Empleos de senior java fullstack engineer for api en Barcelona

Senior Software Engineer Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and...

Trading-21 is seeking an experienced QA Automation Engineer to own the QA process for multiple projects and lead automation efforts. You will design and maintain automation scripts, participate in design reviews, and mentor junior teammates to ensure high-quality releases. The role requires strong programming skills (Python/TypeScript/Java/etc.), experience...

Overview Senior Backend Engineer position at Parser, a boutique technology services and consulting firm founded in 2018. Parser helps global organisations solve complex business challenges through digital transformation, product development and AI enablement. We are a fast-growing team of 340+ engineers and consultants across Europe, the Americas, and the...

One of the companies we collaborate with at Joppy is looking for a **Senior Network & Security Engineer** to design, administer, and maintain reliable network and security infrastructure supporting critical IT and operational technology environments. **🎯 Responsibilities** - Lead the design, deployment, and integration of enterprise and industrial...

A leading technology solutions company in Spain is seeking a Senior Distributed Systems Engineer to design and implement distributed components for large-scale data processing. The ideal candidate will have 5+ years in IT, with 3+ years focused on distributed systems using Java or Scala. Offering remote work, excellent compensation, and a supportive...

* Assigned Recruiter(s) Suchitra Garikapati * Date Opened 09/17/2026 * Country Spain * Job Posting ID ZR_4444_JOB What is the mission about? Job Description At NextLink, we are looking for a Senior Security Engineer (SIEM) to join our team and collaborate closely with one of our most recognized clients in the pharmaceutical sector. You will join the Cyber...

UST España & Latam is seeking a Senior Android Engineer to join a multidisciplinary Mobile Engineering Team in Spain. You will design and develop high-quality Android apps, mentor others, and influence technical decisions while collaborating with product owners, designers, and engineers. Required: 5+ years of Android experience, Kotlin/Java, strong English,...

Overview Do you want to work for one of the biggest consulting companies in Spain, with a focus on building meaningful business impact while maintaining a healthy life balance? Our motto is: \"Life before work\". At mediasmart we are looking for a software engineer to join our team, whose main function will be to develop for the main products we offer to...

Parser is seeking a Senior QA Engineer to safeguard quality across complex data flows and AI-driven products, with a focus on conversational agents. You will design automated tests, validate data outputs, and ensure safe, reliable behavior of generative AI systems. The role requires 8+ years in QA, strong automation experience with JS/Python, API testing,...

A leading technology company is seeking a Senior Go Software Engineer to join their team full-time in Spain. Responsibilities include writing effective Go code, resolving technical issues, and applying best practices like TDD. The ideal candidate has extensive experience with distributed systems, API development, and a collaborative mindset. Benefits include...

mediasmart, part of the Affle group, is looking for a Senior Full Stack Engineer to join our product technology team. You will develop for our main products: the API and the web frontend, serving large agencies and direct customers across the globe. You will own features end-to-end from concept to deployment, collaborate with cross-functional teams, and...

About Neo4j Neo4j is the graph intelligence platform that transforms data into knowledge to power the next generation of intelligent applications and AI systems. It includes enterprise-ready knowledge graphs for accurate, explainable, and governed AI; the most comprehensive, trusted, and easy-to-deploy graph capabilities across any environment and data...

We are looking for a senior Ruby on Rails engineer to become the technical backbone of our product. You'll own the hardest PRs, raise the bar for the entire codebase, and eventually take technical load off the CEO. This is not a management role. It's a hands-on, high-trust position for someone who can ship production code across every part of the product....

Senior Full Stack Engineer (Remote in Spain Possible) Apply for the Senior Full Stack Engineer role at LanguageWire, a global leader in language and content services dedicated to helping brands reach their full global potential. About the Role You will help modernize our core application and develop valuable features for our translators, customers and...

Senior Data Engineer – Huxley Join to apply for the Data Engineer role at Huxley. We are looking for a Senior Data Engineer to participate in a large-scale project. The project consists of defining the data strategy to enable acceleration and onboard multiple data sources. Requirements * Azure Synapse Analytics (pipelines, notebooks, SQL pools) * Azure...

About Frontiers At Frontiers, our purpose is simple yet ambitious: to make science open. We believe open science empowers the global scientific community to accelerate discovery and develop the solutions needed for healthy lives on a healthy planet. We are one of the world’s largest and most influential open-access research publishers. Every article we...

Want to put your job search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles. Sign up now at https://app.calyptus.co/auth/candidate/sign-up and let the opportunities come to you. The Role We are seeking an experienced Backend Engineer who is excited to build the technical backbone...

Titles? Meh, we’re not big on them, but let’s call this one Data Scientist like the other colleagues at the team As part of our international AI/ML squad, you’ll craft tailor-made solutions that wow our clients. We’re hunting for a passionate Senior AI Engineer with a solid technical background. Your mission? Train, deploy, and put groundbreaking...

One of the companies we partner with at Joppy is looking to hire a **Performance Engineer** passionate about driving the performance of web applications through systematic testing, optimization, and a collaborative approach. **🎯 Responsibilities** - Conduct regular performance, load, and stress tests on web applications to ensure compliance with defined...

DescriptionIs this you? Titan Operating System S.L. (Titan OS), the Barcelona-based technology, entertainment, and advertising company, is looking for you!Our platform combines content discovery and advertising technology in one solution, helping leading TV brands unlock greater value. Titan OS powers devices from major brands including Philips, AOC and JVC,...