Backend Software Engineer responsible for building innovative AI tools at Goodweek. Collaborating with teams to shape core frameworks and drive performance.
Responsibilities
Shape our core AI framework and backend, taking full ownership of backend features
Build scalable, secure and high-performance systems integrating with AI
Collaborate closely with product, data and engineering teams
Build robust backend services for AI systems (RAG, model orchestration, vector databases)
Design scalable APIs integrating LLMs and AI workflows
Ensure security, observability, and performance across our infrastructure
Automate deployment pipelines, monitoring, and testing
Participate in architecture and tech stack decisions
Document and share technical knowledge
Drive continuous improvement of our AI platform with innovative solutions
Requirements
Technical background
5+ years of experience with Node.js + TypeScript stack (NestJS/React)
Hands-on experience (or strong familiarity) with AI/ML integration (LLMs, RAG, or similar)
Solid understanding of backend architecture, scalability, and security best practices
Experience with databases, authentication, and cloud platforms
Familiar with CI/CD, Git workflows, and agile methodologies
Bonus: familiarity with other backend programming languages (go, python, ...)
Benefits
Fully covered health insurance (100%)
Meal vouchers and transportation cost reimbursement (50%)
Flexible working hours
Hybrid remote work
Daily use of English through close collaboration with teams in the US and Spain
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