Staff Engineer, Client Services — Kotlin & Mobile

Fanatics Betting & Gaming; United States; Remote; USD 130,000 - 180,000; Full time

Job summary

Fanatics Betting & Gaming is seeking a Staff Engineer, Client Services to lead the technical development of major product features in the Fanatics Sportsbook app. You will own code quality, architecture, and end‑to‑end delivery across multiple client‑facing teams, mentoring engineers and setting engineering standards.

You will drive observability, reliability, and performance, using Kotlin or Java, Spring Boot, and modern backend patterns in a fast‑growing environment with travel to Fanatics

Qualifications

• 7+ years of experience designing and building highly scalable backend services.
• Expertise with Kotlin as the primary development language, OR deep knowledge of Java with a strong willingness to transition to and develop primarily in Kotlin.
• Proven experience with Spring Boot or similar backend frameworks.
• Experience with Coroutines and Dependency Injection.
• Team-first mentality, with a willingness to do what it takes to get the job done and a desire to strive for better.
• Able to effectively communicate complex technical subjects to a variety of audiences (engineers, technical leaders, marketing and operations teams, non-technical functional leaders).
• Familiar with Agile software product delivery and SCRUM methodology.
• Bachelor’s degree, or professional certification, or a combination of education and experience

Responsibilities

• Lead the planning, design, and technical development of major product features, from inception through deployment, ensuring alignment with overall platform strategy.
• Own and drive technical excellence, including defining and scaling best practices in code quality, system design, and testing across the Client Services domain and peer teams.
• Conduct exceptionally thorough and constructive technical design and code reviews to maintain the highest bar for quality, reliability, and security.
• Mentor and empower engineers across multiple teams, fostering a culture of technical ownership, innovation, and continuous improvement.
• Help your team define and adhere to the principles, guidelines, and best practices of our engineering strategy and actively drive adoption across related client teams.
• Lead end‑to‑end delivery of multi‑team projects, coordinating across engineering, product, and design. Effectively represent the team’s plans, updates, and technical decisions in cross‑functional planning and review forums.
• Define and lead the testing strategy for complex client‑side features and systems, promoting a culture of quality and ensuring systems are testable by design.
• Guide teams in operational best practices, actively raising the bar for observability, reliability, and system resilience. Design, stress‑test, and refine systems for maintainability.
• Improve the team’s processes and response rhythms for handling high‑pressure situations, scope changes, or production incidents, fostering an environment of composure and continuous learning.
• Develop, test, document, and deploy high quality software into production.
• Develop a fundamental understanding of our industry, product, feature set and roadmap.
• Work closely with our product team, design, and other internal stakeholders to make technology decisions that grow and improve our products.
• Participate in an on‑call rotation to address urgent issues outside business hours and contribute to app enhancements and operational efficiency (OE) by troubleshooting and resolving application‑related problems.
• Escalate when tasks or projects hit roadblocks.
• Be open to occasional travel to Fanatics offices and other locations for conferences, events, meetings, and team‑building activities.

Skills

Kotlin

Java

Spring Boot

Coroutines

Dependency Injection

Agile

SCRUM

Communication

Cross-functional collaboration

Education

Bachelor's degree

Tools

AWS

GCP

CI/CD

Observability tools

Akka/Pekko

Job description

Fanatics Betting & Gaming is seeking a Staff Engineer, Client Services to lead the technical development of major product features in the Fanatics Sportsbook app. You will own code quality, architecture, and end‑to‑end delivery across multiple client‑facing teams, mentoring engineers and setting engineering standards.

You will drive observability, reliability, and performance, using Kotlin or Java, Spring Boot, and modern backend patterns in a fast‑growing environment with travel to Fanatics