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Senior Backend Engineer designing and building scalable cloud-based services with Java and Spring Boot, while mentoring engineers and driving architectural decisions.
Build and optimize backend systems for cross-border money movement, including card payments, treasury, and crypto liquidity using Java 25.
Senior hands-on Backend Engineer building scalable backend services in C#/.NET and ASP.NET with database systems for a global sports trading business, working onsite in London Monday–Friday.
Senior Backend Engineer owning high-performance Java/C++ backend systems, APIs, and microservices in Linux environments, with technical leadership, mentoring, and DevSecOps responsibilities.
Senior Backend Engineer on the Payments team at Depop, designing robust backend solutions for a marketplace serving millions of daily users with Scala, Python, PostgreSQL, DynamoDB, AWS, and Kubernetes.
Senior contract backend engineer building Java/Kotlin services and APIs with Spring Boot on Kubernetes, owning integration flows and leading design discussions for a new team.
Designs and optimizes high-performance backend systems for a gaming platform, focusing on scalable services and cross-functional collaboration to deliver robust APIs.
Senior backend engineer building and maintaining systems for the FollowScores app, delivering data to iOS/Android via WebSocket and REST APIs using Go, Redis, and GCP in a hybrid role in Manchester.
Build scalable backend APIs for pricing/revenue systems in a fintech product company, owning tech solutions that drive business growth and global scale.
Senior Backend Engineer for Depop’s peer-to-peer fashion marketplace, designing scalable systems for 1M+ daily users. Core focus: payments, event-driven architectures, and backend/data workflows in Scala/TypeScript with PostgreSQL/Kafka.
Senior Backend Engineer building scalable backend systems and REST APIs for a consumer lending platform using Python, Django, PostgreSQL, and AWS in a hybrid London role.
Build and maintain backend systems for the FollowScores app using Golang, Redis, and GCP, delivering WebSockets and REST APIs to iOS/Android clients while leading a developer team in a hybrid UK role.
Have you worked in a fast-paced start-up environment? Senior Backend Engineer – AI transforming the future Location: Hybrid in London approx. 1-2 days a week (flexible work hours) We are very excited to have just…
Senior Java Engineer in London leading AI-enabled modernisation of large-scale platforms, migrating legacy apps to microservices/APIs and leveraging AI-assisted development for code analysis, testing, and automation.
A Senior Java Engineer will design, build, and optimize Java-based backend services and APIs for a London-based tech company’s large-scale, mission-critical platforms, focusing on performance, scalability, and system reliability.
Build and scale a transaction-heavy HRIS platform covering attendance, overtime, reimbursement, and payroll using Golang and PostgreSQL.
Senior Backend Developer building high-performance Go microservices with RESTful/gRPC APIs, relational and NoSQL databases, and Kafka/Pulsar message brokers in Jakarta.
Build and scale a core HRIS platform handling payroll, attendance, and reimbursements using PostgreSQL and Go.
Design, develop, and scale robust APIs and microservices across distributed systems using Golang, Java Spring Boot, or Python, alongside various databases and container platforms like Docker and Kubernetes.
Design, develop, and maintain scalable enterprise back-end services using .NET or Java while collaborating with cross-functional teams in an Agile environment.
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