Empleos de senior javascript engineer en Barcelona

Cross River builds the infrastructure behind the world’s most innovative financial products. Our technology and capital solutions power payments, cards, lending, and digital asset capabilities that move money safely, instantly, and inclusively — trusted by leading fintechs, enterprises, and disruptors across the globe.Our mission is simple: to build the...

FNZ is seeking a Software Engineer to join THE HOKUS PLATFORM team in Barcelona. The role involves analyzing, designing and developing tests to build robust new features in an agile environment, and delivering ongoing maintenance and enhancements across systems for life insurance partners. You will collaborate with data scientists, business users and...

Alpega is the trusted execution platform shippers and carriers across Europerelyon to plan, procure, and execute road freight - every day, at the speed the industry demands.We are 450+ people across European offices, working in product, engineering, commercial, and the teams that keep partners connected.In 2026, Alpega was named a Challenger in the Gartner...

Symrise seeks a Digital Solutions Architect & Engineer to shape how AI, GenAI, and intelligent automation are used to solve business challenges. You will own the architecture and delivery of scalable, secure enterprise solutions that deliver measurable impact. This senior individual contributor role combines hands-on engineering with solution architecture...

King is seeking a Senior Systems Engineer (Developer Experience & Infrastructure) to elevate the platforms developers rely on daily. You’ll design, build, and support self-service tools, and automate workflows to speed up feedback loops across teams. You’ll scale our Infrastructure as Code and containerized build systems across multi-OS and cloud...

Who We Are Helsing is a defence AI company. Our mission is to protect our democracies. We aim to achieve technological leadership, so that open societies can continue to make sovereign decisions and control their ethical standards.As democracies, we believe we have a special responsibility to be thoughtful about the development and deployment of powerful...

Fichtner is seeking a Senior Engineer for Low Voltage and Auxiliary Systems in Barcelona. The role involves responsibilities for the design and compliance of offshore systems, working within a global team on international energy projects. Candidates should have at least five years of experience in energy infrastructure, ideally with offshore background, and...

Rain is looking for a Senior Software Engineer in EMEA. This remote position involves managing backend platform areas, including API integrations with 3rd-party vendors. The ideal candidate has at least 5 years of experience, is proficient in backend languages like Go and Python, and skilled in creating scalable, reliable systems. Responsibilities include...

Since 2009, Lengow has been the indispensable e-commerce platform for multi-channel expansion in the European market: marketplaces, price comparison websites, affiliate marketing, display ad retargeting, social media, etc.Our Data team Join a dynamic Tech, Data & Product team of 50 professionals with diverse expertise. You'll report to the Head of Data and...

Mission Are you ready to take part in the upcoming AI revolution of the business world? If the answer is a resounding 'yes,' we have an extraordinary opportunity for you!About Us Aily Labs is a B2B SaaS company building an AI-powered decision intelligence app for enterprises. Our mobile‑first platform combines company data with advanced machine learning,...

eDreams ODIGEO is seeking a Java Senior Software Engineer to join its Customer eXperience team in Madrid or Barcelona with a hybrid work model. You will drive technical work, provide guidance, and lead code and architecture reviews while delivering high-impact projects for a global travel platform. Ideal candidates bring deep Java expertise, cloud and DevOps...

Full Stack Engineer (Senior/Lead) ID38801 AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.Overview We are looking for...

A technology leader in measurement solutions is seeking a Senior IT Application Engineer to drive the transition to modern analytics platforms using Microsoft Fabric. The role involves transforming legacy systems, collaborating with international teams, and developing automation scripts. Candidates should have strong expertise in data engineering, excellent...

King is seeking a Senior Systems Engineer (Developer Experience & Infrastructure) in Barcelona to enhance self-service platform tools and automated workflows, accelerating developer feedback loops. You will design, build, and support IaC and containerized build systems across multi-OS and cloud environments, while mentoring teams and improving platform...

Enfint в Барселоне приглашает опытного фронтенд-инженера присоединиться к команде, занимающейся продуктом группы путешествий и мероприятий. Вы будете разрабатывать UX и формировать взаимодействие...

Kodify in Barcelona is seeking a Senior Full-Stack Developer to help evolve a platform supporting nearly 100 million unique visitors monthly. You will have full responsibility for technical design, development, and testing in a fully remote position, fostering collaboration within a globally diverse team. The role offers a top-notch tech stack, flexible...

INBRAIN is seeking two Senior Mechanical Engineers to lead the mechanical design of an implantable device (Class 3), overseeing development from concept to validation in a fast-paced MedTech startup. You will collaborate with electronics, quality, regulatory and clinical teams, deliver reliable designs per ISO13485/14971, and manage external partners....

A leading energy company in Barcelona is seeking a highly skilled SysOps Engineer to provide advanced technical support and guide the Service Desk team. The ideal candidate will have a strong educational background in IT, proven experience in SysOps, and expertise in networking and system administration. You'll work with cutting-edge technologies and...

We power people’s progress. 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 power people’s progress. At Preply, we’re...

Wolters Kluwer in Barcelona is seeking a Senior Product Software Engineer (Expert Level) to design, develop, and troubleshoot leading software solutions. You will contribute to user experience and satisfaction by delivering robust applications and performance improvements. You will lead development efforts, collaborate with cross-functional teams, and...