Lead Software Engineer - 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 BigCommerce, 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. 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. Commerce, recognized as a "Best Place to Work" in 2026, is seeking a talented Lead Software Engineer to join our innovative Platform Governance Team! This is your chance to dive into the dynamic and rapidly expanding e-commerce industry, shaping the future of online business. This full-time position offers the flexibility of being fully remote within the United States. BigCommerce, 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. About the Platform Governance Team The Platform Governance team plays a critical role in ensuring the stability, performance, and long-term health of the BigCommerce platform. We focus on proactive measures, bottlenecks identification, tooling, and processes to maintain the integrity and scalability of our infrastructure and applications and platform in general. Our work directly impacts the experience of hundreds of thousands of merchants and millions of shoppers worldwide. We are seeking a highly motivated and skilled Platform Governance Engineer with a strong focus on scalability and load testing. In this role, you will be instrumental in designing, implementing, and automating solutions to rigorously test the performance and resilience of our platform under various load conditions, with a particular emphasis on store performance, scalability and stability. You will work on cutting-edge tooling and processes to ensure BigCommerce remains a leader in high-performance ecommerce. What you’ll do • Develop and maintain store generation tooling to create realistic and scalable test scenarios for performance and load testing • Design, execute, and analyze load tests using tools like K6 to identify performance bottlenecks and scalability limits within the BigCommerce platform, especially as it relates to store operations. • Automate metrics collection and reporting processes to provide clear, actionable insights into platform performance and load test results and ensure no regressions occur in a proactive and automated way • Collaborate closely with engineering teams to understand system architecture, identify critical performance paths, and provide data-driven recommendations for improvements • Contribute to the continuous improvement of load testing methodologies, tools, and best practices within the Platform Governance team. • Document test plans, results, and insights thoroughly • Optimising identified platform bottlenecks Who you are • More than 6 years of relevant experience in scalability and performance testing, with a strong understanding of load generation, monitoring, and analysis • Education: Preferred Minimum Bachelor's degree in CS, EE, SW, CE, MIS; or equivalent experience or completed either a comprehensive software engineering boot camp • Hands-on expertise with load testing tools, specifically K6 • Proficiency in at least two of the following programming languages, with a willingness to work across all three: Go, Scala, and Typescript • Experience with OpenTelemetry, Prometheus, ELK and strong are strongly preferred • Experience building and maintaining automation for testing, data collection, and reporting • Familiarity with cloud platforms (e.g., Google Cloud Platform, AWS, Azure) and microservices architectures • Experience with continuous integration/continuous deployment (CI/CD) pipelines Desired Soft Skills • Exceptional communication skills, capable of articulating complex technical concepts to diverse audiences (technical and non-technical) • Demonstrates a high degree of drive and initiative, proactively seeking out challenges and solutions • Possesses a strong growth mindset, eager to learn new technologies, adapt to evolving challenges, and continuously improve • A genuine interest in and/or experience within the ecommerce industry, understanding the unique performance demands of online retail Bonus Points • Prior experience in the ecommerce domain, understanding store operations, catalog management, checkout flows, etc. • Experience with other performance testing tools beyond K6 (e.g JMeter, Blazemeter, etc) • Familiarity with distributed systems and event-driven architectures Work Where You Thrive For candidates based in the Austin, TX Metro area, this role follows a hybrid work model, with three days per week in the office to balance focused individual work and meaningful in-person collaboration. • *Applicants must reside in the United States to be considered a candidate** #LI-KT1 #LI-Remote (Pay range transparency $135,000 - $227,000) The exact salary will be dependent on the successful candidate’s location, relevant knowledge, skills, and qualifications. Inclusion and Belonging At Commerce, we believe that celebrating the unique histories, perspectives and abilities of every employee makes a difference for our company, our customers and our community. We are an equal opportunity employer and the inclusive atmosphere we build together will make room for every person to contribute, grow and thrive. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the interview process, to perform essential job functions and to receive other benefits and privileges of employment. If you need an accommodation in order to interview at Commerce, please let us know during any of your interactions with our recruiting team. Learn more about the Commerce team, culture and benefits at https://www.commerce.com/careers/ Protect Yourself Against Hiring Scams: Our Corporate Disclaimer Commerce, along with many other employers, has become the subject of fraudulent job offers to hopeful prospective job seekers. Be advised: Commerce does not offer jobs to individuals who do not go through our formal hiring process. Commerce will never: • require payment of recruitment fees from candidates; • request personally identifiable information through unsanctioned websites or applications; • attempt to solicit money from you as part of the hiring process or as part of an employment offer; • solicit money to complete visa requirements as part of a job offer. If you receive unsolicited offers of employment from Commerce, we urge you to be extremely cautious and avoid engaging or responding. Apply tot his job Apply To this Job