Full-Stack Developer

Position : Full-Stack Developer (Backend-Leaning)
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Type of work : Hybrid (Barcelona)
Work from office requirements :3 days per week in the office, 2 days from home
Type of contract : Contractor Agreement
Contract location : Barcelona, Spain
Type of company : Fast-growing US-based B2B SaaS startup
Years of experience required : 5+ years
Must-have skills : Strong experience with TypeScript/Node.Js, React, AWS serverless architecture, PostgreSQL, CI/CD, API integrations, and backend system design
Industry : SaaS
Relocation support : No relocation support available
Bonuses, perks, benefits : Competitive compensation, modern AI-first engineering environment, high ownership role, early-stage startup exposure, strong growth potential within a scaling international team
Reasons why it is a great place to work : Early hire in a new Barcelona hub, high ownership over architecture and product decisions, direct impact on core business growth, exposure to AI in production, and a modern cloud-native tech stack
Work permit requirements : Only candidates with a valid work permit for Spain will be considered
About the role
This is a backend-leaning full-stack engineering role within a fast-scaling AI SaaS startup. You will take ownership of backend architecture, cloud infrastructure, and integrations while also contributing to frontend development and AI-driven features.
What will you do
Build and maintain scalable backend systems and cloud-based services
Develop and integrate APIs with external platforms and tools
Contribute to frontend features using React when needed
Support the development of AI-driven features and automation workflows
Work closely with engineering and product teams to deliver and improve core functionality
Ideally you bring
Strong experience (5+ years) in full-stack or backend-heavy roles
Strong skills in TypeScript / Node.Js and React
Solid experience with AWS
Experience building APIs and integrations
Familiarity with CI/CD workflows
Compensation & Benefits
Competitive compensation package, high-ownership engineering role, exposure to cutting-edge AI systems, modern cloud-native architecture, and strong growth opportunities within a fast-scaling international startup environment.
We are an equal opportunity employer dedicated to cultivating a diverse and inclusive work environment. xhfqzwm We invite and encourage applications from individuals of all backgrounds, irrespective of race, gender, gender identity, religion, marital status, sexual orientation, health conditions, age, or any other personal characteristics.
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