Photos people at Fanatics Betting & Gaming
Fanatics Betting & Gaming on cord

Fanatics Betting & Gaming

Staff Mobile Engineer - Kotlin, iCasino - FBG

Remote in UK +1
Gambling
We Are By Fans, For Fans
Active
11 hours ago
Responds to
N/A
Responds in
N/A
Requests
None yet. Be the first one!

Skills & Experience

Job roles: Mobile Developer
Experience level: Lead, Leadership
Tech stack/tooling used: Kotlin, Software Architecture, Mobile Design, Mobile Development
Core skills considered: Kotlin, Software Architecture, Mobile Design, Mobile Development

Logistics

Base salary: £90K - £120K
Employment type: Permanent
Remote working: Remote
Work from: United Kingdom, Ireland
Visa sponsorship: Not available

Job Description

Fanatics Betting and Gaming
Staff Mobile Engineer - Kotlin, iCasino - FBG
United Kingdom
About Us
Fanatics is building a leading global digital sports platform. We ignite the passions of global sports fans and maximize the presence and reach for our hundreds of sports partners globally by offering products and services across Fanatics Commerce, Fanatics Collectibles, and Fanatics Betting&Gaming, allowing sports fans to Buy, Collect, and Bet. Through the Fanatics platform, sports fans can buy licensed fan gear, jerseys, lifestyle and streetwear products, headwear, and hardgoods; collect physical and digital trading cards, sports memorabilia, and other digital assets; and bet as the company builds its Sportsbook and iGaming platform. Fanatics has an established database of over 100 million global sports fans; a global partner network with approximately 900 sports properties, including major national and international professional sports leagues, players associations, teams, colleges, college conferences and retail partners, 2,500 athletes and celebrities, and 200 exclusive athletes; and over 2,000 retail locations, including its Lids retail stores. Our more than 22,000 employees are committed to relentlessly enhancing the fan experience and delighting sports fans globally.

About the Team

Launched in 2021, Fanatics Betting and Gaming is the online and retail sports betting subsidiary of Fanatics, a global digital sports platform. The Fanatics Sportsbook is available to 95% of the addressable online sports bettor market in the U.S. Fanatics Casino is currently available online in Michigan, New Jersey, Pennsylvania and West Virginia. Fanatics Betting and Gaming operates twenty-two retail sports betting locations, including the only sportsbook inside an NFL stadium at Northwest Stadium. Fanatics Betting and Gaming is headquartered in New York with offices in Denver, Leeds and Dublin.

Staff Software Engineer – Mobile (Kotlin / Multiplatform)Overview

As a Staff Software Engineer – Mobile at Fanatics Betting&Gaming (FBG), you are a highly experienced individual contributor and technical leader with deep expertise in Kotlin-based mobile development and a strong track record of shaping mobile architecture at scale. You bring expert-level experience with Kotlin and Jetpack Compose, along with proven ownership or strong experience driving Kotlin Multiplatform Mobile (KMM) and Compose Multiplatform strategies.

You operate as a technical authority and force multiplier, setting direction across teams, influencing architectural decisions, and elevating engineering standards. You thrive in a fast-paced, product-driven environment where your combination of hands-on delivery, strategic thinking, and cross-functional leadership has a measurable impact on both engineering outcomes and customer experience.

You’ll join the Fanatics Casino team, which owns the full iCasino experience across Fanatics platforms—including our standalone Casino App, iCasino within the Fanatics Sportsbook & Casino App, and our Casino Desktop website. Our mission is to build the top online casino in the U.S., with an emphasis on fun, dynamic, and entertainment-first products that resonate with our most valuable customer segment:Spinners.

Our mobile stack is built for speed and scale, powered by modern technologies like Kotlin, Jetpack Compose, Compose Multiplatform, SwiftUI, and KMM. As a Staff Engineer, you will play a key role in evolving this ecosystem—driving cross-platform strategy, platform consistency, and engineering excellence across teams.

