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.<br><br>Responsibilities:<br>• Deliver complete features across the full stack, from React-based interfaces to Java and Spring Boot services, ensuring solutions are production-ready.<br>• Create and enhance APIs and connected service integrations that support secure, scalable application functionality.<br>• Build intuitive user interface elements that follow established design standards, usability expectations, and accessibility guidelines.<br>• Work closely with cross-functional teammates in iterative sprint cycles to refine requirements, implement solutions, and meet delivery goals.<br>• Strengthen software quality through automated test coverage, continuous integration and deployment practices, and consistent engineering standards.<br>• Improve application health by advancing monitoring, logging, performance tuning, and overall platform reliability.<br>• Review code collaboratively and contribute ideas that improve maintainability, technical quality, and team delivery practices.