121,249+ Fullstack Javascript Engineer Fullstack Jobs in Spain — Top Companies Hiring June 2026

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Data Engineer Azure (Databricks Certified)

Elegir Capgemini es elegir la posibilidad de dar forma a tu carrera profesional como desees. Recibirás el apoyo y la inspiración de una comunidad colaborativa de colegas de todo el mundo y podrás reinventar lo que es posible. Únete a nuestro equipo y ayuda a las principales organizaciones del mundo a descu ...

Lead Expert Data & AI Engineer

Job Title: Lead Expert - Data & AI Engineer Location: Barcelona, Spain Join us as a Data Engineer Expert to design, maintain robust data pipelines, manage teams, and lead projects and initiatives ensuring seamless data integration and transformation. Collaborate with data modelers, scientists ...

Specialist IoT Cloud Engineer Lead

Join Us At Vodafone, we’re not just shaping the future of connectivity for our customers – we’re shaping the future for everyone who joins our team. When you work with us, you’re part of a global mission to connect people, solve complex challenges, and create a sustainable and more inclusive world. ...

AI Engineer Generative AI Manufacturing

Can you imagine helping redefine industrial process automation with Generative AI? Join our expert team to work on a manufacturing-focused platform, contributing to the development of AI-driven workflows and automation solutions. You will apply your knowledge of Generative AI, LangChain/LangGraph ...

Senior Full Stack Python Engineer

Client Overview Our client is a global UK-based financial services and investment banking organization developing an AI-powered document processing and automation platform used across multiple business units. The platform focuses on large-scale data processing, workflow automation, integration wi ...

Solutions Engineer — Presales & Technical Enablement

Factorial HR is seeking a Solutions Engineer in Barcelona to be the technical bridge for our customers. You will provide critical sales support, manage integration challenges, and enhance data analytics capabilities for clients. The ideal candidate has over 2 years of experience in a technical client-f ...

On Board Flight Performance Engineer

Airbus in Getafe is hiring an On-board Performance Applications Engineer to contribute to aircraft performance functions. You will work in a multidisciplinary environment with a team focused on safety and efficiency. The ideal candidate holds an aeronautical engineering degree, has strong English skill ...

Graduate AI software engineer (Madrid)

Overview Evernote is a note-taking and organization platform that millions of users rely on for powerful note taking, project planning, personal knowledge management, and more. Now part of Bending Spoons, it plays a key role in a portfolio of outstanding digital businesses united by a shared focus ...

Middle Data Engineer (Azure Databricks)

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the lead ...

Senior Software Engineer (Back end)

Overview At SITA we keep airports moving, airlines flying smoothly, and borders open. We provide technology and communication innovations for the global air travel industry. We work in 95% of international airports and collaborate with transportation and government clients. About The Rol ...

Application Security Engineer Cloud & Web

TheFork, a Tripadvisor company, is looking for an Application Security Engineer to join our security team in Barcelona. In this role, you will be responsible for securing application development pipelines, evaluating vulnerabilities, and ensuring the security of our web applications. You will work alon ...

Laboratory Engineer: Composite Materials & Testing

Hexcel Corporation in Parla, Spain, is seeking a Laboratory Engineer (replacement) to manage the Phys-chem and mechanical lab and ensure certification targets are met. Responsibilities include maintaining lab software, supporting customer testing inquiries, and training lab staff. The ideal candidate w ...

Infrastructure & Endpoint Protection Security Engineer

Location: Barcelona, Spain Internal job title: Associate Director DDIT ISC End Points, Servers, Data Protection This role is based in Barcelona. Novartis is unable to offer relocation support for this role; please only apply if this location is accessible for you. The S ...

Senior Security for AI Engineer

Would you like to be part of a team of over 19,000 cybersecurity specialists worldwide? Accenture has an opportunity for you to join our Cybersecurity team. At Accenture, we help organizations build, deploy and scale secure, trustworthy and compliant AI systems. We are looking for a Security for AI ...

Senior AI Engineer for Finance

At Lighthouse, we’re on a mission to disrupt commercial strategy for the hospitality industry. Our innovative commercial platform takes the complexity out of data, empowering businesses with actionable insights, advanced pricing tools, and cutting‑edge business intelligence to unlock their full revenue pot ...

IoT Cloud Platform Lead Engineer

Vodafone is hiring for a Cloud Engineering position in Madrid, focusing on enabling the IoT Global Connectivity platform. The successful candidate will enhance infrastructure, contribute to cloud adoption, and support a Data-Driven IoT services at global scale. Applicants should have strong experience ...

Software Engineer Intern Product Owner

Overview The position is a Software Product Owner / Requirement Engineer Intern in the Instrumentation Development chapter located in Sant Cugat, Barcelona. The role focuses on defining product requirements before any coding takes place, acting as a bridge between high‑level business needs and tec ...

