Felix N.

I am a results-driven Senior Full-Stack Engineer with over 9 years of experience delivering high-quality, end-to-end web applications, scalable APIs, and robust cloud-native solutions. I specialize in bridging the gap between complex requirements and intuitive, user-centric interfaces, with strong UI/UX awareness. I have proven ability to lead feature development from concept to production and collaborate across cross-functional teams. Key Expertise & Value Proposition: - Full-Stack Leadership: Proven ability to lead feature development from concept to production, manage engineers (managed 6 engineers on a cross-platform healthcare product), and collaborate across cross-functional teams. - Modern Stacks: Expert in React, TypeScript/Node.js, and Python. I build scalable backend architectures using frameworks like NestJS, Flask, FastApi, Django, and Java/Spring Boot. - Industry Experience: Deep experience delivering sophisticated products in demanding sectors, including fintech (built platforms for complex compliance workflows, real-time data analysis, and risk dashboards) , healthcare (led development of a cross-platform product) , and AI-driven products (built LangChain agents and OCR services). - Cloud & Microservices: Proficient in designing and deploying backend microservices using AWS (S3, Lambda, SNS, SQS) , Docker, and modern CI/CD practices. - API & Integration: Highly skilled in building and optimizing REST and GraphQL API layers. Experienced in full-stack migration and integration with critical 3rd-party services like Salesforce, HubSpot, Zoho (CRMs) , Authentication (Okta, Google Auth), and Payments (Stripe, DPO). Core Technical Skills: - Frontend: React, TypeScript, JavaScript, Redux, Tailwind, GraphQL (Apollo), Vue, MaterialUI. - Backend: Node.js (NestJS, Express), Python (Flask, FastApi, Django), Java (Spring Boot). - Databases: PostgreSQL, MySQL, DynamoDB, MongoDB. - DevOps & Tools: AWS, Docker, CI/CD, Kafka, Cypress, Playwright, Jest, Vitest, RTL, Selenium. I am looking to partner with ambitious clients to build exceptional, performance-focused, and scalable applications. Let's discuss how my expertise can accelerate your next project!