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Desarrollador/a Backend Java Senior
Senior Java backend developer working autonomously on microservices with Spring Boot, PostgreSQL/MongoDB, and event-driven messaging (Kafka/RabbitMQ), applying reactive programming, DDD, Docker-based testing, cloud-native architectures, and AI-assisted dev tools. The position is 100% remote from Madrid.
Desarrollador Backend Java Senior – Hybrid y Crecimiento
3MT Global Services seeks a senior Java backend developer in A Coruña (hybrid) to build solutions end to end, from analysis through production, collaborating on technical design and code review using Java, Spring Boot, event-driven microservices and documented REST APIs.
Desarrollador Backend Senior .NET & SQL Server - Remoto 100%
Senior backend developer who develops, maintains, and evolves enterprise systems on a project linked to In Flights TFL. Fully remote (or from San Fernando de Henares, Madrid), working with .NET, C#, VB.NET, and SQL Server on a stable team focused on data reliability.
Senior Java Backend Engineer
Senior Java backend engineer for a 6-month contract (extendable, start mid-November) building and scaling a client's Voice Provider platform — designing robust, scalable backend services and APIs for production speech-generation tech. Remote work allowed but you must be based in Sweden.
Senior Backend Developer
Senior Backend Developer in Lottomatica's Operations & Technology department in Rome, designing and evolving scalable .NET 8+/C# microservices: REST APIs, event-driven integrations (RabbitMQ/MassTransit), SQL Server/MongoDB/Redis, Docker/Kubernetes and CI/CD, while mentoring the team.
Senior Backend Developer
Senior Backend Developer at Lottomatica, Italy's largest regulated gaming operator, designing and evolving .NET 8+/C# microservices: RESTful APIs, event-driven integrations, SQL Server/MongoDB/Redis data layers, and Docker/Kubernetes deployments, plus mentoring and technical decision-making. Hybrid role in Rome; €55–60k gross annual.
Senior Backend Engineer (Trading)
Build and optimize core crypto trading systems for Coins, a Philippine crypto exchange serving 18M+ users. Day-to-day Java work on matching engines, order handling, settlement, and market data with a focus on low-latency, high-concurrency distributed systems using Netty, Disruptor, Kafka, Redis, and MySQL.
Java Backend Developer Sênior - REMOTO
Senior remote (Brazil) Java backend developer at digital-engineering consultancy Verity Group: design and build scalable Java/Spring Boot microservices and REST APIs, using PostgreSQL/MySQL, MongoDB/Redis, Kafka/RabbitMQ/SQS, Docker/Kubernetes and CI/CD, while mentoring junior developers and ensuring code quality and security.
Java Backend Developer Sênior - HIBRIDO
Senior Java backend developer (hybrid, São Paulo) at Verity, a digital transformation and engineering consultancy. The person acts as the squad's technical reference — evolving Java/Spring Boot microservices, APIs, CI/CD and observability, troubleshooting production issues, and mentoring other developers.
Desarrollador backend .NET Senior (con Claude Code) - Híbrida - Microcentro
Senior .NET backend developer who designs and maintains REST APIs in ASP.NET Core with SQL Server, using Claude Code and AI agents as the core development workflow, deployed on Azure with DevOps practices. Hybrid role in Argentina (Rosario / Microcentro).
Sr Software Engineer Backend
Tenemos una oportunidad para vos, estamos buscando Sr Software Engineer Backend para sumarse a nuestro equipo de Purchase dentro de nuestro dominio de Payments . Diseñar y desarrollar microservicios escalables y…
Desarrollador de Software Backend Senior (Microservicios)
Senior backend developer in Tijuana designing, building, and maintaining scalable microservices-based backend systems and APIs for a tech company's product. Core stack includes Java/Python/Node.js, REST APIs, SQL/NoSQL databases, cloud platforms (AWS/Azure), and Docker/Kubernetes with CI/CD.
Desarrollador Backend Senior (Java/.NET/Python)
Senior backend developer for IT consulting firm ids Comercial TI, building backend services in Java, .NET or Python with microservices and unit testing. CI/CD and a Lean & Agile mindset are valued; the role supports digital transformation projects for diverse enterprise clients.
Desarrollador Backend Senior - Cloud (Remoto | Stock)
Placements24 is hiring a Senior Backend Developer for a fully remote team building SaaS solutions. The role centers on designing scalable APIs, microservices, and cloud infrastructure, working across Python/Java/Node.js/Go alongside product and DevOps, and mentoring junior engineers.
Desarrollador Backend Senior Con Experiencia En Cloud
Senior backend developer (hired via staffing firm Placements24) for a fully remote SaaS client: designing, building, and maintaining scalable APIs, microservices, and cloud infrastructure. Core stack spans Python/Java/Node.js/Go, AWS/Azure/GCP, Docker/Kubernetes, and SQL/NoSQL databases.
Senior Backend Engineer
MyOme’s mission is to provide clinically actionable genetic information to patients throughout their lives. We combine clinical-grade whole genome sequencing, advanced AI methods for genome interpretation, and seamless…
Senior Backend Engineer – AI-Driven Cloud APIs
Senior backend engineer at Cresset building drug discovery cloud services, REST APIs and web applications with Python (FastAPI/Django). Day to day: designing APIs, automated pipelines and AI workflows, owning projects to production, and mentoring peers.
Senior Python Backend Engineer for AI-Powered APIs
Senior Python backend engineer at Thrive IT Systems in Sheffield, building scalable REST APIs and Generative AI/LLM-powered applications. Day to day: designing data models, integrating LLMs, cloud-native development, CI/CD pipelines, PyTest testing, and secure coding with modern DevOps tooling.