important pieces of the product that have high visibility both internally and externally
Find simple, elegant solutions to hard problems
Take part in code reviews and give constructive feedback to peer developers
Partner closely with our design, product, and other Engineering team to produce an application that flows seamlessly and works intuitively with our users.
Write high quality and maintainable code and unit-test for quality assurance, robustness, including edge cases, usability, and general reliability

Requirements

What you’ll need

Outstanding engineer proven by great results, interesting hobby projects.
Strong foundation in the fundamentals of computer science, data structures, algorithms, and software design.
3+ years in developing iOS applications
Fluency with Swift. Objective-C is a plus.
Experience with common front end patterns like MVVM, Swift Concurrency and Swift UI is a plus.
Excellent communication skills and ability to work cross-functionally
Design and use of RESTful web services to create connected applications.
Understanding of code versioning tools, such as Git
Basic Knowledge of writing unit tests.
BS or MS in Computer Science or related technical discipline (or equivalent)

Benefits

Comp & perks

🌐 Worldwide Post a Job Affiliates ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs Account Poshmark Website LinkedIn All Job Openings 501 - 1000 employees Founded 2011 🏪 Marketplace 🛍️ eCommerce 👗 Fashion 💰 Venture Round - Poshmark on 2020-12 Marketplace
eCommerce
Fashion Poshmark is a mobile-first social marketplace where individuals can buy, sell, and discover new and secondhand fashion, home decor, beauty products, and accessories. The platform emphasizes quick listing from a phone, social sharing and community-driven discovery (Posh Parties), prepaid shipping labels, buyer protection, and authentication for high-value items. Poshmark operates primarily as a consumer-focused e-commerce marketplace with apps on iOS and Android and serves millions of shoppers and sellers. Senior Software Engineer – iOS 🔥 35 minutes ago 🏢🏡 Redwood City – Hybrid 💵 $124.7k - $208.8k / year ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer iOS Objective-C Swift Apply Now Find Hiring Managers Customize resume for this job ☆ Save ☑️ Mark as applied ❌ Hide Report problem 📋 Description
Architect build, iterate and maintain our iOS mobile application
Influence different aspect of the development process like API creation, design, and product
Own important pieces of the product that have high visibility both internally and externally
Find simple, elegant solutions to hard problems
Take part in code reviews and give constructive feedback to peer developers
Partner closely with our design, product, and other Engineering team to produce an application that flows seamlessly and works intuitively with our users.
Write high quality and maintainable code and unit-test for quality assurance, robustness, including edge cases, usability, and general reliability 🎯 Requirements
Outstanding engineer proven by great results, interesting hobby projects.
Strong foundation in the fundamentals of computer science, data structures, algorithms, and software design.
3+ years in developing iOS applications
Fluency with Swift. Objective-C is a plus.
Experience with common front end patterns like MVVM, Swift Concurrency and Swift UI is a plus.
Excellent communication skills and ability to work cross-functionally
Design and use of RESTful web services to create connected applications.
Understanding of code versioning tools, such as Git
Basic Knowledge of writing unit tests.
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Hard Skills & Tools

iOS developmentSwiftObjective-CRESTful web servicesMVVMSwift ConcurrencySwift UIdata structuresalgorithmssoftware design

Soft Skills

communicationcross-functional collaborationconstructive feedbackproblem-solvingownershipattention to detailcreativityteamworkadaptabilityinfluence

Certifications

BS in Computer ScienceMS in Computer Science