Senior Software Engineer I - Pricing Core

Mat Vin; Greater London; Hybrid; GBP 85,000 - 120,000; Full time

Job summary

Wise in London is seeking a Senior Software Engineer I for the Pricing Core team. You will design, develop, test and maintain backend services in Java, using Spring Boot and deployed on AWS.

The role emphasizes building high-volume, scalable systems that process financial events with Kafka. You will contribute to architectural decisions, optimize performance, and participate in on-call rotations to keep Tier 1 services reliable and secure.

Qualifications

• Proven backend development experience in a production environment.
• Strong Java or similar OOP language background.
• Ability to design for scale and long-term iteration.
• Experience with cloud infrastructure and distributed systems.

Responsibilities

• Design, develop, test, and maintain backend services in Java with Spring Boot on AWS.
• Build event-driven architectures using Apache Kafka.
• Drive architectural decisions ensuring quality, reliability and observability.
• Identify performance bottlenecks and technical debt; participate in on-call rotations.

Skills

Java

Spring Boot

Kafka

AWS

Code reviews

On-call

Tools

Kafka

Job description

Senior Software Engineer I - Pricing Core

Wise

Employment: full time

London

Job Description

Company Description

Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed.

Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money.

As part of our team, you will be helping us create an entirely new network for the world's money. For everyone, everywhere.

We are looking for a passionate Backend Software Engineer to join the Pricing Core team.

The Pricing Core team focuses on building and maintaining the main pricing platform that enables teams at Wise to price their products in a reliable, scalable and extensible way. Our services sit in most of the products' critical paths, processing 100+ million requests every day and operating within strict SLAs.

You’ll have the chance to work on and shape the future of complex systems, dealing with high-throughput services, designing and building scalable, efficient and performant solutions.

The team sits within the Pricing Squad and you’ll work closely with teams within and outside the squad.

Main Responsibilities

• Design, develop, test, and maintain backend services written in Java using the Spring Boot framework, deployed on cloud infrastructure (AWS)
• Build and maintain event-driven architectures using Apache Kafka for asynchronous processing of financial events across distributed services
• Contribute and drive architectural decisions, ensuring we maintain a high bar on quality, reliability and observability of our services
• Identify and resolve performance bottlenecks, scalability issues, and technical debt in existing systems
• Participate in on-call rotations to monitor and respond to production incidents for Tier 1 critical services
• Conduct code reviews for team members, ensuring code quality, security, and adherence to engineering standards

What we’re looking for

Technical Excellence

• Strong background in software engineering, with a track record of contributing significantly to large, impactful projects in a complex production domain.
• Experience with Java or similar OOP language.
• Expert in your technical discipline, with the ability to design for long-term iteration and scale.
• You own the availability, reliability and security of the systems you build following engineering best practices.
• You make sensible trade-offs between speed, scalability and risk, and optimise for a predictable, regular cadence of delivery.

Product mindset and autonomy

• Ability to work on ambiguous and complex problems
• Own the technical roadmap and deliverables of your project end-to-end, embracing long-term ownership
• Use data to define, prioritise and measure the success of the initiatives

Collaboration, Communication and Growth

• Great communication skills and the ability to tailor communication style depending on the audience
• Ability to work with cross‑functional teams to shape requirements and priorities
• Ability to mentor and coach other engineers
• Actively share knowledge both within the team and squad
• Regularly seek and provide feedback

Nice to have

• Experience in pricing systems and/or payments, finance domains
• Experience working with distributed SQL engines (e.g. Trino)
• Ability to build software solutions, APIs, or platform tooling on top of big data pipelines and analytical engines
• Familiarity with configuration-heavy domain where business logic is shared between data and code

For everyone, everywhere. We're people building money without borders — without judgement or prejudice, too. We believe teams are strongest when they are diverse, equitable and inclusive.

We're proud to have a truly international team, and we celebrate our differences. Inclusive teams help us live our values and make sure every Wiser feels respected, empowered to contribute towards our mission and able to progress in their careers.

If you want to find out more about what it's like to work at Wise visit Wise.Jobs .

Company Description

Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed.

Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money.

As part of our team, you will be helping us create an entirely new network for the world's money. For everyone, everywhere.

More about our mission and what we offer.

Job Description

About the role

We are looking for a passionate Backend Software Engineer to join the Pricing Core team.

The Pricing Core team focuses on building and maintaining the main pricing platform that enables teams at Wise to price their products in a reliable, scalable and extensible way. Our services sit in most