Senior Full Stack Engineer

Summary

Join our employee-owned company as a Senior Full Stack Engineer and lead the evolution of our high-scale eCommerce and ad-tech platforms. You will leverage your expertise in payment systems, server-to-server integrations, and AI-driven development to architect and maintain mission-critical systems. This role requires deep technical skills and the ability to mentor a team. The position offers a hybrid or remote work option and a competitive salary and benefits package. You will be responsible for designing, developing, and scaling full-stack applications, leading the modernization of legacy codebases, and ensuring system reliability and performance. The ideal candidate will have extensive experience with Angular, Node.js, PostgreSQL, and various payment gateways, along with a strong understanding of ad-tech and AI-assisted development practices.

Requirements

• Expert-level proficiency in Angular (latest versions), Node.js, and PostgreSQL
• Deep understanding of Heroku platform capabilities, limitations, and optimization strategies
• Strong experience with RESTful APIs, GraphQL, and real-time data synchronization
• Proficiency in SQL optimization, database design, and data modeling at scale
• Hands-on experience with payment gateway integrations (Stripe, PayPal, Cybersource, etc.)
• Understanding of PCI compliance, tokenization, and secure payment processing
• Experience with subscription management, dynamic pricing, and complex offer configurations
• Knowledge of tax calculation services and international payment considerations
• Expertise in server-side tracking implementations (Facebook Conversions API, Google Enhanced Conversions, TikTok Events API)
• Understanding of attribution models, conversion tracking, and marketing analytics
• Experience with event-driven architectures and real-time data streaming
• Knowledge of privacy regulations (GDPR, CCPA) and their impact on tracking systems
• Active practitioner of AI-assisted development using GitHub Copilot, ChatGPT, or similar tools
• Experience implementing ML/AI features in production applications
• Forward-thinking approach to leveraging AI for code generation, testing, and documentation
• Commitment to staying current with AI development tools and best practices
• Proven ability to communicate complex technical concepts to diverse stakeholders
• Track record of mentoring developers and building high-performing teams
• Self-driven with exceptional problem-solving and decision-making abilities
• Experience leading technical initiatives from conception to production deployment
• Strong debugging and troubleshooting skills across distributed systems
• Experience with CI/CD pipelines, automated testing, and deployment strategies
• Understanding of cloud cost optimization and resource management
• Commitment to documentation and knowledge sharing

Responsibilities

• Design, develop, and scale full-stack applications supporting 200+ concurrent offers in a configuration-driven eCommerce environment on Heroku Services
• Architect robust server-to-server integration solutions for customer event signals supporting tracking and conversions between ad platforms, analytics systems, and eCommerce infrastructure
• Lead the modernization and synchronization of legacy codebases, establishing sustainable maintenance practices and technical debt reduction strategies
• Own end-to-end payment processing architecture including credit card transactions, digital wallets (PayPal), and enterprise payment gateways (Cybersource)
• Implement and maintain PCI-compliant payment flows with advanced fraud detection and tax calculation capabilities
• Design fault-tolerant payment reconciliation systems that handle high-volume transactions with zero downtime
• Build and optimize customer event signal management systems for real-time ad attribution and conversion tracking
• Develop sophisticated data collection pipelines capturing user interactions across web properties, video players, and checkout flows
• Implement server-side tracking and conversion solutions for privacy-compliant marketing attribution across multiple ad platforms
• Champion AI-assisted development practices, integrating AI agents and tools into daily engineering workflows
• Mentor engineering team members, establishing coding standards and architectural best practices
• Lead technical decision-making with precision, balancing immediate needs with long-term scalability
• Drive adoption of modern development practices while managing technical debt in existing systems
• Ensure 99.9%+ uptime for critical eCommerce services handling high-traffic campaigns
• Optimize Angular/Node.js/PostgreSQL stack performance for sub-second response times
• Implement comprehensive monitoring, alerting, and self-healing systems
• Lead incident response and post-mortem processes to continuously improve system reliability

Benefits

• Comprehensive healthcare coverage – We cover 100% of premiums for medical, dental, and vision plans for employee-only plans
• Through our charity sponsorships, you can make a positive impact on communities worldwide. We’ve donated over $6.1 million to date
• We match up to 3.5% of your 401k contributions , ensuring your retirement savings grow alongside your career
• 6 paid sick and mental health days, an Employee Assistance Program, free weekly yoga and meditation classes, and additional mental health benefits, because we take a holistic approach to your well-being
• Invest in your future with our Employee Stock Ownership Plan , where company contributions fund your retirement plan with company stock
• Professional development opportunities with mentorship, continuous learning programs, and performance-based pay increases, empowering you to progress and excel in your career
• Tuition reimbursement program , which reimburses eligible tuition expenses up to specified amounts, empowering you to invest in your ongoing growth and development
• Work towards our collective goals and earn up to 2 extra weeks of pay each month, based on the achievement of KPIs
• Celebrate your accomplishments with our Win of the Week, Spot Bonus, Work Anniversary, and Shout-Outs programs , where your hard work is not only valued but also acknowledged and rewarded
• Reimbursements for a portion of personal cell phone and internet usage for eligible employees
• For those coming into our Woodland Hills, CA office, you’ll find a fully stocked kitchen and a free on-site gym
• Virtual and in-person company events , like our annual holiday party, happy hours, and virtual cooking nights, designed to cultivate connections and enhance work-life balance