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Hamza S
@hamzaa_saleem
AI and Backend Engineer Python LLMs RAG
Pakistan
English, Urdu
About me
I build AI chatbots, RAG systems, and Python backends for startups and businesses. Real products, not demos. I work with OpenAI, Claude, LLaMA, LangChain, and LlamaIndex to build chatbots trained on your data, integrate AI into existing apps, and develop scalable APIs using FastAPI, Django, and Flask. 6+ years of backend and AI work. Previously Top Rated on other freelance platform with 100% Job Success Score. I've shipped production systems for clients in the US, EU, and Australia. Need something built properly? Let's talk.
Skills
Hamza S
$30/hour
Offline •
Average response time: 1 hour
See my services
Customization
I will edit or update wordpress website
WordPress
I will do SEO optimized wordpress website development for business
Want to work on an hourly basis?
Tell Hamza S what you need.
$30
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hourPortfolio
Work experience
Freelance AI & Backend Engineer (Top Rated)
Upwork • Full-time
Aug 2019 - Present • 6 yrs 9 mos
Top Rated with 100% Job Success Score. $20K+ in completed projects. LLM integrations, REST APIs, AI-powered features for US, EU, and AU clients.
AI & Backend Engineer
Techverx • Full-time
Feb 2025 - Dec 2025 • 10 mos
Backend systems with Python, Django, Flask. RESTful APIs, payment integrations, PostgreSQL/MySQL optimization.
45 Reviews
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Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
1-5 out of 45 Reviews
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Most relevant
anniestoker
Repeat Client
United Kingdom
Hamza found the cause of a major problem with my website and fixed it effectively. I'm thrilled the site is back up!
Helpful?
anniestoker
Repeat Client
United Kingdom
Helpful?
fawadrph
United States
1. Honestly, I was a little skeptical of the claim that he would address the inquiry within an hour BUT he did although it was too late at night. 2. I liked the professionalism that was maintained all throughout the process. 3. I really appreciate the questions that were asked as they gave me the confidence...
Helpful?
samtechlhr
Pakistan
Hamza did a great job. He is Knowledgeable, Fast and Efficient. Highly Recommended!!
Helpful?
kizmedia
Repeat Client
United States
Helpful?
