Principal E-Commerce Engineer

• Experience in high-growth direct-to-consumer or consumer health ecommerce environments
• Experience with subscription commerce and recurring billing models
• Experience with managing and simplifying diverse multi-vendor API integrations
• Experience with headless commerce architectures and evaluation of when they are or are not appropriate
• Experience with multi-store, multi-brand, or international ecommerce implementations
• Experience designing event-driven or asynchronous workflows for ecommerce operations
• Experience working in regulated, high-trust, or operationally complex environments
• Experience mentoring senior engineers and influencing engineering standards without direct people management responsibility

Collaboration

This role will work closely with software engineering, product, growth, operations, finance, customer experience, and leadership. This person will also play a key role in evaluating and managing external platform vendors, service providers, and technical integration partners as needed.

Work Environment

This is a senior individual contributor role for someone expected to operate with high autonomy, strong judgment, and high technical ownership. The ideal candidate is comfortable moving between architecture, implementation, debugging, and cross-functional decision-making in a fast-moving environment.

Happy Health is an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Originally posted on Himalayas

• 8+ years of software engineering experience, with meaningful depth in ecommerce systems
• Significant hands-on experience with Shopify, including custom storefront development, APIs, app integrations, and platform limitations
• Strong experience with Stripe and production-grade payment processing systems
• Deep understanding of ecommerce architecture, including checkout flows, order lifecycle, refunds, subscriptions, discounts, taxes, and transaction edge cases
• Experience implementing, maintaining, and operating analytics instrumentation, attribution systems, event tracking, or related marketing technology integrations in production eCommerce environments
• Strong experience designing and operating reliable, scalable production systems
• Experience with modern web application architecture and performance optimization for conversion-sensitive customer experiences
• Experience integrating ecommerce platforms with third-party systems such as ERP, OMS, WMS, CRM, analytics, support, or marketing systems
• Demonstrated ability to lead major technical decisions across systems, services, and teams
• Strong communication skills and ability to work cross-functionally with both technical and non-technical stakeholders
• Proven ability to operate autonomously and set technical direction while remaining hands-on