Senior Frontend Engineer (React) - Join Our Dynamic Team

About ExoticcaExoticca is an innovative online travel agency that is transforming the way people envision, create, and purchase unforgettable long-distance journeys. Our core mission revolves around the principle of 'creating life milestones.' We are dedicated to offering exceptional value trips, uncovering unique destinations, and curating extraordinary travel experiences, all while showing unwavering care for our customers and the environment.As a rapidly growing, professional, and multicultural team, we are eager to welcome new partners who share our vision in building the most progressive travel company of our generation.Your RoleWe invite you to become a proactive Senior Frontend Engineer who is passionate about crafting high-quality, maintainable code. You will leverage modern tools, including AI, to enhance productivity and efficiency. Your contributions will help us deliver superior frontend experiences, marrying robust engineering principles with a results-driven approach.Key Responsibilities:Develop and deliver high-quality frontend code that is clear, maintainable, and ready for production, guiding features from concept to deployment.Utilize AI-driven tools judiciously for tasks such as prototyping, refactoring, testing, and documentation to accelerate delivery without sacrificing code integrity.Engage in Growth experiments and iterations, facilitating rapid feedback cycles, A/B testing, and continuous enhancement.Collaborate closely with Backend, Product, and Design teams to ensure seamless interfaces, excellent user experiences, and collective accountability for results.Maintain a healthy codebase by refining existing components, addressing technical debt, and elevating quality standards where necessary.Mentor team members through code reviews and knowledge sharing, leading by example and fostering improvement in their skills.

Join Our Team at QuadriviaQuadrivia is a pioneering health technology company that has developed Qu, an innovative AI assistant tailored specifically for clinicians. In response to the critical shortage of healthcare professionals, Qu offers immediate, personalized, and dependable support for clinical tasks across the healthcare continuum. Our solution is designed for healthcare providers, payers, and pharmaceutical companies, allowing for easy customization and seamless integration into existing workflows, ensuring precise assistance throughout the care spectrum.Your RoleAs a Senior Frontend Engineer, you will be responsible for crafting secure and intuitive interfaces for clinicians, B2B customers, and patients that interact with our agent-based clinical AI system. Your primary focus will be to deliver a flawless end-to-end web experience that meets the highest standards of quality.Key ResponsibilitiesDevelop high-quality frontend applications using React and Typescript.Implement secure data flows in compliance with regulatory standards.Create real-time interfaces for chat, voice, clinical workflows, and operational tools.Collaborate closely with design, clinical teams, QA engineers, and backend engineers.Ensure accessibility, clarity, and safety in all UI components.Maintain stringent performance, latency, and reliability standards.Deliver pixel-perfect, test-driven components using robust CI/testing practices.Required ExperienceOver 10 years of frontend development experience with React and Typescript.Proven track record in building real-time interactive interfaces (chat, voice, agent UI).Strong skills in frontend architecture and performance optimization.Experience in regulated or high-risk domains, preferably healthcare.Deep understanding of API integration, state management, and WebSockets.Strong knowledge of OAuth2.Proficiency in WebRTC technologies.Exceptional communication skills—clear, structured, and concise, preferably following the STAR/SAR method.Experience in healthcare or related fields.Preferred QualificationsFamiliarity with design systems tailored for regulated environments.Experience in event-driven applications.

⭐ About UsLodgify is a dynamic and rapidly growing scale-up at the forefront of the vacation rental industry. With $30M in funding, our innovative platform empowers property owners and managers globally to effectively manage and expand their businesses through advanced technology solutions.Based in the vibrant city of Barcelona, our diverse team of over 380 professionals hailing from more than 60 nationalities is dedicated to revolutionizing the future of short-term rentals.⭐ Role OverviewWe are excited to invite a Senior Frontend Engineer to join our thriving multicultural startup. In this role, you will enhance and maintain our existing frontend application built with React. You will engage in more than mere coding; you will collaborate closely with teams to create a product that our users truly cherish. You will take full ownership of your projects, from the initial brainstorming sessions through to deployment and beyond. We seek an innovative thinker who is eager to interact with customers, analyze usage data, and prioritize solutions to key challenges.

blp-digital seeks a Senior Frontend Engineer to join its onsite team in Barcelona. This position centers on building user interfaces that improve how people interact with web applications. Collaboration is key: expect to work closely with both designers and backend developers to deliver features that support a strong user experience. Responsibilities Develop and maintain web applications using modern JavaScript frameworks Partner with design and backend teams to create intuitive and effective interfaces Influence the architecture and design of frontend solutions Support the quality and reliability of the codebase Work location This role is based onsite in Barcelona, Spain.

