Flex

Flex provides comprehensive design, engineering, manufacturing, and supply chain solutions for a wide range of industries, specializing in the creation of intelligent products that enhance connectivity and streamline product lifecycles from conception ...

Construction & Engineering

Industrials

100K+ (172648)

Founded 1969

5 open positions

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Senior Software Engineer, Backend Money Team

5 days, 14 hours ago

United States

Full-time

Senior

Software Engineer

Software Development

AWS Datadog Docker DynamoDB Git GitHub Actions Gradle Java JUnit Kubernetes Microservices MySQL PostgreSQL REST API Spring Spring Boot

Apply Now

Flex

Construction & Engineering

100K+

Founded 1969

View All Jobs 5

Description

Design, build, and scale backend services and APIs for payments, money movement, billing, settlements, reconciliation, and ledger systems.
Drive end-to-end delivery of high-impact initiatives from requirements gathering and technical design through implementation, rollout, and operational excellence.
Partner with Product, Finance, Risk, Compliance, Operations, and engineering teams to deliver scalable and compliant payment experiences.
Build systems that integrate with external payment processors, banking partners, card networks, and financial service providers.
Design resilient payment, ledger, settlement, and reconciliation workflows that maintain financial accuracy.
Operate mission-critical financial services in production with strict uptime, security, compliance, and performance requirements.
Contribute to the evolution of the company’s service-oriented architecture, event-driven systems, APIs, message queues, and financial platforms.
Provide technical leadership across multiple teams on mission-critical financial infrastructure.

Requirements

5+ years of professional software engineering experience with a focus on Java backend development.
Experience with Spring Core/Web/Boot, Gradle, JUnit, and JVM tuning and performance.
Strong computer science fundamentals and experience designing scalable, distributed systems.
Experience integrating with payment processors, settlement systems, card networks, and banking partners.
Strong understanding of transactional systems, data consistency, idempotency, auditability, and fault tolerance in distributed environments.
Ability to write high-quality, testable, maintainable, and secure code.
Hands-on experience with AWS, including EKS, Aurora RDS, ElastiCache, and DynamoDB.
Experience with containerization tools such as Docker and Kubernetes, and with MySQL, PostgreSQL, and DynamoDB.
Proficiency with CI/CD pipelines, git, and build automation; GitHub Actions preferred.
Familiarity with observability and monitoring tools such as DataDog.
Excellent communication skills and experience collaborating with both technical and non-technical stakeholders, including globally distributed teams.

Benefits

Competitive salary with location-based pay ranges from $146,200 to $215,000 USD.
Competitive medical, dental, and vision coverage for full-time U.S. employees.
Company equity.
401(k) plan with company match.
Unlimited paid time off plus 13 company-paid holidays.
Parental leave.
Free Flex subscription.
Unlimited PTO for full-time non-U.S. employees.

Interested in this position?

Apply directly on the company website

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