Responsibilities

  • Define and evolve the mobile architecture and cross-platform strategy, with a focus on scaling KMM and Compose Multiplatform across the organisation.
  • Lead complex technical design and architectural decisions, balancing speed, scalability, maintainability, and user experience.
  • Build and contribute to shared mobile platforms, libraries, and reusable components, enabling consistency and velocity across teams.
  • Deliver high-impact features and platform improvements hands-on, particularly in Kotlin and Jetpack Compose.
  • Drive adoption of best practices in mobile engineering, including modularisation, state management, testing, and performance optimisation.
  • Partner closely with product managers, designers, and backend engineers to deliver intuitive, high-performance user experiences.
  • Identify and execute on opportunities to reduce technical debt, improve system design, and enable faster iteration across teams.
  • Own and improve developer experience, including tooling, CI/CD pipelines, and release processes.
  • Define and influence mobile observability, performance monitoring, and reliability standards.
  • Play a key role in incident response and on-call practices, helping improve production stability and response effectiveness.
  • Mentor and guide engineers across teams, contributing to a strong culture oftechnical excellence and continuous learning.
  • Influence engineering direction across squads, aligning teams to a cohesive mobile platform vision.
  • Contribute to hiring, onboarding, and raising the technical bar across the organisation.
  • Develop a deep understanding of the iCasino product, customer segments, and how we deliver entertainment-first experiences at scale.
  • Be open to occasional travel to Fanatics offices and events for planning, collaboration, and team-building activities.

Required Qualifications

  • 8+ years of professional software engineering experience, with deep expertise in mobile development and strong Kotlin proficiency.
  • Extensive hands-on experience building production mobile applications using Jetpack Compose.
  • Proven experience with or ownership of Kotlin Multiplatform Mobile (KMM) and/or Compose Multiplatform in real-world environments.
  • Strong understanding of mobile architecture, app lifecycle, state management, and performance optimisation at scale.
  • Demonstrated experience leading technical direction and architectural decisions as a senior individual contributor.
  • Track record of delivering scalable, maintainable systems in complex, fast-moving environments.
  • Strong problem-solving and debugging skills, including production incident ownership and resolution.
  • Ability to influence and collaborate across teams, aligning stakeholders ontechnical strategy and trade-offs.
  • Clear, effective communicator—comfortable engaging with engineers, product managers, and leadership.
  • Experience operating infast-paced, product-driven environmentswith evolving priorities.

Preferred Qualifications

  • Deep experience with Compose Multiplatform and advanced KMM usage in production environments.
  • iOS development experience using Swift and SwiftUI, or strong cross-platform mobile understanding.
  • Experience building or contributing to shared mobile platforms or developer tooling.
  • Strong familiarity with CI/CD pipelines, release automation, and mobile build systems.
  • Experience with observability tooling, performance monitoring, and improving production reliability.
  • Background in high-scale consumer applications, gaming, betting, or entertainment platforms.
  • Experience influencing engineering culture, mentoring engineers, and scaling best practices across teams.
  • Exposure to experimentation, personalisation, or data-driven product development.

Interview Process

  • Exploratory Chat
  • Functional/Pair programming (live)
  • System Design
  • x2 Behavioral

Message prompt from Eamonn Errity

E
What interests you about this role, and what you're looking for in your next move? Where you've used Kotlin, Jetpack Compose and/or KMP in production, and what you owned. A specific example is ideal. How you feel about staying hands-on as an IC rather than moving into people management.
E
Lead Technical Recruiter
Active 11 hours ago
Staff Mobile Engineer - Kotlin, iCasino - FBG at Fanatics Betting & Gaming
Message Eamonn Errity  ·  Position recently posted

Talk directly
to who's hiring

cord intros you to the companies worth joining, from seed to enterprise.

Everything you need to find work

Surface every relevant position, direct message the people hiring and manage all your applications in one place.

Get started

Every position in one place

We index the web for open positions that might be relevant to you and bring them all in one place.

Positions you might like split into tabs based on their type

Direct messaging

No more CV blackholes. Message people hiring directly and see their activity live on cord.

A sent message to a hiring manager
A board of positions in different stages

Application management

Manage all your applications and interviews in one place.

Advanced insights

Know your worth and see how you compare with other applicants.

Visualisation of a profile match score for a position and score comparison with other applicants

Direct.
Transparent.
Human.

On cord you can message people hiring directly, see when they were last active, how responsive they are and access transparent information that you wouldn't be able to find anywhere else.

