Muhammad Junaid
Verified Expert in Engineering
Full-stack Engineer and Developer
Islamabad, Pakistan
Toptal member since June 17, 2026
Muhammad Junaid is a full-stack engineer and computer science gold medalist with more than five years of experience building enterprise software, SaaS platforms, AI-powered applications, and cloud-native systems. He specializes in .NET, React, Python, and modern cloud technologies, helping businesses design scalable, secure, and high-performance software from architecture through production.
Portfolio
Experience
- AI Integration - 5 years
- C# - 5 years
- Python - 5 years
- Full-stack Development - 5 years
- Software Engineering - 5 years
- Web App Development - 5 years
- .NET Core 8 - 5 years
- RESTFul APIs - 4 years
Preferred Environment
Docker, Azure, Software Architecture, GitHub, DevOps, Full-stack Development, Cloud Engineering, API Development, REST APIs, AI Integration
The most amazing...
...application I've built is an ERP suite that improved system performance by 30% and ensured 99.9% uptime.
Work Experience
Senior Full-stack Engineer
MultyLogics Solutions
- Designed and delivered scalable cloud-native systems that improved reliability, deployment efficiency, and operational scalability across enterprise applications.
- Designed and implemented secure, high-performance back-end services supporting complex business operations and integrations.
- Developed AI-powered automation solutions that reduced manual effort and improved operational efficiency.
- Implemented intelligent automation workflows that accelerated data processing and business operations.
- Led development of enterprise applications using .NET Core and React, managing a team of 1-5 developers. Implemented microservices architecture on Azure with CI/CD pipelines, reducing deployment time by 40%.
- Developed and maintained custom Drupal modules using PHP and Composer.
- Integrated third-party APIs and payment gateways into enterprise web applications.
- Developed custom Chrome Extensions for network logging and integrated Cloudflare routing rules to optimize request proxy infrastructure.
Full-stack Developer
ENCS Networks
- Designed and built responsive front-end web layouts utilizing Angular and TypeScript, driving optimization changes across core web vital metrics.
- Constructed secure back-end RESTful APIs using ASP.NET Core and Entity Framework Core to enforce Clean Architecture boundaries, implementing Role-based Access Control (RBAC) modules and JWT token-based authentication mechanisms.
- Built and optimized back-end services and APIs for complex business workflows, improving database performance, query efficiency, integrations, and overall application responsiveness.
- Implemented secure application features, including authentication, authorization, and access control mechanisms, to improve platform reliability.
- Integrated external services and automation workflows while collaborating with engineering teams to streamline operations, resolve complex issues, and deliver production-ready solutions.
Junior Full-stack Developer
NOW TECHNOLOGIES (NOW.NET.PK)
- Assisted senior architects in developing performant web applications using ASP.NET MVC and JavaScript, driving core feature delivery loops ahead of sprint schedules.
- Built front-end and back-end components using modern web technologies to deliver responsive and user-friendly applications.
- Integrated third-party services, APIs, and external systems to expand application capabilities and improve workflows.
- Improved application quality by debugging issues, performing code enhancements, and following software development best practices.
- Analyzed baseline HTTP payloads and debugged proxy network routing mismatches using advanced JavaScript runtime troubleshooting mechanisms.
- Assisted in database development, application optimization, and technical troubleshooting to ensure reliable system performance.
Software Engineer (Freelance)
Secure Tech Cards
- Developed scalable software solutions by translating client requirements into reliable features while building secure back-end services, APIs, and efficient data processing workflows.
- Implemented responsive user interfaces and integrated third-party services while optimizing application functionality, usability, performance, and overall system reliability through clean development practices.
- Debugged technical issues, improved code quality, and delivered stable solutions within project timelines.
- Collaborated with stakeholders to understand requirements, provide technical solutions, and deliver production-ready features.
