Kamrul Hasan Rijon
Creative Frontend Developer , Senior Angular Developer , Software
Engineer
Phone: +8801722289239
Email: rijon.cse@gmail.com
Address: Mohammadpur, Dhaka-1205 , Bangladesh
Professional Summary
Results-oriented Front-End Developer with 10+ years of experience in building scalable, user-centric web applications. Strong expertise in Angular, TypeScript, HTML5, CSS3, Bootstrap, Tailwind and SCSS, delivering high-performance and visually refined UI solutions. Experienced in leading teams, managing projects end-to-end, and collaborating closely with backend developers. Proven ability to create responsive, accessible, and maintainable interfaces that enhance user engagement. Hands-on experience with Google Maps API for real-time tracking, geo-fencing, and location-based data visualization systems. Proficient in Git-based version control and Agile project workflows (JIRA), with a continuous focus on learning and innovation.
HTML5
CSS3
SCSS
Bootstrap
JavaScript
WordPress
Angular
.NET Core
RDLC
MS SQL
10
Years of
Experience
10
Happy
Clients
50
Complete
Projects
Skills
HTML
95%
CSS
95%
SCSS
80%
Bootstrap
90%
Tailwind CSS
70%
Wordpress
80%
Javascript
90%
Angular
95%
React
60%
ASP.NET Core
50%
SQL Server
40%
RDLC
70%
Professional Experience
Senior Frontend Developer
Solution World Limited | Sep/2021 - Present (4Y 6M) | DOHS Mohakhali, Dhaka-1206
- Led front-end development as a Senior Angular Developer (4+ years), building scalable, high-performance, and user-centric web applications.
- Engineered and maintained robust applications using Angular, Angular Material, PrimeNG, TypeScript, JavaScript (ES6+), RxJS, NgRx, and RESTful API integrations.
- Developed and integrated full-featured web application by implementing RESTful API integrations using pure Vanilla JavaScript (ES6+), ensuring efficient data handling, asynchronous operations, and optimized performance.
- Boosted application performance by up to 50% through advanced optimization techniques, including lazy loading, efficient state management, and code refactoring.
- Designed and delivered complex, responsive, and accessible UI/UX components using HTML5, CSS3, SCSS (Sass), Bootstrap, and Tailwind CSS.
- Contributed to backend workflows by handling CRUD operations, bug resolution, API integration, and RDLC report generation using ASP.NET Core, SQL Server, LINQ, and repository pattern.
- Enhanced development productivity by leveraging AI tools such as GitHub Copilot and Cursor AI for faster coding, smarter debugging, and improved code quality.
- Developed advanced map-based features using Google Maps API, including real-time location tracking, historical route visualization, geo-fencing.
Frontend Developer & Trainer
Codeware Ltd. | Jan/2018 - Aug/2021 (3Y 8M) | Adabor, Mohammadpur, Dhaka-1207
- Led a 5-member front-end team to deliver 30+ responsive websites and 5 web applications using Figma to HTML, HTML, CSS, SCSS, Bootstrap, jQuery, and WordPress.
- Developed interactive, user-centric UI with HTML, CSS, SCSS, jQuery, and Bootstrap; also created basic components in AngularJS/ReactJS.
- Ensured code consistency and smooth delivery using Git workflows; handled WordPress integration and optimized front-end performance.
Frontend Developer
Optimal IT Ltd. | Feb/2016 - Dec/2017 (1Y 11M) | Humayun Road, Mohammadpur, Dhaka-1207
- Developed responsive PSD to HTML layouts using HTML, CSS, SCSS, Bootstrap, and WordPress, ensuring cross-browser compatibility and mobile-first design.
- Built interactive UI features using jQuery and optimized performance through CSS/JS minification and image compression for faster load times.
- Customized WordPress themes and plugins, managed deployment on hosting servers, and converted Figma/Photoshop designs into pixel-perfect web pages.
Notable Projects & Contribution
- Developed a real-time agent monitoring system using Google Maps API, enabling live location tracking and visualization of agents during duty hours..
- Implemented a face detection-based attendance system integrated with a mobile application, where multiple faces are captured and displayed in the Angular dashboard, with admin control to approve or reject attendance records.
