Open to opportunities
Building
TalentAI 🤖
DinuwanJayasinghe
A software engineering undergraduate who bridges classroom concepts and real-world impact — from teaching IT in high school to engineering enterprise-grade systems at Sri Lanka's leading telecom provider.
9+
Years exp
6
Projects
3
Companies
200+
Users served
{
"name": "Dinuwan
Jayasinghe",
"role": "Software
Engineer",
"location": "Colombo,
Sri Lanka 🇱🇰",
"experience": 9, // years
"stack": {
"backend": ["Spring Boot", "Java"],
"frontend": ["React JS", "HTML/CSS"],
"db": ["MongoDB", "MySQL"],
"cloud": "Azure"
},
"openToWork": true,
"projects": 6, // including Final Year AI
project
"email": "dinuwan1211@gmail.com"
}
$
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Java Spring Boot
React JS
MongoDB
Microsoft Azure
MySQL
REST APIs
C# .NET
Oracle PL/SQL
Hibernate ORM
MVC Architecture
Agile / Scrum
Selenium WebDriver
Bitbucket
Postman
Java Spring Boot
React JS
MongoDB
Microsoft Azure
MySQL
REST APIs
C# .NET
Oracle PL/SQL
Hibernate ORM
MVC Architecture
Agile / Scrum
Selenium WebDriver
Bitbucket
Postman
LangChain / LangGraph
OpenAI API
RAG Architecture
FastAPI
Docker
About Me
Who I am
Bridging Code & Real-World Impact
I'm a results-driven Software Engineering undergraduate at the University of Vocational Technology, Sri Lanka, with a rare blend of technical depth and human-centered thinking.
From teaching IT in a high school classroom to engineering enterprise-grade systems at Sri Lanka Telecom PLC — Sri Lanka's #1 telecom provider — I thrive where complexity meets creativity.
Whether architecting scalable web applications, designing RESTful APIs, or troubleshooting network infrastructure, I'm driven by a genuine passion for building technology that not only works — but works exceptionally well.
Location
Colombo, Sri Lanka 🇱🇰
Status
Open
to work
Degree
BTech Software Tech
Phone
+94 766 661 951
IT Teacher
Taught IT at Mount Calvery High School & built the MCHS Management System in C#
+ .NET.
IT Technician
Built inventory systems and maintained network infrastructure at Ceylon Petroleum
Corporation.
Software Engineer
Engineering enterprise-grade systems at Sri Lanka Telecom PLC — the nation's
leading ISP and telecom.
0
Years Experience
0
Projects Delivered
0
Users Supported
0
Technologies
Technical Skills
My toolkit
☕
Java
90% proficiency
🟦
C#
80% proficiency
🌐
JavaScript
82% proficiency
🐘
PHP
70% proficiency
🐍
Python
60% proficiency
🧩
C++
65% proficiency
🔷
TypeScript
68% proficiency
⚛️
React JS
85% proficiency
🎨
HTML / CSS
88% proficiency
💨
Tailwind CSS
72% proficiency
🍃
Thymeleaf
75% proficiency
🤖
Selenium
68% proficiency
🚀
Spring Boot
88% proficiency
🔗
REST APIs
90% proficiency
🗂️
Hibernate ORM
78% proficiency
🐬
MySQL
85% proficiency
🍃
MongoDB
80% proficiency
🔶
Oracle PL/SQL
72% proficiency
🗄️
MS SQL Server
75% proficiency
☁️
Microsoft Azure
72% proficiency
🦊
Git / GitLab
85% proficiency
🪣
Bitbucket
78% proficiency
📮
Postman
82% proficiency
🦜
LangChain
72% proficiency
🕸️
LangGraph
68% proficiency
🤖
OpenAI API
75% proficiency
📚
RAG Architecture
70% proficiency
👁️
OpenCV / DeepFace
65% proficiency
🔐
JWT Auth
74% proficiency
⚡
FastAPI (Python)
70% proficiency
🟠
AWS
60% proficiency
🐳
Docker
65% proficiency
🧠
Vector DB (ChromaDB)
62% proficiency
🐘
PostgreSQL
68% proficiency
Career
Work experience
Sri Lanka Telecom PLC
Software Engineer — Intern · Colombo
Current
Apr 2025 – Oct 2025
- Developed the SLT Tier Management System using React JS, Spring Boot, MongoDB, Hibernate (ORM) and Thymeleaf.
- Implemented Microsoft Azure authentication; managed version control via Bitbucket with Agile/Scrum methodology.
- Built the SLT Appointment Booking System and Employee Management System with REST API and MVC architecture.
- Designed full-stack systems supporting 200+ concurrent users with optimized performance.
Ceylon Petroleum Corporation
IT Technician — Intern · Colombo
Past
Jul 2021 – Jul 2022
- Developed an Inventory Management System to track IT department assets using Java and MySQL.
- Performed network troubleshooting, hardware configuration, and IT infrastructure maintenance across the organization.
Mount Calvery High School
IT Teacher · Galle
Past
Sep 2017 – Apr 2019
- Developed the MCHS Management System to streamline school administration using C# .NET Framework and MS SQL Server.
- Delivered IT curriculum combining practical programming skills with theoretical computer science foundations.
Portfolio
Featured projects
🏥
01
Integrated Hospital Management & Appointment System
Automated patient records and appointment scheduling with a user-centric design
philosophy to streamline hospital workflows end-to-end.