About UsAt Perk, previously known as TravelPerk, we have developed an innovative platform that revolutionizes travel and expense management. Our mission is to eliminate the tedious manual tasks that hinder productivity, providing automated solutions for everything from travel bookings to expense reports and invoice processing. We aim to combat the inefficiencies that cost employees an average of 7 hours of lost productivity every week, representing a staggering $1.7 trillion challenge.Trusted by over 10,000 companies globally, including names like Wise, On Running, Breitling, and Fabletics, we strive to empower businesses to focus on impactful work. Since our inception in 2015, Perk has expanded rapidly, employing over 1,800 individuals across 12 international offices, with headquarters in London and Boston.Our company culture is driven by core values such as ownership, delivering a 7-star experience, and teamwork. We emphasize curiosity, purpose, and mindset—recognizing that these attributes unlock potential beyond mere knowledge. Our diverse talent team comprises leading professionals from the travel and SaaS sectors, representing more than 70 countries. If you're passionate about making a significant impact and transforming how millions experience work, we would love for you to join us.To learn more about us, visit www.perk.com.We seek intelligent individuals who can leverage the best tools and processes to excel in their roles. Join our enthusiastic team and play a crucial role in shaping the visual identity of our platform, website, and internal tools. As a key member of our engineering team, you will not only deliver high-quality product features and advanced internal tools but also lead the ongoing improvement and evolution of our frontend architecture.

Join TransPerfect, an innovative company with a dynamic start-up culture, as we seek talented and entrepreneurial individuals to enhance our team. We are looking for a Frontend Engineer to drive the quality, development, and execution of our software products. If you're eager to make a significant impact in a growing organization, we would love to hear from you!About TransPerfect – TechOps:The TechOps team at TransPerfect has been integral to our success for over a decade, providing technology and services that simplify processes for our clients and colleagues alike. From improving workflows to developing scalable client interfaces, we empower users to navigate complex ecosystems effortlessly.

Role Overview haufegroup is hiring a Senior Software Engineer with strong Java experience for its Barcelona office. This role focuses on building and maintaining high-performance software that supports client requirements and drives product improvement. What You Will Do Design, develop, and maintain Java-based software solutions Work closely with cross-functional teams to enhance existing products Contribute to technical decisions and ongoing improvements Location This position is based in Barcelona.

About AbacumAbacum stands at the forefront of Business Planning solutions tailored for finance teams. Our innovative platform automates reporting, enhances collaboration, and streamlines planning and forecasting, empowering finance teams to transition from mere number crunching to making strategic decisions.Founded in 2020 by visionary former CFOs, we have rapidly expanded to a global workforce of 100+ talented individuals representing 30+ nationalities. With our headquarters in New York and additional offices in London and Barcelona, we are proud to serve esteemed clients such as Dish Networks, Strava, BetterUp, Kajabi, JG Wentworth, Abridge, Cortex, among many others.Having successfully raised over $100 million, we recently concluded our $60M Series B funding round in June 2025, led by Scale Venture Partners with strong backing from Cathay Innovation, Y Combinator, Atomico, Creandum, and angel investors from Adyen, Zapier, and Twitch.Our ambitious mission is to redefine Business Planning—join Abacum and be part of this groundbreaking journey!We are looking for...An enthusiastic Senior Frontend Engineer who thrives on solving intricate, market-defining challenges—such as developing a real-time, multidimensional calculations engine!This is a rare opportunity to engage in an agile coding environment, directly influence our product, and shape our engineering culture and technical design.If you are someone who takes pride in ownership of your work, learns swiftly, and is eager to contribute to something extraordinary, we invite you to apply!

