Hi, I’m Omar Mostafiz
A Software Engineer with a passion for building AI-powered tools, automation systems, and scalable full-stack applications. I've worked on everything from mobile apps and cloud platforms to LLM-integrated voice assistants, using technologies like React, Node.js, AWS, and many more to solve real-world problems. I love turning complex ideas into clean, efficient code that delivers real impact.
About Me
Hello! I'm Omar Mostafiz, a Software Engineer with a strong focus on building intelligent, scalable, and user-centric solutions. My experience spans full-stack development, mobile apps, and AI-powered automation — including projects like a 24/7 virtual receptionist using VoIP and LLMs, and a generative content engine that automated WordPress publishing using GPT-4 and DALL·E and much more corportate projects.
I thrive in fast-paced environments where I can turn complex problems into elegant, maintainable code. Whether I'm developing fullstack applications, deploying cloud-native systems on AWS, designing APIs, or optimizing app performance, I'm driven by the challenge of building technology that makes life simpler and more efficient.
Beyond coding, I'm a firm believer in collaborative teamwork, continuous improvement, and the power of teamwork. I'm always eager to take on new challenges and contribute to projects that make a positive impact.
My Core Tech Stack:
My Projects
Technologies Used:
Technologies Used:
Technologies Used:
Work Experience
- Led the development of AI-powered automation tools that streamlined content creation and deployed customized LLM client facing receptionists.
- Deployed an end-to-end n8n automation pipeline that generated SEO-optimized WordPress blog posts using GPT-4, DALL·E, DeepSeek, and Google Drive content. This reduced content creation time by 90% and increased publishing volume by 5x.
- Enhanced content quality and engagement by incorporating visually appealing, context-aware imagery and localized property descriptions using generative AI.
- Built a fully customizable AI receptionist system using Twilio (VoIP), AWS Lambda, and OpenAI APIs, tailored per clinic to handle 24/7 incoming calls with dynamic routing and real-time appointment booking.
- Designed the system to support up to 5 concurrent calls, improving lead response time and reducing staff overhead.
- Migrated the backend from PostgreSQL to MongoDB for a real estate brokerage, redesigning schemas and refactoring APIs to enable more flexible data handling and improve database performance by 50%. (for a vendor)
- AO2 - An innovative mobile application specializing in offering secondary business phone numbers and eSIM solutions.
- Participated in the design and led the development of a new mobile app from concept to beta, utilizing React Native, NodeJS, and AWS Serverless Lambda functions.
- Integrated Apple StoreKit and Google Play Billing frameworks to seamlessly manage inapp purchases and user subscriptions, enhancing the app's revenue model while maintaining a smooth user experience.
- Implemented new features for an existing app through third-party APIs, enhancing user acquisition by 300%.
- Utilized Agile methodologies, participating in sprint planning, daily stand-ups, and code reviews to deliver high-quality features on time.
- Led the development of a web application using React and Flask to streamline access to technical publications, improving customer satisfaction and reducing publication retrieval time by 300% for key clients.
- Developed and implemented custom Omnimark scripts to resolve SGML data issues, increasing data integrity and enhancing client trust, which strengthened the relationship with the company's largest client.
- Implemented XSLT scripts to validate XML data accuracy, enhancing quality control over vendor-converted SGML data and eliminating data-related errors.
- Managed and optimized the internal database and publishing tool for technical publications, ensuring data accuracy and reliability for over 30 internal users.
- Was responsible for the technical administrative duties of technical publications such as; adding/removing writers and their privileges, creating manuals and sections, and freezing manuals and adding cut-off dates.
Skills & Technologies
- JavaScriptExpert
- TypeScriptAdvanced
- PythonAdvanced
- HTML5Expert
- CSS3Expert
- ReactExpert
- Next.jsAdvanced
- Node.jsAdvanced
- Express.jsIntermediate
- Tailwind CSSExpert
- FlaskIntermediate
- MongoDBIntermediate
- PostgreSQLIntermediate
- Firebase FirestoreAdvanced
- AWS (EC2, S3, Lambda)Intermediate
- DockerIntermediate
- Git & GitHubExpert
- VercelAdvanced
- FigmaIntermediate
- JiraAdvanced
- REST APIsExpert
Get In Touch
Let's Connect
I'm always open to discussing new projects, creative ideas, or opportunities to be part of something amazing. Feel free to reach out!