Hi, I'm UMAR 👋
Senior Front-end Engineer with 4+ years of experience in React, TypeScript, and Next.js, specializing in building scalable, SEO-friendly, fully secure, and user-focused applications.

About

Frontend Developer with 4+ years of experience in React, TypeScript, and Next.js, specializing in building scalable, SEO-friendly, fully secure, and user-focused applications. Contributed to Prompt Privacy's Data-as-a-Service platform, helping companies manage data efficiently, and developed a comprehensive healthcare platform featuring video consultations, secure payments, scheduling, and integrated pharmacy and lab services.

Work Experience

S

Spark AI
Security
AI
Voice Tech

11/2024 - Present
Senior Frontend Developer
• Enhanced web security posture by implementing OWASP ZAP, Semgrep, Snyk, and best security practices, proactively detecting and mitigating vulnerabilities and reducing potential exploits by 40%. • Engineered a Live Voice Mode feature, enabling real-time conversational interaction with LLMs through seamless speech-to-text (STT) and text-to-speech (TTS) integration. • Built an Agent Studio at Prompt Privacy, enabling users to generate company-specific and personalized curated prompts, improving LLM output quality and efficiency.
G

Genetics Pharmaceuticals
Payments
Healthcare
Performance

08/2024 - 04/2025
Senior Frontend Engineer
• Integrated payment gateways (Jazz Cash, EASYPAISA, and bank transfers) to enable seamless, secure transactions, enhancing user experience and platform reliability. • Optimized the admin dashboard for efficient data management and enhanced Core Web Vitals for faster load times, ensuring a seamless and smooth user experience.
Z

Zweidevs
Audio
E-commerce
Engagement

08/2023 - 08/2024
Front-end Engineer
• Amplified user engagement by 35% in two months by creating audio processing app with Wavesurfer.js, enabling uploads, musical form dissection, and timeline-based similarity search. • Boosted sales by 30% in six months by engineering a feature-rich e-commerce platform with React, TypeScript, and Redux Toolkit, enabling product listings, purchasing, and a two-way review system.
F

Freelance
Full-Stack
Consulting
Startups

03/2021 - 08/2023
Freelance Front-end Developer
• Delivered custom web solutions for various clients including startups, small businesses, and individual projects across e-commerce, SaaS applications, and corporate websites. • Specialized in React and Next.js development, API integrations, and performance optimization for diverse industry needs. • Managed end-to-end project lifecycles from requirements gathering to deployment, ensuring high-quality, scalable solutions that met client specifications and deadlines.

Skills

HTML5
CSS3
JavaScript
TypeScript
React.js
Next.js
Bootstrap
Tailwind CSS
Shadcn UI
Web Security
React Query
SEO
Git
Payment Gateways
Video Streaming
API Integration
Performance Optimizations
My Projects

Check out my latest work

I've worked on a variety of projects, from simple websites to complex web applications. Here are a few of my favorites.

Prompt Privacy (AI Chat Platform)

Prompt Privacy's Data as a Service (DaaS) platform, simplifying data infrastructure management for businesses. Enabled organizations to focus on growth and innovation through seamless, data-driven decision making.

Next.js
React Query
Tailwind CSS
Django
Monorepo

Apka Muaalij (Medical Healthcare)

Developed a healthcare platform using Next.js, integrating secure payment gateways and styled with Tailwind CSS alongside Shadcn UI components for a responsive user experience.

React
Next.js
Tailwind CSS
SEO Optimizations
Payment Gateways (Jazz Cash, EASYPAISA, Bank Transfer)
Shadcn UI

Dytto (E-commerce Platform)

Developed Dytto, an innovative e-commerce platform that merges lending opportunities with charitable giving. Users can buy or rent products from trusted local merchants while supporting meaningful causes. The platform features seamless product exploration, merchant onboarding, and a unique social impact model that democratizes access to financial resources while fostering generosity.

React
Next.js
Tailwind CSS
Payment Gateways
Merchant Dashboard
Product Catalog
API Integration

Practice Tool AI

Built an English learning platform for beginners, incorporating interactive exercises and assessments.

React
TypeScript
Payment Gateway (Stripe)
Authentication
Contact

Get in Touch

Want to chat? Just send me an email at mumararshad4444@gmail.com or connect with me on LinkedIn. I'll respond whenever I can.