Muzamil Hussain
Backend Engineer
Experience
Backend Engineer
Freelance
- Architected secure, scalable backend for SEC-registered investment advisor platform handling sensitive financial data, implementing JWT authentication, role-based authorization, and encryption at rest/in transit to ensure regulatory compliance and data protection
- Designed and optimized PostgreSQL database schema for complex financial relationships with proper indexing, query optimization, and transactional integrity, while implementing MongoDB for flexible document storage, demonstrating expertise across both relational and NoSQL databases
- Developed RESTful APIs integrating multiple third-party financial data providers with retry logic, circuit breaker patterns, rate limiting, and comprehensive error handling, ensuring resilient operation under varying network conditions and high-volume requests
Trading Platform Enhancement
Freelance Project
- Enhanced fintech trading platform's user interface using Vue.js, implementing responsive components that improved platform usability and user engagement metrics by 25%
- Developed comprehensive internationalisation framework enabling multi-language support across 8 languages, significantly expanding platform's accessibility to international markets and diverse user base
Full-Stack Engineer
Tippgeber24 GmBH
- Built high-performance NestJS/GraphQL backend processing 500K+ daily queries with sub-100ms response times using Redis caching, ElasticSearch indexing, and optimized MongoDB aggregation pipelines, implementing idempotency and concurrency controls for reliable data processing
- Architected scalable RESTful APIs with JWT authentication, rate limiting, and comprehensive security measures including input validation, SQL injection prevention, and secure session management, ensuring robust protection of user data
- Designed and implemented queue-based architecture using Redis for asynchronous job processing, handling high-volume transactions with retry logic and dead-letter queues for production reliability
- Troubleshot and resolved production issues in real-time, implementing monitoring, alerting, and logging strategies that reduced incident response time by 40% and improved system observability
Robotics Engineer (Part-Time)
RoboTech LLC
- Delivered comprehensive robotics software platform that achieved company beta milestone and secured Dubai TV Shark Tank presentation opportunity, demonstrating commercial viability through end-to-end technical leadership
- Architected sophisticated control systems using C++/Qt5 for automated IoT stations, creating intuitive user interfaces and robust backend infrastructure for real-time robotic operations
- Integrated MAVLink communication protocols with Pixhawk flight controllers and servo motor systems, ensuring reliable device-to-device communication and precise operational control across distributed robotic components
- Developed scalable IoT monitoring solutions utilising MQTT protocols and Node.js backend services, enabling seamless remote control of ESP32-based devices with real-time responsiveness and high availability
Full-Stack Developer
Modelit
- Increased global user engagement by 27% for Fair Trade USA through full-stack development using Laravel, Vue.js, and Phrase-powered localisation, supporting certification workflows for international stakeholders
- Collaborated with cross-functional teams to maintain and enhance a comprehensive certification platform, implement scalable API solutions and dynamic Vue.js components that streamlined compliance processes for global users
- Architected robust Laravel backend services with integrated multi-language support, developing RESTful APIs and database schemas that improved system performance whilst maintaining data integrity across international deployments
- Delivered responsive Vue.js component libraries with seamless localisation integration, enabling the platform to expand into 12 new countries whilst maintaining consistent user experience across all regions
Front-End Developer
YourParade
- Developed and maintained enterprise-level Shopify+ e-commerce platform using React and TypeScript, implementing robust API integrations that processed £500K+ in monthly transactions with 99.9% reliability
- Built responsive React components with seamless Shopify API integration, optimising frontend performance that reduced page load times by 45% and improved conversion rates by 18%
- Contributed technical expertise in code reviews and team meetings, establishing TypeScript best practices and React component architecture standards that improved code quality and reduced technical debt by 30%
PHP Developer
Blinkedge Ltd.
- Developed custom WordPress and Laravel solutions for e-commerce clients, implementing secure payment gateway integrations and inventory management systems that supported £200K+ in annual sales
- Architected Laravel-based admin panels with Vue.js frontends for API management and data visualisation, creating efficient tools that reduced administrative overhead by 40% and improved operational efficiency
- Built secure RESTful APIs using Laravel and MySQL, implementing authentication, data validation, and error handling that ensured data integrity and privacy compliance across all client applications
- Delivered responsive, user-friendly interfaces using modern CSS frameworks and vanilla JavaScript, enhancing user experience and achieving 95% client satisfaction ratings
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Information Technology (4.5 years), Retail (1.5 years), Banking and Finance (1 year), Agriculture (1 year), Food and Beverage (1 year), and Manufacturing (0.5 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (4.5 years), Product Development (2 years), and Research and Development (0.5 years).
Summary
Backend Engineer with 7+ years designing and building high-performance, scalable Node.js/TypeScript applications. Expert in developing robust APIs, optimizing database performance (PostgreSQL, MySQL, MongoDB), and architecting systems that handle high-volume transactions with strong focus on security, reliability, and maintainability. Proven track record building backend services processing 500K+ daily queries with sub-100ms response times. Experience with FinTech applications, JWT authentication, queue-based architectures, and performance optimization under load. Strong OOP principles, design patterns, and collaborative remote work across distributed teams.
Skills
- Backend: Node.js, Express.js, Nestjs, Typescript, Restful Apis, Graphql, Websockets, Microservices
- Databases: Postgresql, Mysql, Mongodb, Redis, Elasticsearch, Query Optimization, Migrations, Data Modeling, Indexing
- Security & Apis: Jwt, Oauth 2.0, Rate Limiting, Input Validation, Idempotency, Concurrency Control, Api Security
- Architecture: Oop/solid, Design Patterns (Factory, Strategy, Repository), Clean Architecture, Event-driven Systems
- Performance: High-traffic Optimization, Caching (Redis), Load Balancing, Horizontal Scaling, Queue-based Processing (Kafka)
- Cloud & Devops: Aws (Ec2, S3, Lambda, Rds), Azure, Docker, Kubernetes, Ci/cd, Serverless, Infrastructure As Code
- Practices: Tdd, Unit/integration Testing, Git, Agile, Code Review, Production Troubleshooting, Remote Collaboration
- Frontend: React.js, Next.js, Vue.js, Typescript, Html5, Css3
- Additional: Python, Django, Flask, Laravel, Apache Kafka, Mqtt, Flutter
Languages
Education
The University of Law
MSc Cybersecurity Management · Cybersecurity Management · Birmingham, United Kingdom
GC University Faisalabad Layyah Campus
BS Information Technology · Information Technology · Layyah, Pakistan
Certifications & licenses
Cybersecurity Foundations
Ethical Hacker
Postman API Expert
Software Engineer Certificate
Profile
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