Site Reliability Engineer (SRE) – Automation

About the Role At Lognext we have been accompanying companies and teams for more than 18 years to identify and implement the technology necessary to move forward, making their challenges and objectives our own and getting closer to their reality. Being a NEXTER means that your career and talent b ...

Senior Product Development AI Engineer

We’re looking for a Senior Product Development AI Engineer to join our Cortellis Drug Discovery Intelligence (CDDI) team in Barcelona, where you’ll work on high-impact backend services enhanced with AI capabilities that power global pharmaceutical intelligence. In this role, you’ll take strong ownership of ...

Software Requirements and Test Engineer

An opportunity for a SW Requirements and Test Engineer has arisen within Airbus Defence and Space, Getafe (Madrid). Our world is changing, and so are we. From our commitment to zero‑carbon flight (#ZEROe) to cleaning up space, sustainability is at the heart of our purpose. So what's your next change? < ...

Global Quality & Process Improvement Engineer

Rheinmetall Expal Munitions in Madrid is seeking an Engineer to ensure high product quality through continuous improvement methodologies. Responsibilities include managing quality projects and conducting non-quality cost management. The ideal candidate should have an Engineering Degree, at least 2 year ...

Application & Product Security Engineer (Remote)

Itransition Group is seeking an Application Security / Product Security Engineer to enhance security across software development processes. This position involves working with various security tools and managing vulnerabilities. The ideal candidate will have 2-5 years in Application Security, DevSecOps ...

Staff Software Engineer, Flights Platform

TravelPerk invites innovative Software Engineers to join their team in Barcelona. As part of the Flights team, you will take ownership of the technical vision, work across multiple squads, and contribute to the development of reliable customer-facing products. Expect to utilize your skills in tackling ...

Senior Orchestration & Automation Engineer (Hybrid)

Process Analytics Factory - PAFnow by Celonis in Madrid is seeking a Full Stack Software Engineer to design, build, and maintain high-quality scalable software solutions. You will collaborate with cross-functional teams to translate business requirements into technical solutions, ensuring exceptional user exp ...

Aerospace L1 Communications Systems Engineer

Ultimate.ai is seeking a Communications & Connectivity System Engineer to join Airbus Defence and Space in Getafe. The role involves coordinating Comms System Engineering activities, contributing to system design and technical reviews. Candidates should possess a degree in Engineering, relevant experience in Com ...

Security Engineer: Threat Defense & Automation

Bending Spoons seeks a skilled individual focused on security to identify vulnerabilities, conduct assessments, and strengthen data integrity. This role promotes collaboration within innovative teams committed to excellence and integrity. Candidates will enjoy competitive pay, substantial growth opport ...

Senior Project Engineer BESS (Spain)

Responsibilities Lead engineer responsible to technically manage delivery of the BESS projects Ensure all deliverables meet contractual ER and country-specific local compliance design impacts are addressed by engineering Oversee system design drawings (electrical, mechan ...

Design Engineer Isolator & Cleanroom Systems

SYNTEGON in Terrassa, Spain, is seeking a motivated and technically driven Design Engineer to support the execution of customer-specific projects. In this role, you will work with cross-functional teams to deliver high-quality engineering solutions tailored to customer needs. The ideal candidate holds ...

Senior Full Stack & AI Engineer

SGS is the world’s leading Testing, Inspection and Certification company. We operate a network of over 2,500 laboratories and business facilities across 115 countries , supported by a team of over 100,000 dedicated professionals . With more than 145 years of service excellence , we com ...

Application Security Engineer Cloud & Web

TheFork, based in Cataluña, is looking for an Application Security Engineer to join their security team. You will evaluate the security posture of TheFork’s applications and systems, ensuring their protection against vulnerabilities. The ideal candidate will have over 3 years of security testing experi ...

Senior Security Engineer (all genders)

Meet Urban Sports Club We are among the leading platforms for sports and wellness in Europe, dedicated to inspiring people to live active, healthy lives. With just one membership we offer access to thousands of fitness and wellness experiences across the continent. But what truly sets us ap ...

Security Engineer (Sec DevOps) SDS

Security Engineer (Sec DevOps) - SDSCountry: Spain**IT STARTS HERE**Santander is evolving from **a global, high-impact brand** into a **technology-driven organization**, and our people are at the heart of this journey. **Together**, we are driving a **customer-centric transformation** that values bold **thinking ...

Python Software Engineer (Industrial Automation)

En agap2 , consultora tecnológica especializada en IT e ingeniería, seguimos creciendo y buscamos un/a Senior Python Software Engineer para incorporarse a un entorno industrial innovador, participando en el desarrollo de herramientas software orientadas a la automatización de tests de val ...

Global RFx & Proposal Strategy Engineer

Boomi is seeking a seasoned professional in Barcelona to lead global RFx response efforts. This hybrid role requires a blend of technical expertise and program management, collaborating with various teams to ensure timely and accurate submissions. The ideal candidate has extensive presales experience a ...

