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Wise logoW
WiseEngineering

Software Engineer

London, , United KingdomFull-timeMid-Level£68,000 – £87,500
Posted Oct 26, 2026Deadline: Nov 25, 2026
Job SnapshotActively hiring
LocationLondon, , United Kingdom
Job typeFull-time
Salary£68,000 – £87,500
DeadlineNov 25, 2026

Finjobsly Role Intelligence

Experience level
Mid-Level
Work style
Not specified
Visa sponsorship
Not specified
Salary
£68,000 – £87,500
Key skills
JavaSQLKafkaSpringPaymentsTreasury

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Finjobsly Intelligence— Generated from the employer's job description

What you'll own

Own end‑to‑end features for real‑time treasury ledgers, from ingesting product events to delivering accurate ledger streams, and drive design, code reviews, and production support.

What they're looking for

Solid backend engineers with Java (or similar OOP) experience, good SQL/database knowledge, and a focus on data correctness; familiarity with Kafka, Flink, or stream‑processing and analytical databases is a plus.

Why this role matters

The ledger provides Treasury with a real‑time, accurate view of Wise’s FX risk and liquidity, directly enabling the company to manage money across products and borders safely and efficiently.

Best suited to

Candidates who enjoy solving distributed‑systems challenges, take ownership of their code, are curious about finance (FX, liquidity, accounting), and thrive in collaborative, on‑call environments.

About this role

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.

The opportunity

We are looking for a Backend Software Engineer to join the Treasury Ledger team.

Every time money moves at Wise, Treasury needs to know where it is and in which currency. Our team builds the ledger that answers that question: a real-time, accurate view of Wise's FX position and liquidity.

This is high-volume, event-driven infrastructure where correctness matters. Your work directly supports how Treasury manages Wise's money, and the evolution of the ledger as the business grows.

What will you be working on?

  • Build new specialised ledgers that track Wise's FX risk and liquidity in real time, using modern stream-processing technology.
  • Design real-time reconciliation and data-quality controls that catch discrepancies as they happen, not days later.
  • Bring new Wise products into the ledger as they launch around the world, giving Treasury a complete picture of money moving across products and currencies.
  • Scale the real-time event processing at the heart of Treasury, keeping it fast, resilient and observable as Wise grows.

Technical responsibilities

  • Own features end-to-end, from the product events Wise's systems produce to the real-time ledger streams Treasury relies on, working alongside experienced engineers.
  • Help shape the architecture of new ledgers through design discussions and code reviews.
  • Solve hard distributed-systems problems at scale: exactly-once processing, event ordering, replay and real-time aggregation.
  • Build with a modern stack: Java 25, Spring Boot, Apache Kafka, Apache Flink, MariaDB and ClickHouse.
  • Use AI tooling across the development lifecycle to move faster without compromising quality.

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!

Technical excellence

  • Solid software engineering fundamentals and experience building backend software professionally.
  • Experience with Java or a similar object-oriented programming language.
  • Good understanding of databases and SQL.
  • Care for data correctness and attention to edge cases.
  • Writing well-tested, maintainable code.
  • Willingness to learn new technologies and domains.

Ownership and product mindset

  • Ownership of your work from design through production.
  • Understanding why something is being built and what problem it solves.
  • Curiosity about how FX, liquidity and accounting work.
  • Willingness to take part in incident resolution and post-incident learning.
  • Participation in on-call support for your area when needed.

Influence and collaboration

  • Communicate clearly with engineers, analysts and business stakeholders.
  • Ask questions, share knowledge, and give and receive feedback openly.
  • Contribute to engineering communities or guilds across Wise.

Nice to have

  • Experience with Kafka, Flink or other stream-processing technologies.
  • Experience with analytical databases such as ClickHouse.
  • Experience with event-driven or data-intensive systems.
  • Interest or experience in payments, banking, accounting or another financial domain.

Additional Information

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: £68,000 - £87,500 + RSUs
  • Wise Benefits

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.

More about this role

About company

Wise logoW

Wise

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Required skills

JavaSQLKafkaSpringPaymentsTreasury

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More Software Engineering Jobs→More jobs at Wise→Java jobs →SQL jobs →Salary benchmarks for this role →More jobs in London→Browse all fintech jobs →

Wise

Software Engineer

London, , United Kingdom£68,000 – £87,500

Company insights

64

Happiness score

64/100

Based on 48 verified employee signals

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AI Generated Insights