Tehaan Perera

Full Stack Developer crafting fast, scalable, and user-centric web applications. With a strong foundation in React, Node.js, and modern frameworks like Next.js, I build robust solutions that prioritize performance, intuitive UX, and clean architecture. Whether it's real-time dashboards or complex form-driven platforms, I focus on solving real-world problems with practical, elegant code.

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My Projects

A selection of my recent work and personal projects.

Alchemist

A research-focused RAG application enabling natural language querying of academic PDFs using LLMs and vector search for grounded, citation-based answers.

Next.js

PostgreSQL

Supabase

Pinecone

LangChain

OpenAI

Tanstack Query

Code Demo

Fosterli

A foster care CRM with dynamic assessment flows, role-based access, and collaboration between applicants, assessors, and managers.

Next.js

PostgreSQL

Prisma

Amazon S3

Resend

JWT

React-Hook-Form

Zod

Tanstack Query

Docker

Docker Compose

Demo

Professional Work

The Legal Database

A legal research platform for Sri Lanka, enabling fast access to laws, linked judgments, and automated cross-references.

Next.js

React.js

NestJS

Mongo DB

Mongoose

Amazon S3

LaTeX

Docker

Docker Compose

Demo

View More on GitHub

Work Experience

My professional journey and the roles that have shaped my career.

Software Engineer

Freelance

Fosterli Ltd.

Remote (UK)

Nov 2023 - Present

Developed a full-stack web application to automate foster care processes, enhancing efficiency and user experience.
Designed a dynamic multi-step form system for improved data collection.
Implemented field-level assignments, enabling assessors to assign specific form fields to foster carers for completion and submission.
Integrated real-time WebSocket notifications for enhanced user engagement.

React

Next.js

Node.js

Express.js

MongoDB

Tailwind CSS

Docker

Software Engineer

Contract

Amplify Solutions

Remote

Mar 2024 - Jun 2025

Built a sales management system with fraud detection using Node.js, Next.js, and Zustand.
Developed a legal research platform with optimized querying via MongoDB Atlas Search.
Managed AWS infrastructure and automated CI/CD pipelines with GitHub Actions and Docker Compose.

React

Next.js

NestJS

Node.js

AWS

Docker

PostgreSQL

Software Engineering Intern

Full-time

Calcey Technologies LLC

Colombo, Sri Lanka

Jun 2022 - Dec 2022

Collaborated with Agile teams to design and develop applets.
Participated in Agile ceremonies to ensure seamless workflows.
Conducted developer testing to deliver high-quality code.

React

Angular

Node.js

SQLite

Tailwind CSS

Vercel

Credentials

My educational background, certifications, and achievements.

Education

BSc. (Hons.) in Computer Science

2023 - Present

University of Staffordshire (APIIT, Sri Lanka)

GPA: 3.7

Focused on software engineering, algorithms, and data structures. Completed senior capstone project on machine learning applications.

GCE Advanced Level

2022

Ananda College, Colombo

GCE Ordinary Level

2019

Ananda College, Colombo

Certifications

AWS Cloud Practitioner Essentials (awarded by Coursera)

2024

Amazon Web Services

View Credential

Meta Front-End Developer

2024

My Skills

Technologies and tools I work with on a regular basis.

Frontend

HTML5

CSS3

JavaScript

TypeScript

React.js

Next.js

Tailwind CSS

Zustand

React Query

React Hook Form

Backend

Node.js

NestJS

Express

GraphQL

REST API

AWS Lambda

Database

MongoDB

PostgreSQL

MySQL

Firebase

Prisma

Redis

DevOps & Tools

Git

GitHub

Docker

AWS

Vercel

CI/CD

Jest

Cypress

Get In Touch

Have a project in mind or want to discuss potential opportunities? Feel free to reach out!

Contact Information

Feel free to reach out through any of these channels.

[email protected]

Sri Lanka

in/tehaan-perera

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