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Kaleem Qasim

@kaleemqasim

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Technical Lead at Nextek Systems LTD building AI agents and RAG systems for multi-tenant applications.

Pakistan

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At Nextek Systems LTD, I architected AI agents and chatbots using the Anthropic API and FastAPI, automating responses to over 70% of routine customer queries. I also designed a RAG system that improved knowledge-base response accuracy and cut average query resolution time by over 30%.

I lead full-stack development of multi-tenant applications using PHP, Laravel, MySQL, and React, and tune systems for performance and reliability. Previously, at Devsinc and Enigmatix LTD, I developed web applications and APIs, optimized databases, and contributed to Python/Django applications.

Experience

Work history, roles, and key accomplishments

Current

Technical Lead (PHP)

Current

Nextek Systems LTD

Oct 2022 - Present (4 years 1 month)

Architected and deployed autonomous AI agents and intelligent chatbots using the Anthropic API and FastAPI, automating responses to over 70% of routine customer queries. Designed a RAG system with vector-based semantic search, improving response accuracy and cutting query resolution time by over 30%.

PHP Laravel MySQL React fastAPI Python Anthropic API RAG AI Agents Tool Use Multi tenant SaaS REST APIs Docker Linux Nginx Apache Team Mentoring Code Review

Sr. Software Engineer

Devsinc

Mar 2021 - Oct 2022 (1 year 7 months)

Engineered and maintained high-performance applications using PHP/Laravel and React.js/Next.js, serving 5,000+ daily active users with 99.5% uptime. Designed secure RESTful APIs with robust authentication and RBAC, and optimized database performance to reduce page load times by 35%.

PHP Laravel React Next.js REST APIs Authentication RBAC MySQL Query Optimization Caching WebSockets Cron Job Chrome extensions SOLID Dry MVC

Software Engineer

Enigmatix LTD

Oct 2019 - Feb 2021 (1 year 4 months)

Developed user-focused web applications, creating modular, reusable Laravel components that cut feature development time by 20%. Refactored legacy codebases to eliminate technical debt, improving application performance by 25%.

PHP Laravel Python Django API Design Refactoring Clean Code Teamwork