Verifone

Senior Software Developer

Verifone  •  London, GB (Hybrid)  •  1 month ago
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Job Description

Senior Developer – Global Payment Gateway System

Why Verifone

For more than 30 years, Verifone has been a global leader in electronic payment technology. We work with leading retailers, merchants, banks, and technology partners to deliver secure, reliable, and innovative payment solutions worldwide.

Verifone offers a fast‑paced, collaborative environment focused on engineering excellence, customer impact, and continuous innovation. We are proudly an in‑office organization and currently support a hybrid work model, which is reviewed regularly.

What’s Exciting About the Role

This London‑based role is part of Verifone’s global payment gateway platform, where engineering decisions directly impact the reliability, security, and performance of high‑volume financial transactions worldwide. You will work on backend services that sit at the core of payment processing, balancing scalability, data consistency, and security in a highly regulated environment.

The role is ideal for a senior backend developer who enjoys working on complex distributed systems, modern Java platforms, and cloud‑native architectures, and who takes ownership of systems that must perform reliably under real‑world load.

We are seeking a Senior Developer based in Londonto design, build, and operate backend services for our global payment gateway system. You will develop high‑performance, secure microservices using Java and Spring Boot, collaborate closely with platform, product, and infrastructure teams, and help ensure our systems scale reliably across regions and partners.

Required Skills and Experience

Programming Languages

  • Java 17 or higher

Frameworks and Libraries

  • Spring Boot
  • Spring Web(REST APIs)
  • Spring Data
  • Spring Securitywith JWT / OAuth2

Architecture & System Design

  • Microservice‑based architectures
  • Clean code practices and SOLIDprinciples
  • Experience designing scalable, fault‑tolerant backend services
  • Strong understanding of security, authentication flows, and data protection

API & Data

  • RESTful API design using JSON and HTTP standards
  • API versioning strategies
  • MongoDB / NoSQLexperience, including:
    • Data modeling
    • Indexing strategies
    • Performance tuning
  • Experience with Java concurrency, streams, and performance optimization

Cloud & Infrastructure

  • AWS services including EC2, ECS/EKS, S3, RDS and/or DynamoDB, and CloudWatch
  • Dockerand containerized deployments
  • CI/CD pipelines and Git‑based workflows

Testing & Engineering Practices

  • Unit and integration testing using JUnitand Mockito
  • Strong focus on testability, quality, and maintainability
  • Experience working in Agile / Scrumenvironments

Preferred Skills and Experience

Payments & Domain Experience

  • Background in fintech or payments
  • Experience handling transactions, payment flows, and financial data
  • Understanding of high‑availability, security, and data consistency trade‑offs

Eventing & Distributed Systems

  • Exposure to event‑driven architectures
  • Messaging or streaming technologies such as:
    • Kafka
    • AWS SQS
    • Similar eventing systems

Platform & Operations

  • Advanced experience with AWS, Docker, and CI/CD practices
  • Production experience operating distributed systems at scale
  • Strong ownership mindset for services running in production

Our Commitment

Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Verifone

About Verifone

The world’s leading brands trust Verifone for global payments. We power the boundless payments grid for merchants, fintech companies, and financial institutions worldwide. By combining a flexible payments platform comprised of devices, applications, services, acquiring and more, an open ecosystem of 2,500+ integrations, and four decades of payments expertise, Verifone eliminates complexity and expands what’s possible across every payment channel. Verifone operates in 165 countries and processes $8 billion in transactions annually. At Verifone, we believe payments should never be a barrier—they should be a launchpad for growth.

Looking to join a global team shaping the future of payments? Learn more about life at Verifone and our open opportunities at https://www.verifone.com/en/global/careers.

Industry
Finance & Insurance
Company Size
1,001-5,000 employees
Headquarters
New York, NY
Year Founded
1981
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