Senior Software Engineer – iOS

Edinburgh / Hybrid Software Engineering

THE POSITION

Our roster has an opening with your name on it

We're looking for a Senior Software Engineer (iOS / React Native) to join our Sportsbook engineering team. You'll be working on foundational engineering, focusing on improving the underlying frameworks, tooling, and performance that enable FanDuel to deliver an exciting and innovative customer experience.

Working with our React Native Sportsbook application, you'll build and optimize select native iOS components while also enhancing the core React Native codebase to improve performance and scalability.

We're looking for skilled engineers who are empathetic communicators with a commitment to continuous improvement and engineering excellence. The ideal candidate will have experience with both React Native and native iOS development, able to propose pragmatic solutions for performance optimization, work collaboratively within our technical vision, and contribute to our culture of continuous learning. As a member of this team, you will strengthen the foundations of our mobile platform, enabling FanDuel engineers to deliver features more effectively while maintaining platform quality and best practices.

We are a growth company so there are plenty of opportunities for you to learn & grow with us.

Some of your responsibilities will include:

  • Developing and maintaining native iOS components to support computationally intensive or performance-critical features
  • Enhancing the core React Native codebase for the Sportsbook app, focusing on performance, scalability, and maintainability
  • Profiling and optimizing app startup and runtime performance across both React Native and native layers
  • Breaking down engineering work into incremental, testable deliveries aligned with team priorities
  • Supporting continuous improvement initiatives that raise quality and developer effectiveness within the domain
  • Joining our on-call rota, sharing out of hours support duties as part of our incident response process

What We're Looking For

  • Significant experience delivering production React Native applications
  • Proficiency in iOS development with Swift, including bridging React Native with native modules
  • Knowledge of mobile performance profiling and optimization techniques (startup time, rendering, memory, etc.) especially on the native side
  • Familiarity with mobile development best practices, testing, and CI/CD pipelines
  • Experience working in Agile teams and contributing to collaborative technical standards
  • A quality-focused mindset with strong problem-solving skills and the ability to evaluate trade-offs

Additionally, our Senior Engineers are able to:

  • Contribute meaningfully to technical design discussions and propose pragmatic solutions
  • Take ownership of delivering performance improvements and shared components end to end
  • Mentor and support other engineers in bridging/native usage and performance considerations
  • Participate in wider engineering community initiatives and help spread best practices

 

PLAYER BENEFITS
We treat our team right
 
From our many opportunities for professional development to our generous insurance and paid leave policies, we’re committed to making sure our employees get as much out of FanDuel as we ask them to give. Competitive compensation is just the beginning. As part of our team, you can expect:

  • An exciting and fun environment committed to driving real growth
  • Opportunities to build really cool products that fans love
  • Career and professional development resources to help you refine your game plan for owning and driving your career and development
  • Be well, save well and live well - with FanDuel Total Rewards your benefits are one highlight reel after another

 

ABOUT FANDUEL

FanDuel Group is the premier mobile gaming company in the United States and Canada. FanDuel Group consists of a portfolio of leading brands across mobile wagering including: America’s #1 Sportsbook, FanDuel Sportsbook; its leading iGaming platform, FanDuel Casino; the industry’s unquestioned leader in horse racing and advance-deposit wagering, FanDuel Racing; and its daily fantasy sports product.  

In addition, FanDuel Group operates FanDuel TV, its broadly distributed linear cable television network and FanDuel TV+, its leading direct-to-consumer OTT platform. FanDuel Group has a presence across all 50 states, Canada, and Puerto Rico.

The company is based in New York with US offices in Los Angeles, Atlanta, and Jersey City, as well as global offices in Canada and Scotland. The company’s affiliates have offices worldwide, including in Ireland, Portugal, Romania, and Australia.

FanDuel Group is a subsidiary of Flutter Entertainment, the world's largest sports betting and gaming operator with a portfolio of globally recognized brands and traded on the New York Stock Exchange (NYSE: FLUT).

Diversity, Equity and Inclusion

FanDuel is an equal opportunities employer. Diversity and inclusion in FanDuel means that we respect and value everyone as individuals. We don't tolerate bias, judgement or harassment. Our focus is on developing employees so that they reach their full potential.

FanDuel is committed to providing reasonable accommodations for qualified individuals with disabilities. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please email [email protected].

The requirements listed in our job descriptions are guidelines, not hard and fast rules. You don’t have to satisfy every requirement or meet every qualification listed. If your skills are transferable and you are in the ballpark experience-wise, we'd love to speak to you!

Apply for this position

Technology

Engineering, IT, Cybersecurity, Data, Cloud, AI

We’re the backbone and the turbo engine behind FanDuel’s rise—and we don’t just build software, we build the future. Step into our world and you’ll find a frontier-style playground where top-tier talent tackles complex challenges head-on.

From crafting innovative tech to scaling a platform that’s fast, secure, and rock-solid, we’re doing it all in one of the most regulated—and exciting—markets out there. Every day brings something new, and we wouldn’t have it any other way.

Corporate Strategy

business strategy, operations, automation

Think of us as FanDuel’s internal special ops team—part strategy, part execution, all impact. We partner with leadership to launch bold new initiatives, untangle complex cross-functional puzzles, and jump in wherever extra brainpower or fresh skills are needed.

