Building Modern
Web Experiences
That Scale
Specializing in React, Next.js, and TypeScript to create high-performance, accessible applications that deliver exceptional user experiences.
Delivering Production-Ready Solutions
Expertise in Modern Frontend Development
Frontend Software Engineer with 4+ years of experience building scalable web applications using React, Next.js, Angular, and TypeScript. I specialize in creating performant, accessible user interfaces while implementing clean architecture patterns and modern development workflows. My work spans from component libraries and design systems to full-stack integrations with AWS and CI/CD pipelines.
From Concept to Production Deployment
I take ownership of features from initial requirements through deployment and monitoring. This includes architecting frontend solutions, implementing responsive designs, optimizing performance metrics, ensuring accessibility compliance, and collaborating with cross-functional teams to deliver measurable business value.
Advanced Engineering,
Human-Centered Design
Built with cutting-edge technology to understand, learn, and adapt to your unique project needs.
Component Architecture
Building reusable, type-safe component libraries with React and TypeScript. Implementing design systems and maintaining component documentation with Storybook.
Responsive & Accessible
Developing mobile-first, fully responsive interfaces with WCAG compliance. Ensuring cross-browser compatibility and optimal performance across all devices.
Performance Engineering
Optimizing Core Web Vitals, implementing code splitting, lazy loading, and bundle size optimization. Proficient in Next.js SSR/SSG for optimal performance.
Modern Tech Stack
Expert in React, Next.js, Angular, TypeScript, and modern CSS frameworks. Experience with Redux, React Context, and state management patterns.
Testing & Quality
Writing unit and integration tests, conducting code reviews, and implementing CI/CD pipelines. Following SOLID principles and clean code practices.
API Integration & DevOps
Integrating RESTful APIs and GraphQL services. Experience with AWS deployment, Docker containerization, and building CI/CD workflows.
Expertise & Technologies
A comprehensive toolkit of modern web technologies and frameworks
Frontend Frameworks
Languages & Tools
Styling & UI
APIs & Data
Professional Journey
Frontend Software Development Engineer
Istari.ai • Mannheim, Germany
July 2025 - Present
Worked as a frontend software developmentengineer building performant, accessible interfaces and integrating frontend features with backend services.
Key Achievements:
- •Developed production-grade Next.js applications and reusable component libraries using TypeScript
- •Implemented server-side and serverless integrations using Python for backend utilities and APIs
- •Built CI/CD pipelines and deployed applications to AWS, improving deployment reliability
- •Optimized frontend performance and accessibility across major pages and components
Software Engineer - Part-time
TeamViewer • Bremen, Germany
Jun 2023 - Jun 2025
Leading frontend development initiatives in the Web Foundation Team, focusing on enterprise-grade solutions and AI-powered features.
Key Achievements:
- •Developed advanced file handling and structured data organization features in the FileManager module using Angular, TypeScript, JavaScript
- •Integrated Chart.js within the Angular framework to visualize real-time 3D smart glass data
- •Designed and implemented an AI-powered transcription feature that converts calls into meeting summaries
- •Delivered the AI transcription solution as a key value driver, resulting in a 2× increase in project funding
Frontend Developer - Part-time
Michelberger Digital • Remote, Germany
Apr 2022 - Jul 2022
Architected scalable frontend solutions and component libraries, establishing design system foundations for multiple applications.
Key Achievements:
- •Built a scalable and reusable Tailwind CSS component library based on Figma design systems
- •Developed core frontend architecture using ReactJS, Next.js, and TypeScript
- •Implemented React Context for efficient state management
- •Utilized Storybook to document and test UI components in isolation
Software Engineer - Full-time
Invotyx • Rawalpindi, Pakistan
Jun 2021 - Nov 2021
Built responsive web applications with focus on real-time functionality and user engagement for social media and food delivery platforms.
Key Achievements:
- •Developed responsive and scalable frontend interfaces using ReactJS, Next.js
- •Designed and implemented key features for a social media platform
- •Built a customer-centric food delivery application
- •Collaborated closely with designers via Figma and implemented real-time functionality using Pusher
Frontend Developer
Octalogix • Lahore, Pakistan
Aug 2020 - Mar 2021
Developed and maintained responsive web applications with modern JavaScript frameworks, focusing on user experience and performance optimization.
Key Achievements:
- •Built interactive user interfaces using React and modern JavaScript
- •Implemented responsive designs ensuring cross-browser compatibility
- •Collaborated with backend developers to integrate RESTful APIs
- •Participated in code reviews and implemented best practices
- •Optimized application performance for improved user experience
Featured Work
SwitchRewardCard
A comprehensive blockchain-based financial services platform featuring advanced reward systems, transaction management, and secure cryptocurrency operations.
Key Features:
- •Dynamic Rewards Table with real-time updates
- •Advanced Transaction History with date range filtering
- •Secure crypto send/receive mechanism
- •Comprehensive component library for scalability
Impact: Enhanced platform usability and user confidence
Technologies Used:
What others say
"I had the pleasure of working closely with Zeeshan Haider Shaheen on a challenging React.js project, and I can confidently say that he is an outstanding React.js developer. Zeeshan's expertise in React.js is truly impressive; he consistently delivered high-quality code that exceeded our expectations."
Saqib Hussain
SQA Engineer | Automation Framework Architect
"You rarely come across someone with a sense of responsibility as strong as Zeeshan's. I worked very closely with Zeeshan for four years as a student. He is a highly motivated individual with a fantastic work ethic. I was always impressed by his motivation even in the darkest of times."
Ahmed Arshed
Software Engineer @ Arbisoft | Python Developer
"Zeeshan is a great developer, I always find him professional and always there for all any issue. Always love working with him."
Abdul Wahab
Designer with a Coding Background | UX/UI | Product Designer
"Zeeshan is a very hard working and friendly person, as a teammate I got to learn a lot from Zeeshan about design, methods and technologies. I wish him best of luck for future endeavors."
Abdullah Ismail
MERN Stack Team Lead at Ropstam Solution Inc
Let's Connect
I'm always open to discussing new opportunities, interesting projects, or just having a chat about technology and development.