Karnak Roy Chowdhury
Kolkata
Summary
Senior Software Engineer with 6.7+ years of experience and an Executive PG Diploma from IIIT Bangalore. Expert in architecting Enterprise WordPress solutions, specializing in Custom Theme & Plugin development, Core PHP, MVC architecture, and building scalable REST APIs. Proven track record of delivering 300+ high-impact projects, scaling complex WooCommerce ecosystems, and actively utilizing Generative AI-driven workflows to build highly secure, optimized, and smart web applications with significantly enhanced code quality and delivery speed.
Overview
7
7
years of professional experience
1
1
GEN AI Certification
Work History
Senior Software Engineer
Elvira Infotech Private Limited
08.2023 - Current
Spearheaded the end-to-end development of high-traffic enterprise WordPress ecosystems. Acted as the primary technical lead, specializing in Custom Theme & Plugin architecture, Core PHP (MVC), and robust REST API integrations.
Key Achievements & Responsibilities:
- Custom Theme & Plugin Architecture: Engineered 100+ complex, high-performance custom WordPress themes and built bespoke plugins from scratch, eliminating reliance on bloated third-party solutions.
- Enterprise WooCommerce Customization: Specialized in end-to-end WooCommerce custom development, architecting complex payment gateways from scratch, and extensively utilizing WooCommerce REST APIs for seamless synchronization with external platforms.
- Robust Backend & MVC Architecture: Developed secure, scalable server-side logic utilizing Core PHP and MVC architecture. Optimized complex SQL queries and managed enterprise-grade databases to ensure 99.9% application uptime.
- Advanced API Ecosystems: Architected and integrated scalable REST APIs for custom data handling, seamlessly connecting web applications with custom enterprise tools, ERP systems, and external CRMs.
- Modern Headless Solutions: Pioneered the integration of WordPress with React.js to create decoupled (Headless) e-commerce experiences, drastically improving page load speeds by over 40%.
- Advanced Content Workflows: Showcased expert command over ACF (Advanced Custom Fields) and custom Gutenberg Block development to build highly tailored, client-specific editorial workflows without utilizing heavy page builders.
- AI-Driven DevOps: Managed Linux server environments and CI/CD pipelines via Git, actively leveraging Generative AI tools to accelerate code generation, debugging, and overall development speed by 30%.
Software Engineer
Brainium Information Technologies
06.2022 - 07.2023
- Custom Theme Development: Engineered 50+ custom WordPress themes from scratch using PHP, HTML5, CSS3, and JavaScript, ensuring pixel-perfect conversion from PSD/Figma to functional sites.
- Performance Tuning: Optimized website loading speeds by implementing advanced caching strategies, image compression, and code minification, resulting in an average 35% improvement in Core Web Vitals.
- Plugin Customization: Developed and modified custom WordPress plugins to extend functionality for specific client requirements, reducing reliance on third-party bloated plugins.
- Client Collaboration: Worked closely with international clients to gather requirements, provide technical consultations, and deliver projects within strict timelines.
- Cross-Browser Compatibility: Ensured seamless user experiences across all major browsers and mobile devices by following responsive design best practices.
Software Engineer
ThirdEssential IT Solutions Pvt. Ltd.
03.2022 - 06.2022
- Custom Theme Development: Engineered 50+ custom WordPress themes from scratch using PHP, HTML5, CSS3, and JavaScript, ensuring pixel-perfect conversion from PSD/Figma to functional sites.
- Performance Tuning: Optimized website loading speeds by implementing advanced caching strategies, image compression, and code minification, resulting in an average 35% improvement in Core Web Vitals.
- Plugin Customization: Developed and modified custom WordPress plugins to extend functionality for specific client requirements, reducing reliance on third-party bloated plugins.
- Client Collaboration: Worked closely with international clients to gather requirements, provide technical consultations, and deliver projects within strict timelines.
- Cross-Browser Compatibility: Ensured seamless user experiences across all major browsers and mobile devices by following responsive design best practices.
Software Engineer
Webskitters
08.2020 - 03.2022
- Custom Theme Development: Engineered 50+ custom WordPress themes from scratch using PHP, HTML5, CSS3, and JavaScript, ensuring pixel-perfect conversion from PSD/Figma to functional sites.
- Performance Tuning: Optimized website loading speeds by implementing advanced caching strategies, image compression, and code minification, resulting in an average 35% improvement in Core Web Vitals.
