root@portfolio:~$ ./init --user=RAJESH_KANNA
RAJESH KANNA
Full Stack Engineer / 2 Years Experience
❯ ~/profile $ whoami --verbose
2+
Years Exp
60%
Memory Reduced
35%
Product Value ↑
30+
UI Issues Resolved
// 01
TECH_STACK
languages
LANG
JavaJavaScript
TypeScriptPython
HTMLCSS
frameworks
FRAMEWORKS
Spring BootNode.js
ExpressReact
AngularBootstrap
RTK
databases
DATA
MySQLMongoDB
devops & cloud
CLOUD
FirebaseJenkins
KubernetesGitHub
api & integration
API
RESTMicroservices
IoT Integration
testing & tools
QA / TOOLS
Manual TestingJIRA
VS CodeSDLC/STLC
// 02
EXPERIENCE
TRAINEE DEVELOPER
JAN 2024 — NOV 2025
⬡ CALEIDO XENIA PRIVATE LIMITED · MADURAI, INDIA
- Resolved 30 UI issues in Angular within 1 month, contributing to a 10% increase in product value.
- Resolved critical Firebase issues, improving application stability, authentication performance, and real-time data synchronization.
- Conducted thorough testing across software, mobile, and IoT products, achieving a 35% increase in product value.
- Managed and optimized MySQL databases with efficient indexing and performance tuning for scalable applications.
- Optimized scheduler algorithms and reduced memory usage by 60% via REST API synchronization fixes.
- Collaborated with clients to gather requirements and deliver functional features through iterative implementation cycles.
INTERN TRAINEE
MAY 2023 — DEC 2023
⬡ CALEIDO XENIA PRIVATE LIMITED · MADURAI, INDIA
- Designed and executed test cases and scenarios, ensuring software functionality and performance.
- Identified, documented, and reported bugs using JIRA, collaborating with developers for timely fixes.
- Performed functional and regression testing to enhance software quality and user experience.
- Gained hands-on experience with SDLC & STLC methodologies, improving defect detection efficiency.
// 03
PROJECTS
◈ ENTERPRISE APP
ANGULAR UI OVERHAUL
Resolved 30+ critical UI defects within a month, rebuilt component logic and improved UX flow contributing to measurable product value gains.
Angular
TypeScript
Firebase
CSS
◈ BACKEND OPTIMIZATION
API SCHEDULER ENGINE
Optimized REST API synchronization and rewrote scheduler algorithms, achieving 60% memory footprint reduction and improved throughput.
Spring Boot
Java
MySQL
REST
◈ IOT PLATFORM
IOT PRODUCT SUITE
Led testing lifecycle for IoT hardware and software products, improving detection efficiency and product value by 35% through SDLC-aligned QA processes.
IoT Integration
Manual Testing
JIRA
Node.js
◈ DATABASE
DB PERFORMANCE TUNING
Architected indexing strategies and query optimizations on MySQL at scale, ensuring high availability and fast retrieval for production workloads.
MySQL
Spring Boot
Microservices
Java
◈ CLOUD / AUTH
FIREBASE AUTH SYSTEM
Diagnosed and resolved critical Firebase authentication and real-time sync failures, stabilizing production apps and eliminating data loss incidents.
Firebase
JavaScript
Angular
Cloud
◈ FULL STACK
MCA CAPSTONE PROJECT
Designed and built a full-stack web application during MCA, applying CGPA 8.3 academic foundations in system design, DSA, and modern web technologies.
React
Node.js
MongoDB
Express
// 04
CERTIFICATIONS
2022–2023
Java Full Stack Development
QSpiders, Chennai
2026
Cloud Technical Series
Google
2025
Postman API Fundamentals
Postman
2024
Kubernetes Bootcamp
Thinkcloudly
// 05
CONTACT
Email
rajeshkannanb2@gmail.com
Phone
+91 7092368630
Location
Madurai – 625 007, Tamil Nadu, India
LinkedIn
linkedin.com/in/rajeshkannanb
Education
MCA · Erode Sengunthar Engg College · CGPA 8.3
Languages
Tamil (Native) · English (Fluent)
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