Senior Software Engineer I - Stream Processing - Kafka & Flink

Software Careers; Greater London; On-site; GBP 87,500 - 111,000; Full time

Benefits offered by this job

RSUs

Job summary

Wise in London is seeking a Senior Software Engineer I specializing in stream processing. You will design, implement and operate real-time data pipelines using Flink and Kafka Streams, with Java/Spring code and infrastructure automation.

The role blends hands-on development with platform stewardship across a scalable distributed system. Join the Data Squad's Stream Processing team and contribute to low-latency decisions powering fraud checks, AML processes, and data lake movements in a hybrid

Qualifications

• Experience with Flink and/or Kafka Streams.
• Experience building production code with Java and Spring.
• Experience with infrastructure automation tools.
• Experience building and operating distributed systems at scale.

Responsibilities

• Design, architect, implement and operate our systems on AWS.
• Help product engineers use our tooling and enforce best practises.
• Build pipelines for real-time decision making in the millisecond range.

Skills

Flink

Kafka Streams

Java

Spring

Infrastructure automation

Tools

Apache Flink

Kafka Streams

Java

Spring

Kubernetes

Job description

# Senior Software Engineer I - Stream Processing - Kafka & Flinkat Wise • London, UKBack to jobs1. Home2. Jobs3. United Kingdom4. Senior Software Engineer I - Stream Processing - Kafka & Flink4h agoW## Senior Software Engineer I - Stream Processing - Kafka & FlinkWise00Stream ProcessingFull-timeGBP 87500 - GBP 111000 - yearlyLondon, UKApply Job### Job DescriptionAbout the roleWe are looking for a senior software engineer with a background in stream processing.Our Stream Processing team is part of the Data Squad.We provide the tooling and infrastructure that allows Wise to process transfers in real time. Our stream processing platform enables services to do calculations and make decisions in milliseconds, powering our validation, fraud detection and anti money laundering checks.We also provide the services responsible for data movement into our data lake. This enables product teams and analysts to make data driven decisions.How we workWe 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 Stream Processing team, we need to sustain this growth by continuously iterating on the services 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 stream processing and the related technologies, being able to build and support the tooling to create pipelines that are used for real time decision making in the milliseconds range. Some of the technologies we use:\* Apache Flink\* Apache Iceberg\* K8s operators\* Kafka StreamsWhat 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 with Flink and/or Kafka Streams\* Experience building production code with Java and Spring.\* Experience with infrastructure automation tools.\* Experience building and operating distributed systems at scale.Interested? Find out more:\* [How we work – a practical guide](https://wise.jobs/how-we-work)\* [DEI @ Wise](https://wise.jobs/diversity-equity-and-inclusion)\* [Wise Tech Stack (2025 update)](https://medium.com/wise-engineering/wise-tech-stack-2025-update-d0e63fe718c7)\* [See what it's like to work at Wise London!](https://www.youtube.com/watch?v=XNMeFMoqBEA&feature=youtu.be)\* [Our Engineering career map](https://wise.jobs/engineering-career-map)\* Wise Engineering – [https://medium.com/wise-engineering](https://medium.com/wise-engineering)What do we offer:\* \*\*Starting salary: £87,500 - £111,000 + RSUs\*\*\* [Wise Benefits](https://wise.jobs/what-we-offer)#LI-AB3 #LI-Hybrid