Senior Software Engineer - Global KYC and Onboarding

Posted Yesterday
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London, Greater London, England, GBR
Hybrid
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
Own the technical roadmap and delivery of large-scale backend projects for Wise’s global KYC and onboarding systems. Design scalable microservices, clean APIs, asynchronous integrations, and risk mitigation systems while improving reliability, security, performance, and compliance. Lead cross-team initiatives, make data-driven technical decisions, address technical debt, mentor engineers, and build maintainable systems using relational and non-relational databases.
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.

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

Job Description

We are the Global KYC and Onboarding squad in the Servicing department and we have a mission: to enable teams at Wise to expand and fine-tune the business in a "config change" manner all across the globe, while remaining compliant and safe for the customers. There are three teams in the squad: Business Onboarding Verification, Personal Onboarding Verification and Wise Platform Verification (our B2B platform).
  
The scale we operate at: In FY2025, 15.6 million people and businesses used Wise, we onboarded over 5.9 million new customers (~500k/month), and moved £145.2bn across borders (~£400m/day) across 160+ countries and 40+ currencies. Our verification systems aren't supporting tools — they're core production infrastructure that protects customers, enables growth, and must stay reliable under constant change in regulations, policies, and evolving threat patterns.
  
All of the teams are diverse, cross-functional groups passionate about solving complex problems with elegant solutions. We bring together backend and frontend engineers, mobile developers, designers, data analysts, and product managers who collaborate closely to deliver exceptional customer experiences. Our teams are responsible for the critical verification journeys that business and personal customers complete before using Wise's products. We own the entire verification lifecycle – from document collection flows and automated review systems to agent tooling and compliance monitoring. We operate with high ownership in a bottom-up, transparent culture, make data-driven decisions, and celebrate both technical excellence and customer impact. Right now we're focused on building KYC/FinCrime as a configuration-driven product, refactoring and building new scalable microservice systems, and increasing automation using ML/AI where it genuinely improves decisioning, review quality, and operational efficiency — with safe fallbacks and clear observability. As a team that touches both regulatory requirements and customer experience, we have unique opportunities to innovate in a space traditionally resistant to change.
  
By joining one of our teams, you'll directly impact these customers by transforming a traditionally frustrating experience into one that's fast, intuitive, and fair. Your code will help individuals and small businesses access global banking faster, enable entrepreneurs to pay international employees on time, and allow people like you and your teammates support their families across borders without friction. We're not just building verification systems – we're removing barriers that stand between our customers and their financial freedom.
  
We need like-minded engineers in all the teams in the squad, so we'll use the interview process to discover where your unique skills shine brightest. Ultimately, we want to match you with the team that perfectly aligns with your experience and sets you up for success!
 

As a Senior Software Engineer, you will own large-sized, impactful projects within the domain. Your responsibilities span end-to-end:

  • You will own the technical roadmap for your areas of ownership, ensuring they address important technical debt, reliability, scalability, and security concerns.

  • You will be instrumental in designing and implementing robust backend systems that provide clean APIs and interfaces to hide the internal complexity.

  • You will drive the integration with various risk and mitigation systems to ensure that Wise is compliant.

  • You will take initiative to identify and solve impactful problems both within your team and beyond, contributing to high-impact cross-team initiatives.

 

What we expect from you:

  • You have 4+ years of experience working with any language, asynchronous message queues (e.g., Kafka, RabbitMQ), and have architected and built highly scalable microservices.

  • A strong product mindset and a deep passion for both customer experience and regulatory compliance. 

  • You will prioritize work with a holistic view of the customer and business impact, making data-driven decisions to solve complex, ambiguous problems.

  • Exceptional communication skills, with the ability to articulate complex technical and architectural concepts clearly to diverse audiences, including product managers, designers, and other engineering teams.

  • You demonstrate a commitment to writing clean, testable, maintainable, and highly performant code, and you are a strong advocate for best coding practices and rigorous code reviews.

  • Proven ability to identify and lead the technical delivery of large-scale, organisationally-complex projects, adept at anticipating and escalating organizational blockers.

  • Extensive experience working with relational and non-relational databases, including advanced query optimization, schema design, and data lifecycle management for sensitive information.

 

What does success look like?

  • You’ll have deeply embedded yourself within our mission, owning and delivering quarterly goals for the team, significantly impacting our ability to scale and improve verification processes.

  • You’ll own the technical roadmap for your areas, ensuring it supports both immediate delivery needs and long-term strategic objectives, including addressing technical debt and improving system health.

  • You’ll leverage your expertise to identify the right solutions to solve ambiguous, open-ended problems, driving tough prioritization decisions that deliver clear business and customer value.

  • You’ll consistently define and implement technical solutions or efficient operational processes that level up your team and contribute beyond it, mentoring other engineers and sharing best practices.

  • You’ll inspire a high-performing team environment where ideas are shared, technical excellence is pursued, and continuous learning is embraced.

Additional Information

  • Unfortunately we cannot offer relocation for this type of role but we can sponsor internal VISAs

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

  • 4+ years of software engineering experience
  • Experience working with at least one programming language
  • Experience with asynchronous message queues such as Kafka or RabbitMQ
  • Experience architecting and building highly scalable microservices
  • Strong product mindset and understanding of customer experience and regulatory compliance
  • Ability to make data-driven decisions and solve complex, ambiguous problems
  • Exceptional communication skills for explaining technical and architectural concepts
  • Experience writing clean, testable, maintainable, and performant code
  • Experience with best coding practices and rigorous code reviews
  • Ability to lead technical delivery of large-scale, organizationally complex projects
  • Experience with relational and non-relational databases, advanced query optimization, schema design, and data lifecycle management for sensitive information

What the Team is Saying

Wise Compensation & Benefits Highlights

  • Leave & Time Off Breadth — U.S. materials describe extensive paid leave (PTO, sick time, holidays, “Me Days,” volunteer and compassionate leave) plus a paid six‑week sabbatical after four years. Feedback suggests the time‑off package is a standout element of the offering.
  • Parental & Family Support — Benefits information highlights up to 18 weeks of fully paid parental leave in many locations, with clear tenure qualifiers in some markets. Feedback suggests these policies are robust and a notable strength.
  • Equity Value & Accessibility — Company and job-posting materials indicate RSUs are a regular part of compensation, with a shift toward RSUs since 2022. Feedback suggests the equity component is a relatively substantial part of total rewards.

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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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