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Backend Java developer (Assistant Vice President level) at Citibank who designs, builds, and supports enterprise banking applications using Core Java, Spring Boot, and microservices, working with Kafka/MQ messaging, MongoDB, and CI/CD deployments on OpenShift, while mentoring junior analysts.
DotGolf is hiring multiple Senior Backend Integration Developers for a 9-12 month fixed-term mobile app project in Albany, Auckland. The role focuses on building secure, scalable APIs and data integrations with existing live systems, primarily using C#/.NET, SQL Server, and AWS.
Senior backend engineer joining a Christchurch technology team to design, build, and own business-critical services and APIs end to end. Day-to-day work spans C#/.NET services, SQL data solutions, event-driven architecture, and AWS (SQS, DynamoDB, S3, ECS, Lambda), plus mentoring engineers and using AI-assisted development tools.
Senior backend engineer at XE building and modernising services behind a global cross-border payments and FX platform, working hands-on with C#/.NET, SQL, and AWS. Hybrid role in Christchurch or Auckland with ownership of APIs, integrations, reliability, and mentoring.
Description du poste : En tant qu'organisateur de forums de recrutement, Talents Handicap accompagne de très nombreuses entreprises & organisations en France dans leurs recrutements de collaborateurs en…
Enginium is hiring a Java backend developer for its IT support team, on-site in Taranto, Italy. The role involves building Java applications and services with Spring and Spring Boot, integrating with relational and non-relational databases using Hibernate and Maven.
Back-end engineer at Statseeker (Techniche APAC) in Brisbane building a high-performance network performance monitoring platform. Day to day you design and develop C/C++ and Python services, APIs and Unix-level data processing, focusing on performance, scalability and reliability.
Signaturit Group, a European digital transactions platform (e-signature, KYC, legal archiving), is hiring a Senior Backend Developer in Valencia to design and implement modular .NET backend services, write automated tests, take part in architectural decisions, code reviews, and production support.
Backend Java developer at Arktic, a Spanish business/tech consultancy, working remotely with hybrid presence in Madrid. Day to day: building microservices-based applications, deploying and operating them on AWS, using CI automation and writing unit, integration and end-to-end tests. Requires ~5 years of Java backend experience and solid software architecture fundamentals.
Java backend developer at Tuyú Technology building backend services for an international insurance-sector project. Day to day: coding in Java with Spring Boot/Quarkus and MongoDB, applying SOLID and Clean Architecture, unit/integration testing and Agile practices in a hybrid setup based in Barcelona.
Develops and maintains backend and embedded software for parking management and access control systems, writing drivers and integrating hardware such as QR readers, ticket printers, OCR cameras and barriers. The role blends object-oriented business logic with low-level, hardware-close programming.
Placements24 is hiring a fully remote Senior Backend Java Engineer to design, develop, and maintain scalable backend systems and robust architectures. Day to day involves building RESTful APIs, optimizing performance, and ensuring code quality through thorough testing while collaborating with frontend and product stakeholders.
Pontoon is hiring Backend Engineers for a greenfield enterprise AI knowledge platform on a major UK financial services programme. Day to day you design secure, scalable REST APIs and microservices with event-driven architectures, deployed cloud-natively on Kubernetes/OpenShift.
Contract backend engineer role in Rugby, UK, designing and optimising scalable backend services for an enterprise integration and orchestration platform. Day to day involves building secure microservices, API gateways and cloud-native solutions with Java, Python or Node.js, REST APIs, Kafka and Kubernetes, plus CI/CD and observability.
Contract Senior Backend Engineer on a major UK financial services project, designing scalable backend services, REST APIs, microservices and secure integrations using Java, Python and/or Node.js, Kafka, GCP, Kubernetes/OpenShift and OAuth/SAML. Hybrid with 2 days on site across Leeds, Manchester or Edinburgh, running to 20 Dec 2026 with possible extension.
Senior backend engineer joining TransPerfect's TechOps team in London to build scalable backend systems and secure, efficient APIs in C#/.NET. Day to day involves coding, debugging, cross-functional collaboration, and mentoring junior engineers within a global team.
Senior backend engineer designing, building and evolving Node.js/TypeScript applications that power Care ADHD's patient-care platform. Works with product, design and QA teams across the UK and India, contributing to architecture decisions from a hybrid Canary Wharf, London office.
Principal Backend Engineer at a global technology consultancy, taking technical ownership of complex, long-term Java Spring Boot and AWS transformation projects for financial services clients. Based in London or working from home, with a salary up to £120k.
Theia Insights is hiring a mid-to-senior backend engineer in the UK to build scalable async REST APIs with FastAPI and Python, manage large data pipelines using Pandas, Parquet/Arrow, and DuckDB, and own identity and access management via AWS IAM and OAuth2/OIDC. The role runs services on AWS and occasionally touches front-end work in TypeScript/React.
3-month contract (Inside IR35, likely extensions) for a backend engineer to build scalable Python services, secure REST APIs, microservices and Kafka/PubSub event-driven integrations on GCP, supporting AI/AI-agent integration in an enterprise transformation programme. Hybrid, 2 days/week on-site in Manchester or Leeds; £750–800/day.
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