Rayhanul Islam Rumel

- Built Lead Management end-to-end for customer requests and follow-up - Developed Follow-Up feature with date/time picker and push notifications - Implemented role-based Vehicle Discount system - Created Iframe Generator settings UI - Improved login/registration with validation and EN/DE i18n - Migrated broken Nuxt 2/Vuetify 2 UI to Nuxt 4/Vuetify 4 - Fixed critical frontend bugs and performance issues

- Built ticketing system, multilingual FAQ, and 26+ language support. - Revamped settings, filters, CV upload, and security. - Developed AI interview, assessment, summary tools, and chat assistant. - Automated recruiter workflows, branding, and content editing. - Delivered UI redesign, responsiveness, and reliability improvements. - Optimized codebase, added API fetch automation, and wrote E2E tests.

- Responsible for managing and analyzing publications and funds-related data, visualizing the findings, and creating interacting dashboards and reports. Technologies: MS Excel, Tableau, Python, MS PowerPoint, LaTex. - Responsible for developing an interactive mind-mapping tool for CISPA Projects and Collaborations. Technologies: MS Excel. - Developing websites and web applications. Technologies: React, Node, WordPress, Jekyll Theme. - Maintaining CISPA Publications Database. Technologies: SQL, WordPress.

- Completed Data Cleaning and Preprocessing projects using SQL, Python, and MS Excel - Conducted EDA on marketing datasets - Developed a web application, Spam Detection, featuring a Random Forest Classifier trained on Spam-Ham Text. Technologies: Flask and HTML, CSS, and JavaScript. - Completed a data science project using Bank Marketing (Campaign) dataset. Data Preprocessing, EDA, Machine Learning (Logistic Regression, Random Forest, SVC, K-nearest neighbor, Decision Tree, Gradient Boosting, Naive Bayes)

- Conducted and analyzed user experience survey reports to complete website design. Technologies: Google Forms, Spreadsheet, Tableau, Axure Prototyping Tool. - Developed the official website of HCI. Technologies: HTML, CSS, JQuery, JavaScript, WordPress.

- Taught courses like OOP, Databases and SQL, Data Management, and SQA and arranged workshops and seminars.

- Analyzed and visualized monthly customer data, and prepared and presented reports to the US team. Technologies: Excel, SQL, Powerpoint. - Resolved user-submitted issues, attended user calls, and provided online support. - Prepared and maintained online user guides and technical documents. Technologies: HTML, CSS, JavaScript, WordPress, LaTex.

- Provided client-end support, troubleshot network and server issues, and maintained, analyzed, and prepared reports on the IT budget. Technologies: Excel, Powerpoint.

- Implemented and kept track of office policies, creating new ones as required. - Recorded, analyzed, and tracked budget and expenses in three-time frames: Monthly, Half-yearly, and Yearly. Technologies: MS Excel. - Generated reports and visualizations of the analysis, including forecasting future budgets. Technologies: MS Excel, MS PowerPoint.

- Developed, managed, tested, and documented web-based applications and websites. Technologies: HTML, CSS, JavaScript, PHP, MySQL, WordPress, and Bugzilla.

Grade: 2.0 out of 4.00 (German Grading System) Focus: Data Science, Statistics, Machine Learning, Mathematics, Computer Science

Grade: 3.46 out of 4.00 (American Grading System) Focus: Software Engineering, Computer Science, Mathematics