Senior Software Engineer, Banking Payments Network

Wise; Greater London; On-site; GBP 111,000 - 145,000; Full time

Benefits offered by this job

RSUs

Wise Benefits

Job summary

Wise is hiring a Senior Software Engineer II for the Wise for Banks team in London. You will shape the technical direction of the global payment network, driving architecture, scalability, and reliability across 700+ microservices.

You’ll mentor engineers, promote best practices in domain-driven design and distributed systems, and collaborate with cross-functional teams to enable seamless partner integrations.

Qualifications

• Extensive experience building backend systems using Java and Spring Boot in production environments.
• Strong experience designing and operating large-scale microservices architectures and distributed systems.
• Proven experience building or operating event-driven systems using Kafka or similar messaging platforms.
• Strong knowledge of relational databases such as PostgreSQL, including schema design, query optimisation, and maintaining data integrity in high-scale systems.
• Experience applying domain-driven design (DDD) to model complex business domains and design scalable systems is a plus.
• A strong product mindset and passion for user experience — you prioritise work with the customer in mind and make data-driven decisions to solve real problems.
• Excellent problem-solving skills, with the ability to operate independently while collaborating effectively across teams.
• Strong communication and leadership skills, with the ability to clearly convey technical concepts to both technical and non-technical audiences.
• Experience mentoring engineers and contributing to raising technical standards across teams.

Responsibilities

• Lead the design and development of highly scalable and resilient services in Java and Spring Boot within Wise’s microservices architecture, helping evolve the systems that power our global payments network.
• Apply domain-driven design to model complex financial domains and build robust, scalable solutions that support Wise’s growing partner ecosystem.
• Drive the development and adoption of event-driven architectures using Kafka or similar messaging systems, ensuring systems are reliable, observable, and able to scale with increasing transaction volumes.
• Architect and optimise relational database systems (e.g. PostgreSQL), ensuring strong data modelling, performance, and reliability across critical financial workflows.
• Collaborate with cross-functional teams including Product, Implementation, Solutions Engineering, and Business Development to support partner integrations and expand the Wise payment platform globally.
• Provide technical leadership across teams, influencing architecture decisions, contributing to platform-level improvements, and ensuring engineering standards remain high across services.
• Participate in code reviews, architecture discussions, and technical planning, championing best practices in distributed systems, reliability, and maintainability.
• Mentor and support engineers, helping grow technical capability across the team while fostering a culture of learning, ownership, and collaboration.

Skills

Java

Spring Boot

Microservices

Distributed systems

Kafka

PostgreSQL

DDD

Leadership

Mentoring

Tools

Kafka tooling

PostgreSQL tooling

Job description

Wise is hiring a Senior Software Engineer II for the Wise for Banks team in London. You will shape the technical direction of the global payment network, driving architecture, scalability, and reliability across 700+ microservices.

You’ll mentor engineers, promote best practices in domain-driven design and distributed systems, and collaborate with cross-functional teams to enable seamless partner integrations.