Senior Software Engineer

Every day, Global Payments makes it possible for millions of people to move money between buyers and sellers using our payments solutions for credit, debit, prepaid and merchant services.  Our worldwide team helps over 3 million companies, more than 1,300 financial institutions and over 600 million cardholders grow with confidence and achieve amazing results.  We are driven by our passion for success and we are proud to deliver best-in-class payment technology and software solutions.  Join our dynamic team and make your mark on the payments technology landscape of tomorrow. 

Who We Are

Global Payments enables millions of buyers and sellers to move money securely across the globe. Our teams build the payment technologies that power businesses and financial institutions with speed, reliability, and trust. Join us and help shape the next generation of payment experiences used by merchants and customers worldwide.

Your New Position

As a Senior C++ Software Engineer, you will design and build the software powering our next‑generation countertop and handheld Genius payment terminals. These secure embedded devices process EMV contact, contactless, and mobile wallet transactions, integrating seamlessly with Point of Sale systems and payment gateways using modern web‑based protocols. You will play a leading role in technical design, implementation, and delivery, driving engineering excellence across the team.

What You Will Be Doing

Software Development & Delivery

• Design, develop, and maintain C++ applications for smart‑card, NFC/contactless, and mobile payment flows

• Implement secure, end‑to‑end transaction handling including cryptographic operations, key management, and digital signatures

• Integrate terminal software with POS systems, payment gateways, and merchant applications

• Write high‑quality, production‑grade C++

• Troubleshoot, diagnose, and resolve complex defects across the embedded stack

Technical Leadership

• Own delivery across the full SDLC: requirements, architecture, implementation, testing, and release

• Lead by example in applying strong engineering principles: modularity, encapsulation, separation of concerns, high cohesion/low coupling

• Conduct code reviews and champion design patterns, refactoring, and maintainability

• Mentor, guide, and uplift the engineering team through coaching, knowledge‑sharing, and leading technical initiatives

Collaboration & Product Impact

• Work closely with Product, test and other engineering teams to influence design decisions and ensure robust technical outcomes

• Contribute to continuous improvements in tools, CI/CD, build systems, and team workflows

• Participate in team events, hackathons, and technical workshops to strengthen collaboration and innovation

Who You Are

• Strong expertise in C++ development

• Degree in Computer Science or related field with 3+ years industry experience

• Solid grounding in object‑oriented design, software architecture, and design patterns

• Comfortable working in a fast‑moving environment with strong problem‑solving and communication skills

• Able to work from home as preferred but also live within reasonable practical travel distance to Belfast for in‑person team events, hackathons, and collaboration days

Nice To Have

• Awareness of PCI DSS, P2PE, or other secure payment/cryptography standards

• Experience with embedded systems, Linux development, or customer‑facing payment devices

• Kotlin or Android experience (including Jetpack Compose and android studio)

• Experience working in Lean/Kanban environments

• Python exposure

• SQL experience

Our Embedded Tech Stack

• Languages: C++

• Tooling: Git, Jenkins, Android studio, CLion, Visual Studio

• UI/Android: Jetpack Compose (where applicable)

• Platforms: RHEL, Windows and virtualised dev/test environments

• Security: EMV, cryptographic APIs, secure channel protocols, PCI DSS, P2PE

What We Offer

• Competitive salary with performance bonus

• Health, dental, and vision coverage

• Pension plan and life insurance

• Flexible working from our new office in the heart of Belfast city centre

• Generous paid time off

• Professional development and training opportunities

• Employee assistance, wellbeing programs, and regular team events

Global Payments Inc. is an equal opportunity employer. Global Payments provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex (including pregnancy), national origin, ancestry, age, marital status, sexual orientation, gender identity or expression, disability, veteran status, genetic information or any other basis protected by law. If you wish to request reasonable accommodations related to applying for employment or provide feedback about the accessibility of this website, please contact [email protected].