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Sajjad Arif Gul

Senior Software Engineer & AI Solutions Engineer

I build production-grade AI systems and scalable enterprise applications on .NET — from systems serving 5,000+ users to sajjad.ai, an end-to-end multi-lingual AI platform.

About Me

Hi! I'm Sajjad Arif Gul, a Senior Software Engineer and AI Solutions Engineer with 10+ years of experience in full-stack development. I specialize in .NET Core, AI APIs integration, and scalable enterprise architectures. My passion lies in designing and shipping production-grade AI solutions, integrating advanced models like OpenAI, DeepSeek, and Ollama to solve real-world problems.

I recently architected and built sajjad.ai, a multi-lingual AI tools platform supporting document RAG, real-time chats, and code generation. I focus on Clean Architecture, high-performance database design (SQL, Redis, Vector DBs), and robust API systems.

Open to remote roles and onsite opportunities with relocation support (Notice Period: 1-2 months).

Explore Featured Project View Resume PDF

Skills Technical Skills

Artificial Intelligence

  • OpenAI, DeepSeek, and Ollama API integrations (Core)
  • Retrieval-Augmented Generation (RAG) & Vector Databases
  • Prompt engineering & agentic systems development

Backend Engineering

  • C#, ASP.NET (Core 8, Web APIs, MVC) (Primary Stack)
  • Clean Architecture, Repository Pattern, Dependency Injection
  • Entity Framework, Dapper, and Feeder Services

Frontend & Tools

  • React (TypeScript) (Primary Framework), Vue.js, Angular (Familiar)
  • HTML5, CSS3, Tailwind CSS, Bootstrap, JavaScript/jQuery
  • Git (Primary), SVN version control systems

Databases & Integration

  • SQL Server, MySQL database design & tuning
  • Redis caching, key-value storage
  • Payment Gateway Integrations (HyperPay, Payfort, Authorize.Net, AlRajhi BPG)

Experience Experience

Senior Software Engineer & AI Solutions Engineer at University of Business and Technology (UBT)

October, 2023 — Present • Full-time • Jeddah, Saudi Arabia
  • Designed and built the digital infrastructure for the 19th Asia Pacific Conference on Giftedness (APCG2026), utilizing React/Vite, .NET Core APIs, OpenConf, and Amazon Payfort integration.
  • Received a Certificate of Appreciation from the UBT President in recognition of exceptional contribution to UBT's digital transformation applications.
  • Developed and maintained IT systems for 5,000+ students and staff using .NET Core and MySQL.
  • Upgraded legacy modules to .NET Core 8, improving performance and maintainability.
  • Implemented Clean Architecture and Repository Pattern across multiple projects.

Senior Software Engineer at Argaam - Danat

July, 2018 — October, 2023 • Full-time • Riyadh, Saudi Arabia (Remote)
  • Led a team to develop Argaam Tools for C-level executives & investors.
  • Implemented new Argaam Subscriptions and spearheaded Argaam Data APIs (120+ endpoints).
  • Redesigned and developed IPOs and Mergers & Acquisitions Reporting Services.

Software Engineer at Argaam - Danat

December, 2016 — July, 2018 • Full-time • Riyadh, Saudi Arabia (Remote)
  • Maintained Argaam.com and related business applications for financial market data.
  • Developed and maintained data feeder services and subsidiary websites.

.NET Developer at ComSouls Technologies

February, 2016 — November, 2016 • Full-time
  • Developed ASP.NET MVC powered websites and APIs for various projects.
  • Key projects: Tutor Finder, Pakimandi, MartX, ComplaintMS.

Achievements Key Achievements

  • Employee of the Year 2021: Awarded during remote service for outstanding contributions to Argaam - Danat, recognized for leadership and engineering excellence.
  • Commercial Project Success: Architected, built, and sold personal commercial web projects and scripts 720+ times on Envato CodeCanyon.
  • AI Product Launch: Successfully built and launched sajjad.ai, an end-to-end multi-lingual AI platform from scratch, integrating OpenAI, DeepSeek, and Ollama.

Education Education & Certifications

BSc. Software Engineering at Bahria University

September, 2012 — June, 2016

Focused on Software Engineering principles, database design & optimization, object-oriented programming, and web systems development. Completed graduation project with high standing.

Professional Certifications

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ChatGPT Prompt Engineering DeepLearning.io • 2024
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CompTIA A+ Certification PNS Johar • 2012

Testimonials Testimonials

"Sajjad is an exceptional engineer. He spearheaded the design of the Argaam Tools platform, delivering high-performance .NET Web APIs that transformed how our investors consume financial market data. His work ethic is top-notch."
Omer Khan - Software Development Manager Argaam - Danat
"Under Sajjad's technical leadership, the digital infrastructure for the APCG2026 conference was developed seamlessly. His integration of payment systems and full-stack architecture exceeded our expectations."
Hamid Anjum - Head of Software Development University of Business and Technology

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