Senior Full Stack Engineer

Company: Confidential

Location: Los Angeles, CA

Posted on: July 18

Senior Full Stack Engineer Leading Direct Marketing Powerhouse

Were looking for a Senior Full Stack Engineer that will serve as a technical leader driving the evolution of our high-scale eCommerce and ad-tech platforms. This role combines deep technical expertise in payment systems, server-to-server integrations for tracking and conversions, and AI-driven development practices with the vision to lead and mentor our engineering team. You will architect and maintain mission-critical systems that manage 200+ simultaneous offers in a complex, configuration-driven environment, ensuring scalability, reliability, and performance across our Heroku-based infrastructure.

*Hybrid position to our office located in Los Angeles, CA or open to remote.

Role Details:

Platform Architecture & Development

• 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

Payment Systems & Integration

• 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

Ad-Tech & Data Pipeline Engineering

• 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

Technical Leadership & Innovation

• 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

System Reliability & Performance

• 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

What Were Looking For:

Core Technical Stack

• 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

eCommerce & Payment Expertise

• 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

Ad-Tech & Analytics

• 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

AI & Modern Development

• 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

Leadership & Communication

• 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

Operational Excellence

• 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

The base salary range is $112,600 - $150,200, plus dual bonus potential along with employee ownership.