Karthick K — Karthick Developer & Karthick Full Stack Developer

Full Stack Developer specializing in Python (Flask), React.js, and MongoDB

Official professional portfolio of Karthick K, showcasing software engineering experience, system architecture projects, and full-stack development skills.

Hi, I'm Karthick K (Karthick Developer)

I am an experienced Full Stack Developer with 3+ years of experience engineering secure, high-performance, and scalable software solutions. Expert in Python Flask microservices and modular React frontend development.

Contact: dev.karthick01@gmail.com | Phone: +91-9361670096 | Location: Tamil Nadu, India

Professional Experience

Senior Systems Engineer (Project Lead) — Aicare Global Private Limited

Nov 2024 – Present | Tamil Nadu, India

  • Spearheaded the design and deployment of an automated routing engine distributing 500+ daily licensing files, boosting administrative document throughput by 60%.
  • Led comprehensive system-level security compliance audits, successfully establishing 100% PII protection across all customer record directories.
  • Integrated multi-factor biometric authentication APIs and secure hardware endpoints, onboarding 50,000+ active user credentials with zero mismatches.
  • Modernized a secure customer portal serving 10,000+ active sessions with React.js and Flask, trimming manual review workloads by 95%.

Lead Systems Architect (Team Lead) — Aicare Global Private Limited

Dec 2023 – Sep 2024 | Tamil Nadu, India

  • Architected a secure, high-throughput web transaction engine that processed 100,000+ cryptographically encrypted payloads in a 24-hour window with zero record loss.
  • Designed real-time interactive dashboards rendering transaction aggregates with rendering latencies under 1 second.
  • Managed high-severity production server updates and resolved complex L3 outages to maintain 100% platform stability under peak concurrent loads.

Full Stack Developer — Aicare Global Private Limited

Dec 2022 – Nov 2023 | Tamil Nadu, India

  • Launched a multi-tenant SaaS ecosystem featuring strict customer-level data separation, providing isolated workflows for 8+ corporate clients.
  • Developed customized compliance reporting modules that increased business decision speeds for enterprise stakeholders by 30%.
  • Optimized MongoDB aggregation pipelines and caching profiles to speed up database performance by 70% with real-time data sync.

Technical Skills & Toolkit

  • Frontend: React.js, JavaScript (ES6+), TypeScript, HTML5, CSS3, Ant Design, Tailwind CSS
  • Backend: Python, Flask, REST API Design, Microservices Architecture
  • Databases: MongoDB (indexing, aggregation), PostgreSQL, Redis
  • DevOps & Tools: Docker, Git, Bitbucket, SourceTree, Swagger / OpenAPI, CI/CD
  • Integrations & Concepts: Third-Party API Integration, AI Model Integration, PDF Generation, JWT / RBAC, PII Auditing, Hardware APIs

Education

  • B.E. Electrical and Electronics Engineering: State Technological Engineering College (CGPA: 8.5 / 10.0)