Senior Software Java Engineer I - Reliability

Posted Yesterday
Be an Early Applicant
London, England, GBR
Hybrid
88K-111K Annually
Senior level
Fintech • Mobile • Payments • Software • Financial Services
Wise is one of the fastest growing fintechs in the world and we’re on a mission to make money without borders a new norm
The Role
Develop and improve reliable backend microservices across Wise. The role focuses on performance optimization, resilient architecture, capacity planning, autoscaling, redundancy, observability, and troubleshooting application, database, and data issues. The engineer will collaborate with product teams, implement reusable libraries and organization-wide reliability strategies, and influence teams to prioritize availability and customer experience in a Kubernetes-based cloud environment.
Summary Generated by Built In
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

More about our mission.

About the role 

We are looking for a Senior Software Engineer to join our Reliability Engineering team at Wise. You will work cross-functionally with software engineering teams across the business, identifying and implementing reliability improvements to our most important business services.

Our team's mission: Enhance the reliability, performance, and compliance of Wise products for customers. Bridge the gap between Product and Platform through collaboration, hands-on contribution, and co-ordinating org-wide efforts.

How we work

We operate on a strong belief in automation and reusable design. We’re looking for people who can step back and think holistically about the ecosystem, design scalable solutions, and follow through on implementation, drawing on the resources across the rest of the Platform tribe.

As Wise scales, the reliability expectations for our products continue to increase. To sustain the growth, we must continuously iterate on the services we run, with a focus on availability and customer experience. We’re looking for an engineer with relevant expertise who can analyse complex requirements and deliver simple solutions to help product teams achieve our mission with speed and confidence.
 

What will you be working on?

  • Identify opportunities to optimise the performance of our critical backend microservices, by implementing and improving the common libraries used by teams across Wise.
  • Develop and implement org-wide, resilient strategies in code, to address challenges in capacity, autoscaling, resiliency, performance and redundancy.
  • Deep-dive with teams into their services, suggest best practices, and implement changes to improve reliability.

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!

  • A product engineering background, and are looking to have a big impact.
  • Strong collaboration skills, an ability to jump into projects with limited context and be enthusiastic about influencing how teams prioritise reliability.
  • Strong experience working with microservices in a Kubernetes, cloud-based architecture.
  • Hands-on Software Engineering experience (Java or other backend languages) - you will be contributing to the Wise product and applying reliability best practices (development, resiliency patterns, observability).
  • Hands-on experience with troubleshooting Application, Database, Data related issues.
  • Strong prioritisation skills and effective time management.

We are currently only considering local candidates as relocation support is not provided.
For local candidates we are able to support transfer of visa sponsorship.

Interested? Find out more:

  • How we work – a practical guide

  • DEI @ Wise

  • 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: £87,500 - £111,000 + RSUs

  • 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.

Skills Required

  • Product engineering background
  • Strong collaboration skills and ability to influence reliability prioritization
  • Experience working with microservices in a Kubernetes, cloud-based architecture
  • Hands-on software engineering experience with Java or other backend languages
  • Experience applying reliability best practices, development, resiliency patterns, and observability
  • Hands-on experience troubleshooting application, database, and data-related issues
  • Strong prioritization skills and effective time management

What the Team is Saying

Wise Compensation & Benefits Highlights

  • Equity Value & Accessibility Equity is broadly accessible through RSUs granted to all employees in addition to salary, aligning rewards with company performance. This company‑wide ownership stance is consistently highlighted in the benefits descriptions.
  • Leave & Time Off Breadth Paid time off is notably generous, with a global minimum of 33 days and 36 days listed for U.S. locations. After four years, a six‑week paid sabbatical plus a £1,000 stipend further strengthens time‑away benefits.
  • Wellbeing & Lifestyle Benefits Lifestyle support includes work‑from‑anywhere for up to 90 days per year after six months, flexible working principles, and a 24/7 Employee Assistance Program. Extras like three annual “Me Days” and a professional‑development allowance add quality‑of‑life value.

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The Company
9,000 Employees
Year Founded: 2011

What We Do

Wise is a global technology company, building the best way to move and manage the world's money. With Wise Account and Wise Business, people and businesses can hold 40 currencies, move money between countries and spend money abroad. Large companies and banks use Wise technology too; an entirely new network for the world's money. Launched in 2011, Wise is one of the world’s fastest growing, profitable tech companies. In fiscal year 2025, Wise supported around 15.6 million people and businesses, processing over $185 billion in cross-border transactions and saving customers around $2.6 billion.

Why Work With Us

We’re truly global in who we are, how we work, and how we build. Everything we do is centred around creating a world of money that’s fast, easy, fair. And open to all. Everyone who works here owns a piece of Wise, from the work they do, to the stock they hold.

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Wise Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

We expect new joiners in the office most days to build connections and learn from colleagues for their first six months. After that, most Wisers split their working week between the office and home, typically coming in at least 12 times a month.

Typical time on-site: Flexible
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