AI Engineer Generative AI Manufacturing

Overview Can you imagine helping redefine industrial process automation with Generative AI? Join our expert team to work on a manufacturing-focused platform, contributing to the development of AI-driven workflows and automation solutions. You will apply your knowledge of Generative AI, Lang ...

Security Engineer (SecDevOps) Hybrid/Remote

Banco Santander SA is looking for a Security Engineer (Sec DevOps) to join their team in Santander, Spain. You will support the Privileged Access Management function, enhancing solutions and managing customer requests, while collaborating with vendors on integration plans. The ideal candidate has over ...

Workday Integration & Automation Sr. Engineer

Celonis is the global leader in Process Intelligence and the pioneer of Process Mining technology. As one of the world’s fastest‑growing enterprise SaaS companies, we are changemakers pushing the boundaries of what’s possible. We invest heavily in advanced AI capabilities—specifically our Process Intellige ...

Systems Engineer — Applications & Project Integration

Rolls-Royce is looking for an experienced engineer in Madrid to join their team in Systems Design Integration. The role requires deep expertise in mechanical design and problem resolution, ideally with a bachelor's or master's in engineering. The successful candidate will manage product changes, design ...

Senior QA Engineer / QA Lead

We are looking for a hands‑on QA Lead to own quality assurance across Idoven’s Health SaaS platform. This is a deeply technical role — you will be the person who builds the QA framework, drives automated testing strategy, and personally implements the testing infrastructure that keeps our AI‑powered cardio ...

AI Engineer API & Integrations Team

We’re Looking For Treat AI as central to our craft. Obsessed with building and shipping fast. Care about real impact, not hierarchy or titles. Introduction As a Product AI Engineer at Factorial, you will help define and build the next generation of our ...

Mission&Ops Mission Analysis Engineer

At Orbital Paradigm, we design, develop, manufacture, and operate reusable orbital logistics systems. Our spacecraft perform multiple orbital mission profiles and return safely to Earth through hypersonic atmospheric reentry and landing with pinpoint accuracy for rapid refurbishment and reuse. Role ...

Specialist IoT Cloud Engineer Lead

Join UsAt Vodafone, we’re not just shaping the future of connectivity for our customers – we’re shaping the future for everyone who joins our team. When you work with us, you’re part of a global mission to connect people, solve complex challenges, and create a sustainable and more inclusive world. If you want to ...

AI Enablement Engineer (Mobile Apps)

Take your career to the next level with Amaris Consulting as an AI Enablement Engineer – Mobile Applications . Become part of an international team, thrive in a global group with €800M turnover and 1,000+ clients worldwide, and an agile environment by planning the kickoff and follow up on projects. ...

Senior Static Stress Engineer Aerospace

Founded in 1962, SOGECLAIR is a group of engineering companies specializing in high technologies. With an international presence, SOGECLAIR has extended its influence beyond national borders, reinforcing its ability to innovate and collaborate with partners worldwide. SOGECLAIR DIGITAL ENGINEERING c ...

Fatigue & Damage Tolerance Analysis Engineer

Job Description: Tasks As a Fatigue & Damage Tolerance Analysis Engineer, you will develop the following challenging tasks and activities: Analyze and validate metallic, composite & hybrid structures for Fatigue and Damage Tolerance (F&DT), using Airbus Defence & Spa ...

MAP Structures & Cargo Stress Engineer

Job Description The job holder will be part of MAP Structure & Cargo – TADAX1, within the Stress team. MAP Structure & Cargo is a multidisciplinary, cross‑functional and international team of highly skilled and motivated engineers involved in the complete aircraft. Its mission is ...

Senior Software Development Engineer (Discovery)

Requirements Experience as a mentor, tech lead or leading an engineering team Experience leading the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems Experience in professional, non-internship software developmen ...

Product Introduction Reliability Growth Engineer

At Alstom, we understand transport networks and what moves people. From high-speed trains, metros, monorails, and trams, to turnkey systems, services, infrastructure, signalling and digital mobility, we offer our diverse customers the broadest portfolio in the industry. Every day, 80,000 colleagues lead th ...

Senior ML Engineer (LLMs, AWS)

Join us at Provectus to be a part of a team that is dedicated to building cutting‑edge technology solutions that have a positive impact on society. Our company specializes in AI and ML technologies, cloud services, and data engineering, and we take pride in our ability to innovate and push the boun ...

Systems Spacecraft Lead Engineer Kestrel

Role Description Orbital Paradigm is looking for a Spacecraft Lead Engineer to lead the development of Kestrel, the company’s primary spacecraft programme, and drive the spacecraft engineering function across the company. Kestrel is a space return capsule capable of transporting up ...

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    Fullstack Javascript Engineer Fullstack Jobs in Spain Job Search Guide, Trends and Insights