Staff Applied ML Engineer - Financial Crime

Wise; Greater London; On-site; GBP 145,000 - 182,000; Full time

Benefits offered by this job

Wise Benefits

RSUs

Job summary

Wise moves billions across borders and is building the next generation of financial crime risk detection. We are hiring a Staff Applied ML Engineer to lead architecture, ship production neural models, and scale ML across FinCrime domains.

Based in London, you will work with data scientists and platform engineers, own end-to-end ML solutions, and mentor teams on best practices for production ML at scale, security, and latency requirements.

Qualifications

• Production experience shipping DL models at scale with real traffic and latency constraints.
• Ability to make architecture-level decisions independently and justify tradeoffs.
• Experience designing ML systems with hard latency and throughput requirements.
• Strong fundamentals in deep learning: gradients, attention, graph message-passing, sequence modelling.
• Track record of influencing technical strategy across teams.
• Proficiency in Python, PyTorch, distributed training, and ML pipelines.

Responsibilities

• Design and ship ML and deep learning models for risk detection at scale.
• Define architecture strategy for applying modern ML to risk domains.
• Build end-to-end ML pipelines from experimentation to production.
• Evaluate foundation models and embedding approaches for transaction representation.
• Collaborate with Data Science on model evaluation and experimental design.
• Mentor engineers and scientists on ML fundamentals and production practices.

Skills

DL models at scale

Architecture decisions

Latency/Throughput optimization

Deep learning fundamentals

Tech leadership

Python & PyTorch

Tools

PyTorch

Distributed training frameworks

Job description

Company Description

Wise is a global technology company, building the best way to move and manage the world’s money.

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

Wise moves billions across borders every year. Behind every transaction is a decision: is this safe? Our ML systems make that call - at scale, in real time, across every market we operate in.

Our Risk ML team is building the next generation of financial crime detection at Wise - investing in modern architectures like deep learning, graph neural networks, and foundation models to detect increasingly sophisticated fraud and money laundering patterns. We're looking for a Staff Applied ML Engineer to lead this evolution: defining the architecture strategy, shipping production neural models, and building the blueprint that scales across FinCrime domains.

This is a greenfield opportunity - you'll be setting the direction for how Wise applies modern ML to financial crime risk, with strong investment and engagement from senior leadership.

How We Work

Risk ML sits within Wise's FinCrime organisation, owning the full ML and AI foundation for financial crime detection. We’re scaling into three dedicated pillars - Feature Platform, Learning Loop and Risk Modelling. You'll sit in Risk Modelling, working alongside data scientists, platform engineers, product and domain experts.

We operate with high autonomy and low hierarchy. You’ll own problems end-to-end - from research and architecture decisions through to production deployment and impact measurement. We value engineers who shape direction, not just execute tickets.

What will you be working on?

• Designing and shipping ML and deep learning models for financial crime detection - sequence-based, graph-based, attention-based - serving real-time decisions at Wise's scale
• Defining the architecture strategy for how Wise applies modern ML to risk - which model families, which serving patterns, which training paradigms
• Building the reusable end-to-end pipeline pattern - from experimentation through training to production deployment - that future models follow
• Evaluating and prototyping foundation model and embedding approaches for transaction representation across FinCrime domains
• Partnering with Data Science on model evaluation, experimentation design and causal measurement in domains where clean A/B testing isn't always possible
• Mentoring engineers and data scientists on modern ML fundamentals, production best practices, and architectural decision-making

What do you need?

• Production experience shipping deep learning models at scale - systems serving real traffic under latency constraints
• Ability to make architecture-level decisions independently - model selection, training infrastructure, serving strategy - and explain the reasoning and tradeoffs
• Experience designing ML systems with hard latency and throughput requirements, including optimisation decisions (quantization, pre-computed embeddings, batching strategies)
• Strong fundamentals in deep learning: gradient dynamics, attention mechanisms, graph message-passing, sequence modelling
• Track record of influencing technical strategy across teams - you don't just build, you shape direction
• Python, PyTorch (or equivalent), distributed training, ML pipeline orchestration

Nice To Have

• Experience in FinCrime, fraud detection, AML, or regulated financial services
• Experience with graph-based methods (GNNs, entity resolution, link analysis) in production
• Foundation model fine-tuning or LLM evaluation experience
• Experience establishing modern ML practices in organisations scaling their ML capabilities

Interested? Find out more:

• How we work – a practical guide
• DEI @ Wise
• Wise Tech Stack (2025 update)
• See what it's like to work at Wise London!
• Our Engineering career map
• Wise Engineering – https://medium.com/wise-engineering

What Do We Offer

• Starting salary: £145,000 - £182,000 + 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.

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