OneMain Financial Jobs

Description We are looking for a Senior Software Engineer to join a Financial Services team in Appleton, Wisconsin. This Long-term Contract position is suited for a senior full stack developer who enjoys building engaging digital experiences and reliable backend services in a high-quality enterprise setting. The role focuses on delivering customer- and advisor-facing solutions across modern web applications while partnering closely with product, design, and engineering stakeholders.

Responsibilities:

• Deliver complete features across the full stack, from React-based interfaces to Java and Spring Boot services, ensuring solutions are production-ready.

• Create and enhance APIs and connected service integrations that support secure, scalable application functionality.

• Build intuitive user interface elements that follow established design standards, usability expectations, and accessibility guidelines.

• Work closely with cross-functional teammates in iterative sprint cycles to refine requirements, implement solutions, and meet delivery goals.

• Strengthen software quality through automated test coverage, continuous integration and deployment practices, and consistent engineering standards.

• Improve application health by advancing monitoring, logging, performance tuning, and overall platform reliability.

• Review code collaboratively and contribute ideas that improve maintainability, technical quality, and team delivery practices. Requirements • At least 7 years of software engineering experience with recent ownership of full stack application delivery.

• Strong hands-on expertise with React.js and modern JavaScript or TypeScript development.

• Solid backend development experience using Java and Spring Boot in enterprise environments.

• Proven ability to move work from business requirements through deployment with minimal day-to-day supervision.

• Experience building reusable component-based front-end architectures and managing application state effectively.

• Familiarity with automated testing practices for front-end and back-end applications.

• Experience working with API integrations and event-driven or distributed systems, including technologies such as Apache Kafka. Technology Doesn't Change the World, People Do.®

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