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You will get Bug Fixing & Performance Optimization
Project details
If your MERN app is crashing, lagging, or throwing unexpected errors, I can help. I’ll perform a thorough code review of your frontend and backend to identify bugs, optimize API performance, and eliminate bottlenecks. You’ll receive clean, modular code, fixed logic, and smoother UI performance. I also handle code refactoring, improve MongoDB queries, fix Redux/State issues, and test across devices. Whether you're pre-launch or maintaining a live platform, I ensure a more stable and performant user experience.
Programming Languages
PHP, HTML & CSS, PythonCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$150
|
Standard
$300
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 6 days |
Number of Revisions | 0 | 1 | Unlimited |
Number of Pages | 5 | 8 | 12 |
Design Customization | |||
Content Upload | |||
Responsive Design | - | ||
Source Code | - | - |
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OE
Omar E.
Apr 10, 2026
Edit & Rebrand Existing Mobile App (Flutter) + Add “Find My Ring” Feature
We had a great experience working with Abdullah. He consistently delivered effective, high-quality solutions and demonstrated strong problem-solving skills throughout the project. Communication was excellent, he was always available and responded almost instantly, which made the entire process smooth and efficient. Highly recommended for anyone looking for reliability and professionalism.
NT
Nick T.
Sep 17, 2024
AWS configuration with Karlsgate Identity Exchange AWS app
Abdullah did an outstanding job understanding the job requirements upfront and set realistic expectations for the level of effort to complete and the timeline to complete. I would highly recommend Abdullah!
SH
Shehab H.
Mar 7, 2024
Deploy soketi and soketi dashboard to local server
very professional he did the required work and more, will hire him again in my next project
FM
Fausto M.
Nov 15, 2019
Add-On & QPlanner
LF
Luke F.
Sep 26, 2016
Website develop
Best freelancer I have used. His skills are amazing and his attention to detail is great. Will use Fahad again as he is a very good worker and highly recommended. Thank you!! A+++++++
About Abdullah
AI Agents & MCP Developer | LLM Automation Engineer | RAG Systems
100%
Job Success
Riyadh, Saudi Arabia - 11:47 am local time
🏆 Achieved a 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 on Upwork – Expert-Vetted (Top 10 Worldwide)
✅ 100+ 𝐡𝐨𝐮𝐫𝐬 𝐰𝐨𝐫𝐤𝐞𝐝 with a strong focus on business outcomes and quality
🤝 𝟑𝟎+ 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝, turning ideas into working software from start to finish
Building production-ready AI agents, MCP servers, and LLM-powered automation systems for startups and SaaS products. From RAG assistants to tool-using agents and workflow automation, the focus is on turning AI concepts into scalable, deployable systems that deliver real business value.
Hi! I'm Abdullah Tariq, an AI Engineer and Full-Stack Developer specializing in modern LLM ecosystems and intelligent automation. I help startups and businesses design, build, and deploy AI-powered products that go beyond prototypes reliable, scalable, and ready for real users.
𝐌𝐲 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:
AI Agents & Automation: Tool-using agents, multi-step workflows, autonomous systems
RAG Systems: Vector search, embeddings, knowledge retrieval pipelines
MCP Servers: Context orchestration and modular AI system design
LLM Integration: OpenAI & open-source models (custom pipelines & orchestration)
Backend Development: Node.js, Python, REST APIs, Webhooks
Database & Search: Vector DBs, MongoDB, PostgreSQL
Cloud & Deployment: Docker, serverless, scalable infrastructure
With a strong foundation in both software engineering and applied AI, I build systems that are not just functional but efficient, maintainable, and production-ready. Whether it's an AI assistant, SaaS automation engine, or internal workflow system, the goal is always impact and scalability.
𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐋𝐨𝐯𝐞 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞:
Clear and consistent communication
Clean, modular, and maintainable code
Fast turnaround and on-time delivery
Long-term mindset — building as a true product partner
Ready to build or scale your AI product? Send an invite and let’s discuss how to bring it to life
Steps for completing your project
After purchasing the project, send requirements so Abdullah can start the project.
Delivery time starts when Abdullah receives requirements from you.
Abdullah works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Consultancy