Hi, I’m Nazir Sina Kazimi, a software engineer with 8+ years of experience designing and building scalable, cloud-native web applications. I specialize in end-to-end full-stack solutions with React/Next.js on the frontend and Node.js/FastAPI/Flask on the backend, and I love integrating AI/ML models and LLM APIs to deliver intelligent, data-driven experiences. I have a strong foundation in cloud platforms (GCP, AWS), CI/CD automation, and clean architecture. I enjoy collaborating across disciplines, mentoring developers, and delivering reliable production systems with measurable business impact.…

Nazir Sina Kazimi

Hi, I’m Nazir Sina Kazimi, a software engineer with 8+ years of experience designing and building scalable, cloud-native web applications. I specialize in end-to-end full-stack solutions with React/Next.js on the frontend and Node.js/FastAPI/Flask on the backend, and I love integrating AI/ML models and LLM APIs to deliver intelligent, data-driven experiences. I have a strong foundation in cloud platforms (GCP, AWS), CI/CD automation, and clean architecture. I enjoy collaborating across disciplines, mentoring developers, and delivering reliable production systems with measurable business impact.…

Available to hire

Hi, I’m Nazir Sina Kazimi, a software engineer with 8+ years of experience designing and building scalable, cloud-native web applications. I specialize in end-to-end full-stack solutions with React/Next.js on the frontend and Node.js/FastAPI/Flask on the backend, and I love integrating AI/ML models and LLM APIs to deliver intelligent, data-driven experiences.

I have a strong foundation in cloud platforms (GCP, AWS), CI/CD automation, and clean architecture. I enjoy collaborating across disciplines, mentoring developers, and delivering reliable production systems with measurable business impact.

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Skills

Experience Level

MongoDB
Expert
Web Design
Expert
Vue.js
Expert
Tailwind
Expert
SQL
Expert
Solidity
Expert
React Native
Expert
React JS
Expert
Python
Expert
PostgreSQL
Expert
Node.js
Expert
MySQL
Expert
AngularJS
Expert
JavaScript
Expert
Ethereum
Expert
AWS
Expert
Bootstrap
Expert
CSS
Expert
Java
Expert
Express
Expert
Github
Expert
HTML5
Expert
Docker
Expert
TypeScript
Expert
Microsoft SQL
Expert
Django
Expert
Rust
Expert
GraphQL
Expert
Redis
Expert
Kubernetes
Expert
Google Cloud
Expert
PyTorch
Expert
Ethers.js
Expert
TensorFlow
Expert
See more

Language

Spanish; Castilian
Fluent
English
Fluent
Turkish
Advanced
Portuguese
Advanced
Persian
Intermediate
Arabic
Advanced

Work Experience

Lead Full Stack Developer & Technical Architect at Mekkat o CreateTech Studio Ltd
June 1, 2025 - Present
Developed and maintained Next.js (TypeScript) applications integrated with Firebase for real-time data and authentication. Designed Python (FastAPI + Flask) microservices and back-end APIs, reducing response latency by 40% through API optimization and caching. Integrated OpenAI & Hugging Face APIs for intelligent content generation and semantic search. Automated deployments using Docker, GitHub Actions CI/CD pipelines, and Google Cloud Platform (GCP) with Firebase Hosting, ensuring scalable and reliable production environments. Conducted technical code reviews for AI-powered platform, enforcing best practices in clean architecture, performance optimization, and maintainability. Provided technical leadership, mentoring developers on cloud-native practices, AI-first application design, and scalable full-stack patterns.
Senior Software Engineer at Suffescom Solutions Pvt.
April 1, 2025 - October 10, 2025
Developed and maintained full-stack Web3 applications using React.js, Next.js, and TypeScript on the frontend, and Node.js / Express.js on the backend. Integrated wallet authentication and smart-contract interactions with Ethers.js and Web3.js, improving transaction reliability by 20%. Designed and implemented RESTful APIs and microservices, supporting decentralized app scalability for 50K+ active users. Deployed and managed applications on AWS and GCP, leveraging Docker and GitHub Actions for CI/CD automation. Collaborated with cross-functional teams in an Agile/Scrum setup to deliver reliable, high-quality web solutions.
Software Engineer (Full Stack & AI Systems) at GF TIT Consulting SL
August 1, 2024 - October 10, 2025
Delivered full-stack solutions using Next.js (TypeScript), React.js, Node.js, and Python (FastAPI / Flask). Designed and implemented RESTful and GraphQL APIs connecting AI/ML models to data-driven frontends for real-time analytics. Optimized system performance using async processing and query caching, cutting API latency by 40%. Collaborated with data scientists and DevOps to deploy cloud-ready solutions on GCP and AWS, scaling applications to handle 100K+ users. Ensured reliability through automated testing (Jest, Cypress, PyTest) and CI/CD pipelines (GitHub Actions).
Senior Frontend Developer at Zimmplify LLC / Spotlightr service
March 1, 2022 - October 10, 2025
Developed AI-enhanced dashboards and a Chrome extension using React.js, Angular, and Vue.js, boosting user engagement by 40%. Integrated front-end dashboards with Node.js / Python APIs for real-time video analytics. Improved UX performance through code splitting, lazy loading, and reusable component design.
Software Developer at Various projects (Spain)
January 1, 2020 - October 10, 2025
Contributed to full-stack and mobile development projects in Spain, focusing on React, Node.js, and Python across IoT and ERP systems.
Lead Full Stack Developer & Technical Architect at Mekkat o CreaT ech Studio LTD
June 1, 2025 - Present
Led development and maintenance of Next.js (TypeScript) applications integrated with Firebase for real-time data and authentication. Designed Python microservices (FastAPI + Flask) and back-end APIs, reducing response latency by 40% through API optimization and caching. Integrated OpenAI & Hugging Face APIs for intelligent content generation and semantic search. Automated deployments using Docker, GitHub Actions CI/CD pipelines, and Google Cloud Platform (GCP) with Firebase Hosting, ensuring scalable, reliable production environments. Conducted technical code reviews for AI-powered platform, enforcing best practices in clean architecture, performance optimization, and maintainability. Provided technical leadership, mentoring developers on cloud-native practices, AI-first application design, and scalable full-stack patterns.
Senior Software Engineer at Suffescom Solutions Pvt.
April 1, 2025 - October 10, 2025
Developed and maintained full-stack Web3 applications using React.js, Next.js, and TypeScript on the frontend, and Node.js / Express.js on the back end. Integrated wallet authentication and smart-contract interactions with Ethers.js and Web3.js, improving transaction reliability by 20%. Designed and implemented RESTful APIs and microservices, supporting decentralized app scalability for 50K+ active users. Deployed and managed applications on AWS and GCP, leveraging Docker and GitHub Actions for CI/CD automation. Collaborated with cross-functional teams in an Agile/Scrum setup to deliver reliable, high-quality web solutions.
Software Engineer (Full Stack & AI Systems) at GFT IT Consulting SL
August 1, 2024 - October 10, 2025
Delivered full-stack solutions using Next.js (TypeScript), React.js, Node.js, and Python (FastAPI / Flask). Designed and implemented RESTful and GraphQL APIs connecting AI/ML models to data-driven frontends for real-time analytics. Optimized system performance with asynchronous processing and query caching, reducing API latency. Collaborated with data scientists and DevOps to deploy cloud-ready solutions on GCP and AWS, scaling applications to handle 100K+ users. Ensured reliability through automated testing (Jest, Cypress, PyTest) and CI/CD pipelines (GitHub Actions).
Senior Frontend Developer at Zimmplify LLC
March 1, 2022 - October 10, 2025
Developed AI-enhanced dashboards and a Chrome extension using React.js, Angular, and Vue.js, boosting user engagement by 40%. Integrated frontend dashboards with Node.js / Python APIs for real-time video analytics. Improved UX performance through code splitting, lazy loading, and reusable component design.
Software Developer at Various (Spain)
January 1, 2020 - October 10, 2025
Contributed to full-stack and mobile development projects in Spain, focusing on React, Node.js, and Python across IoT and ERP systems.

