Tooba

Full Stack Developer & AI Engineer

Upwork • Freelance

Feb 2024 - Present • 2 yrs 6 mos

I have been working as a freelance AI Engineer on Upwork since February 2024, building custom AI-powered applications and backend systems for clients across different industries. My work focuses on developing production-ready AI solutions using Large Language Models (LLMs) such as OpenAI, Claude, and Gemini. I specialize in building intelligent systems that solve real business problems rather than simple prototypes. Key projects include: AI chatbot development for websites and customer support automation Retrieval-Augmented Generation (RAG) systems for document and knowledge base Q&A Custom AI agents for automation, data processing, and workflow optimization API integrations and backend development using Python and FastAPI I work extensively with modern AI frameworks and tools such as LangChain, LangGraph, vector databases (Pinecone, ChromaDB, NeonDB), and REST APIs to build scalable and reliable systems. My focus is on clean architecture, performance, and real-world usability, ensuring that AI systems are not only intelligent but also practical and production-ready.

AI Engineer

PWC Solutions Limited • Tiempo completo

May 2025 - Aug 2025 • 3 mos

I worked full-time as a Developer at a company where I was responsible for building and maintaining their core web platform as well as developing AI-powered automation systems to support business growth and client acquisition. My role included designing and developing a responsive company website using modern web technologies, ensuring performance, scalability, and a clean user experience. In addition to web development, I built an AI-powered client acquisition agent that automated parts of the lead generation and outreach process. The system helped identify potential clients, streamline communication workflows, and improve overall sales efficiency through AI-driven automation. Key contributions: Full-stack development of PWG(Panda Works Global) website with optimized UI/UX Development of an AI agent for client acquisition and lead generation API integrations and backend automation systems Improving internal workflows using AI-based tools and automation Collaborating with stakeholders to translate business needs into technical solutions This experience strengthened my ability to build production-level systems that combine web development with practical AI applications focused on real business outcomes. Note: PWG was unavailable so I've used PWC instead.

Graphic Designer & Illustrator | Fiverr (Prior Experience)

Fiverr • Freelance

Dec 2021 - Nov 2023 • 1 yr 11 mos

Before transitioning into AI engineering, I worked as a freelance Graphic Designer and Illustrator on Fiverr, where I collaborated with clients to create visually compelling designs and digital illustrations for brands, startups, and personal projects. My work included logo design, social media creatives, branding assets, and custom illustrations tailored to client requirements and brand identity. This experience helped me develop a strong understanding of visual communication, user-centric design, and client collaboration in fast-paced freelance environments. Over time, I developed a deeper interest in software engineering and AI systems, which led me to transition into full-stack development and LLM-based applications. This creative foundation continues to help me today when building AI-powered applications, especially in designing intuitive user experiences for chatbots, AI tools, and web-based interfaces.