Sr. Software Engineer (.NET)

PSI Services LLC; Olathe, Northern (KS, KY); On-site; USD 100,000 - 140,000; Full time

Benefits offered by this job

Retirement benefits

Generous time off

Health & wellbeing coverage

US FSAs

EAP

Work-life balance

Wellness programs

Career growth

Volunteer days

Job summary

PSI Services LLC in Kansas is seeking a Senior Software Engineer to drive development of new features for our .NET web applications, with a SQL database and integrations to internal and third-party systems. You will work closely with engineering teams to translate scope into robust software on a hybrid schedule at our Olathe headquarters.

The role emphasizes mentoring junior engineers, delivering enterprise-class web applications, and contributing across the full SDLC in an AGILE environment,

Qualifications

• US citizenship is required due to government contracts.
• Bachelor's degree in Computer Science or related field.
• 8+ years of software engineering experience across web stacks.
• Hands-on with .NET, C#, modern frontend techs, APIs and microservices.
• Experience with Azure or AWS and MSSQL databases.

Responsibilities

• Develop enterprise web applications with scalable architecture.
• Mentor junior engineers and collaborate across agile teams.
• Design and implement APIs and microservices.
• Contribute to all SDLC phases and ensure quality with unit tests.

Skills

US citizenship required

8+ years experience

Mentoring

AGILE environment

Team collaboration

Education

Bachelor's degree in Computer Science or related field

Tools

.NET

C#

node.js

Go

React

Angular

CSS

HTML

APIs design

Microservices

Azure

AWS

Hibernate

MSSQL

GIT

JIRA

Job description

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 is 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 .net web-based applications with a 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. .net, C#, node.js, 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.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.