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Posted Jun 4, 2026

Senior Fullstack Engineer – Customer Experience Platform & Support Automation Leader at careerzynith

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Join the Future of Commerce with careerzynith!

careerzynith is the largest livestream shopping platform across North America and Europe, empowering millions of users to buy, sell, and discover the products they love. By blending community, entertainment, and commerce into a single, vibrant ecosystem, we are redefining the way people shop online. Our remote‑first, co‑located teams are united by a shared purpose, guided by our core values, and spread across hubs in the United States, United Kingdom, Ireland, Poland, and Germany. Together, we are building the next generation of online marketplaces.

From fashion and beauty to cutting‑edge electronics, rare collectibles such as trading cards, comic books, and even live plants, our live auctions attract a diverse audience. As one of the fastest‑growing marketplaces in the industry, careerzynith is on a relentless trajectory of expansion, and we need bold, forward‑thinking problem solvers to help us scale every facet of the business.

The Role

careerzynith is seeking a Senior Fullstack Engineer to join our Customer Experience team. In this role, you will design, develop, and own a world‑class Customer Support platform that handles a high volume of complex, multi‑modal support requests—from technical glitches to purchasing and logistics challenges—for both buyers and sellers. You will be responsible for creating intuitive user‑facing experiences, scaling internal tooling, and building intelligent automation that resolves thousands of customer issues per hour.

Key aspects of the role include:

Team members are expected to be within commuting distance of our San Francisco, Seattle, Los Angeles, or New York hubs, though flexible remote arrangements are supported for the right candidate.

Who You Are

careerzynith thrives on low‑ego collaboration, a growth mindset, and a relentless focus on impact. As our next Fullstack Engineer, you should bring at least five years of full‑time software engineering experience in high‑growth environments, along with the following attributes:

Essential Qualifications

Preferred Qualifications

Core Skills & Competencies

Career Growth & Learning Opportunities

At careerzynith, your career trajectory is limited only by your ambition. As a senior engineer, you will have access to:

Work Environment & Culture at careerzynith

careerzynith cultivates a culture of curiosity, inclusion, and impact. Our teams operate in a hybrid model that balances remote flexibility with vibrant office hubs where collaboration thrives. Key cultural pillars include:

Compensation, Perks & Benefits

careerzynith offers a competitive total rewards package designed to attract and retain top talent:

Why Join careerzynith?

If you are passionate about building technology that directly touches millions of lives, thrive in a high‑velocity environment, and want to shape the future of live commerce, careerzynith is the place to make that impact. You will work alongside visionary product thinkers, world‑class engineers, and a community that celebrates curiosity and boldness.

Ready to bring your expertise to a platform that is redefining e‑commerce? Apply today and become a pivotal part of careerzynith’s mission to turn passion into business and connect people through commerce.

Equal Opportunity Employer

careerzynith is proud to be an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability, or any other characteristic protected by law.

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