Lead Software Engineer-Backend; PHP

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 Big Commerce, Feedonomics, and Makeswift, 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.

We believe in harnessing AI responsibly to unlock new possibilities, and we’re looking for individuals who use it intentionally to solve problems, accelerate outcomes, and expand what’s possible in their role. Our purpose is to 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 who shape the future of commerce, this is the place for you.

We are looking for a highly motivated and experienced Lead Software Engineer - Backend to join the fully remote Engineering team  a Lead, you will define the technical vision for your domain and engage with Staff Engineers to deliver projects aligned to our broader platform vision. You will work with a highly collaborative and cross-functional Backend Engineering team to deliver and scale core infrastructure components and services that power our robust, high-performance, data-intensive SaaS platform.

• Define the technical vision to advance the domain and engage with Staff Engineers to deliver projects aligned to the platform vision.
• Design and implement high-quality solutions to the most complex and ambiguous problems in the domain, with focus on scalability and high availability.
• Own end-to-end technical project execution, including scoping, sequencing, forecasting ECDs, and driving delivery towards deadlines.
• Participate in RFCs and architectural discussions, evaluating and recommending tools, technologies, and processes that solve concrete business problems.
• Own and represent deep SME across complex and sophisticated areas, guiding design decisions and influencing technical direction.
• Proactively monitor the state of the team's services and recommend optimizations based on data.
• Advocate for practices and implement tooling to enable others, leveraging automation to enable the CI/CD pipeline, thereby streamlining efficient application development and deployment.
• Be a champion for Continuous Improvement in end-to-end infrastructure and systems, including conducting post-mortems to analyze and prevent repeat failures.
• Act as a dedicated mentor to multiple mentees, providing insightful feedback about teammates to help them excel.
• Drive team-level education and documentation practices to foster a culture of shared learning.
• Proactively identify and build important relationships with partner teams to ensure cross-functional alignment.

• 7+ years of programming experience in backend languages Strong experience with PHP is required (Experience with Python, GoLang, Java or a similar programming language is a bonus).
• Extensive experience with MySQL or a similar technology , paired with a strong understanding of database schema design, caching and scalability.
• Strong understanding of various communication protocols (TCP, gRPC, etc) and Distributed Systems.
• Ability to perform time and memory complexity analysis.
• Experience in Caching technologies (e.g. Redis or Memcached).
• Dev Ops experience is highly preferred.
• Solid understanding of Linux operating systems and experience with modern CI/CD and containerization tools like Docker.
• Experience with Cloud solutions (GCP highly preferred)
• Experience with Full-stack observability…