Lead Backend Software Engineer – Product API

🕒 December 17, 2025

🏄 California, New York, +1 more states – Remote

🏄 California – Remote 🗽 New York – Remote 🍂 Massachusetts – Remote

💵 $200k - $235k / year

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

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Philo

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2010

📱 Media

📡 Telecommunications

💰 $50M Series D on 2020-08

Media • Telecommunications

Philo is a streaming service offering access to a wide array of TV shows and movies. Geared towards viewers in the United States, Philo provides channels for entertainment enthusiasts seeking diverse content options. The service emphasizes user-friendly features and comprehensive support for devices, and it actively engages with its audience through blogs, press releases, and job opportunities, while maintaining a focus on privacy and accessibility.

📋 Description

• Provide technical leadership to members of the Product API team, including input on system architecture and design tradeoffs, as well as coaching other members of the team and mentoring new hires. • Collaborate with product and client engineering teams to design and deliver GraphQL APIs that enable rich, performant user experiences while maintaining clean separation of concerns and optimal client-server interactions. • Own and evolve critical product subsystems including recommendations, catalog, search, in-app notifications, user preferences, viewing history, collections, experiments, and feature flags. • Build and maintain proxy and augmentation layers that integrate domain services from across the organization (such as video infrastructure, recommendations systems, and search) into a cohesive, unified API. • Drive continuous improvements to the reliability, performance, scalability, and maintainability of Philo's product API infrastructure, ensuring sub-second response times and high availability across all endpoints. • Collaborate with data science and product analytics teams to instrument the API layer for experimentation, A/B testing, and feature rollouts, enabling data-driven product decisions. • Build and enhance observability tools to proactively monitor API performance, identify bottlenecks, debug issues, and ensure optimal cache utilization across the system. • Work with infrastructure teams to optimize database queries, implement effective caching strategies, and ensure DataServer scales efficiently as Philo's user base grows.

🎯 Requirements

• 8+ years of software development experience. • 2+ years of experience mentoring and providing technical guidance to other engineers (bonus points for experience or interest in managing engineering teams). • Strong experience designing and implementing GraphQL APIs at scale (bonus points for experience with complex schema design, query optimization, and federation patterns). • Proven track record of building highly efficient and highly available backend services using NodeJS, Ruby, Golang, Python, or similar programming languages. • Experience operating in cloud computing environments using modern software deployment technologies (e.g. Docker, Kubernetes, AWS). • Deep understanding of API design principles, RESTful and GraphQL patterns, caching strategies, and performance optimization techniques. • Experience working with large amounts of data and making data-based decisions to prioritize projects, including familiarity with relational and non-relational databases and modern data warehousing and querying with SQL. • Strong systems thinking with the ability to design cohesive API abstractions that cleanly separate concerns while enabling flexibility for diverse client needs. • Experience building proxy and aggregation layers that integrate multiple backend services into unified APIs. • Familiarity with experimentation frameworks, feature flag systems, and A/B testing infrastructure. • Experience and aptitude for collaborating and communicating with internal stakeholders across product, design, client platform engineering, and data science teams. • Understanding of video streaming product ecosystems and the unique challenges of building APIs for multi-platform applications (web, mobile, TV). • Expertise in either product-facing API development or machine learning systems and model serving infrastructure.

🏖️ Benefits

• Full health, dental and vision coverage for you and your family • 401(k) plan with employer contributions (we match 100% of deferrals up to 3% of pay and 50% of the next 2% of pay) • Flexible working hours • Up to 20 weeks of fully paid parental leave • Unlimited paid time off for vacation and sick leave • $2,000 annual vacation bonus (we pay you to take a two week vacation) • $5,250 annually for professional development and educational assistance • $1,250 annual home office + TV stipend during first year of employment ($250 annually thereafter) • $500/month ($6,000/year) bonus for employees who commit to working at least 3 days per week in our offices, plus generous commuter benefits ($315/month towards transit, rideshare, bike rental, or parking at our HQ office in San Francisco) • Free Gympass subscription — an all-in-one corporate benefit that gives employees the largest selection of gyms, studios, classes, training and wellness apps • Dog-friendly office • And much more!