Software Engineer Co-Op/Intern - Fall 2026

Software Engineer Intern

Imagine your future with us! Since 1971, Paychex has been at the forefront of simplifying HR, payroll, and benefits for American businesses. Our digital HR technology and advisory solutions cater to the changing needs of employers and their employees. With our award-winning training and endless opportunities for growth and development, you can build a lifelong career with us. We pride ourselves on fostering an inclusive and innovative culture. Our leaders are here to support your career journey; they and our dedicated employees embody the values that drive us to support each other, our clients, and our communities. Join us to pursue your passion and unleash your potential.

Overview

Paychex is looking for a driven and curious software engineer intern to join the team for the Fall 2026 semester. In this role, you'll get hands-on experience building real-world applications using C# and React, while working alongside experienced engineers. This is a great opportunity to apply what you've learned in the classroom, grow your technical skills, and contribute to meaningful projects that support Paychex's systems.

Responsibilities

• Develop, test, deploy, maintain, and enhance software solutions in alignment with defined requirements
• Create and execute automated and manual test scripts to ensure application quality and reliability
• Implement well-scoped, routine code changes and enhancements with guidance as needed
• Contribute to effort estimation for tasks and user stories based on business and technical requirements
• Follow and support SDLC standards, coding guidelines, and CI/CD practices to maintain consistency
• Track and report progress against assigned tasks and timelines
• Provide technical support and assist with troubleshooting issues across development and test environments
• Maintain and monitor existing applications, identifying and addressing issues in non-production systems
• Collaborate with team members to review code, validate functionality, and improve overall solution quality
• Participate in Agile processes including sprint planning, stand-ups, and retrospectives

Qualifications

• Currently pursuing a Bachelor's or Master's degree in Computer Science or a related technical discipline.
• Hands-on experience with at least one programming language through academic projects or personal work
• React & C# experience strongly preferred

Compensation

In the spirit of pay transparency, we are excited to share that the starting base pay range for this position is $18.00 - $22.00 hourly. Please keep in mind that this range is the base pay only and does not consider other components that make up the total rewards package for the position. If you are hired at Paychex, your overall compensation will be determined based on factors such as geographic location, skills, education, and/or experience which may result in total compensation outside of this range.

Live the Paychex Values

• Act with uncompromising integrity.
• Provide outstanding service and build trusted relationships.
• Drive innovation in our products and services and continually improve our processes.
• Work in partnership and support each other.
• Be personally accountable and deliver on commitments.
• Treat each other with respect and dignity.

What's in it for you?

• We value your well-being: We provide over 21 comprehensive rewards, including medical coverage, virtual wellness classes, tuition reimbursement, 401(k) + employer match, adoption assistance, financial assistance, and much more.
• We value your time: From paid time off to company holidays, culture days, and comprehensive work-life balance programs, we will ensure you have the flexibility you need to be your best.
• We value your development: Our award-winning training and development programs empower our employees with ongoing learning opportunities to give you the building blocks to grow your career.
• We value your perspective: Our company culture reflects the diversity of our employees. We want you to be you and your voice to be heard.
• We value our communities: We offer paid time off for volunteerism and promote many company-wide and local initiatives that benefit organizations you care about.

Note: The benefits described apply to full-time employees. Benefits for part-time, contract, and intern roles may vary.

Not sure if you meet every requirement? At Paychex, we know that great talent comes in many forms. If you're passionate about the role but don't check every box, we still encourage you to apply. You might be the right fit - either for this position or another opportunity with us. Paychex is an equal opportunity employer. We are committed to fostering a respectful and inclusive workplace where all individuals are treated fairly and evaluated based on their qualifications, experience, and merit. We comply with all applicable federal, state, and local laws prohibiting discrimination in employment.