I develop secure, scalable, and high-performance web applications using modern backend technologies and cloud infrastructure — from database design to production deployment.
# provisioning cloud infrastructure const stack = { backend: "PHP", "Python", cloud: "AWS EC2 / S3 / SES", db: "MySQL", "Redis" }; function deploy(app) { build(app); test(app); return aws.ship(app); } > deploy(uwnsi) ✓ build passed ✓ tests passed ✓ shipped to production
I'm Pankaj Kumar, a software developer who builds the infrastructure, APIs and data layer behind reliable web products — then makes sure they hold up under real traffic.
Robust server-side logic in PHP and Python, built with maintainability and clean architecture in mind.
Provisioning and managing AWS environments — EC2, S3 and SES — for reliable, scalable delivery.
Designing REST APIs that are predictable, well-documented and easy for other teams to consume.
Schema design and query optimization across MySQL and Redis for data that stays fast at scale.
Profiling and tuning applications end-to-end, from slow queries to front-end load times.
Applying secure coding standards, sane defaults and least-privilege access across every layer.
Full-stack web applications built on solid, maintainable foundations in PHP and Python.
Clean, versioned APIs with clear documentation, built for real-world integrations.
Deploying and managing applications on AWS with repeatable, documented processes.
Setting up EC2, S3 and SES with security groups, IAM roles and monitoring in place.
Diagnosing bottlenecks in queries, caching and page load, then fixing them methodically.
Normalized, indexed schemas that stay fast and easy to reason about as they grow.
Python and shell scripts that remove repetitive manual work from a team's day.
A full storefront with catalog, checkout and order management.
Generates structured schema markup for pages using an LLM pipeline.
Employee records, attendance and document storage for small teams.
A campus-wide portal for reporting and claiming lost items.
Building and maintaining full-stack web applications, owning features from database schema through deployment.
Focused on API design, database optimization and integrating third-party services into production systems.
Self-directed study of AWS infrastructure — EC2, S3 and SES — alongside Linux server administration.
"Pankaj rebuilt our backend API and cut our average response time significantly. Communication was clear the entire way through."
"He set up our AWS infrastructure from scratch — EC2, S3 and SES — and documented everything so our team could maintain it."
"Reliable, detail-oriented and honest about timelines. Our employee management system has run without issues since launch."
Have a project in mind? Send a message and I'll get back to you.