Senior Software Engineer - .NET (Full Stack)

Senior Software Engineer - .NET (Full Stack) Team Product and Technology Development This position is not eligible for visa sponsorship, now or in the future. Candidates must be a US Citizen or valid Green Card Holder. This position is hybrid in the following office locations: Cincinnati, OH (3 days) or Denver, CO (2 days) Ready to take your career global? Make your mark at one of the biggest names in payments. We’re looking for a Senior Software Engineer - .NET (Full Stack) to join our ever-evolving Launchpad team and help shape the future of global commerce. Launchpad is a Worldpay application designed to streamline merchant onboarding. It collects all necessary merchant details, enabling businesses to quickly start accepting credit card payments and settle transactions on the Worldpay platform. Launchpad includes both a user-friendly UI and robust API components to support seamless integration. What you’ll own Develop and maintain RESTful APIs, backend services, and integrations with internal and external systems. Create reusable UI components, libraries, and shared services to improve development efficiency and consistency. Develop and execute unit, integration, and automated tests to ensure application quality and reliability. Participate in code reviews, technical design sessions, architecture discussions, and sprint planning activities. Troubleshoot and resolve application defects, production issues, and performance bottlenecks. What you’ll bring Bachelor's degree in computer science, Engineering, Information Systems, or equivalent practical experience, with 8+ years of software development experience in enterprise application environments. 6+ years of hands-on C# development experience with deep expertise in .NET Framework, ASP.NET MVC, ASP.NET Web API, ASP.NET Core, and modern .NET platforms (.NET Core/.NET 8+). Proven experience leading application modernization initiatives, including large-scale migrations from .NET Framework 4.x to .NET Core/.NET, enabling cloud-ready, scalable, and maintainable solutions. Extensive knowledge of Entity Framework, LINQ, SQL Server, relational database design, authentication, authorization, and web security best practices. Proficiency with Git, CI/CD pipelines, DevOps practices, automated testing (unit and integration), and code quality/security tools including Snyk, Checkmarx, and BlackDuck. Strong technical leadership, analytical problem-solving, and communication skills, with experience mentoring engineers and delivering solutions in Agile development environments. It’s a bonus if you have Acts like an owner by taking initiative, driving outcomes independently, and proactively engaging stakeholders to ensure successful delivery. Demonstrates curiosity and continuous learning, quickly acquiring new technical and business knowledge to make informed decisions and add value. Collaborates effectively across teams, seeking clarity when needed, sharing knowledge openly, and helping the broader team succeed. About the team Our inclusive and global teams win together every day. We’re proud to have the best minds in the industry, who you can learn from as you grow your career. The people, the energy, the connections – it’s unmatched. Come and be part of an ever‑evolving company and get dynamic opportunities that go beyond borders. What makes a Globalpayer? Globalpayers think like a client, act like an owner and win as one team. We’re curious and innovative – always finding better ways to deliver impact. We empower each other to make decisions, and it’s our passion that drives excellence in everything we set out to do. Worldpay is dedicated to offering individuals rewarding career opportunities and competitive compensation. For this full-time position, the good faith estimated annual salary range upon hire is $113,600.00-$171,575.00. This range reflects what we reasonably expect to offer based on the role’s responsibilities, level, and geographic location. The actual starting salary will be determined by a candidate’s experience, job-related skills, and relevant education or training. Please note that changes in work location may impact the final offered salary. We encourage you to consult with your recruiter to confirm the budget for your location and to better understand the applicable pay scale. This position is eligible for bonus. Candidates and applicants are advised they may redact age information from requested items like transcripts, resumes, and certificates attached to their application for positions that can be performed in Colorado. EEOC Statement Worldpay is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, marital status, genetic information, national origin, disability, veteran status, and other protected characteristics. The EEO is the Law poster is available here . If you are made a conditional offer of employment and will be working in the United States, you will be required to undergo a drug test. In developing this job description care was taken to include all competencies and requirements needed to successfully perform the position. Reasonable accommodations will be provided for individuals with qualified disabilities both during the hiring process, as well as to allow the individual to perform the essential functions of the job, if hired. Washington Candidates: Click here for information on the Fair Chance Act. Senior Software Engineer - .NET (Full Stack) Explore the benefits we offer in the USA My Health We offer access to medical coverage that supports the health and wellbeing for you and your family. My Money In addition to base salary, you may be eligible for bonuses and/or equity awards, determined by role, level, impact, and our policies. My Lifestyle We have a dedicated Wellness Week each year - which includes an extra paid day off - so you can take time to relax, recharge and invest in your wellbeing. My Family FLEX, our family inclusion community, offers support for all Globalpayers at every stage, from raising families to caring for loved ones My Time Off We offer paid time off and public holidays so you can rest, recharge and spend time on what matters most. Application steps Here's where we'll learn a little about you, why you want to join Global Payments, and why you'd be a good addition to our team. You'll also need to upload your resume and a cover letter too. Application Review Once you’ve submitted your application, Globalpayers will review it and see if you’re a good match for the role, team and culture. If you’re successful, we’ll invite you for an interview where we can get to know each other better. Interview with a Globalpayer This is the time where we get to know you better, and your opportunity to learn more about us. The best way to thrive is to bring your whole self to the conversation. We’ll ask about your skills and experiences, as well as your career aspirations. Depending on the role, you might have multiple interviews with various Globalpayers. Offer and Onboarding The exciting part! If you’re the best candidate, your recruiter will be in touch to confirm your offer. If you accept, we’ll walk you through the next steps of what you can expect during your background check and onboarding process to get you ready to become an official Globalpayer. Like what you see? Here's some more opportunities we think you might like. 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Global Payments does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company. Ready to take your future global? Become a Globalpayer Ready to take your future global? Become a Globalpayer #J-18808-Ljbffr Greater Giving, Inc.