william marquez Senior Fullstack Developer

Why should you work with me ?

I'm a Senior Fullstack Developer with over 18 years of experience crafting scalable, high-performance web applications that empower businesses to thrive. I specialize in delivering end-to-end solutions, seamlessly bridging front-end and back-end development to create user-focused, robust, and efficient systems. Known for my problem-solving mindset, clear communication, and dedication to quality, I partner with clients to turn their vision into reality, on time and within budget. My Skills : Frontend: HTML, CSS, JavaScript, React, Next.js, Angular, Vue, Typescript, Ionic, TailwindCSS, MUI, BoostStrap, Shadcn/ui Backend: Node.js, Express.js, NestJS, Python, Django, FastAPI, Java, Spring Boot, PHP, Laravel, Yii, GraphQL, Postman Mobile: React Native, Flutter, iOS/Android Cloud Services: AWS(S3, Lambda, EC2, Amplify, API Gateway), GCP, Azure, Firestore / Firebase Databases: SQL(PostgreSQL, MySQL), NoSQL(MongoDB, Redis, Cassandra, DynamoDB) CI/CD & DevOps: Git, Jenkins, Docker, Kubernetes, Terraform, Ansible CMS: WordPress, Shopify, WooCommerce AI: Large Language Model(LLM), AI Chatbot, OpenAI, GPT, LangChain, HuggingFace, Pinecone, AI Integration