Fanatics

Senior Software Engineer, Full Stack (FES)

Fanatics$121K — $200K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of software engineering expertise with production systems
  • Proficient in Go (Golang) with experience in concurrency patterns and performance tuning
  • Skilled in designing and scaling backend services and APIs in microservices architecture
  • Experienced with JavaScript/TypeScript and React or similar frameworks
  • Knowledge of data management technologies including relational and NoSQL databases
  • Familiarity with cloud services (AWS, GCP, Azure) and CI/CD practices
  • Strong problem-solving skills especially in debugging production issues

Responsibilities

  • Design and implement high-quality Go services and APIs
  • Lead technical design for major features, guiding development from concept to completion
  • Translate vague challenges into actionable tasks for the team
  • Conduct and contribute to design reviews, offering constructive feedback
  • Uphold high standards during code reviews for quality and safety
  • Mentor junior engineers and onboard new team members
  • Enhance system reliability and performance while tracking operational metrics

Benefits

  • Comprehensive benefits package with emphasis on employee well-being
  • Opportunities for personal growth through mentorship programs
  • Engaging work environment that supports a creative culture
  • Participation in cultural immersion events that enhance team connections
  • Flexible work arrangements to support work-life balance
Full Job Description
About the Team

Every time a fan places a bet, earns a reward, or checks out on Fanatics - Fanatics Core made that possible. We build the shared foundations - identity, payments, loyalty, wallet, data, and platform - that power sports betting, ecommerce, collectibles, and beyond. We supercharge the business by providing products and capabilities so that teams can focus on what matters most: building delightful experiences for the fans.

Fanatics is uniquely positioned at the intersection of sports commerce, betting, and collectibles, and Fanatics ONE is the loyalty and identity program that ties it all together. As part of the Loyalty SDK team at Fanatics, we build the technology that powers how fans see and interact with FanCash across the entire company. Our SDKs and services sit at the heart of the customer journey, enabling every brand and product team to deliver consistent and seamless loyalty experiences.

Overview

As a Senior Software Engineer at Fanatics, you will design, build, and operate the platforms and services that power the Fan Ecosystem - the systems that connect fans to every Fanatics product and experience. You will own significant technical surface area end to end, set the technical direction for projects that span multiple services and teams, and raise the engineering bar for those around you through mentorship, design leadership, and hands-on delivery.

This is a hands-on, full-stack role with a backend center of gravity. The majority of your work will be building high-throughput, high-availability services in Go, with meaningful contributions to the TypeScript/React front ends those services support.

Responsibilities
  • Design, build, test, document, and operate high-quality, production-grade software with a focus on Go services and APIs
  • Own the technical design of medium-to-large features and systems: define the approach, weigh trade-offs, document decisions, and drive them to completion
  • Break down ambiguous problems into well-scoped, deliverable work for yourself and other engineers on the team
  • Lead and participate in design and architecture reviews; provide clear, constructive feedback that improves both the design and the designer
  • Set the standard in code reviews - for correctness, readability, testability, and operational safety
  • Mentor and grow engineers on the team; onboard new hires and act as a technical point of contact for your systems
  • Participate in and improve the on-call rotation: instrument your services, drive incident response, and lead blameless postmortems that result in real fixes
  • Improve reliability, performance, and cost of the systems you own; define and act on SLOs and operational excellence metrics
  • Identify and pay down technical debt, and make the case for the investments worth making
  • Partner closely with product managers, designers, and stakeholders to shape the roadmap and make technology decisions that grow the business
  • Influence and help define the principles, guidelines, and best practices of our engineering strategy - then hold the team to them
  • Develop deep understanding of our industry, product, feature set, and roadmap, and use it to make better technical decisions

Required Qualifications
  • 5+ years of professional software engineering experience building and operating production systems
  • Strong, demonstrated proficiency in Go (Golang) - required. You have built and shipped production services in Go and can speak to concurrency patterns, error handling, testing, profiling, and performance tuning in the language
  • Proven experience designing, building, and scaling backend services and APIs (REST and/or gRPC) in a distributed, microservices environment
  • Demonstrated proficiency in JavaScript or TypeScript, and experience with React or another modern front-end framework
  • Solid grounding in data stores and messaging: relational and/or NoSQL databases, caching, and event streaming (e.g. Kafka, SQS/SNS)
  • Experience with cloud infrastructure (AWS, GCP, or Azure), containers, CI/CD, and infrastructure-as-code
  • Strong operational instincts: observability, monitoring, alerting, debugging production issues under pressure
  • Track record of leading projects with multiple contributors and delivering them on time without sacrificing quality
  • Familiar with Agile software product delivery and SCRUM methodology
  • Able to effectively work cross-functionally within an enterprise environment

Preferred Qualifications
  • Experience building or integrating with identity and access management systems - authentication, authorization, SSO, and account lifecycle
  • Hands-on familiarity with identity standards and protocols: OAuth 2.0, OpenID Connect, SAML, JWT, MFA, session and token lifecycle management
  • Experience with identity providers and CIAM platforms (e.g. Okta, Auth0, ForgeRock, AWS Cognito, Ping) or with building an in-house identity platform
  • Experience with account security, fraud prevention, PII handling, or regulatory/compliance-driven engineering (KYC, GDPR, CCPA)
  • Experience designing systems that serve high-traffic, consumer-facing products with spiky, event-driven load
  • Experience with platform or shared-services work where your consumers are other engineering teams
  • Experience working in a start-up environment
  • Experience in sports, commerce, media, or another consumer-scale domain

If you possess some of these qualifications but not all of them, we still encourage you to apply!

Depending on the role, your interview and onboarding experience may include in-person components, such as onsite interviews or Launching into Better: LIVE-a multi-day cultural immersion in New York City for full-time, non-seasonal hires. These sessions are designed to build connection and bring our culture to life, though specific travel and participation requirements will be confirmed based on your role and location. Your recruiter will provide clear guidance at each stage of the process.

For information about our benefits, please visit https://benefitsatfanatics.com/

Ranges will change based on country and state of residence, which are reflected in Geographical Zones defined by Fanatics Betting and Gaming. The range incorporates all of our Geographical Compensation Zones and is subject to change as the Zone associated with the actual offer is confirmed. In addition to the base and bonus, full-time employment, and more. For information about our benefits, please visit https://benefitsatfanatics.com/

Salary Range

$121,600-$200,000 USD

By submitting your application, you agree to our terms of service and acknowledge you have read our Candidate Privacy Policy.

About Fanatics

Fanatics is a leading retailer of licensed sports merchandise. The company was founded in 1995 and has grown to become the largest online retailer of officially licensed sports merchandise in the world. Fanatics offers a wide range of products, including jerseys, hats, and other apparel, as well as collectibles and memorabilia. The company has partnerships with all major sports leagues and teams, as well as with individual athletes. Fanatics is committed to providing a seamless shopping experience for its customers and has invested heavily in technology and logistics to ensure fast and reliable delivery.
Learn more about Fanatics
Size
5,000 employees
Industry
Founded
1995

Similar Jobs

More Jobs at Fanatics

More Information Technology Jobs

Find similar Senior Software Engineer, Full Stack (FES) jobs: