Top Engineering Jobs in London

Build and operate scalable backend and frontend systems that prevent account takeovers, scams, and financial crime. Own end-to-end projects, develop real-time detection controls, improve automation, and protect customer funds. The role is approximately 80% backend and 20% frontend, requiring Java/JVM and Spring expertise, scalable system design, CI/CD, database optimization, testing, and strong cross-functional collaboration.

Build scalable AML detection systems and controls for identifying money laundering and terrorist financing risks. Own large projects, technical roadmaps, and delivery while collaborating with engineers, product managers, data scientists, analysts, and AML experts. Design distributed, reliable, secure, observable services; influence product decisions; improve technical quality; and mentor engineers. The primary technology stack includes Java, Spring Boot, and Kafka, with distributed and data-intensive processing at scale.

Staff Backend Engineer responsible for designing and leading scalable Java and Spring Boot services powering global KYC and onboarding verification. The role drives architecture, reliability, automation, performance, and technical strategy; mentors engineers; builds internal agent tools; and partners with product and design. Responsibilities include distributed system design, technical initiative leadership, code reviews, and knowledge sharing. The position requires extensive Java experience, database expertise, strong system design, and security awareness, with financial or KYC experience preferred.

Leads the architecture, delivery, and operational excellence of a high-throughput Risk API and risk assessment platform. Responsibilities include defining API contracts and data schemas, establishing immutable risk evaluation ledgers, ensuring data quality and lineage, scaling the engineering team through hiring and mentorship, aligning Product and Financial Crime stakeholders, and maintaining high availability, low latency, auditability, and regulatory reporting capabilities.

Build and improve fraud prevention infrastructure for account integrity, including account takeover controls and crime detection systems. Develop backend and frontend capabilities, primarily backend, using Java and Spring. Design distributed and concurrent systems, operate CI/CD pipelines, optimize relational and non-relational databases, and apply test-driven development. Own projects independently, make data-driven product decisions, and collaborate with Product, Data Science, and Investigations teams.

Build and maintain backend services for Wise’s Contacts team, powering recipient discovery, management, and customer interactions at large scale. Responsibilities include designing distributed systems, RESTful APIs, database schemas, and query optimization; deploying reliable services; writing testable code; and collaborating with product, design, and analytics teams using an agile, customer-focused approach.

Design, develop, test, and maintain Java and Kotlin backend services, REST APIs, payment orchestration systems, and event-driven financial platforms. Build scalable services on AWS, optimize PostgreSQL databases and SQL queries, and support card pay-in functionality. Collaborate cross-functionally, conduct code reviews, resolve performance issues, participate in on-call rotations, and ensure secure handling of financial data.

Design and maintain scalable Java and Spring Boot backend services in an event-driven microservices architecture. Own public API standards, authentication systems, SDKs, and developer infrastructure while ensuring security, reliability, and excellent partner integration experiences. Provide technical leadership through architecture, code reviews, domain modeling, mentoring, and cross-functional collaboration. Help global engineering teams align with API standards and architecture patterns, with travel to international engineering hubs.

Build and evolve Wise’s scalable compute platform, enabling engineers to deploy and manage services reliably. Responsibilities include architecting infrastructure, automating AWS and application workflows, improving system scalability and resilience, advancing Kubernetes and service mesh capabilities, and leading technical projects while mentoring peers.

Leads design and development of scalable Java and Spring Boot services supporting Wise’s global payments network. Responsibilities include architecting distributed microservices, event-driven Kafka systems, and reliable PostgreSQL data platforms; applying domain-driven design; influencing cross-team architecture; collaborating on partner integrations; mentoring engineers; and raising standards for reliability, observability, maintainability, and technical excellence.