Experience
MultyLogics ERP Suite & Cloud Operations
https://multylogics.com/National Synchronized Blood Donation & Healthcare Network
https://blooddonations.runasp.net/MapShield International Safety Navigation & Geospatial System
https://mapshield.runasp.netEducation
Bachelor's Degree in Computer Science
Qurtuba University Of Science And Information Technology - Dera Ismail Khan
Certifications
Front-end Certified
HackerRank
Database Certified
TestDome
Certified Software Engineer
HackerRank
Certified Full-stack Engineer
micro1
University Gold Medal for Academic Excellence (Computer Science)
Qurtuba University Of Science And Information Technology
Skills
Libraries/APIs
Web API, React, SignalR, LINQ, Node.js, REST APIs, React Flow, OpenAI API, API Development, Amazon EC2 API, React Query, Stripe, Shopify API, jQuery, Stripe Connect API, Square API, XGBoost, Pandas, Web3.js, PyTorch, Entity Framework, Stripe API
Tools
Git, Jenkins, Apache Airflow, GitLab, Bitbucket, Postman, n8n, NGINX, Claude Code, Terraform, GitHub, Figma, Claude, Shopify Plus, Amazon CloudWatch, Composer, SuiteTalk, Ansible, Observability Tools, Advanced Custom Fields (ACF), Xcode, Jira, Microsoft Power BI, AWS SDK, AWS IAM, Dynamics 365 Business Central, Excel 2016
Languages
C#, TypeScript, Python, JavaScript, HTML5, CSS3, GraphQL, HTML, SQL, PHP, C++, JavaScript 6, CSS, Swift, TypeScript 4, TypeScript 3, TypeScript 5, TypeScript 2, Snowflake, Visual Basic for Applications (VBA), Python 3, C
Frameworks
.NET Core, ASP.NET MVC, Angular, Entity Framework Core, Bootstrap, Next.js, Express.js, JSON Web Tokens (JWT), Redux, Tailwind CSS, gRPC, Laravel, SwiftUI, ASP.NET, .NET, Selenium, React Native
Paradigms
Microservices Architecture, Database Design, Clean Architecture, Azure DevOps, Dependency Injection, CQRS, Test Automation, Role-based Access Control (RBAC), Serverless Architecture, Unit Testing, Web Performance Optimization (WPO), Asynchronous Programming, API Architecture, Design Patterns, Scalable Application, DevOps, Automation, Agile, UX Design, Testing, Refactoring, UI Design, Responsive Web Design (RWD), REST, Agile Software Development
Storage
Database Architecture, Redis, PostgreSQL, MySQL, MongoDB, Elasticsearch, Azure Cosmos DB, Azure Active Directory, Azure SQL, Amazon S3 (AWS S3), Database Modeling, WP Engine
Platforms
Azure, Docker, Kubernetes, AWS IoT, Google Cloud Platform (GCP), Linux, WordPress, WooCommerce, AWS Lambda, Amazon EC2, Windows Server, Amazon Web Services (AWS), Blockchain, AWS IoT Core, Hostinger, Shopify, Cloud Run, Firebase, Vercel, MacOS, WatchOS, iOS, Sanity Studio, HubSpot, Android, QlikView
Industry Expertise
Web Design
Other
FastAPI, SQL Server, RESTFul APIs, Web MVC, Full-stack Development, Web App Development, Custom CMS Development, .NET Core 8, Data Modeling, CI/CD Pipelines, Software Engineering, Load Balancers, Web Development, API Integration, RAG Architecture, Agentic RAG Systems, Troubleshooting, DNS Management, Software Architecture, SaaS, Architecture, Backups, GitHub Actions, Identity Server, Middleware, Domain-driven Design (DDD), SOLID Principles, WebSockets, OpenID Connect (OIDC), Web Server Development, Large Language Models (LLMs), AI Model Training, Debugging, Machine Learning, Machine Learning Operations (MLOps), Natural Language Processing (NLP), Artificial Intelligence (AI), Open-source LLMs, Generative Artificial Intelligence (GenAI), APIs, Agentic AI, LangChain, Chrome Extensions, Cloudflare, Networking, Algorithms, Application State Management, Encryption, Web Security, OAuth, System Architecture, Distributed Systems, Terraform Cloud, Enterprise Software, B2B Software, Application Security, Authentication, Authorization, Cloud Engineering, AI Integration, Retrieval-augmented Generation (RAG), SAP, VPS, eCommerce, Full-stack, English, Elementor, Operations Management, HTTP, Cloud Architecture, Infrastructure as Code (IaC), Supabase, Scalability, Amazon RDS, Digital Transformation, User Interface (UI), User Experience (UX), Technical Leadership, Background Jobs, Desktop App, Pattern Recognition, Integrations, NetSuite, Website Integration, Data Mapping, Site Reliability Engineering (SRE), Capacity Planning, Incident Response, Monitoring, Observability, Code Review, Containerization, Infrastructure, Automated Deployment Scripts, Reliability Engineering, Containers, Migration, Operating Systems, TCP/IP, Back-end, Performance Optimization, Network Engineering, Network Protocols, Optimization, Runtime Debugging, Source Code Parsing, Compilers, Memory Management, Prompt Engineering, Multi-agent Systems, Shopify Design, Shopify Customizations, WordPress Themes, WordPress Plugins, Figma to WordPress, Deployment, Cloud, 3D Games, Data Science, Data Reporting, Data Analytics, Canonical Models, Reinforcement Learning from Human Feedback (RLHF), Statistical Analysis, Feature Engineering, Customer Relationship Management (CRM), Enterprise Resource Planning (ERP), Integration, Gemini, Federated Learning, Implementation, Methodology, Research, Data Security, Computer Vision, Lead Generation, Compliance, B2B Lead Generation, Airtable, Inventory Management, HubSpot CRM, Coding, PayPal, Payment Gateways, LLM Integration, Intuit QuickBooks, Excel Add-ins, Development
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