Contract Java Developer C2C Jobs in Overland Park, KS

Title: Sr. Software Engineer

Location: Hybrid-Olathe, KS

Salary: $135K

About PSI

Join Us at PSI - Where You Belong, Grow, and Thrive!

At PSI, we believe that people achieve their best when they feel they truly belong. That’s why fairness and opportunity are at the heart of everything we do - not just words, but values deeply embedded in our culture and the full employee experience.

We’re proud to foster an environment where everyone is supported to reach their full potential. From your first day through every step of your journey with us, you’ll feel the difference in how we work, grow, and succeed together.

What You Can Expect From Us - We know that great work starts with feeling valued. That’s why we’ve benchmarked all our roles against local market rates and why you’ll always see salary details in our job postings. We believe in transparency, and we want you to feel confident that your next move aligns with your expectations.

About the Role

The Senior Software Engineer role at PSI enables the development of new features of the technologies that we provide to our customers. Senior Software Engineers work very closely with others across the engineering teams to understand what has been scoped, develop new features of existing Java/Spring web-based applications with an SQL database, and integrate with internal and third-party systems. This role adds significant value to the operation of PSI’s business, performing crucial work in maintaining our people-focused, quality brand.

This is a full-time permanent role, with flexible hours around core office availability Monday to Friday. The role is performed on a hybrid schedule at our headquarters located at 18000 W 105th St. Olathe, KS 66061, with occasional travel for meetings, events and workshops.

Role Responsibilities

• Manage and execute end-to-end development of key technology applications and platforms using senior level expertise and accountability for projects.
• Provide mentoring and guidance to more junior members of Software Engineering teams.
• Develop enterprise class and scalable web applications.
• Enhance and support existing web application functionality which includes new feature development and resolving complex code issues as reported.
• Collaborate with subject matter experts, product managers and engineers to build modern, scalable, user-friendly, and functionally robust web applications in an AGILE environment.
• Participate in all aspects of SDLC including analysis, requirements, design, implementation, testing and support.
• Ensure quality through strong unit testing.
• Review and analyze feature requirements.
• Create and maintain product knowledge documentation.
• Research and embrace new techniques and technologies.
• Use principles, guidelines and best practices as defined.
• Other duties as assigned.

Knowledge, Skills and Experience Requirements

• US citizenship required due to affiliation with government contracts.
• Bachelor’s degree in Computer Science or related field.
• 8+ years experience in software engineering roles.
• Hands-on experience with modern software development languages and front-end technologies, e.g. Java, JavaScript, Spring Boot, Thymeleaf, Spring MVC, .net, Go, React, Angular, CSS, HTML etc.
• Experience with designing and creating APIs.
• Experience with microservices architecture.
• Experience with accessibility work such as WCAG is a plus.
• Experience with cloud technologies in Azure or AWS.
• Experience with ORM technologies such as Hibernate.
• Experience with relational databases like MSSQL.
• Experience with GIT and JIRA.
• Experience in fault finding and resolving Priority 1 production issues.

Benefits & Culture

Alongside a competitive salary, we offer a comprehensive benefits package designed to support your well-being, your future, and your sense of purpose:  

• Retirement Benefits: 401(k), pension, or country-specific retirement plans with employer contributions
• Generous Time Off: Enhanced paid time off/annual leave policies
• Health & Wellbeing Coverage: Medical insurance tailored to your region, plus:
• US: Dental, vision, life, and short-term disability insurance
• UK: Medical cashback plan including dental, vision, and income protection
• Flexible Spending Accounts (US)
• Employee Assistance Program (EAP): Confidential support whenever you need it
• Work-Life Balance: We understand life happens outside of work, and we fully support flexibility
• Wellness Culture: Regular global wellness initiatives to help you stay healthy and inspired
• Future Planning: Tools and support to help you grow personally and professionally
• Giving Back: Enjoy a Volunteer Day each year and opportunities to support our communities and industry

At PSI, we’re more than just a workplace - we’re a global team driven by shared values and real impact. If you're ready to be part of a company that’s committed to your growth and well-being, we’d love to hear from you.