Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I’m Swapnil Halder, a full-stack web developer with 3+ years of experience delivering 110+ production websites for international clients. I specialize in WordPress, PHP, and MySQL, and I’ve helped clients boost performance by an average of 40% and implement robust e-commerce solutions. I’m a Fiverr Level 1 Seller with a 5-star rating, known for clean code, scalable architectures, and a focus on user-centric sites. When I’m not coding, I enjoy collaborating with clients to turn ideas into polished digital products. I work across the stack, follow Agile practices, conduct code reviews, and stay updated with the latest web technologies to ensure fast, secure, and accessible websites that grow with the business.…Hi, I’m Swapnil Halder, a full-stack web developer with 3+ years of experience delivering 110+ production websites for international clients. I specialize in WordPress, PHP, and MySQL, and I’ve helped clients boost performance by an average of 40% and implement robust e-commerce solutions. I’m a Fiverr Level 1 Seller with a 5-star rating, known for clean code, scalable architectures, and a focus on user-centric sites. When I’m not coding, I enjoy collaborating with clients to turn ideas into polished digital products. I work across the stack, follow Agile practices, conduct code reviews, and stay updated with the latest web technologies to ensure fast, secure, and accessible websites that grow with the business.

Swapnil Halder

Web Developer, Full Stack Developer, Back-End Developer, +2





Hi, I’m Swapnil Halder, a full-stack web developer with 3+ years of experience delivering 110+ production websites for international clients. I specialize in WordPress, PHP, and MySQL, and I’ve helped clients boost performance by an average of 40% and implement robust e-commerce solutions. I’m a Fiverr Level 1 Seller with a 5-star rating, known for clean code, scalable architectures, and a focus on user-centric sites. When I’m not coding, I enjoy collaborating with clients to turn ideas into polished digital products. I work across the stack, follow Agile practices, conduct code reviews, and stay updated with the latest web technologies to ensure fast, secure, and accessible websites that grow with the business.…Hi, I’m Swapnil Halder, a full-stack web developer with 3+ years of experience delivering 110+ production websites for international clients. I specialize in WordPress, PHP, and MySQL, and I’ve helped clients boost performance by an average of 40% and implement robust e-commerce solutions. I’m a Fiverr Level 1 Seller with a 5-star rating, known for clean code, scalable architectures, and a focus on user-centric sites. When I’m not coding, I enjoy collaborating with clients to turn ideas into polished digital products. I work across the stack, follow Agile practices, conduct code reviews, and stay updated with the latest web technologies to ensure fast, secure, and accessible websites that grow with the business.

Available to hire

Hi, I’m Swapnil Halder, a full-stack web developer with 3+ years of experience delivering 110+ production websites for international clients. I specialize in WordPress, PHP, and MySQL, and I’ve helped clients boost performance by an average of 40% and implement robust e-commerce solutions. I’m a Fiverr Level 1 Seller with a 5-star rating, known for clean code, scalable architectures, and a focus on user-centric sites.

When I’m not coding, I enjoy collaborating with clients to turn ideas into polished digital products. I work across the stack, follow Agile practices, conduct code reviews, and stay updated with the latest web technologies to ensure fast, secure, and accessible websites that grow with the business.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Web Developer at Savasaachi Marketing Agency

January 1, 2025 - Present

Developed and launched 50+ production websites using WordPress, WooCommerce, PHP, and MySQL, providing high-performance, scalable solutions across diverse industry verticals. Architected custom WooCommerce stores with tailored product pages, checkout enhancement, and multi-gateway payment integration (Stripe, PayPal). Built bespoke WordPress themes and plugins from scratch, cutting third-party dependencies and improving site speed by up to 40% via systematic performance auditing. Optimized MySQL queries and schema; conducted security audits (SSL, firewall, hardening) maintaining 99%+ uptime; integrated third-party APIs and automation tools for 10+ clients.

Freelance WordPress Developer – Level 1 Seller at Fiverr

January 1, 2024 - Present

Executed 60+ projects for clients across the US, UK, and Europe including WordPress builds, WooCommerce stores, and custom frontend development; maintained a 5-star rating; specialized in Elementor Pro, Core Web Vitals improvement, and complex custom functionality.

AI & Machine Learning Intern at YBI Foundation

May 1, 2024 - Present

Applied deep learning and machine learning concepts to real-world tasks, gaining hands-on experience with model training, evaluation, and iterative improvement; worked with CNNs and NLP pipelines, contributing to data preprocessing, feature engineering, and model deployment workflows in an agile remote environment.