CareerPlan

Senior Software Engineer I - Account Integrity

London, England, gbFull-time£88k–£111k2026-10-27 → 2026-11-10
Hybrid

Core

Senior Software Engineer building and refining financial crime prevention infrastructure to protect customer accounts from fraud and scams.

Role type

Senior IC backend/frontend software engineer (financial crime prevention)

Builds

Real-time transaction monitoring systems, fraud detection controls, and scalable money transfer product features

Domain

Fintech / Financial Crime Prevention / Cybersecurity

Deliverable

production ML models | product features

Required skills

Java, Spring framework, React, JavaScript/TypeScript, CI/CD pipelines, Distributed systems, Relational databases, Non-relational databases, Test Driven Development

Preferred skills

Machine learning lifecycle familiarity, Feature engineering

Technologies

Java, Spring, React, JavaScript, TypeScript, CI/CD tools, SQL, NoSQL

Responsibilities

Design and operate scalable web applications handling high traffic; Build and refine controls to prevent account takeovers; Drive backend (80%) and frontend (20%) development for crime prevention systems; Optimize database schemas and queries; Implement Test Driven Development practices.

Seniority

Senior, hands-on IC