Sr. Frontend Software Engineer
Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Mar 20, 2026. Fire Work scores A on the Alion truth index.
About Firework
Join Firework - Where Innovation Meets Impact
Firework is redefining the future of commerce as an AI and video commerce company - combining cutting-edge technology, an exclusive network of enterprise brands and retailers, and a first-mover position to win the agentic commerce race.
We've built the world's most advanced and largest video commerce platform, trusted by global brands and leading retailers. But we're more than software - our compounding network effect grows stronger with every partner we add, bringing the energy of in-store experiences online and transforming how businesses engage, convert, and build lasting customer relationships at scale.
Having raised over $235M to date, led by investors such as SoftBank Vision Fund 2, and operating at global scale, we offer unparalleled opportunities to solve complex challenges and drive meaningful impact in the future of connected commerce.
If you're curious, ambitious, and energized by big ideas - Firework is the place to grow, lead, and shape what comes next. Together.
Summary
Our Engineering team is growing! We’re seeking a skilled Sr. Frontend Engineer to join our global team, who takes a customer-oriented approach to building and scaling highly-visible front architecture and design. You love solving complex problems with creativity and find joy building things from scratch via simple, optimized robust code.
What you’ll be doing
Assess, define, and develop rich user interface and experience across scalable and distributed sites and systems that integrate with back-end components
Work closely with customers, address their technical questions and provide scalable solutions that can apply to all customers
Integrate with product managers, designers, and the rest of the engineering team to create elegant, responsive, and scalable user experience across multiple devices
Partner closely with the engineering team to improve engineering standards, tooling, and processes
Review code by your peers and help and provide insights from your experience of building and maintaining a repository of high-quality and reusable front end code
Provide technical leadership and documentation to key technical and business stakeholders, proactively informing of important project details and phases of development
We’ll be excited if you have
Bachelor’s degree in Computer Science, Engineering or relevant field
4+ years of related experience
Advanced proficiency in building responsive and scalable Web applications in React
Proven experience with AJAX, XML, JSON, and best practice design patterns
Familiarity with UX principles and site performance optimization
Advanced knowledge/ experience with React
Strong grasp of computer science fundamentals, such as data structures and algorithms
Working experience with automated testing and version control systems like Git
Team-oriented mindset and excellent communication skills; ability to understand different perspectives and contribute to meaningful technical discussions
Experience with commerce and CMS platform integration as a big plus