Join TransPerfect, a dynamic company with a vibrant start-up culture, as a Junior Frontend Engineer. We are looking for innovative and entrepreneurial individuals to enhance our global team. In this role, you will be instrumental in ensuring the quality, development, and execution of our software products. If you are eager to make an immediate impact in a growing organization, we invite you to apply!About TransPerfect – TechOps:The TechOps team at TransPerfect has played a crucial role in our success over the past decade, providing technology and services that significantly improve the workflow for both clients and colleagues. From enhancing core services of our GlobalLink platform to designing scalable client interfaces that simplify complex processes for users, we are dedicated to innovation and excellence.

airapps is hiring a React Engineer in Barcelona. This position centers on building user-friendly applications using React.js. The team values creativity and works closely together to deliver solutions. Role overview This role focuses on developing applications with React.js. Collaboration and sharing ideas with teammates are part of the daily workflow. What you will do Build and maintain applications using React.js Work with a team that encourages creative input Contribute to a collaborative and supportive environment Requirements Experience with React.js Ability to create user-friendly interfaces Interest in working with a collaborative team

About UsAt Perk, we are revolutionizing travel and spend management through our intelligent platform designed to eliminate tedious manual tasks. Our innovative tools automate everything from travel bookings to expense management, enabling employees to focus on what truly matters. With a mission to boost productivity and foster innovation, we aim to tackle the $1.7 trillion problem of lost productivity, which costs employees an average of 7 hours of productivity each week.Founded in 2015, Perk has rapidly grown to over 1,800 employees across 12 offices worldwide, with our headquarters situated in London and Boston. Our commitment to innovation, simplicity, and control shapes how businesses operate and improves employee satisfaction.We uphold values like ownership, delivering a stellar 7-star experience, and teamwork. At Perk, we believe in the power of curiosity, purpose, and mindset in unlocking your full potential. Our diverse talent team comprises experts from the travel and SaaS industries across 70+ countries. If you are passionate about making a significant impact and transforming the work experience for millions, we invite you to join our team.To learn more about us, visit www.perk.com.In the Platform function at Perk, we establish the foundational infrastructure that supports our entire organization. We manage shared infrastructure, core services, and developer tools that empower product teams to innovate swiftly while ensuring stability. Our contributions may be behind the scenes, but their effects are felt throughout the company in terms of reliability, scalability, security, and developer experience.

Are you a skilled Senior QA Automation Engineer looking to make a significant impact in a fast-paced and innovative environment? At Shiji Group, we are dedicated to enhancing the hospitality and retail industries with cutting-edge technology. Join us in Barcelona to lead the charge in ensuring the highest quality of our software solutions!

Senior Staff React Engineer with TypeScript and AI ExpertiseAbout Us:Wizeline is a leading global technology solutions provider, specializing in AI-driven digital products and platforms. We collaborate with our clients to harness the power of data and artificial intelligence, streamlining market entry and catalyzing transformative business outcomes. As a vibrant community of innovators, we prioritize growth, collaboration, and meaningful impact.With the right talent and innovative ideas, we believe there are no limits to what we can accomplish.Are You the Right Fit?If this opportunity excites you, let's determine if you're the right candidate for this position: Key ResponsibilitiesGuide the architecture, design, and development of scalable, high-performance web applications using React and TypeScript.Formulate and implement the front-end technical strategy, ensuring it meets scalability, performance, and alignment with product and AI objectives.Engage closely with AI engineers, data scientists, designers, and product managers to craft intelligent, data-centric user experiences.Incorporate AI-powered components (e.g., chatbots, assistants, content generators, predictive UI) into contemporary web applications.Mentor fellow engineers, fostering excellence in coding practices, architectural decisions, and technical problem-solving.Establish and uphold standards for code quality, accessibility, performance optimization, and testing.Collaborate with backend and DevOps teams to enhance CI/CD pipelines and deployment processes.Continuously seek opportunities to integrate AI and automation to improve development workflows and user experiences. Essential Qualifications8+ years of professional software development experience, including at least 5+ years focused on React and TypeScript.Demonstrated experience in architecting and scaling enterprise-grade front-end applications.Knowledge of integrating AI technologies into web applications.

dlocal seeks a Frontend Architect in Barcelona to define the technical direction of web applications. This position plays a central role in shaping how users interact with dlocal’s products and sets the foundation for frontend projects across the company. Role overview The Frontend Architect leads the design and development of scalable, high-performance frontend solutions. Hands-on involvement is expected, with a focus on improving user experience and driving product engagement. The role also involves setting architectural standards and ensuring consistency across frontend codebases. What you will do Lead the creation of scalable and high-performance frontend solutions Work closely with cross-functional teams to deliver applications that align with client needs Define and uphold architectural standards for frontend code Mentor engineers on best practices and modern web technologies Oversee project delivery to maintain quality and consistency Requirements Significant experience with modern frontend frameworks and tools Strong track record in building scalable, maintainable web applications Proven ability to set architectural direction and influence technical decisions Comfortable collaborating with product, design, and engineering teams This is a key role supporting dlocal’s growth and commitment to product quality in Barcelona.

haufegroup seeks a Senior Back-End Software Engineer with advanced Java expertise to join the Barcelona team. The role centers on building scalable systems that power digital transformation projects for clients. Role overview Design and develop reliable, scalable back-end solutions using Java Collaborate with colleagues from various disciplines to deliver quality products Mentor junior developers and support their technical growth Requirements Extensive experience building back-end systems with Java Ability to work well in cross-functional, collaborative teams Interest in mentoring and sharing knowledge Located in or open to relocating to Barcelona Location This position is based in Barcelona.

