Yashraj Basan
Resume

Hi, I'm Yashraj Basan.

I build web apps and AI tools that solve real business problems

What I can build for you

AI engineering

I build AI features that hold up in production: agentic workflows, RAG over your own data with vector databases, and careful prompt engineering. I write evals so you know it’s actually working, and I use AWS Bedrock while keeping an eye on cost, so the bill doesn’t surprise you

AWS

I set up and run backends on AWS, using EC2, Lambda, DynamoDB, Step Functions and S3, with CI/CD pipelines so shipping is boring (in a good way). I also look for ways to cut cost, so you only pay for what you use.

Web application development

Fast, responsive apps in React and Node.js that stay fast as your users and features grow. They’re built so the next feature doesn’t mean untangling the last one.

Browser extension development

Chrome, Edge and Firefox extensions that plug into your existing product and save your users clicks, built with security in mind

Technical interviews

Hiring for web or browser roles? I run technical interviews and give you a straight read on who’s ready to ship.

Experience

Senior Software Engineer, Materialplus

Architected and deployed a secure, production-grade RAG system powered by AWS Bedrock and S3, serving over 1,000 workers while enforcing Bedrock Guardrails for scalable, sensitive data filtering. I elevated system reliability by building an automated AI Agent Evaluation framework to benchmark accuracy and latency, alongside integrating Laminar for complete end-to-end LLM observability and tracing. Through strategic architectural leadership, I aligned high-impact technical solutions with business constraints to slash OpenSearch costs by ~10%, all while actively mentoring junior engineers through code reviews to cultivate a strong culture of growth and collaboration.

Software Engineer, KredX

I streamlined AWS S3 deployments, trimmed costs by 1% by removing low-code dependencies, and boosted web app performance by 75%. My skills shine in scalable React monorepo design and mentoring a team of three, fostering growth and collaboration.

Senior Software Engineer, CallHippo

As a Senior Node Engineer, I transformed our user experience with a cutting-edge calling system and achieved a 50-60% performance boost through frontend optimization. I streamlined REST APIs, integrated third-party services, and simplified documentation for effortless client interaction

JavaScript Consultant, QXF2

I fearlessly tackled Node.js, JavaScript, and React challenges, leading the creation of an efficient test automation framework with TestCafe. I empowered teammates with design pattern insights and improved team productivity through automated documentation and detailed technical guides

Certifications

AWS Certified AI Practitioner

Validates foundational knowledge of AI, machine learning and generative AI concepts, ethics and the AWS services used to build with them.

Selected Projects

DevTrackr: VS Code extension

JavaScript, Node.js, VS Code API

An open-source extension that documents your daily work and syncs with GitHub. It collects no data, so everything stays private.

Note It: browser extension

HTML, CSS, JavaScript, Chrome APIs

Save text from any website, share notes and export them as text files. Used by 150+ students and researchers, and it collects no data.

CheesePens: brand website

Gatsby, React, GitHub

A fast, low-cost website that builds customer trust and is simple for the team to run and extend.

About

Since school, I’ve had a passion for building websites, feeling like I’m wielding digital magic with each project. My journey began with Jon Duckett's Books on HTML, CSS, and JavaScript, sparking a curiosity that grew into years of hands on software development experience and a Computer Science degree. I’ve worked on a range of projects, from building MVPs to scalable web applications and browser extensions. Outside of coding, I love playing guitar, reading diverse genres, and continuously exploring new skills.

Feel free to reach out me if you need help with your project or just want to say hi!

Let's build your product

Have a project in mind, or want to say hi? Email me and I'll reply soon.