About Hafiz Usman
English
Native or bilingual
Experience
- Seller LogFull Stack DeveloperE-COMMERCEOctober 2025 - January 2026 (3 months)Ipswich, United KingdomAs a Fullstack Developer at Seller Log, I bring expertise in both frontend and backend development to create complete solutions. Through my versatile skill set, I consistently deliver robust web applications that fulfill client needs and drive business growth.
- Wrote modular scripts utilizing ES6 Modules (import/export) in JavaScript to create a clear architectural structure for large projects.
- Configured monitoring, logging, and alerting for production API environments.
- Managed complex asynchronous flows using TypeScript Promises and Async/Await with explicit return types for reliability.
- Wrote unit tests for React components using React Testing Library to verify component behavior and user interaction accuracy.
- Provided mentorship and knowledge sharing sessions to educate team members on best practices and advanced techniques in GraphQL development, fostering a culture of continuous learning and improvement within the company.
- Created modular Node.js service layers and controllers for maintainable and testable backend architecture.
- Provided technical support and troubleshooting for Git-related issues.
- Monitored database health and memory usage using MongoDB Compass to identify and resolve bottleneck queries.
- Leveraged GraphQL Federation to combine multiple subgraphs into a unified gateway, simplifying frontend integration for microservices.
- Secured application traffic using AWS WAF and Azure Front Door, mitigating DDoS attacks and managing SSL/TLS certificates centrally.
- Designed multi-repo pipelines to coordinate synchronized releases for interdependent microservices within a complex ecosystem.
- Configured custom headers and security policies within next.config.js to protect the production environment from common web vulnerabilities.
- Documented Entity-Relationship Diagrams (ERD) to provide a clear architectural map for development teams and stakeholders.
- Beyond CompetitionsFull Stack DeveloperDIGITAL AND ITAugust 2024 - January 2025 (5 months)Manchester, United KingdomIn my capacity as a Fullstack Developer at Beyond Competition, I took part in developing end-to-end solutions, proficiently managing both frontend and backend development tasks. Leveraging my diverse skill set, I ensure the delivery of resilient web applications that meet client requirements and support business advancement.
- Optimized API performance with query batching, caching, and async patterns.
- Structured React projects using feature-based folders and lazy loading with Suspense to optimize initial bundle sizes.
- Conducted Code Reviews, performance audits, and quality assurance testing to maintain code quality, security, and compliance standards for Shopify projects.
- Collaborated closely with frontend developers, designers, and other stakeholders to understand project requirements and deliver solutions that meet business needs.
- Implemented GraphQL subscriptions to enable real-time data updates and notifications, enhancing the responsiveness and interactivity of web applications.
- Applied JavaScript Regular Expressions to perform complex string parsing and form validation for improved data integrity.
- Refactored legacy codebases to TypeScript, resolving implicit any issues and establishing a strongly typed architecture.
- Skilled in designing RESTful APIs and implementing real-time functionality with Web Sockets using node.js.
- Automated cron jobs and scheduled tasks using Node.js for nightly batch operations and data synchronization.
- Implemented automated rollback mechanisms for failed deployments in CI/CD pipelines.
- Utilized Git for maintaining documentation and versioning of project artifacts.
- Architected unsupervised learning clusters to identify anomalies and hidden patterns within massive multidimensional data streams.
- Integrated Mongoose virtuals and populated references to efficiently manage relational data patterns within a NoSQL structure.
- Big Photo HuntFull Stack DeveloperDIGITAL AND ITDecember 2023 - September 2024 (9 months)Birmingham, United KingdomAs a Fullstack Developer at Big Photo Hunt, I excel in creating comprehensive solutions that encompass both frontend and backend development. Through my diverse skill set, I consistently deliver robust web applications that address client needs and contribute to business growth.
- Integrated API gateways and microservices architecture for modular development.
- Implemented real-time chat and notifications with WebSocket and Socket.io integration in Node.js.
- Set up environment-specific configurations for seamless deployment using Docker Compose.
- Configured role-based access control (RBAC) and encryption at rest to secure sensitive MongoDB document stores.
- Implemented Rate Limiting and Throttling mechanisms to protect public APIs from overuse and Denial of Service attacks.
- Configured CloudWatch and Azure Monitor dashboards to provide real-time observability and automated alerting for system health metrics.
- Managed secret masking and secure variable injection within CI/CD Pipelines to protect API keys and database credentials.
- Leveraged React Server Components to minimize client-side JavaScript bundles, resulting in faster hydration and improved interactivity.
- Configured user permissions and access control to secure sensitive information and prevent unauthorized data modification.
- Developed Gutenberg blocks using React to provide content editors with a modern and intuitive drag-and-drop editing experience.
- Managed application state using JavaScript Closures and Local Storage to persist user preferences across browser sessions.
- Leveraged TypeScript enums and literal types to define fixed sets of constants, improving code readability and IDE autocomplete.
- Built accessible interfaces by following WAI-ARIA standards within React, ensuring screen reader compatibility for interactive elements.
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Education
- U niversity of South Asia U niversity of South Asia
- Bachelor's I n2014Bachelor's I n