Senior Software Engineer I – Send Core (Java)

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.

Job Description

More about our mission and what we offer.

About The Role

We are looking for a Senior Backend Engineer to join our Send Core team.

Our Send Core team specialises in building high-performance, highly available services that power Wise’s Send offering.

We’re on a mission to build the industry’s most reliable Send product, creating a seamless and predictable transfer experience that exceeds customer expectations for speed and dependability. Customers should be able to send money on time, in full, and without surprises.

Join us in shaping the future of global money transfers, making them easier and more reliable than ever.

What will you be working on?

• Design, build, and scale distributed systems that support high-volume international transfers with resilience, reliability, and performance at their core.
• Take ownership of the entire development lifecycle, ensuring code quality, maintainability, and scalability.
• Collaborate with cross-functional teams, including product, data, and operations, to continuously improve the Send experience.
• Work on fault-tolerant architectures, event-driven systems, and real-time transaction processing.
• Ensure Wise’s infrastructure and services meet the highest standards for availability, security, and performance.
  
  

What do you need?

• A strong product mindset and passion for customer experience, with a data-driven approach to solving problems.
• Great communication skills, with the ability to explain complex technical concepts to non-technical stakeholders.
• Ability to prioritise between, drive, and support multiple cross-team collaboration projects simultaneously
• A track record of delivering high-quality software autonomously, taking full ownership of projects.
• Solid experience with Java or Kotlin, the Spring framework, and messaging systems like Kafka.
• Hands-on experience with microservices, BFFs (Backend for Frontend), distributed systems, and designing APIs with scalability, maintainability, and fault tolerance in mind.
• Experience working with relational and non-relational databases, including query optimisation and schema design.
  
  

Nice To Have

• First-hand experience or a deep understanding of the pain points of sending money globally.
• Experience using Wise and identifying opportunities to improve the product.
  
  

Interested? Find out more:

• How we work – a practical guide
• Wise Tech Stack (2025 update)
• Our Engineering career map
• 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 + RSUs
• Wise Benefits
  
  

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.