KONCRETE

2 Jobs

17 Employees

About the Company

Koncrete révolutionne l’Achat et la Gestion des Matériaux et Déblais de construction. Grâce à notre plateforme, les professionnels du BTP créent leur devis en quelques clics, identifient la meilleure offre au meilleur prix et se font livrer en 24/48h. Notre application offre également un accès direct à un compte PRO chez nos 2500+ fournisseurs référencés dans toute la France, leur permettant de gérer facilement leurs factures, bons de livraison et encours. En somme, Koncrete apporte transparence, rapidité et simplicité sur le 2ème marché en volume vendu après l’eau. Pour les fournisseurs et transporteurs, Koncrete propose une plateforme parfaitement intégrée aux processus en place, devenant ainsi un puissant apporteur d'affaires. Enfin, nous sommes déterminés à réduire l'impact écologique du secteur en mettant en avant les producteurs locaux pour réduire les distances parcourues, en optimisant la logistique pour minimiser les trajets à vide et en encourageant l'utilisation de matériaux recyclés dès que possible. Ensemble, nous pouvons contribuer à un avenir plus durable pour l'industrie de la construction. En 1 an et demi de commercialisation, Koncrete c’est : 350+ chantiers livrés (dont le Village Olympique, un chantier du Grand Paris, etc) 8000+ demande de devis 20 000+ tonnes vendues Mais aussi : 1er prix du Startup Challenge (Seattle, USA) Incubateur : emlyon business school Accélérateur : Wilco #Construtech Partenaires : BPI France & Région Île-de-France

Listed Jobs

Company Name: KONCRETE
Job Title: [Stage] Développeur Full Stack H/F
Job Description: **Job Title**: Full Stack Developer Intern (F/M) **Role Summary**: Internship focused on developing and enhancing a web-based construction material procurement platform. The role involves full-stack development, technical design, bug fixing, integration, and automation, while collaborating closely with product, operations, and engineering teams. **Expactations**: - Deliver high‑quality code for both front‑end and back‑end components. - Participate in architecture discussions and contribute to technical decision‑making. - Automate operational processes and maintain integrations with partner tools. - Communicate regularly with cross‑functional teams to align on product priorities. - Continuously learn and adapt in a fast‑moving startup environment. **Key Responsibilities**: 1. Develop and improve core web application features (React/Next.js front‑end, Node.js/Express back‑end). 2. Design technical specifications for new features and refactor existing code. 3. Identify, troubleshoot, and resolve bugs; improve performance and maintainability. 4. Build and maintain integrations with internal systems and external partners via REST/GraphQL APIs. 5. Automate data flows, synchronization, and operational workflows. 6. Work with product, operations, and business teams to understand requirements and translate them into technical solutions. **Required Skills**: - Strong grasp of web development fundamentals (HTML, CSS, JavaScript/TypeScript). - Experience with modern front‑end frameworks (React, Next.js, or similar). - Knowledge of back‑end development (Node.js/Express or equivalent). - Familiarity with database systems (SQL or NoSQL). - Proficiency with version control (Git) and CI/CD pipelines. - Ability to write clean, testable code and follow coding best practices. - Problem‑solving mindset, self‑motivation, and quick learning ability. **Required Education & Certifications**: - Current student or recent graduate of an engineering school, university, or equivalent program in Computer Science, Software Engineering, or related field. - Solid foundation in web development concepts and tools. ---

Paris, France

Hybrid

03-02-2026

Company Name: KONCRETE
Job Title: [CDI] Lead Dev Fullstack H/F
Job Description: Job Title: Lead Fullstack Developer (CDI) Role Summary: Lead end‑to‑end development of a high‑scale ConstructionTech platform, including mobile app, back‑office, vehicle tracking, AI‑based route optimization, and API services. Collaborate with CTO and product team to shape architecture, ensure performance, reliability, and secure design. Drive technical leadership, mentor junior engineers, and contribute to entrepreneurial growth. Expactations: Deliver production‑ready features with high reliability, lead architectural improvements, mentor and manage a small technical team, and maintain a user‑centric product vision. Own cross‑functional communication and decision‑making for scalable solutions. Key Responsibilities: - Design, develop, and deploy new platform features (mobile, back‑office, APIs). - Optimize performance, scalability, and security of backend services. - Define and enforce coding standards, best practices, and DevOps pipelines. - Manage a technical team, provide mentorship and code reviews. - Collaborate with product and UX teams to deliver exceptional user experiences. - Participate in strategic product road‑mapping and execution. - Champion continuous learning and skill development within the team. Required Skills: - Deep knowledge of web ecosystem: REST APIs, SQL (PostgreSQL/MySQL), Docker, CI/CD, scalable and secure architecture. - Proficiency in modern full‑stack technologies (Node.js/Vue/React, etc.). - Experience in performance profiling, caching, and load‑balancing. - Strong microservices or monolith design expertise. - Leadership experience managing small engineering teams. - Excellent communication and stakeholder management. - Curiosity for new technical challenges and an entrepreneurial mindset. Required Education & Certifications: - Degree from a top engineering school or equivalent in Computer Science/General Engineering. - Relevant certifications in cloud platforms (AWS/Azure/GCP), DevOps, or security may be an advantage.