Software Engineer Specialist - Agentic Commerce

United States Digital Space LLC; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Globalpayer in London is seeking a Software Engineer, Agentic Commerce to join our pioneering Engineering team and help shape the future of autonomous, AI-assisted payments.

You'll design and secure checkout APIs, integrate agentic payment capabilities, and deliver merchant-facing APIs and SDKs while collaborating across product, architecture and developer relations to create scalable, reliable commerce solutions.

Qualifications

• Experience designing, developing, debugging and enhancing scalable software applications and APIs.
• Strong understanding of end-to-end software development life cycles, engineering standards and modern development practices.
• Proficiency in solutions design, systems architecture and requirements definition.
• Knowledge of distributed systems, API development and integration patterns.
• Familiarity with financial services, payments or fintech technologies.
• Bachelor's degree in Computer Science, Computer Engineering or a related discipline, or equivalent experience.

Responsibilities

• Design and build secure checkout APIs that AI agents can invoke reliably and deterministically, including support for UCP, ACP, AP2, Agentic Tokens and MPP.
• Integrate agentic payment capabilities across Global Payments platforms to enable seamless autonomous commerce experiences.
• Architect and deliver merchant-facing APIs and SDKs with clear contracts, predictable error handling and excellent documentation.
• Champion developer experience by improving discoverability, reducing time-to-first-transaction and gathering feedback from external developers to drive continuous improvement.
• Collaborate with product managers, architects and engineering teams to define technical requirements, participate in software design reviews and contribute to API governance standards across the organization.

Skills

APIs design

Distributed systems

API development

System architecture

Payments/Fintech familiarity

SDLC knowledge

Education

Bachelor's degree in Computer Science / related field

Job description

Ready to take your career global?

Make your mark at one of the biggest names in payments. We're looking for a Software Engineer, Agentic Commerce to join our ever-evolving Engineering team and help shape the future of global commerce.

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.

You'll join a greenfield team focused on building the future of autonomous commerce. Working at the intersection of AI integration, developer experience and payment innovation, you'll help define how AI agents securely transact on behalf of consumers while shaping the standards that will power the next generation of digital commerce.

What you'll own

• Design and build secure checkout APIs that AI agents can invoke reliably and deterministically, including support for UCP, ACP, AP2, Agentic Tokens and MPP.
• Integrate agentic payment capabilities across Global Payments platforms to enable seamless autonomous commerce experiences.
• Architect and deliver merchant-facing APIs and SDKs with clear contracts, predictable error handling and excellent documentation.
• Champion developer experience by improving discoverability, reducing time-to-first-transaction and gathering feedback from external developers to drive continuous improvement.
• Collaborate with product managers, architects and engineering teams to define technical requirements, participate in software design reviews and contribute to API governance standards across the organization.

What you'll bring

• Experience designing, developing, debugging and enhancing scalable software applications and APIs.
• Strong understanding of end-to-end software development life cycles, engineering standards and modern development practices.
• Proficiency in solutions design, systems architecture and requirements definition.
• Knowledge of distributed systems, API development and integration patterns.
• Familiarity with financial services, payments or fintech technologies.
• Bachelor's degree in Computer Science, Computer Engineering or a related discipline, or equivalent experience.

It's a bonus if you have

• Experience working with AI, LLMs, autonomous agents or agentic commerce solutions.
• Knowledge of payments processing, fraud prevention or digital commerce ecosystems.
• Experience developing SDKs, developer platforms or external-facing technology solutions.

Think like a client

You care deeply about delivering exceptional experiences for merchants, developers and partners. You seek to understand customer needs and build solutions that simplify integration and accelerate adoption.

Act like an owner

You take accountability for outcomes, embrace innovation and continuously look for better ways to build secure, scalable and reliable payment solutions.

Win as one team

You collaborate effectively across product, engineering, sales and client-facing teams, valuing diverse perspectives and contributing to shared success.

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.

Does this sound like you? Then you sound like a Globalpayer.