Animesh Kar

Intermediate Java Software Developer                                                              
NorthStar Utilities Solutions                                                                                   
#Projects - NS-Client Swing & Biller Web Application: Biller7(CIS)
#Technologies: Maven, WildFly 24+, MS SQL, Docker, Angular 18, Confluence(support documentation).
• Enhanced customer engagement guaranteeing seamless functionality and meeting all acceptance criteria by developing reusable UI web components in Angular for Biller7, incorporating steppers, filtering & sorting data, complex forms, and pagination.
• Optimized system performance and reliability through API services with relevant mock data to simulate real-world scenarios, improving accessibility compliance (A11Y), reducing browser slowdowns, and minimizing unnecessary API calls while ensuring robust end-to-end testing with Cypress.
• Integrated role-based JWT authorization for secure API end-point access using HttpInterceptor and route(Auth) guards; automated security checks for vulnerabilities to ensure codebase reliability and security compliance using npm audit in Angular.
• Elevated team productivity & collaboration leading to improved code quality by actively participating in MOB programming, defining Story (EPIC) points with functional requirements, & contributing to hackathons with recognition as a BI analytics hackathon winner.
 

Senior Software Engineer (Full-Stack)                                                                                    
Impel IT Solutions                                                                                                                
#Projects - Financial Invoice Management & Processing Web Applications: Factoring, BudgetView, Wezp
#Technologies: Groovy on Grails, Spring MVC, AWS s3, MySQL, JDBC, Cordova, Symfony, Abby API(XML), 3rd Party API, RabbitMQ.
• Optimized cost & led SaaS-based multi-tenant projects used by over 2,000 merchants resulting in improved system performance, reliability, and consistency in versioning by addressing legacy code bottlenecks through algorithm implementation, query optimization, code refactoring, multithreading(concurrency), system design, test automation, data modelling, profiling & release strategies.
• Enhanced application security, reinforcing controlled access with administrative oversight and strengthening data protection by employing role-based authorization, preventing CSRF/XSS vulnerabilities, and securing inter-application communication using JWT.
• Automated European bank data retrieval securing sign-in and reducing manual file processing from 1-2 hours to 2-5 seconds, improving data accuracy and transaction efficiency by integrating Tink & GoCardless APIs with OAuth2.0.
• Developed an automated invoice management system by extracting key details from ABBY API (OCR) response strings and enabling seamless uploads/downloads using AWS S3, eliminating server dependency and ensuring reliable storage.
• Increased user engagement by 30% beyond the web platform and confirmed smoother functionality on multiple invoice processing by building and deploying the cross-platform Budgetview app using Cordova and Angular for both Android and iOS.
• Facilitated client-developer communication for a Dutch survey project and established coding standards and guidelines, upholding successful project delivery & improving code quality & team efficiency, by requirement analysis, reviewing, and mentoring 2 junior developers.

Graduate Research Student                                                                                                          
The CyberLab, USASK                                                                                                                
#Research Projects - Web Server Fingerprinting, Android Privilege Escalation & Prevention
Technologies: Python, Machine Learning, Java, Android, Web Servers: Apache, Nginx, IIS.
• Launched a new attack method, exposing the vulnerability across all Android browser versions under toast overlay by enabling permission-less apps to access sensitive data via mobile browsers as a proxy.
• Enhanced Android security and improved user protection to accurately distinguish between legitimate and malicious intents of toast and window overlay attacks by implementing static detection.
• Achieved highly accurate web server identification through a novel fingerprinting method, eliminating the need for prior server disclosure or mitigation knowledge using HTTP request fuzzing and Machine Learning.
• Identified vulnerable Inter-Process Communication (IPC) patterns in decompiled APKs, analyzed exploit potential in protected app components, and implemented remedies to mitigate intent-chaining attacks in Android.

Software Engineer (Back-End) 
Bit Makers Ltd
#Projects - Bangladeshi Wedding Portal: BiyeBari
#Technologies: Spring Boot, Spring Data JPA, RESTful API, Elasticsearch, JUnit, MySQL.
• Improved data retrieval efficiency and reduced query execution time by 40% by optimizing the database architecture, resolving N+1 query patterns by JOIN FETCH, and implementing lazy fetching strategies.
• Expanded system capabilities, enabling seamless web and mobile integrations and increasing service interoperability by designing and enhancing RESTful APIs.
• Transformed search functionality in reduced query response times and improved search accuracy, leading to a 30% increase in user engagement by leveraging Elasticsearch.
• Streamlined development workflows, minimizing misalignment and accelerating project delivery by translating complex user requirements into comprehensive design documents.

Junior Solution Delivery Engineer
Systems Solutions & Development Technologies 

#Projects - VoIP Application: KringKring (mobile application)
#Technologies: Android, Java, WebView, Session Initiation Protocol(SIP).
• Developed a VoIP Android application (web-view), ensuring stable and efficient communication across devices by employing Network Programming with TCP and UDP.
• Enabled real-time communication through call and instant messaging features, increasing system reliability and usability using Session Initiation Protocol (SIP).
• Reduced connection failures by diagnosing and resolving packet transmission issues by monitoring call traces on the server side using Wireshark.
• Improved overall user experience, focusing on Media Players: Audio-group & Audio-manager functionalities by using the JavaScript interface and executing client-side database operations.

Master's in Computer Science ( Cybersecurity), USASK, Canada