Staff Engineer, Balance & Ledger (Core) – NYC

Fanatics Inc.; New York (NY); On-site; USD 190,000 - 238,000; Full time

Job summary

Fanatics Inc. in New York, NY is seeking a Staff Engineer to own the Balance and Ledger services. You will design a shared ledger, enforce correct funds usage, and guide migrations across teams in a regulated gaming and betting ecosystem.

You will lead architectural decisions, work with Payments, Fraud, Finance, Legal and Compliance, and mentor engineers while ensuring auditability and reliability across Fanatics platforms.

Qualifications

• 8+ years of professional software engineering experience focusing on Java and Spring Boot.
• Experience designing and operating a ledger, wallet, or balance service with strict correctness and auditability.
• Strong command of transactional consistency, idempotency, concurrency control, and relational data modeling.
• Experience building event-driven systems and using Kafka.
• Demonstrated success setting technical direction across multiple teams.
• Experience migrating live, high-traffic systems with minimal customer impact.
• Ability to explain complex tradeoffs to engineering, product, finance and leadership.
• Comfort in a fast-paced, regulated environment with changing priorities.

Responsibilities

• Own the architecture of the ledger and balance services, data model, and interfaces for read and spend authorization.
• Design and build distributed Java/Spring Boot services handling high transaction volume with correctness and auditability.
• Model funds by type and eligibility to enforce usage rules and regulatory restrictions.
• Lead the migration of wallets onto the shared ledger with phased rollout and rollback plans.
• Architect event-driven integration ensuring ordering and reliable delivery to downstream systems.

Skills

Java

Spring Boot

Ledger

Balance service

Event-driven

Kafka

Architecture

Technical leadership

Tools

AWS

Kubernetes

Observability tools

Job description

Fanatics Inc. in New York, NY is seeking a Staff Engineer to own the Balance and Ledger services. You will design a shared ledger, enforce correct funds usage, and guide migrations across teams in a regulated gaming and betting ecosystem.

You will lead architectural decisions, work with Payments, Fraud, Finance, Legal and Compliance, and mentor engineers while ensuring auditability and reliability across Fanatics platforms.