? Barcelona | Hybrid (3 days onsite / 2 remote) Are you a Senior Full Stack Developer with strong frontend expertise, solid backend skills and hands-on experience with AWS? We're looking for an experienced Senior Software Engineer to join an exciting technology project, working on scalable, high-performance digital solutions in an international environment.
• Your responsibilitiesDevelop and maintain modern web applications using React, Next.js and TypeScript.
• Design and implement backend services using Node.js / TypeScript or Java / Spring.
• Work with AWS cloud infrastructure in production environments, including containerized or serverless architectures.
• Contribute to system architecture, technical decisions and software design.
• Ensure high standards of code quality, performance, scalability and security.
• Collaborate with cross-functional engineering teams to deliver reliable solutions.
• What we're looking for7+ years of professional software development experience (internships excluded).
• Strong senior-level expertise in React, Next.js and TypeScript.
• Solid backend development experience with Node.js / TypeScript or Java / Spring.




• Proven hands-on experience with AWS in production, using containers or serverless technologies.
• Strong understanding of software architecture, system design and engineering best practices.
• Professional working proficiency in English.
• Availability to work in a hybrid model in Barcelona.
• Nice to haveExperience with Terraform and Infrastructure as Code.
• Previous experience in e-commerce or transactional platforms.
• Experience building scalable cloud-native applications.
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What we offer
50,000€ – 60,000€ gross/year, depending on experience and technical fit.
• Hybrid working model: 3 days onsite in Barcelona and 2 days remote.
• Full-time position.
• Technically challenging projects using modern technologies.
• A collaborative environment where engineering quality and technical expertise matter. If you're passionate about software engineering, enjoy solving complex technical challenges and want to work on impactful projects, we'd love to hear from you. Apply now and take the next step in your career

📌 Senior Software Engineer (Barcelona)
🏢 Infinitum Digital
📍 Barcelona