Paymentology is the first truly global issuer-processor, giving banks and fintechs the technology, team, and experience to rapidly issue and process Mastercard, Visa, and UnionPay cards across more than 50 countries, at scale. 

Our advanced, multi-cloud platform, offering both shared and dedicated processing instances, vast global presence, and richer, real-time data, set us apart as the leader in payments.

We are seeking a highly skilled and motivated Senior Java developer to join our team and contribute to our initiative of improving our existing platform. We seek a developer who values the importance of code readability, modularity, and maintainability. The ideal candidate will have good experience in Java development and a strong understanding of software development best practices. As a member of our team, you will be responsible for writing high-quality, maintainable, and scalable code that is easy to read, test, and modify.

What you get to do:

  • Write clean, self-explanatory, and well-documented code that is easy to read and understand.
  • Design and implement small, modular functions with clear and descriptive names.
  • Ensure code consistency by following established coding styles, naming conventions, and formatting guidelines.
  • Maintain a modular and highly cohesive codebase by dividing the code into domains, business logic, ports, and modules.
  • Design code around interfaces, not implementations, to enhance code reuse and maintainability.
  • Write code that is easy to test and reproduce with tests first.
  • Ensure that code is secure and complies with industry-standard security protocols.
  • Optimize code efficiency and scalability by using best practices and modern technologies.
  • Collaborate with other developers and stakeholders to identify and implement new features that improve the platform's usability, maintainability, and scalability.
  • Optimize code efficiency, observability, and scalability by using best practices and modern technologies, such as gRPC, Kafka, Docker containers, OpenTelemetry, and Prometheus.


  • Good understanding of software development methodologies, design patterns, and best practices.
  • Experience in writing clean, maintainable, and scalable code using Java and related technologies.
  • Experience in designing and implementing small, modular functions with clear and descriptive names.
  • Understanding of database design and development using Hibernate ORM and Liquibase (PostgreSQL knowledge is a plus).
  • Experience in designing code around interfaces to enhance code reuse and maintainability.
  • Good to have experience in writing secure code that complies with industry standards (like OWASP, NIST, PCI-DSS, ISO 27001).
  • Strong analytical and problem-solving skills.
  • Ability to work independently and as part of a team.
  • Ability to communicate your work and progress to the team.

Our company is committed to providing a supportive environment with all the resources and support needed to succeed. If you are a skilled developer looking for a challenging and rewarding opportunity to make a significant impact on a widely-used platform, please apply.

We look forward to hearing from you!

What you can look forward to:

At Paymentology we value making a difference to the lives of the people who work for us and who live in the communities where we operate. You can look forward to working with a diverse, global team where Paymentologists at all levels play an important part in our global mission to advance the world through payments and make a difference on a global scale.

Diversity is in our DNA

As a global company, we’re driven by our diverse, curious and innovative Paymentologists.

We’re committed to building an inclusive culture and creating an inspired, diverse place to work.

Changing lives

Our values

Values are attitudes, motives and behaviour patterns that underpin how Paymentologists do their jobs and contribute to Paymentology’s healthy culture. Values influence how well our team members apply their knowledge and skills.

Make it Happen

We don’t wait for permission, we take action when we spot an opportunity to innovate, make an improvement or resolve an issue. We’re always looking for better ways to get things done, together.

Make it Easy

We seek out ways to make things simpler for our clients and colleagues alike; communicating, collaborating and solving challenges agreeably, efficiently, and transparently.

Make it Right

From a simple email to a piece of code, or a major deployment, we pay attention to detail, making things the best they can be. All while making the world around us a better place in the process.

Recruitment scams

We of course encourage you to explore job opportunities at Paymentology. But please be cautious of scams where fraudsters may pretend to be part of our Paymentology recruitment team.

We will never ask for sensitive personal data, credit card details or exchange of money in our hiring and selection process.