William Keri

Software Engineer • Competitive Programmer

About

Passionate Full Stack Developer with expertise in modern web technologies and AI/ML integration. Currently interning as Full-Stack Developer while freelancing on community and innovative projects. I specialize in building scalable applications with a strong foundation in competitive programming and cloud technologies like AWS and Docker, always focusing on delivering efficient, user-centric solutions that drive business value.

Experience

Full Stack Developer Intern

LabFox.Studio, RemoteJul 2025 - Present

Contribute to the backend architecture leveraging FastAPI, Kafka and LangGraph to power RAG features. Developed comprehensive APIs to integrate data from open-source DataHub SDKs, REST OpenAPIs, and GraphQL endpoints, resulting in 30-40% improved API response times. Implemented scalable dataset processing pipelines through strategic chunking and optimized retrieval workflows.

Software Engineer

Self-EmployedJul 2025 - Present

Managing end-to-end freelance projects independently, including client communication, requirement gathering, and technical negotiations to deliver tailored solutions. Architecting robust cloud infrastructure using AWS Lambda, S3, and CloudFormation for scalability and efficient resource management. Integrating Redis for backend caching and Cloudflare for global CDN and DNS management, improving performance.

My Skills

CC++PythonJavaJavaScriptTypeScriptReactNext.jsExpress.jsNode.jsFastAPILangChainLlamaIndexFAISSMongoDBMySQLPostgreSQLRedisChromaDBGitDockerLinuxAWS LambdaAWS S3CloudWatchCloudFormationCloudflare

Projects

The Raja Cycle Stores

Developed a scalable serverless e-commerce platform with robust cloud infrastructure using AWS Lambda, S3, and CloudFormation. Implemented Redis caching for backend optimization and integrated Cloudflare for global CDN to enhance performance. Designed secure APIs for product management, demonstrating expertise in full-stack development and cloud-native architecture.

Next.js
TypeScript
Node.js
Express.js
AWS Lambda
AWS S3
Cloudflare CDN
MongoDB
Redis

Balaji Traders

Currently developing a comprehensive e-commerce platform for Balaji Traders, a cement and building materials company. Features include product catalog showcase, detailed product listings with specifications, customer inquiry system, and a complete admin panel for inventory management, order processing, and content management.

Next.js
TypeScript
Node.js
Express.js
MongoDB

Get In Touch

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