Patient record automation & scheduling
20% performance improvement achieved
User-centric UX design
Enterprise · Healthcare
⭐ GitHub
View details →
🍽️
02
Comprehensive Restaurant Order & Sales Management Platform
Full-featured POS system with real-time order tracking, receipt printing, and
multi-threading capabilities for maximum throughput.
Real-time order tracking & receipt printing
15% performance boost via multi-threading
Intuitive user-centric design
POS · Restaurant
⭐ GitHub
View details →
📜
03
Certificate Management System
Web-based certificate management built with strict MVC architecture using OOP-PHP,
MySQL, HTML, CSS, JavaScript, and jQuery libraries.
Clean MVC architecture pattern
10% performance optimisation
Full CRUD operations
Web · PHP
⭐ GitHub
View details →
📡
04
SLT Tier Management System
Enterprise-grade CRUD application deployed at Sri Lanka Telecom — transfers data
front-to-back via REST API, tested with Postman, supports 200+ users.
Supports 200+ concurrent users
Full REST API with Postman test suite
Production deployment at SLT
Enterprise · Telecom
⭐ GitHub
View details →
🐾
05
Integrated Pet Store Management Platform
Full-featured pet store management system handling pets, products, food, customers and
users — with billing, invoicing and admin role-based access control.
Pet, product & food catalogue management
Customer billing & invoice generation
Admin privileges & role-based access
Desktop · Retail
⭐ GitHub
View details →
TalentAI — AI-Powered HR Automation & Workforce Management
Full-stack AI platform transforming HR management with RAG policy reasoning, LangGraph
autonomous workflows, and facial recognition attendance — reducing HR processing time by 80%.
80% reduction in HR processing time
Leave approvals: 2–5 days → under 3 seconds
98%+ facial recognition accuracy (OpenCV + DeepFace)
70% reduction in payroll errors
AI · HR · Full-Stack · B.Tech Final Year
⭐ GitHub
View details →
My Journey
Career timeline
2017
🏫
Work
📍 Mount Calvery High School · Galle, Sri Lanka
Joined as an IT Teacher, responsible for delivering the IT curriculum to students.
Also developed the MCHS Management System in C# and .NET Framework with MS SQL Server —
automating school administration from day one.
C#
.NET Framework
MS SQL Server
Teaching
Curriculum Design
📋
Education
📍 College of Technology · Colombo, Sri Lanka
Enrolled in the NVQ Level 05 Diploma in IT, deepening foundations in software
programming, web application development, and software testing practices — forming the academic backbone
of my engineering career.
Software Programming
Web Dev
Software Testing
NVQ Level 05
🛢️
Work
📍 Ceylon Petroleum Corporation · Colombo, Sri Lanka
Built an Inventory Management System for the IT department using
Java and MySQL. Also handled network troubleshooting and hardware configuration across the organization
— bridging software and infrastructure skills.
Java
MySQL
Network Infra
Hardware Config
🎓
Education
📍 University of Vocational Technology · Ratmalana, Sri Lanka
Pursuing a Bachelor of Technology in Software Technology, covering Java, cloud
application development, data structures, algorithms, PL/SQL, mobile apps, and system design — all while
applying knowledge in real industry internships.
Java
Cloud Dev
Data Structures
System Design
PL/SQL
Mobile Apps
📡
● Current
📍 Sri Lanka Telecom PLC · Colombo, Sri Lanka
Engineering enterprise-grade systems at Sri Lanka's #1 telecom provider. Built the
SLT Tier Management System, Appointment Booking System, and
Employee Management System — all serving 200+ users with Azure auth and Agile delivery.
Spring Boot
React JS
MongoDB
Azure
Hibernate
REST API
Agile/Scrum
2017
2025 · Present
Certifications & Learning
Always learning
Cloud Application Development
UoVT Coursework
Hands-on training in cloud-native application design and deployment principles.
Azure Authentication & Identity
Practical · SLT Internship
Implemented Azure Active Directory authentication in real enterprise production
systems.
System Testing & QA
UoVT Coursework
Trained in software testing methodologies, including unit, integration, and system
testing.
Mobile App Development
UoVT Coursework
Mobile application design and development as part of the BTech Software Technology
curriculum.
OOP & Design Patterns
Academic & Industry
Applied object-oriented principles and common design patterns across multiple
real-world projects.
Data Structures & Algorithms
UoVT Coursework
Core algorithmic thinking and data structure implementation for
performance-critical applications.
Education
Academic background
Bachelor of Technology in Software Technology
University of Vocational Technology
Sep 2022 – Present · Ratmalana, Sri Lanka
Relevant Coursework
Diploma in Information Technology (NVQ Level 05)
College of Technology
Jan 2019 – Jun 2021 · Colombo, Sri Lanka
Relevant Coursework
References
People who vouch for me
Rev. Fr. Bernard Jayasinghe, SJ
Principal · Mount Calvery High School, Galle
mouncalvery3@gmail.com
+94 77 887 7391
Mr. P. Uruthiran
Senior Lecturer · Faculty of IT, University of Vocational Technology
uruthiran@uovt.ac.lk
+94 71 601 9762
Get In Touch
Let's work
together
Open to internships, junior roles, and freelance projects.
Based in Colombo —
available worldwide remotely.
Email
dinuwan1211@gmail.com
Phone
+94 766 661 951
LinkedIn
Dinuwan Jayasinghe
GitHub
Dinuwan Jayasinghe
📬 Send me a message
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