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Jobs / Flutter (FanDuel) / Senior Software Engineer – Back End
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Posted 2026-05-28

Senior Software Engineer – Back End

Description

We’re looking for a Senior Software Engineer for one of our Core Marketing Platforms teams, working with a multitude of microservices achieving various goals for our marketing partners such as real-time communications or promotions. Your work will focus on highly efficient systems dealing with large volumes of real time data, delivered to various systems to enable targeted marketing. Take the long-term view and consider what volumes our systems can handle today, vs 3 years from now. Make existing systems simpler (e.g. by consolidating redundant systems, deleting unnecessary code, or removing/updating out of date documentation). Coaching and developing other software engineers' technical skills. Lead projects with a holistic view of the strategic direction of the vertical. Defining the architecture of the future, enabling our systems to utilize modern technologies to their fullest whilst achieving our goals, while ensuring that it is balanced with enough time to focus on operationally improving our existing systems. Solve complex problems, seeking input and guidance from team members Take defined design and turn it into code and deliver it on schedule, applying appropriate technologies and current software engineering best practices. Write secure, stable, testable, maintainable code with minimal defects Participate in team design, scoping and prioritization discussions Work effectively with other team members & identify any opportunities/problems arising from technical decisions. In addition to the specific responsibilities outlined above, employees may be required to perform other such duties as assigned by the Company. This ensures operational flexibility and allows the Company to meet evolving business needs.

Responsibilities
  • Own parts of product and technology & strive to become a subject matter expert
  • Write simple and extendable code following standards and best practices.
  • Test your code thoroughly, balancing customer and team requirements.
  • Help your team evolve by actively participating in the code review process, design discussions, team planning and support ticket reviews
  • Take on projects and make software enhancements that improve team software and processes
  • Work to resolve the root cause of complicated problems, leaving software better than you found it
  • Actively help others leverage your expertise through coaching and mentoring.
  • Understand proper data storage, classification, optimization techniques.
  • Estimate stories/tasks and deliver them on time.
  • Keep yourself up to date with market standards, open-source frameworks, and other industry tools.
  • Understand the maintenance characteristics, run-time properties, and dependencies of your team's software, including hardware platform, operating system and build dependencies.
  • Participate in the on-call support rotation for your organization.
  • Contribute to the professional development of colleagues, improving their technical knowledge and the engineering practices.
  • Clearly document your software to ensure that future generations of developers understand the intention behind the features and components you build.
  • In the event of a problem, you can troubleshoot and thoroughly resolve defects.
  • Be humble, pragmatic, self-managed, thirsty for knowledge, never satisfied and always challenge the norm.
  • Be responsible for the state of the code you both inherit and produce.
Requirements
  • Degree in Computer Science or related software engineering field, or equivalent practical experience.
  • Strong backend experience with Java and Microservice Architecture
  • Experience with AWS as well as understanding DevOps concepts such as IaC (we use Terraform)
  • Experience with AWS events and serverless, such as SNS/SQS or Kafka, Step Functions, and Lambdas.
  • Good grasp on relational, non-relational databases, messaging queues and handling concurrency.
  • Experience working with high volume systems.
  • Understanding of modern architectures, design patterns, and platform nuances.
  • Strong experience working with cloud-based infrastructure and technologies, preferably AWS.
  • Understating of containers (e.g., Docker), and orchestration (Kubernetes).
  • Expert experience with testing concepts, test tools, and integrating testing and best practices in the SDLC.
  • Strong sense of ownership, urgency, and drive.
  • Familiarity working in an Agile environment.
  • Passion for working within a fast-paced environment and can adapt to change.
Benefits
  • Medical, vision, and dental insurance
  • Life insurance
  • Disability insurance
  • A 401(k) matching program
  • Short-term or long-term incentive compensation, including, but not limited to, cash bonuses and stock program participation.
  • Paid personal time off
  • 14 paid company holidays
  • Paid sick time in accordance with all applicable state and federal laws.
About Flutter (FanDuel)

FanDuel Group is an innovative sports-tech entertainment company that is changing the way consumers engage with their favorite sports, teams, and leagues. The premier gaming destination in the North America, FanDuel Group consists of a portfolio of leading brands across gaming, sports betting, daily fantasy sports, advance-deposit wagering, and TV/media, including FanDuel, Stardust Casino and TVG. 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).

Read more about Flutter (FanDuel) →

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