Senior Staff Software Engineer

Fanatics Commerce seeks a Senior Staff Software Engineer to lead technical innovation and engineering excellence across our warehouse automation, fulfillment, and eCommerce infrastructure in Jacksonville, Florida. This is a hands-on technical leadership role where you'll shape system architecture, mentor engineering teams, and directly influence how millions of sports fans worldwide receive their officially licensed apparel and collectibles.

About This Position

As a Senior Staff Software Engineer at Fanatics Commerce, you'll operate at a senior technical level, balancing deep technical expertise with cross-functional leadership. You'll be based in Jacksonville, Florida (8100 Nations Way, Jacksonville, FL 32256), working full time with the option for partial remote work. This role combines hands-on system design, engineering mentorship, and strategic technical direction across automation, testing, and fulfillment operations. Up to 10% of your time may involve domestic travel. Compensation ranges from $201,571 to $221,571 annually.

What You'll Do

• Collaborate across Retail, eCommerce, and Supply Chain teams to architect and deliver scalable, dependable software that powers automated warehouse and fulfillment operations globally
• Provide hands-on technical leadership for quality assurance, automation engineering, and performance validation, establishing best practices and raising standards across multiple engineering teams
• Design, build, and maintain comprehensive automation frameworks and test infrastructure spanning APIs, microservices, UI, and data layers, fully integrated into modern CI/CD and cloud-native environments
• Drive performance, stress, and reliability testing initiatives, including capacity modeling and failure-mode analysis, to ensure systems consistently meet demanding throughput, latency, and uptime targets
• Apply Discrete Event Simulation and system-level modeling techniques to optimize warehouse, fulfillment, and material handling throughput, utilization, and identify bottlenecks
• Integrate testing, simulation, and observability capabilities into production-grade environments alongside software engineers, enabling data-driven continuous improvements
• Lead the design and integration of advanced solutions—including AI-driven workflows, Computer Vision–powered quality assurance, and LLM-enabled capabilities—with emphasis on real-world reliability and measurable impact
• Translate operational and business requirements into robust technical designs that balance scalability, dependability, cost, and long-term maintainability
• Mentor engineering talent, lead technical discussions, oversee code reviews, and shape architecture decisions within and across teams
• Monitor emerging trends and technologies in retail, eCommerce, supply chain automation, and AI, identifying innovations that strengthen system performance and operational results

Who We're Looking For

• Bachelor's degree (or equivalent) in Computer Science, Software Engineering, Electrical Engineering, Telecommunications Engineering, or closely related discipline, with 7+ years as a Staff, Senior, or Lead Software Engineer—or equivalent experience in Retail and eCommerce platform development
• 7+ years designing, building, and operating high-throughput, high-availability distributed systems for Retail and eCommerce, demonstrating deep knowledge of scalability, resilience, fault tolerance, capacity planning, and production excellence
• 7+ years writing production software, test frameworks, and automation using Java, Python, JavaScript, Go, or similar languages; strong working knowledge of SQL and NoSQL databases
• 5+ years designing and deploying test automation across APIs, services, and data layers using industry tools (Postman, JUnit, similar), aligned with shift-left and test-pyramid methodologies
• 5+ years hands-on experience with Git, Unix/Linux, Docker, and cloud-native development workflows in large-scale Retail and eCommerce systems
• 5+ years executing load, stress, and performance testing on high-volume Retail and eCommerce platforms using industry-standard tools (JMeter, k6, similar), including workload modeling and reliability analysis
• 5+ years building, scaling, and managing CI/CD pipelines and automation platforms (GitHub Actions, GitLab CI, Jenkins, or equivalent) across distributed teams
• 5+ years working with Retail, eCommerce, and fulfillment systems including order management systems, inventory platforms, and warehouse management systems (WMS)
• 2+ years developing test harnesses and evaluation frameworks for complex systems
• 2+ years setting technical direction, leading cross-team architecture efforts, coaching senior engineers, and driving organization-wide engineering standards aligned with business goals

About Fanatics Commerce

Fanatics Commerce is the preeminent provider of officially licensed sports merchandise worldwide. We own the complete value chain—designing, manufacturing, and distributing officially licensed apparel, jerseys, headwear, and collectibles for major leagues, teams, and sporting events globally. Our network spans 900+ eCommerce storefronts and reaches fans across digital, in-venue, and retail channels in more than 180 countries. We're trusted by the world's most recognizable sports organizations to power authentic fan experiences and deliver their official merchandise at scale.

How to Apply

To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.