About me
I'm Pathumi Ahinsa , a final-year Computer Science Undergraduate at University of Colombo School Of Computing. Passionate about AI, accessibility research, and full-stack development, I build solutions that bring technology and human needs closer together.
Internship Experiences
Back-end Engineer Intern
Emplity
Contributing to the development and maintenance of a mental healthcare platform by building secure backend systems and AI-powered services that support therapist training and scenario-based practice.
Featured Projects
Genvoice Application: Backend System
Developed and maintained core backend services for a mental healthcare application using Django and PostgreSQL. Implemented secure JWT-based authentication and role-based access control, designed and optimized database schemas, built backend services for chat applications, and developed scenario management APIs to support therapist workflows and client interactions.
Genvoice Application: AI Server
Designed and maintained an AI-powered server using FastAPI to enable scenario-based therapist training sessions. Implemented zero-shot and few-shot prompt templates using Jinja for dynamic prompt construction, integrated large language models via OpenAI APIs and AWS Bedrock, managed prompt evaluation strategies, and implemented Text-to-Speech (TTS) integration using OpenAI for conversational responses.
Research Intern
Mixed Reality Lab, UCSC
Engaged in applied research on sign language translation with a focus on inclusive AI systems, combining model development, academic research, and real-world exposure through literature studies, evaluations, and field visits.
Featured Projects
SignSinhala Web Application
Developed an end-to-end English-to-Sinhala Sign Language translation web application using an LSTM-based sequence-to-sequence model. Applied NLP preprocessing techniques with NLTK, generated sign language videos by concatenating sign clips using OpenCV, and produced skeleton-based visual outputs alongside sign videos. Evaluated translation quality using BLEU scores and conducted manual human evaluations to assess sign correctness and naturalness. The system formed the basis for a conference paper and an extended abstract publication.
Education
Bachelor of Science Honours in Computer Science
2022 - PresentUniversity of Colombo School of Computing (UCSC) - Sri Lanka
Final Year Undergraduate | Specializing in Full-Stack Development, Artificial Intelligence and Research
GPA : 3.62/4.00
G.C.E. Advanced Level Examination
2017 - 2020H/Tangalle Balika Vidyalaya
Physical Science Stream [Combined Mathematics - A Physics - B Chemistry - A]
G.C.E. Ordinary Level Examination
2012 -2017H/Tangalle Balika Vidyalaya
Completed with excellent results (9A's) across Mathematics, Science, English and other core subjects(District Rank :6).