At Datavant, we are revolutionizing healthcare through data collaboration. Our mission is to ensure that health data is secure, accessible, and actionable, enabling organizations—from healthcare providers to researchers—to improve patient outcomes. Join our innovative team and contribute to groundbreaking solutions that power the AI revolution in healthcare.Your Opportunity: Be Part of Our Life Sciences Tech Hub in BarcelonaAs we expand our global presence, we're establishing a Life Sciences Tech Hub in Barcelona and are in search of skilled full stack engineers who are passionate about creating impactful healthcare technology. Your role will involve designing and implementing systems that ensure secure, privacy-compliant access to high-quality healthcare data for pharmaceutical companies, biotech innovators, and research institutions worldwide. Your contributions will accelerate clinical trials and improve patient care by making critical data interoperable and trustworthy.At Datavant, you'll have the chance to apply your technical skills and problem-solving expertise in a supportive environment dedicated to our mission: empowering every healthcare decision with the right data, at the right time, in the right format. We seek innovators, dreamers, and doers who are ready to make a difference.Why Join Our Tech Team?Collaborate with engineering leaders on strategies and technology vision.Mentor colleagues through code reviews and software design.Work with a diverse technical stack, including cloud and on-premise solutions, big-data analytics, and complex algorithms.

Join the cutting-edge AI Special Forces team at Darwin AI! We are seeking a driven and enthusiastic AI Engineer who is passionate about leveraging technology to provide exceptional support to our clients. This role is ideal for individuals who thrive on solving complex problems and have a keen interest in the intricacies of technology and artificial intelligence.As an AI Engineer, you will be at the forefront of client interactions, serving as the primary resource for resolving challenges related to AI agents and their integration with external systems. Your responsibilities will involve direct communication with clients to address inquiries, troubleshoot issues, and collaborate with internal teams including Customer Success, Onboarding, Product, and Engineering to ensure timely and comprehensive resolutions. Your contributions are vital in fostering strong client relationships and enhancing the overall Darwin AI experience.Key Responsibilities:Promptly respond to customer inquiries through WhatsApp, email, and Slack, ensuring high levels of satisfaction.Diagnose and resolve technical issues, particularly those involving AI behavior, configurations, and API integrations.Monitor alerts from internal tools and customer feedback on the Darwin platform to take necessary actions.Collaborate closely with Product and Engineering teams, escalating complex challenges and contributing to product enhancements.Maintain detailed documentation of support activities to ensure accurate tracking of issues and solutions.Identify recurring problems and assist in developing internal documentation and FAQs.Work alongside Customer Success and Onboarding teams to ensure a seamless client journey.Review AI conversations to uncover bugs or areas for improvement.Ensure all critical feedback and issues are addressed within the specified SLA.

We are seeking a skilled and innovative Dynamics 365 CRM Architect to join our dynamic team in Barcelona. The ideal candidate will possess a deep understanding of Microsoft Dynamics 365 solutions, with a proven track record in architecting and implementing CRM solutions that drive business value. You will collaborate closely with clients to analyze their requirements, design tailored solutions, and ensure successful deployments.

Are you a passionate sales professional fluent in French? Join SiteMinder, a leading provider of online booking and distribution solutions for the hospitality industry, as a Sales Executive. In this role, you will drive our growth by connecting with potential clients and showcasing how our innovative solutions can enhance their business.As part of our vibrant team in Barcelona, you will have the opportunity to work in a fast-paced environment where your contributions directly impact our success. If you are motivated, results-oriented, and eager to make a difference, we want to hear from you!

courir is looking for a Cashier (M/F) to join the team in Barcelona. This role centers on delivering excellent customer service and ensuring smooth, accurate transactions at the register. Main responsibilities Welcome each customer and offer attentive, friendly service throughout their visit Handle sales transactions efficiently and with precision Support a positive store atmosphere so customers leave satisfied Location This position is based in Barcelona.