Engineering Manager - React Native

Fliff unpacks sports gaming into social, free-to-play games for all types of sports fans. We've built a social sports gaming experience that allows users to compete for leaderboard positioning, to achieve badges and build their status within the game.

We are pioneering play-for-fun sports gaming, with our flagship social sportsbook experience that includes sweepstakes promotions and loyalty rewards. We provide sports fans with fun, engaging, and free-to-play alternatives to real money gaming.

Fliff is seeking an experienced and hands-on Engineering Manager with deep expertise in React Native to lead a team of 4–8 engineers building the next generation of our Fantasy platform.

You’ll balance people management, technical leadership, and hands-on coding to ensure delivery of scalable, performant, and engaging features across React Native mobile apps and mobile web. We’re looking for someone who can guide a high-performing team, foster a strong engineering culture, and collaborate closely with product and design.

• Lead, mentor, and grow a team of engineers, providing regular feedback and support in their development.
• Stay hands-on by contributing to the codebase (at least 30–40%) and setting quality standards.
• Guide architecture decisions and ensure frontend codebases are scalable, testable, and well-documented.
• Ability to break down complex, real-time data challenges into manageable parts and deliver effective, performant solutions.
• Ensuring accuracy in data, UI responsiveness, and code quality to avoid costly mistakes, especially in real-time applications.
• Partner with product and design to scope, prioritize, and deliver features that delight users.
• Own delivery timelines and resource planning to ensure smooth execution across sprints.
• Foster a culture of technical excellence, accountability, collaboration, and continuous improvement.
• Drive hiring, onboarding, and performance management for your team.

• 6+ years of frontend engineering experience with a focus on React Native and TypeScript 5.0+.
• 2+ years of experience managing and mentoring engineers or leading technical teams.
• Strong command of React fundamentals: functional components, hooks, context, and advanced patterns.
• Deep understanding of state management tools like Redux (with middleware like Thunk/Saga) and Context API.
• Experience with performance optimization, code splitting, lazy loading, and responsive UI design.
• Ability to work with backend APIs (REST and WebSocket) and integrate data into complex UIs.
• Comfortable with debugging tools and testing frameworks (Jest, React Testing Library).
• Heavy usage of analytic tools (DataDog, MixPanel, Google Analytics, etc).
• Strong communication skills and the ability to collaborate across disciplines.
• Prior experience working in a high-growth startup, gaming, or real-time application environment preferred.

• Experience leading frontend initiatives in the sports betting or gaming industry.
• Familiarity with infrastructure (AWS), CI/CD, and best practices for environment pipelines.
• Prior experience driving team-level OKRs or delivery metrics.

• The annual salary for this role ranges from $209,000 to $220,000 depending on experience and background.
• Unlimited/ Flexible Time Off: Flexible vacation policy
• Health benefits with 100% paid premiums* for medical, dental, and vision plans for employees and dependents, plus on-demand healthcare concierge.
• Pre-tax savings plans for healthcare, with up to a $500 annual employer contribution to the HSA (if enrolled in the HSA medical plan).
• Employee-sponsored 401(k) to help reach your financial goals.
• Fully remote work environment.
• Generous parental leave.
• Professional development opportunities in a dynamic, global setting.

• Work Remotely.
• $500 work-from-home stipend + Equipment & Accessories.
• Opportunity for professional development in a dynamic, global setting.
• A supportive, collaborative, and knowledge-driven workplace.
• An engaging and challenging role with the freedom to innovate and develop effective solutions.

#LI-Remote

We are a multinational company with our headquarters based in Philadelphia, and offices in New York, Austin, and Sofia, Bulgaria. Wherever we are in the world, we pride ourselves on being a close-knit, focused team that is welcoming and friendly, and the work that we do is always interesting and rewarding. Wherever we are in the world, we pride ourselves on being a close-knit, focused team that is:

Welcoming and Friendly

We want to reflect the diversity of the cities we serve. By creating an inclusive culture where everyone can thrive, we’ll make Fliff better for employees and customers alike.

Lively and Creative

We respect and value each other’s ideas, experience and expertise. There is no such thing as a bad idea; only ideas that are executed and ideas that are discarded after consideration.

Stimulating and Rewarding

We know bright minds love a challenge, and we understand your desire to see your hard work pay off. We’ll make sure your daily tasks align with your career ambitions as we grow together.