Jakub Kontra

Background

About Jakub Kontra

Hi, I’m a Senior JavaScript Engineer (ex-Fitify) passionate about building attractive websites, scalable web services, and AI-driven solutions. I enjoy deadly deadlines, combining modern web development, project management, and security best practices to deliver products that perform and scale and of course IN TIME. Core Expertise Custom CRM systems (PWA) – end-to-end (front-end & back-end) Firebase Startup Integrations – Auth, Firestore, Cloud Functions, scalable setups Web & Mobile Development – React.js, Next.js, React Native, TypeScript AI Applications – LangChain, AI Agents integration into web products APIs & Integrations – REST, GraphQL, custom backends Project Management – leading medium teams (10–20 people), SCRUM methodology CI/CD & DevOps – AWS, Terraform, Github Actions, Linux server administration Performance & Security – optimization, scalability, and system reliability Additional Skills Database design & architecture (Postgres SQL, MySQL, no-sql like (Mongo DB, firebase) E-commerce (Shopify customization, Google Analytics, custom solutions) UI/UX, Accessibility, Usability improvements Teaching, mentoring, and providing technical training Let’s Connect Whether you’re looking for someone to lead a team, boost your product with AI, or build a scalable web/mobile app, I’d be happy to discuss cooperation.