Senior Software Engineer

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** Welcome to the Agentic Commerce Era**## At Commerce, our mission is to empower businesses to innovate, grow, and thrive with our open, AI-driven commerce ecosystem. As the parent company of , , and , we connect the tools and systems that power growth, enabling businesses to unlock the full potential of their data, deliver seamless and personalized experiences across every channel, and adapt swiftly to an ever-changing market.

Simply said, we help businesses confidently solve complex commerce challenges so they can build smarter, adapt faster, and grow on their own terms. If you want to be part of a team of bold builders, sharp thinkers, and technical trailblazers, working together to shape the future of commerce, this is the place for you.
** Senior Software Engineer (Frontend)
**** Big Commerce, part of the Commerce brand family, helps merchants increase sales at every stage of their growth. From small startups to mid-market businesses and large enterprises, we provide the leading e-commerce platform. Our customers can then concentrate on what's most important: growing their businesses. We enable our customers to build, innovate, and grow, collectively reshaping the e-commerce industry.
**** Commerce is seeking a Senior Software Engineer (Frontend) to join the Store Management Experience Team. This team owns the end-to-end experience of how merchants onboard to Commerce and manage their stores within the control panel.
**** In this role, you will design and build custom onboarding and migration experiences for merchants transitioning from other commerce platforms (e.g., Shopify, Word Press/Woo Commerce, Magento, and others). You will create intuitive, workflow-driven React applications that simplify store setup, streamline data migration, and reduce time-to-value for new merchants.
**** This role requires strong frontend engineering expertise in React and Type Script, a deep understanding of SaaS product UX patterns, and an ability to collaborate across backend and platform teams to ensure seamless data integration.
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* What You’ll Do:

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* ** Design, build, and maintain modern onboarding and migration experiences using React and Type Script**
* ** Develop guided workflows that help merchants configure their stores, import data, and launch quickly**
* ** Architect reusable frontend components and state management patterns that support complex, multi-step setup flows**
* ** Integrate with Big Commerce backend services and external platform APIs to support product, customer, and order migration**
* ** Collaborate with backend engineers to define and consume APIs that power onboarding and data migration**
* ** Contribute to UX decisions that reduce onboarding friction and improve activation metrics**
* ** Participate in architectural discussions and help evolve frontend standards and best practices**
* ** Write well-tested, maintainable code and provide thoughtful code reviews**
* ** Mentor engineers and contribute to a culture of ownership and technical excellence
****** Who You Are:****
* ** 5+ years of professional experience in frontend or full-stack software development**
* *
* Education:

Minimum Bachelor's degree in CS, EE, SW, CE, MIS.**
* ** Strong proficiency in modern JavaScript/Type Script and frontend frameworks**
* ** Strong proficiency in React and Type Script**
* ** Experience building complex, workflow-driven web applications (multi-step forms, configuration wizards, dashboards)**
* ** Deep understanding of state management patterns and scalable component architecture**
* ** Strong experience integrating RESTful APIs into frontend applications**
* ** Experience working in SaaS environments with cross-functional product teams**
* ** Strong problem-solving skills and a bias toward execution
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* Bonus Points:

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* ** Experience working with e-commerce platforms (Big Commerce, Woo Commerce, Shopify, Magento, etc.)**
* ** Experience building onboarding, activation, or growth-focused product experiences**
* ** Familiarity with data migration concepts (ETL processes, data transformation, validation pipelines)**
* ** Experience working with PHP, particularly in building scalable API-driven services**
* **…