{"schemaVersion":"jobsearcher.job.v1","id":"6802eaaa3687087bb4ebf5cf","url":"https://jobsearcher.com/jobs/6802eaaa3687087bb4ebf5cf","canonicalUrl":"https://jobsearcher.com/jobs/6802eaaa3687087bb4ebf5cf","title":"Senior System Engineer","description":"ResponsibilitiesKforce has a client that is seeking a Senior System Engineer in Riverwoods, IL. Overview: Join a team building a modern, scalable payments platform that powers secure transactions across retail, digital, mobile, and customer service channels. We're looking for a hands-on engineer who enjoys solving complex integration challenges, building reliable systems, and delivering high-impact payment solutions at scale.Requirements 8+ years of software engineering experience Experience supporting a payment platform like WorldPay, Paypal, etc. Experience building and consuming REST APIs Experience with on prem databases Hands-on experience with third-party integrations Familiarity with payment, transaction, or financial systems Strong C# and .NET/.NET Core development skills Strong troubleshooting and problem-solving skills Ability to thrive in a collaborative, fast-paced environmentThe pay range is the lowest to highest compensation we reasonably in good faith believe we would pay at posting for this role. We may ultimately pay more or less than this range. Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs. This range may be modified in the future.We offer comprehensive benefits including medical/dental/vision insurance, HSA, FSA, 401(k), and life, disability & ADD insurance to eligible employees. Salaried personnel receive paid time off. Hourly employees are not eligible for paid time off unless required by law. Hourly employees on a Service Contract Act project are eligible for paid sick leave.Note: Pay is not considered compensation until it is earned, vested and determinable. The amount and availability of any compensation remains in Kforce's sole discretion unless and until paid and may be modified in its discretion consistent with the law.This job is not eligible for bonuses, incentives or commissions.Kforce is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.By clicking “Apply Today” you agree to receive calls, AI-generated calls, text messages or emails from Kforce and its affiliates, and service providers. Note that if you choose to communicate with Kforce via text messaging the frequency may vary, and message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You will always have the right to cease communicating via text by using key words such as STOP.","company":"Kforce","rawCompany":"kforce","city":"Deerfield","state":"IL","isRemote":false,"isActive":false,"createdAt":"2026-07-18T14:23:49.738Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1211.00","title":"Computer Systems Analysts","slug":"computer-systems-analysts"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior System Engineer","description":"ResponsibilitiesKforce has a client that is seeking a Senior System Engineer in Riverwoods, IL. Overview: Join a team building a modern, scalable payments platform that powers secure transactions across retail, digital, mobile, and customer service channels. We're looking for a hands-on engineer who enjoys solving complex integration challenges, building reliable systems, and delivering high-impact payment solutions at scale.Requirements 8+ years of software engineering experience Experience supporting a payment platform like WorldPay, Paypal, etc. Experience building and consuming REST APIs Experience with on prem databases Hands-on experience with third-party integrations Familiarity with payment, transaction, or financial systems Strong C# and .NET/.NET Core development skills Strong troubleshooting and problem-solving skills Ability to thrive in a collaborative, fast-paced environmentThe pay range is the lowest to highest compensation we reasonably in good faith believe we would pay at posting for this role. We may ultimately pay more or less than this range. Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs. This range may be modified in the future.We offer comprehensive benefits including medical/dental/vision insurance, HSA, FSA, 401(k), and life, disability & ADD insurance to eligible employees. Salaried personnel receive paid time off. Hourly employees are not eligible for paid time off unless required by law. Hourly employees on a Service Contract Act project are eligible for paid sick leave.Note: Pay is not considered compensation until it is earned, vested and determinable. The amount and availability of any compensation remains in Kforce's sole discretion unless and until paid and may be modified in its discretion consistent with the law.This job is not eligible for bonuses, incentives or commissions.Kforce is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.By clicking “Apply Today” you agree to receive calls, AI-generated calls, text messages or emails from Kforce and its affiliates, and service providers. Note that if you choose to communicate with Kforce via text messaging the frequency may vary, and message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You will always have the right to cease communicating via text by using key words such as STOP.","datePosted":"2026-07-18T14:23:49.738Z","dateModified":"2026-07-18T14:23:49.738Z","hiringOrganization":{"@type":"Organization","name":"Kforce","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Deerfield","addressRegion":"IL","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"6802eaaa3687087bb4ebf5cf"},"url":"https://jobsearcher.com/jobs/6802eaaa3687087bb4ebf5cf"}}