Head of Engineering - eCommerce

Mountain View

**Head of Engineering - eCommerce** **Location:** Mountain View, CA (3 days/week on site minimum) **Compensation:** $300,000--$325,000 base + bonus + RSUs **About the Company** Harnham is partnering with a Fortune 500 leader in cybersecurity and digital trust, combining the scale of a global enterprise with the agility of a startup culture. The company protects hundreds of millions of users worldwide, boasts best-in-class retention, and maintains an unwavering commitment to innovation. Its platform processes over half a million telemetry events per second, and following a major fintech acquisition in 2025, the organization has significantly expanded its footprint in New York City. **The Role** They are looking for a Head of eCommerce Engineering to oversee a growing global engineering team of 20+ professionals. This is a highly visible, reporting directly to the executive team and partnering with the C-suite. Key responsibilities include: * Lead architecture and technical direction for global eCommerce platforms, modernizing legacy Java systems into AI-enabled solutions * Oversee checkout, billing, subscriptions, payments, and third-party payment integrations at global scale * Drive cloud and database modernization strategies, including Azure/AWS and OracleDB migration planning * Provide hands-on architectural guidance, influence AI adoption, and elevate engineering capabilities across teams * Partner with senior engineers, architects, and cross-functional leaders to improve scalability, reliability, and engineering practices while challenging legacy approaches **Ideal Candidate Profile** * 12+ years of experience preferred, with expertise in large-scale eCommerce, payments, platform modernization, and AI-assisted system design * Background in high-scale consumer platforms and leading legacy-to-modern transformation initiatives * BS in Computer Science or related field required; MS preferred * Strong Java backend, system architecture, and cloud experience (Azure required, AWS a plus) * Experience with commerce platforms, React, code/architecture reviews, and leading global engineering teams * Proven ability to influence technical direction and challenge legacy approaches with credibility * Preferred experience in payments, subscription billing, AI-driven modernization, OracleDB migrations, and cybersecurity/fintech domains **BENEFITS** The compensation package contains a base salary, bonus, RSUs and a comprehensive benefits package. **HOW TO APPLY** Please register your interest by sending your CV via the Apply link on this page. **KEY TERMS** Software Engineering \| Leadership \| eCommerce \| Engineering \| Fintech \| Customer \| Customer-Facing \| Direct-to-Consumer \| B2C \| Product \| Production \| Real Time \| Director \| Regulation \| Payments \| Compliance \| Regulatory \| Startup Environment \| Executive \| Scale \| Scaling \| Artificial Intelligence \| Java \| Billing \| Real-Time