- Plugin Customization: Developed and modified custom WordPress plugins to extend functionality for specific client requirements, reducing reliance on third-party bloated plugins.
- Client Collaboration: Worked closely with international clients to gather requirements, provide technical consultations, and deliver projects within strict timelines.
- Cross-Browser Compatibility: Ensured seamless user experiences across all major browsers and mobile devices by following responsive design best practices.
WordPress Developer
Loyalie IT Solutions
02.2020 - 07.2020
- Web UI & Deployment
- Designed and implemented web pages UI from client-approved designs in Cloud Production Environments.
- WordPress & E-commerce
- Designed and developed WordPress E-commerce multilingual themes with a 99% success rate.
- SEO & Multimedia
- Implemented On-page SEO on websites.
- Created videos for social media content.
Full Stack Developer
Excellent Printech
08.2019 - 02.2020
- Web UI & Deployment
- Designed and implemented web pages UI from client-approved designs in Cloud Production Environments.
- WordPress & E-commerce
- Designed and developed WordPress E-commerce multilingual themes with a 99% success rate.
- SEO & Multimedia
- Implemented On-page SEO on websites.
- Created videos for social media content.
Education
Post Graduate Diploma - Software Development
IIIT Bangalore
Bengaluru, India12-2023
B.Tech. - Electronics & Communication
Maulana Abul Kalam Azad University of Technology
West Bengal08-2019
Diploma - Electronics & Telecommunication
West Bengal State Council of Technical & Vocational Education And Skill Development
08-2015
Skills
- Full Stack Web Application Development
- Custom Web Development
- WordPress Ecommerce Responsive Theme Development
- WordPress Plugin Development
- Web API Development using WordPress
- Database Management
- Web App Implementation with various API
- On Page SEO
- Coding & Troubleshooting
- Programming Languages: Java/J2EE platform, PHP, React, Nodejs
- Web Design: HTML5, CSS, JavaScript
- Database: My SQL
- Plugin Specialization(WordPress): WooCommerce, ACF Pro, ACF Frontend Pro, WPML, Google Translate, Social Media Login & Registrations, Gravity Form, PayPal, Stripe
- Web Designing Platforms & Frameworks: WIX, SQUARE SPACE, BOOTSTRAP, Elementor, Divi, Oxygen Builder
- Server Tools: Git
- Database design
- Agile methodologies expert
- Testing and debugging
- Project leadership
- Project documentation
- Client requirements
- Team reporting
- Troubleshooting
- Development lifecycles
- Workflows and queries
- Product development
- Project management
- New employee mentoring
- Web security
- Scope development
Certification
Generative AI Foundation
Generative AI Foundation | upGrad Successfully completed an intensive program focused on the practical application of Generative AI to drive engineering excellence and intelligent automation. The curriculum emphasized advanced Prompt Engineering and the strategic integration of modern AI tools into enterprise workflows.
- Advanced Prompt Engineering: Mastered the utilization of Microsoft’s AI ecosystem (including Microsoft Copilot and OpenAI services) to craft highly optimized prompts for automated code generation, complex debugging, and architectural problem-solving.
- AI-Driven Smartness: Leveraged cutting-edge Large Language Models (LLMs) to design intelligent, self-optimizing workflows, significantly reducing manual operational overhead and elevating overall system efficiency.
Languages
English
Hindi
Bengali
Timeline
Senior Software Engineer
Elvira Infotech Private Limited
08.2023 - Current
Software Engineer
Brainium Information Technologies
06.2022 - 07.2023
Software Engineer
ThirdEssential IT Solutions Pvt. Ltd.
03.2022 - 06.2022
Software Engineer
Webskitters
08.2020 - 03.2022
WordPress Developer
Loyalie IT Solutions
02.2020 - 07.2020
Full Stack Developer
Excellent Printech
08.2019 - 02.2020
B.Tech. - Electronics & Communication
Maulana Abul Kalam Azad University of Technology
Post Graduate Diploma - Software Development
IIIT Bangalore
Diploma - Electronics & Telecommunication
West Bengal State Council of Technical & Vocational Education And Skill Development
Additional Information
- Generative AI & Automation: Experimenting with LLM APIs (OpenAI, Claude) to build custom automation scripts and enhance development workflows.
- Open Source Contribution: Actively exploring and contributing to the WordPress core and React.js ecosystems to stay ahead of industry trends.
- Digital Audio & Music: Deeply interested in the technical nuances of Indian Classical Music and exploring digital audio processing.