ppOne of the companies we work with at Joppy, which specialises in developing cloud-based software solutions using bArtificial Intelligence (AI) /b and bthe Internet of Things (IoT) /b, whose main focus is on helping businesses manage bsustainability and regulatory compliance /b and boperational efficiency /b, is looking for FULL STACK DEVELOPERS to join the team. /p pbWorking arrangements: /b HYBRID in Madrid (3 days a week in the office). /p pAs a Senior Full-Stack Developer, you’ll play a key role in shaping the future of Business Partner Transparency (BPT) within our company HUB. We provide Supplier intelligence that goes beyond helping businesses ensure compliance with ESG regulations. We enable companies to unify transparency, compliance, and efficiency across their value chain. /p pOur HUB is a modern, enterprise-grade development platform that enables businesses to build powerful applications without worrying about infrastructure, scaling, or failover. You’ll help develop and refine this cutting-edge, serverless ecosystem while delivering meaningful solutions for international clients. /p h3Your Responsibilities /h3 ul liDesign, build, and optimize full-stack features using modern back-end technologies, ensuring scalability and maintainability. You'll use Node.JS and TypeScript on the backend, and React.JS on the frontend. /li liDevelop and enhance innovative software solutions that automate complex compliance workflows for businesses of all sizes. /li liCollaborate closely with product managers, designers, and engineers in small, agile squads (4-6 people) to define, refine, and implement features. /li liEnsure high-quality, secure, and efficient code through rigorous reviews, automated testing,



and continuous integration/deployment (CI/CD) practices. /li liOwn the architecture and design of Typescript based solutions, optimizing for performance, reliability, and user experience. /li liContribute to technical strategy and decision-making, identifying opportunities for innovation and process improvements. /li liMentor and support junior developers, fostering a culture of learning and technical excellence within the team. /li /ul h3Your Experience /h3 ul liStrong experience (ideally 4+ years) in full-stack development, using Node.JS / TypeScript and React.JS. /li liExperience in startups, SAAS or product companies. (MANDATORY) /li liHands‑on experience leveraging AI‑guided development practices and collaborating within agentic, AI‑driven engineering environments. /li liExpertise in web services development and integration (REST etc). /li liFamiliarity with Git for version control and collaboration. /li liStrong product mindset – you think beyond code, considering user experience, business impact, and scalability. /li liAgile experience – comfortable working in sprints, participating in stand‑ups, and iterating quickly. /li liExcellent communication skills (C1 or equivalent) in English. German and/or Spanish skills are a plus, (but not necessary). /li liA purpose-driven mission tackling complex sustainability challenges while working alongside general industry pioneers at a fast-growing unicorn company. /li liRoom for creativity through collaborative teamwork and an open communication culture. /li liFlexibility and team bonding with our hybrid work options. /li liSustainable mobility options, promoting eco-friendly commuting solutions. /li liFun team events and outings with our global teams. /li /ul /p #J-18808-Ljbffr

📌 Full Stack Developer (ReactJs / NodeJS / Typescript) | €85K - €105K (Madrid)
🏢 Joppy
📍 Madrid