Education

Master's degree, Computer Science at Universitat Politècnica de Catalunya
April 1, 2015 - April 1, 2017
Undergraduate, Electrical and Electronics at Universidad de Alcalá
April 1, 2014 - April 1, 2015
Undergraduate, Electrical and Electronics at Gazi University
April 1, 2009 - April 1, 2013
Master's degree in Computer Science at Universitat Politècnica de Catalunya
January 1, 2015 - January 1, 2017
Bachelor's degree in Electrical and Electronics Engineering at Universidad de Alcalá
January 1, 2014 - January 1, 2015
Bachelor's degree in Electrical and Electronics Engineering at Gazi University
January 1, 2009 - January 1, 2013
Master's degree in Computer Science at Universitat Politècnica de Catalunya
January 1, 2015 - January 1, 2017
Undergraduate degree in Electrical and Electronics Engineering at Universidad de Alcalá
January 1, 2014 - January 1, 2015
Undergraduate degree in Electrical and Electronics Engineering at Gazi University
January 1, 2009 - January 1, 2013
Master's degree in Computer Science at Universitat Politècnica de Catalunya
January 1, 2015 - January 1, 2017
Undergraduate in Electrical and Electronics Engineering at Universidad de Alcalá
January 1, 2014 - January 1, 2015
Undergraduate in Electrical and Electronics Engineering at Gazi University
January 1, 2009 - January 1, 2013
Master's degree in Computer Science at Universitat Politècnica de Catalunya
January 1, 2015 - January 1, 2017
Undergraduate in Electrical and Electronics Engineering at Universidad de Alcalá
January 1, 2014 - January 1, 2015
Undergraduate in Electrical and Electronics Engineering at Gazi University
January 1, 2009 - January 1, 2013

Qualifications

Add your qualifications or awards here.

Industry Experience

Computers & Electronics, Education, Financial Services, Healthcare, Government, Gaming, Professional Services, Software & Internet, Travel & Hospitality, Media & Entertainment, Other
    paper Chewy

    Chewy.com is a leading online retailer specializing in pet products, offering a wide range of items from food and toys to healthcare supplies for various animals, including dogs, cats, fish, birds, and more. The platform is designed to provide pet owners with a convenient shopping experience, featuring 24/7 customer support and a user-friendly interface.

    Technically, Chewy.com employs modern web technologies to enhance its performance and user experience. The company has utilized React and Next.js for front-end development, enabling the creation of highly interactive and responsive user interfaces. This approach is evident in their job postings, which list experience with these technologies as desirable qualifications.

    In addition to its robust front-end, Chewy.com integrates AI-powered solutions to optimize various aspects of its operations. For instance, the platform utilizes Dynatrace, an AI-driven monitoring and analytics tool, to gain insights into user interactions, transactions, and application performance. Furthermore, the company has developed features like an AI-powered product recommendation engine to enhance the shopping experience.