AI-Driven Agentic Commerce Software Engineer

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

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.