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 DescriptionWe're looking for an experienced Senior Backend Engineer to join our Rules Platform Team.
This team is responsible for Wise's critical rules engine, which includes the tool used to manage our risk assessment rules.
As a senior member of this team, you will be a key technical voice. You will lead and contribute to impactful, cross-functional engineering initiatives, drive critical system architecture and technical design decisions, and ensure high service standards by monitoring and optimizing the system performance. You will also actively participate in strategic planning, shaping the product roadmap and defining the future evolution of the platform.
What will you be working on?
You will join the team at an exciting time of growth, as we scale our core risk assessment capabilities. The core challenge is to evolve our rules engine and internal libraries to support growing demand and complexity from teams across Wise.
Your immediate impact will be to:
Drive Complex Initiatives: Lead the design and implementation of complex backend initiatives that form the foundation of our risk platform.
Own Core Components: Take ownership of maintaining and evolving the internal libraries and shared components consumed by multiple teams, ensuring they are robust, scalable, and well-documented.
Design for Scale: Contribute directly to the architectural design and scaling of our risk assessment services, ensuring they meet high standards for performance, reliability, and data consistency.
Collaborate for Impact: Work as a key technical partner with multiple stakeholders—including Product, FinCrime, and other engineering teams—to deliver robust, cross-functional solutions.
You'll work in a collaborative environment where you can influence key technical decisions, mentor other engineers, and help define how we scale our platform. It's a strong opportunity to grow into greater technical leadership and work on complex, meaningful problems at scale.
QualificationsWhat do you need?
Strong proficiency in JVM-based languages (e.g., Java, Kotlin).
Proven experience maintaining internal libraries or shared components consumed by multiple teams.
Experience working with Kafka and SQL databases in complex backend systems where reliability and data consistency are critical.
Strong mentorship skills with a passion for supporting and leveling up junior engineers.
The ability to prioritize, evaluate tradeoffs, and make informed technical decisions, and comfort in leading technical discussions and architecture proposals.
Proactivity and a collaborative mindset, with experience working closely with Product Managers on decision-making.
Some extra skills that would be useful:
Experience with the Spring framework.
Experience building or working with custom DSLs (Domain-Specific Languages).
Background in the FinCrime domain, risk decisioning teams, or regulatory environments where auditability and traceability are important.
Additional InformationInterested? 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
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.
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What the Team is Saying
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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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.
