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Senior Backend Engineer at Experian (hybrid, London) who designs, builds, and operates production backend APIs and data-focused services, owning the full SDLC and collaborating with engineers, product managers, and data scientists. Core stack: Python and AWS.
Senior Backend Engineer at CCP Games' Fenris Creations team in London building EVE Vanguard, a new game set in the EVE Online universe (rendered in Unreal Engine 5). Day to day: building AWS cloud infrastructure, CI/CD pipelines, monitoring, and game features/tools in Golang, plus joining a paid on-call rota after launch.
Senior Backend Engineer at Xe in Bracknell owning end-to-end work on a cross-border payments platform: shaping API design and data models, building and modernizing backend services, and owning production reliability while mentoring engineers and partnering with product, compliance, and operations teams.
Senior Backend Engineer at Addition, owning production systems and building robust APIs for a well-established SaaS platform used by thousands of customers globally. The role centers on distributed services, cloud-native deployments, and third-party integrations, with a focus on reliability, observability, performance, and mentoring teammates.
Backend engineer on Wise's Contacts team in London, building the backend services that let customers add, find and manage payment recipients — from the platform securing millions of bank accounts to search algorithms and local integrations. Core stack: Java, large-scale distributed systems, REST APIs, and relational/non-relational databases.
Depop is hiring a backend engineer for its Search and Retrieval team in London to maintain, scale and improve the search system serving 1M+ daily active users, working with mobile, web and ML/data-science teams. Core stack: Scala/Java/Python, Elasticsearch/OpenSearch, AWS datastores (DynamoDB, Athena), Kafka and PostgreSQL.
Backend engineer on Wise's Contacts Team building scalable backend services for managing money-transfer recipients, with end-to-end delivery in an autonomous team. Hybrid role in London (teams also operate in Tallinn), paying £68k–£87.5k plus RSUs and benefits.
Java software developer building large-scale, business-critical platforms in a highly regulated domain for a UK technology business. Remote-first with a monthly office visit near South Manchester; day-to-day work is Agile/XP (TDD, pairing, CI) on a Java 17/Spring Boot stack with React, AWS serverless, Terraform and Kubernetes.
Ocho People is hiring a Senior Java Engineer (hybrid, Belfast) for a product-led technology company. The engineer designs and scales core Java backend services on AWS, shapes architecture and engineering standards, and mentors other engineers.
Junior Java developer at LMAX Group in London working on its high-performance, ultra-low latency trading exchange written in core Java. Day to day involves greenfield projects, pair programming, and performance-critical work across the stack with Kubernetes, Nomad, Docker, Kafka, and MySQL.
A 9-month software developer placement (June 2027–March 2028) at Symphony in Northern Ireland for university students. The student works alongside senior developers across the software development lifecycle — coding, debugging, code reviews, and learning tools/frameworks — using languages such as Python, Java, or C++.
A senior engineer builds and maintains Roche's Therapeutic Molecule Registration platform — a cloud-native system consolidating molecule registration into one platform for AI-driven drug discovery. Day-to-day is Python-centric development (with Java/Kotlin), designing REST APIs and microservices on Postgres and AWS to serve molecular data to research and ML teams at massive scale.
A junior C++ developer joins Options' Market Data division in Cambridge to build and maintain low latency trading platforms across the full development lifecycle. Core stack: C++ with STL/Boost, Linux/Unix, BASH/Perl/Python scripting, and Agile practices with TDD and CI/CD.
Junior Java developer at LMAX, a high-performance, ultra-low-latency financial exchange in London. Day to day involves pair programming on a distributed, event-driven core Java stack (MySQL, Kafka), with some Vue.js frontend, Python data analytics, and Kubernetes/Nomad deployment in a strong continuous-delivery culture.
Junior Java developer at LMAX, an ultra-low-latency financial exchange built in core Java. Day to day involves pair programming and working across the stack: distributed, event-driven Java backends with MySQL and Kafka, Vue.js frontends, and Kubernetes/Nomad deployment, within a strong CI/continuous-delivery culture.
Senior Python Engineer at a hedge fund's commodities trading business in London, building research infrastructure, real-time event-driven trading platforms, and distributed data systems. Core stack includes Python with Docker, Kubernetes, Kafka, MongoDB, and quantitative libraries like NumPy and PyTorch.
First developer hire on a systematic hedge fund's options and volatility desk in Central London, building Python infrastructure and tooling that quant researchers and traders use for investment decisions. Core stack is Python with cloud-native exposure to AWS and Kubernetes; role is onsite 5 days per week.
Python engineer at an algorithmic trading firm specialising in digital assets, building core systems used across trading, quantitative research and operations. Requires 2+ years of Python and Linux experience, with C++ and an interest in finance or crypto seen as a plus.
Principal engineer at Lumen (CenturyLink) serving as the technical authority for MuleSoft-based enterprise integrations and Salesforce-connected systems — designing API-led connectivity, orchestration, and event-driven patterns, and setting API and engineering standards. Remote (work from home) within the US; core stack is Salesforce, MuleSoft Anypoint, and RAML/OpenAPI-driven APIs.
Wiliot is hiring a Product Manager in Tel Aviv to lead its cloud-based IoT platform, owning strategy, roadmap, requirements, and metrics while partnering with engineering, design, data, and customer success. The role centers on B2B cloud/SaaS product management for IoT connectivity, data management, and analytics.
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