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Sr Web Engineer Jobs in California (NOW HIRING)

Senior Web Engineer Poshmark is looking for a talented and creative Senior Web Engineer. The candidate is expected to create web applications that have a simple user interface and solid code that ...

WePay is looking for a passionate web engineer to join our rapidly growing team and help shape the future of payments. Responsibilities: * Create web applications, primarily with PHP * Implement web ...

We are looking for a founding member for the web engineering team to build out the first consumer facing web platform. The product will feature real time, live updating data and context dependent ...

We are looking for a founding member for the web engineering team to build out the first consumer facing web platform. The product will feature real time, live updating data and context dependent ...

WePay is looking for a passionate web engineer to join our rapidly growing team and help shape the future of payments. Responsibilities: Create web applications, primarily with PHP Implement web ...

Senior Web Engineer

Palo Alto, CA · Hybrid

$120K - $190K/yr

Collaborate cross-functionally with Product and Engineering to help shape Typeface's Web Agent roadmap using real-world insights from the marketing website. * Drive site performance and SEO best ...

Senior Web Engineer

Palo Alto, CA · On-site

$120K - $190K/yr

Collaborate cross-functionally with Product and Engineering to help shape Typeface's Web Agent roadmap using real-world insights from the marketing website. * Drive site performance and SEO best ...

As the Senior Web Developer on a small, high-performing team of specialists, you will deliver high quality custom software solutions for our clients involving work flow, analytics, decision support ...

Ten2Eleven is looking for a Senior Web Developer for our Pharmaceutical and Healthcare practice that is familiar with the Microsoft stack of products to develop and support applications. As the ...

Job summary The Senior Web Developer will lead the design and development of customer facing and internal interfaces to manager and monitor all services offered by TeleSign. Job Responsibilities

Job summary The Senior Web Developer will lead the design and development of customer facing and internal interfaces to manager and monitor all services offered by TeleSign. Job Responsibilities The ...

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Sr Web Engineer information

What is a Sr Web Engineer?

Senior Web Engineers are experienced professionals responsible for designing, developing, and maintaining complex web applications. They often lead technical projects, mentor junior developers, and make critical architectural decisions to ensure scalability, performance, and security. Sr Web Engineers work closely with product managers, designers, and other stakeholders to deliver high-quality web experiences. Their expertise typically includes a strong command of front-end and back-end technologies, as well as best practices in software development.

What are the key skills and qualifications needed to thrive as a Sr Web Engineer, and why are they important?

To thrive as a Sr Web Engineer, you need advanced proficiency in web development languages (such as JavaScript, HTML, CSS), deep experience with frameworks (like React or Angular), and a strong understanding of software architecture and design patterns, typically demonstrated by a bachelor’s degree in computer science or equivalent experience. Familiarity with version control systems (like Git), CI/CD pipelines, cloud platforms (such as AWS or Azure), and relevant certifications can be highly beneficial. Exceptional problem-solving, leadership, and communication skills help you mentor junior developers and collaborate effectively with cross-functional teams. These competencies are crucial for delivering scalable, maintainable web solutions and driving innovation in a fast-evolving tech landscape.

What are some common challenges Sr Web Engineers face when leading complex web projects?

Sr Web Engineers often encounter challenges such as balancing project deadlines with code quality, integrating new technologies with legacy systems, and coordinating effective communication across multidisciplinary teams. They are typically responsible for making architectural decisions, which requires staying updated on industry best practices and anticipating scalability needs. Navigating these challenges successfully involves strong problem-solving skills, proactive collaboration, and the ability to mentor junior developers while ensuring project goals are met.

What cities in California are hiring for Sr Web Engineer jobs?

Cities in California with the most Sr Web Engineer job openings:

Infographic showing various Sr Web Engineer job openings in California as of August 2026, with employment types broken down into 95% Full Time, 2% Part Time, and 3% Contract. Highlights an 85% Physical, 6% Hybrid, and 9% Remote job distribution.

Sr. Software Engineer II, Web

Poshmark

Redwood City, CA • On-site

$120 - $150/hr

Other

Re-posted 10 days ago


Job description

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.

Senior Web Engineer

Poshmark is looking for a talented and creative Senior Web Engineer. The candidate is expected to create web applications that have a simple user interface and solid code that touches the lives of millions of users. The role will be dynamic and varied, requiring a versatile self‑starter willing to dive into multiple initiatives. This role will provide an excellent opportunity to implement code that may run in production, at scale.

While having the opportunity to work with a talented team to rapidly roll out changes and measure their impact, while being mentored and guided.

Responsibilities
  • Responsible for creating web application features.

  • Develop a scalable, high performance and maintainable code.

  • Work with web technologies built on Web, database, and caching technologies.

  • Tune the performance for the web application.

6-Month Accomplishments
  • Get familiar with the existing web architecture and code base.

  • Contributing to and taking ownership of Web features.

  • Have a good collaboration within the team. Also, with other teams like Product, Design, QA, devOps etc

  • Should participate in technical discussions and be able to evaluate the design and architecture of the solution to the problems.

12+ Month Accomplishments
  • Come up with ideas/changes to improve the application both from performance and scalability perspective.

  • Get involved in the application architecture discussions and propose changes that would improve the existing infrastructure.

  • Should be able to independently drive feature development.

Desired Skills
  • 5 years software development experience, including at least 2 years in building easy to use, responsive web applications

  • Experience in any of the following is highly desirable - Node, Vue, React, Angular, Ruby on Rails, NoSQL technologies (i.e. MongoDB), AWS.

  • Skills in building web development stack.

  • Understanding and designing RESTful web services.

  • Bachelor’s degree in Computer Science or a related field

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