Empleos de senior java backend engineer en Zaragoza

Intellia is seeking a Senior Python Backend Engineer to design and build scalable backend services for agent-to-agent communication on AWS AgentCore platforms. You will work on Python-based backends, API integration, and asynchronous event-driven patterns to enable robust multi-agent interactions.The role emphasizes API design, registration and discovery...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior QA Engineer based in Spain.This is a senior individual-contributor role embedded directly within a product squad working on complex, high-risk technology domains. You'll act as the squad's technical authority on quality,...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior QA Engineer based in Spain.This is a senior individual-contributor role embedded directly within a product squad working on complex, high-risk technology domains.You'll act as the squad's technical authority on quality,...

Talent Search People busca un Ingeniero de Software senior con background en Laravel para liderar el desarrollo de servicios backend robustos. Se valorará experiencia con IA agentiva y principios de DDD, con un enfoque en calidad de código y arquitectura.El puesto ofrece contrato indefinido, salario competitivo y posibilidad de trabajar de forma remota...

En NCS buscamos un/a Desarrollador/a Senior Java para incorporarse a un proyecto tecnológico de gran impacto dentro del sector bancario, colaborando con uno de nuestros principales clientes.La persona seleccionada participará en el diseño y desarrollo de soluciones backend escalables, trabajando con arquitecturas modernas basadas en microservicios y...

Octopus Energy is seeking a Senior Frontend Engineer to scale our ES platform and customer onboarding flows.You will own frontend architecture end-to-end, collaborating with international teams across Europe while focusing on Type Script, React, and Next.Js.The role centers on the private area, bill management, and marketing dashboards, with a flexible move...

Location: Remote from Spain (an indefinite Spanish employment contract)We are looking for a Senior Python Backend Engineer to build and integrate agent-to-agent communication capabilities on AWS AgentCore platforms. The role focuses on Python backend development, A2A protocol implementation, agent discovery and registration, event-driven communication, and...

Portless is changing the face of global e-commerce. By decoupling brands from traditional, expensive domestic warehousing, we allow e-commerce companies to ship directly from manufacturing hubs to global consumers in as little as 3-5 days. We are growing fast, and we are looking for an elite, full-stack engineer to help us scale a world-class, globally...

Elastic seeks a Senior Software Engineer to join the Elasticsearch Performance team. You will drive performance optimization across distributed systems, focusing on core design, profiling, and scalable improvements.Responsibilities include implementing performance models, running benchmarks with JMH/Rally, and guiding autmation for profiling and regression...

TechsBCN busca un Desarrollador Backend Blockchain para trabajar de forma remota. Serás clave en el diseño, desarrollo y mantenimiento de nuestras soluciones descentralizadas, incluyendo la arquitectura de contratos inteligentes, la integración con redes blockchain y la construcción de APIs seguras, escalables y eficientes.Colaborarás estrechamente con...

Alpaca is seeking a Senior Software Engineer on the Clearing team to build mission-critical, non-user facing infrastructure that powers broker-dealer operations. You will help expand our self-clearing capabilities and enable new product integrations while maintaining high reliability.The role emphasizes ownership, technical excellence, and collaboration...

Fever seeks a Senior Software Engineer to join the engineering team. You will own the backend design and delivery for scalable services, focusing on Python code quality, robust testing, and deployability.The role emphasizes high concurrency, RESTful APIs, and event streaming, with CI/CD pipelines guiding production readiness. You will work remotely from...

Trading 212 Ltd. is seeking a Senior Frontend Engineer to own complex frontend features across web and mobile. You will design and evolve React and React Native systems, build durable abstractions, and tackle rendering and performance bottlenecks with TypeScript.Collaborate with product, backend, and QA to deliver scalable user experiences while maintaining...

We are looking for a Manufacturing Software Engineer to develop software tools and dataflows to support operations. Our manufacturing process is highly data driven, and our software tools make that possible by following the material from end to end. You'll be working with an experienced team of mechanical, electrical, metrology, and manufacturing engineers;...

Jobgether SRL is seeking a Senior Full Stack Engineer (NET/React) based in Spain to build scalable, secure, and high-performing applications across backend and frontend layers. You will work with .NET/C#, React, Redux, and JavaScript, shaping architecture and development practices, and contributing to cloud-based solutions on GCP with CI/CD.You will mentor...

Building the Future of Open FinancePayward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open, global financial system.Before you apply, we...

Simple Life is the #1 AI-powered health coaching app for adults who want to lose weight and enjoy a healthier lifestyle-without the stress or extremes. Our mission is to empower people to feel their best every day. By challenging traditional, restrictive approaches, Simple offers a more sustainable method grounded in ease, personalization, and real-life...

About EveryWatchEveryWatch is the largest and most trusted data source in the secondary watch market. Established by a group of watch lovers, EveryWatch was created in response to the increasing popularity of luxury timepieces, with the aim of bringing unprecedented transparency and insight to the watch market. The first platform of its kind, EveryWatch...

QA Engineer, Tax, Compliance and ReportingThe role and the teamAs a remote Senior QA Engineer, Tax, Compliance and Reporting (all genders), you'll own quality across manual and automated testing for the teams building Lucanet's tax platform, spanning e-balance and VAT, while helping developers take growing ownership of their own testing.You'll work with two...

Elastic's Observability Streams team is building Elastic's unified data pipeline and the backend services powering Logstash. You will design, build and operate features in Java and Golang, contribute to the OpenTelemetry Collector, and help deliver reliable data routing at scale.This remote-first, globally distributed role demands strong communication, deep...