Our secret weapon? We get to do all this in the world of sports and gaming—stuff we (and millions of fans) live and breathe every day. It’s work, but it sure doesn’t feel like it.

Risk & Trading

sports trading, innovation, Data science

We’re the brains behind the odds—the Risk & Trading team that keeps FanDuel sharp, smart, and always one step ahead. Using cutting-edge models and real-time insights, we price markets with precision and manage risk like pros, all while staying locked into the rules of every jurisdiction we play in.

But we don’t just crunch numbers—we shape strategy. Collaborating across the business, we help power bold moves and smooth experiences that keep our customers coming back for more. Bottom line: if it affects the odds, we’re all over it.

Product

Product Management, Design, Data, Research

We dream it, design it, and deliver it—we’re the team behind the experiences customers can’t get enough of. From deep-dive research to sleek app features and wow-worthy retail moments, we turn insights into action and ideas into magic.

Packed with talent—Product Managers, Designers, Researchers, Data Scientists, and Analysts—we’re a powerhouse squad that partners with Marketing, Engineering, and Commercial to launch what’s next and level up what’s now. If it delights our customers, we’re all over it.

People

Human resources, Talent Acquisition, Early Careers, Talent Development, Inclusion, Compensation

We’re not your typical HR team—we’re the FanDuel People Team, and we bring the vibes. Sure, we handle the essentials like hiring, growth, pay, perks, and inclusion—but that’s just our warm-up act. We’re the crew behind the career-launching programs, can’t-miss events, and culture that keeps FanDuel buzzing.

From day one to day “let’s level up,” we’ve got your back—making sure your experience here is nothing short of legendary. Unparalleled? Check. Unrivaled? Always. Unforgettable? You better believe it.

External Affairs & Partnerships

Communications, Events, Government Affairs, Responsible Gaming

We’re the market-makers, bridge-builders, and big-picture thinkers. The Partnerships & External Affairs team is all about expanding FanDuel’s world—smartly, sustainably, and with serious swagger. From navigating the halls of government to shaping public perception, we run point on the programs that protect and grow our playing field.

We’re also in the business of bold connections—teaming up with partners and stakeholders to spot the next big opportunity and turn it into game-changing growth. If it helps FanDuel stretch, scale, and shine, we’re already on it.

Marketing

Strategy, Creative, Production, Media

If it grabs attention, sparks emotion, or makes fans say “wow”—that’s us. From bold brand moves to scroll-stopping content, performance magic to product promos, we bring FanDuel to life through storytelling that hits hard and sticks. You’ll spot our work everywhere—on your feed, during the big game, and lighting up the jumbotron at your favorite stadium.

We don’t just show up—we show off. Because making every moment more means putting ourselves out there. And let’s be real… we crush it.

Legal & Compliance

Legal, Compliance, Risk

We’re the powerhouse team behind the rules, the relationships, and the rocket fuel for FanDuel’s growth. From legal advice to lobbying, compliance to cutting-edge partnerships—we cover it all. Our crew of sharp attorneys, savvy policy pros, eagle-eyed analysts, and deal-makers brings serious expertise and even bigger energy.

In a world full of regulations, we keep FanDuel ahead of the game—building smart, sustainable strategies that unlock growth while playing by (and sometimes helping shape) the rules. Whether it’s gaming, sports, media, or tech, we know how to partner up and power forward.

Finance & Facilities

Accounting, Finance, Procurement, Workspace

Our Finance team is where strategy meets spark. We don’t just crunch numbers—we power big ideas. With sharp analysis, smart planning, and a healthy respect for risk, we fine-tune business operations to fuel what’s next. Growth? We’re already forecasting it.

Meanwhile, our Facilities team keeps FanDuel running in style. From scouting new spaces to building out sleek, modern offices, we create safe, top-tier environments that match our ambition. As a global crew, we make sure every location—whether home base or a pit stop—is a winning experience for employees on the move.

Customer Ops

Customer Support, CX, VIP, Payments & Fraud

We’re the front line, the fixers, and the fan advocates—all rolled into one. Around the clock, we’ve got our fans’ backs—answering questions, solving problems, and turning feedback into fuel for better products. We keep the play going and the good vibes flowing, while making sure our insights shape smarter marketing and sharper product experiences. In a fast-moving industry, we’re here to simplify, streamline, and smooth out the bumps—so fans can spend less time stuck and more time doing what they love: playing.

Commercial

Retail, Operations, Sportsbook

We’re the engine room that keeps FanDuel firing on all cylinders. Our mission? Make sure every project, plan, and play are driving toward a shared goal: serving our customers and hitting the business bullseye. We’re the glue behind the scenes—running fantasy contests, tracking performance, and sniffing out new opportunities like pros. With deep sports and casino know-how, a sharp eye for process upgrades, and commercial instincts to match, we balance today’s wins with tomorrow’s big plays. All while keeping the customer at the heart of the game.

Broadcast

FanDuel TV

Here, TV isn’t just TV—it’s our 24/7 hype machine. We call it “Transactional TV,” and it’s our secret sauce. Sure, horse racing is the star of the show, but we’re always sneaking in shoutouts to our other verticals during live, nationally aired broadcasts. We mix the thrill of the race with smart promos, playful retention tactics, and ways to help our fans win bigger and better. The result? We’re not just in the race—we’re leading the pack in betting.