- Built a geo-fencing feature to detect when agents move خارج their assigned district or thana boundaries, triggering alerts and visual indicators on the map for unauthorized movement.
- Designed an interactive map interface to display agent location history along with detailed information, allowing supervisors to monitor movement patterns efficiently.
- Developed analytical reporting features to track agent activity, including time spent خارج assigned areas and return time, by consuming APIs and presenting structured data in Angular dashboards.
- Optimized front-end performance for handling real-time location updates and large datasets on map-based visualizations.
- Designed centralized operational dashboards using Angular for planning and monitoring workflows.
- Built interactive charts, tables, and status views for operational insights.
- Implemented role-based navigation and component-level access control.
- Optimized large data rendering using pagination and lazy-loaded modules.
- Built Angular dashboards for trainee performance tracking, attendance, and reporting.
- Implemented reusable table components with sorting, filtering, and pagination.
- Developed reactive forms for training data entry and evaluation workflows.
- Ensured responsive UI and cross-device compatibility.
- Implemented voter data management features, including bulk data upload from Excel, booth management, and structured data processing.
- Built advanced voter search functionality with filtering, booth-wise lookup, and center identification for efficient data retrieval.
- Designed voter slip generation and integrated SMS functionality to send candidate promotional messages to voters.
- Developed Angular-based case management UI for investigation tracking and evidence handling.
- Implemented advanced filters, search, and status indicators for faster case navigation.
- Integrated APIs for real-time case updates and cross-module data consistency.
- Focused on UX clarity for complex investigative workflows.
- Live URL: http://cidms.police.gov.bd
- Designed and developed responsive Angular dashboards for recruitment workflows, candidate listing, and status tracking.
- Implemented reactive forms with complex validation for application submission and screening processes.
- Integrated REST APIs for real-time candidate data updates and ensured role-based UI access.
- Optimized UI performance using lazy loading and reusable components.
- Built dynamic Angular components to manage automated inspection workflows and inspection status visualization.
- Implemented real-time data rendering with API polling and conditional UI updates.
- Developed filterable and paginated data grids for large inspection datasets.
- Ensured mobile-friendly UI using responsive layouts and reusable CSS utilities.
- Developed Angular modules for examination dashboards, candidate evaluation, and result visualization.
- Implemented form-driven exam management with validation, conditional rendering, and secure UI flows.
- Integrated REST APIs for exam data, scoring, and status tracking.
- Improved usability with modular components and consistent UI patterns.
- Developed interactive dashboards with charts and graphical data visualization using Angular, providing real-time insights for monitoring profiles and activities.
- Built criminal profile entry and process management modules, including form handling, validation, and seamless data flow across different stages.
- Implemented investigation workflow features with InvestigationHere’s your full set of projects arranged into **collapsible Bootstrap cards** exactly like your sample. Each project is neatly structured with bullet points and stack details:
- Developed data-driven Angular dashboards with dynamic tables, filters, and pagination.
- Implemented reactive forms with validation workflows and modular component architecture.
- Integrated REST APIs for academic data visualization and management.
- Focused on clean UI/UX using semantic HTML and scalable CSS structure.
- Built route search, seat selection, and booking UI with responsive design principles.
- Developed Angular components for reservation flow and client-side state management.
- Optimized API communication for faster search and booking responses.
- Enhanced UX with dynamic seat maps and real-time availability updates.
- Developed responsive product listing, filtering, cart, and checkout interfaces.
- Built Angular components for product cards, pagination, and API-driven data caching.
- Implemented smooth client-side updates for cart and checkout flows.
- Focused on performance optimization and reusable UI components.
- Developed appointment scheduling UI with calendar and timeslot selection.
- Implemented Angular modules for conflict detection and form validation.
- Integrated APIs for appointment booking, rescheduling, and status updates.
- Improved UX with clean, intuitive, and responsive UI components.
- Developed and delivered 30+ responsive websites for various clients across different domains.
- Designed and implemented responsive UI using HTML5, CSS3, Bootstrap, and jQuery, ensuring cross-browser compatibility.
- Converted Figma/PSD designs into pixel-perfect web pages with clean and maintainable code.
- Built interactive UI components and enhanced user experience with dynamic elements and smooth interactions.
- Optimized performance through CSS/JS minification, image optimization, and best frontend practices.