Empleos de senior backend java developer en Barcelona

EXperience IT Solutions, empresa tecnológica con más de 25 años de experiencia, busca un/a Backend Developer Senior Python para un proyecto estratégico basado en GenAI. Definirá arquitecturas escalables, desarrollará librerías y microservicios en Python con FastAPI, y guiará a otros equipos.El candidat@ ideal tendrá experiencia en arquitecturas y...

Adikteev is an AdTech company that helps mobile app publishers grow their revenue through targeted advertising. We deliver personalized ads that drive users to install an app or re‑engage with one they've stopped using. Our clients are mostly mobile gaming leaders but also span e‑commerce, on‑demand services, and entertainment apps. Recognized for 10+...

About SeqeraSeqera is on a mission to empower scientists and organizations to solve humanity’s biggest challenges through data-driven science. As the company behind Nextflow and the Seqera Platform, we enable global enterprises, biotech innovators, academic institutions, and public sector organizations to scale complex data workflows with...

We are a global team of innovators and pioneers dedicated to shaping the future of observability. At New Relic, we build an intelligent platform that empowers companies to thrive in an AI-first world by giving them unparalleled insight into their complex systems. As we continue to expand our global footprint, we're looking for passionate people to join our...

Oxigent Technologies busca un Senior Automation QA para unirse a un equipo en Barcelona. El rol implica impulsar la calidad a lo largo del ciclo de desarrollo, con enfoque en automatización, validación de backend y estrategias de QA para garantizar la fiabilidad de las releases. Se prioriza experiencia en QA Automation, Java, REST APIs y microservicios,...

About SeqeraSeqera is on a mission to empower scientists and organizations to solve humanity’s biggest challenges through data-driven science. As the company behind Nextflow and the Seqera Platform, we enable global enterprises, biotech innovators, academic institutions, and public sector organizations to scale complex data workflows with...

Who we are: At Rover, pets and their people are at the heart of everything we do. We connect pet parents with trusted pet care across the U.S., Canada, Europe, and Australia. Headquartered in Seattle and Barcelona, we’re a values driven, fast-growing tech company focused on building safe and personalized experiences tailored to the needs of each unique...

Location: Barcelona and surrounding areaWorking model: Hybrid - 4 days remote, 1 day per week in our Barcelona officeOffice: KPS Iberia, C/ Pau Claris 162-164, 08037 Barcelona About KPS KPS is a global consulting and technology company delivering digital transformation and e-commerce solutions for leading international clients. At KPS Iberia, you will work...

Semrush Development, S.L.U. is seeking a Senior Backend Developer to deliver enterprise BI dashboards. You will work across Python, Go, and SQL to ingest and present large-scale data with reliability and performance. You’ll build data pipelines, crawlers, and analytical workflows while deploying scalable services on Kubernetes. The role emphasizes...

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact. We’ve just reached unicorn status with a $150 M Series D, accelerating our...

Fullstack Developer Senior (.NET+React)Referencia: # Localización: BarcelonaNuestro cliente es una compañia multinacional del sector aseguradorBuscamos un/a Fullstack Developer Senior con más de 5 años de experiencia para unirse a nuestro equipo de desarrollo. NET (C#) para el backend y de React.js para el frontend.Serás responsable de diseñar,...

Caravelo, based in Barcelona, is seeking a Full Stack Developer focused on Java backend for our SaaS platform in fintech and traveltech. You’ll design, build and maintain scalable systems; most work will be backend, with some UI touchpoints via Vue and AI-assisted coding.Join a team of innovators solving complex problems across cloud environments (AWS),...

We are looking for a Senior Full Stack Developer with strong AI expertise to build and deploy AI solutions in production. Backend and AI integration end to end, in an Agile Scrum team alongside data scientists, AI engineers and frontend developers. Deliverable: working software.Main Responsibilities & Key Activities:- Develop scalable backend systems and...

Fullstack Developer Senior (.NET+React)Referencia: # Localización: BarcelonaNuestro cliente es una compañia multinacional del sector aseguradorBuscamos un/a Fullstack Developer Senior con más de 5 años de experiencia para unirse a nuestro equipo de desarrollo. NET (C#) para el backend y de React.js para el frontend.Serás responsable de diseñar,...

Óscala is expanding its remote-capable Full Stack Senior Developer team to support a growing client base across Europe. You will enhance and maintain the Reseller platform, drive backend tasks in a multidisciplinary squad, and collaborate with Product and Customer Success teams to deliver scalable features with high quality.We value strong CS fundamentals,...

UST – Company Overview More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35,000 employees all over the world and presence in more than 35 countries. We are leaders in digital technology services, providing large-scale technological solutions to leading global...

Senior Backend Developer - Node.JsRemote | EuropeA fast-growing global consumer technology company is looking for a Senior Node.Js Backend Developer to join its international engineering team. The organisation builds innovative real-time digital products used daily by millions of users worldwide. Their platform focuses on creativity, self-expression, and...

UST – Company Overview More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35,000 employees all over the world and presence in more than 35 countries. We are leaders in digital technology services, providing large-scale technological solutions to leading global...

System design feature (60 min)Hi, we’re Back Market.We’re here to help make tech reliable, affordable, and better than new. We're a global marketplace for refurbished devices, helping lower our collective environmental impact by providing trustworthy, affordable tech with 92% less carbon emissions than new.Yep, you read that right. Turns out refurbished...

Join Amaris Consulting and work on payroll and human resources management platforms serving thousands of users worldwide. Be part of an international team, grow in an agile environment, and develop your career within a global group that values innovation, collaboration, and talent. As a Senior Java Developer, you will play a key role in the design,...