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Wise · Tallinn, Estonia

# Fullstack Engineer

Tallinn, Estonia Full-time Operations 

Listed on Wise’s official careers site. Posted September 7, 2026. Check that it is still open and apply there.
[Apply on Wise’s careers site →](https://jobs.smartrecruiters.com/Wise/744000147841209-fullstack-engineer)

[OpenNash Jobs](https://jobs.opennash.com/) / [Wise](https://jobs.opennash.com/companies/wise/) / Fullstack Engineer

## Job description

### About the role

Join us as a Software Engineer in our critical Scam Prevention team. This is a high-impact engineering role with a strong product focus, dedicated to solving complex, real-world adversarial problems to directly protect our global customer base.

### How we work

The Scam Prevention Team The Scam Prevention team is on the front lines, dedicated to safeguarding our platform against sophisticated financial crime. We leverage cutting-edge machine learning, real-time transaction monitoring, and advanced data analysis to create robust controls and detection capabilities. Our vision is to build a globally scalable fraud prevention engine that protects customer accounts, prevents scams, and consistently surpasses regulatory expectations.

What will you be working on?: This defining role involves continuously improving our financial crime prevention infrastructure and systems. You will deliver a direct, measurable impact on customer security by taking end-to-end ownership of projects focused on: Building and refining critical controls to prevent Wise customers from scams. Drive Backend and Frontend for our scam prevention and detection systems - You will be working 80% of the time on a backend and 20% on the frontend You will be delivering a tangible, real-world impact by securing customers' money, accelerating product growth by raising automation levels, and helping us engineer a world-class money transfer product.

## Qualifications

### Engineering Expertise

Professional experience with Java or other JVM-based languages, including the Spring framework. Experience building and designing scalable web applications that handle large amounts of traffic - ideally using React based frontend applications, Javascript / Typescript.

### System Design & Operation

Proven experience designing and operating CI/CD pipelines, Distributed, and Concurrent Systems.

### Product Ownership

A strong product mindset, accountability, and the ability to drive projects independently, making data-driven decisions with the customer in mind.

### Data Proficiency

Experience with relational and non-relational databases, including query optimisation and designing resilient schemas.

### Code Quality

Exceptional fundamentals, sharp problem-solving ability, and a commitment to Test Driven Development and best coding practices.

### Collaboration

Excellent communication skills to articulate complex technical concepts across teams (Product, Data Science, Investigations).

### Nice to Have

Familiarity with the machine learning lifecycle (data pipelines, feature engineering, and deploying ML systems into production).

## At a glance
- Posted by the employer: Sep 7, 2026
- First seen by OpenNash: Oct 11, 2026
- Last checked: Oct 18, 2026
- Listed for: 41 days
- Location: Tallinn, Estonia
- Employment type: Full-time[Apply on Wise’s careers site →](https://jobs.smartrecruiters.com/Wise/744000147841209-fullstack-engineer)

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