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Senior Java Engineer - Kafka

Wise

Wise

Software Engineering
London, UK
GBP 85k-105k / year + Equity
Posted on May 10, 2025
Apply now

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 senior software engineer with a background in using Apache Kafka.

Our Kafka team is part of the Data Squad.

We provide the tooling and infrastructure that allows Wise to use Kafka for messaging and stream processing. Our Kafka platform enables services to communicate asynchronously and pipelines to do calculations and make decisions in milliseconds, powering our validation, fraud detection and anti money laundering checks.

We also provide the tooling to manage our Kafka clusters and libraries for services to produce and consume data. This enables product teams to build their services focusing on the business logic instead of the Kafka infrastructure complexity.

How we work

We operate on a strong belief in automation, programmatic implementation, and reusable design. We’re looking for people who can step back and think holistically about the ecosystem, but also follow through and help implement the design; drawing on the resources across the rest of the platform tribe.

As we grow the Kafka team, we need to sustain this growth by continuously iterating on the services and infrastructure we run, with a focus on availability, security, and ease of use. We’re looking for an engineer with relevant experience who can analyse complex requirements and deliver simple solutions to help our teams achieve our mission with speed and confidence.

What will you be working on?

You’ll be working hands on designing, architecting, implementing and operating our systems on AWS. In addition, you will also help our product engineers use our tooling and systems, laying down best practises and rules. You should have a deep understanding of Java and using Kafka clients, being able to build and support the libraries we use to produce and consume data asynchronously with Kafka. Some of the technologies we use:

  • Java, Python

  • Spring

  • Terraform

  • AWS

What do you need?

We are fully aware that it is uncommon for a candidate to have all skills required and we fully support everyone in learning new skills with us. So if you have some of those listed below and are eager to learn more we do want to hear from you!

  • Experience building production code with Java and Spring.

  • Experience using Kafka from the client side.

  • Experience with managing Kafka infrastructure.

  • Experience with infrastructure automation tools.

  • Experience building and operating distributed systems at scale.

Interested? Find out more:

  • The Wise Tech Stack, 2025 Edition.

  • Scaling our Infrastructure; how we make it work

  • Wise Engineering – https://medium.com/wise-engineering

What do we offer:

  • Starting salary: £85,000-£105,000 + RSU

  • Wise Benefits

#LI-AB3 #LI-Hybrid


Additional Information

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.

Keep up to date with life at Wise by following us on LinkedIn and Instagram.

Apply now
See more open positions at Wise
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