Photos people at Starling BankPhotos people at Starling BankPhotos people at Starling BankPhotos people at Starling BankPhotos people at Starling Bank
Starling Bank on cord

Starling Bank

Full Stack Engineer (ML Ops)

London, UK
FinTech · Banking · Finance
A better bank for everyone
Active
over 6 months ago
Responds to
0% of requests
Responds in
1h 55m
Requests
7 pending

Skills & Experience

Job roles: Full Stack
Experience level: Mid, Senior
Core skills considered: Java, React, Redux, AWS, JavaScript

Logistics

Base salary: £70K - £110K
Employment type: Permanent
Remote working: Hybrid (up to 2 remote days p/w)
Visa sponsorship: Not available

Job Description

Starling is the UK’s first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. All at the tap of a phone, all the time.

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way.

We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices.

Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. We don't like to mandate how much you visit the office and work from home, that's to be agreed upon between you and your manager.

Our Data Environment

Our Data teams are excited about the value of data within the business, powers our product decisions to improve things for our customers and enhance effective and agile decision making, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech.

We are looking for talented data professionals at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write and the contribution they make to Starling. People with a broad ability to apply themselves to a multitude of problems and challenges, who can work across teams do great things here at Starling, to continue changing banking for good.

Requirements

We have built our entire banking platform in house and mostly in Java. We are looking for people who want to work on building the tooling that is used by our engineers on a daily basis.

We are looking for people who are truly full stack, and are as comfortable polishing their javascript front end as they are debugging the innards of their java applications database interactions, or standing up infrastructure with terraform. We are looking for people who can:

  • Design REST apis.
  • Code backend services, ideally using Java, or another other server side compiled language.
  • Develop modern front ends, ideally using React and Redux.
  • Get their code into the cloud and support it there, ideally on AWS.
  • Believe in clean coding, simple solutions, automated testing and continuous deployment.
  • Like to take ownership of a feature from the original idea through to live.
  • Think (like us) that a small number of empowered developers is the right way to deliver software.

Company Benefits

  • 33 days holiday (including flexible bank holidays)
  • An extra day’s holiday for your birthday
  • 16 hours paid volunteering time a year
  • Part-time and/or flexible hours available for most roles
  • Salary sacrifice, company enhanced pension scheme
  • Life insurance at 4x your salary
  • Hybrid/remote working
  • Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton
  • Generous family-friendly policies
  • Varied social groups set up and run by our employees
  • Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks
  • Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing

Full details are available on our careers site

Interview Process

Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team:

  • Stage 1 - 30 mins with one of the team
  • Stage 2 - Take home challenge
  • Stage 3 - 90 mins technical interview with two team members
  • Stage 3 - 45 min final with an executive and a member of the people team
Alex Yeates on cord
Message Alex Yeates at Starling Bank
Typically responds in an hour

What people are saying

2,000+

users joining every week

Oliver on cord

Oliver

Software Engineering Consultant
It's really easy to use, has a solid selection of jobs, and makes it helpful to direct message companies. The platform seems to offer a good range of opportunities while keeping the process simple and convenient.
November, 2025
David on cord

David

Lead Software Engineer
The platform allows you to create a professional CV, making the setup process simple and polished. The internal chat also provides an easy way to directly contact hiring companies, which makes communication much more efficient.
November, 2025
40,000+

open positions

Nicolae on cord

Nicolae

Senior Full Stack Developer
It is a great platform if you are looking for a job. It makes the search process straight forward and gives you access to solid opportunities.
November, 2025
3 million+

messages exchanged so far

Nicolae on cord

Nicolae

Senior Full Stack Developer
It is a great platform if you are looking for a job. It makes the search process straight forward and gives you access to solid opportunities.
November, 2025
82.86%

response rate from companies

Aarambha on cord

Aarambha

Associate Software Engineer
Absolutely amazing idea, the ability to see which recruiters are active makes finding opportunities very quick. There is a form of transparency built into the website that lacks in any other job searching platform.
August, 2025
Adam on cord

Adam

Senior Engineer
cord was great. Clean UI, easy to browse, and the data feature made it a breeze to quickly check whether my profile would match up well with a particular role. The messaging system made it easy to approach companies but also filter out unwanted requests.
August, 2025
4.6

score on Trustpilot

Talk directly to the people that matter

Join the hundred of thousands of people using cord to find work

Get started
 on cord
 on cord
 on cord
 on cord
 on cord
+418 joined last week
Moved to your Not right positions