Back-end Developer – AI-powered HR Tech Location: Remote (preferably Italy) Start: ASAP Level: Mid Type: Collaboration P.IVA (€2,500 / month) Possibility of employment & stock options The Project We are Mastro HR, a startup in HR-Tech founded by two repeat founders with a clear vision: to free recruiters from busywork to make the selection process intelligent, fast, and objective through AI We already have clients, revenue, market validation, and a working MVP. Now, we want to scale, optimize the code, integrate new features, and build a solid foundation for go-to-market. What We Are Building An AI Hiring Platform that automates: Analysis of the company context Creation of job descriptions Candidate sourcing and screening Automated testing and scoring Final validation with human experts Who We Are Looking For We seek a sharp, autonomous, and fast learner who can build, test, and improve. Someone eager to make an impact in a real startup environment. Minimum Technical Skills Required Node.js Python PostgreSQL Scalable database design RESTful APIs Kubernetes Basic experience with: Supabase OpenAI Lovable Additional Skills (Nice to Have) Experience in early-stage startups Decision-making attitude and not just execution Interest in generative AI models and intelligent automation What We Offer A clear vision and a functional MVP €2,500/month in P.IVA, with potential for employment and stock options A concrete, fast-moving, impact-oriented team An international project with active clients How the Process Works Introductory call: 30 minutes to understand mindset and expectations Technical task: to see your coding and reasoning in action Test drive: a light collaboration to see if we work well together Go: if all goes well, we start Contact Write to us at: Know someone who might love us? Forward this message. We are ready to build. We are looking for someone serious about making an impact. J-18808-Ljbffr