Open to global opportunities
Software Developer · Full-stack focus
Lakshan Weerasingha.
I am a Software Developer with 3+ years of full-time professional experience building production SaaS, cloud-native, and AI-powered applications.
At Hacker Hostel, I deliver features across authentication, billing, real-time collaboration, reporting, and administration while contributing to AWS infrastructure, testing, code review, and CI/CD in a remote Agile team.
Based in Sri Lanka, I am currently focused on remote and freelance opportunities worldwide, and can join after a one-month notice period.
Sri Lanka
Open worldwide
1-month notice
3+ years full-time
Career
Experience.
Full Stack Developer
Hacker Hostel
Remote
Delivered 30+ features across authentication, billing, real-time collaboration, reporting, and administration for production SaaS products. Improved deployment time by 40% through CI/CD automation, contributed to AWS EC2/S3/CDK environments, administered Linux database servers, and used Jest testing and code review to reduce production defects.
ReactNext.jsTypeScriptNode.jsAWS CDKEC2S3MySQLJestLinux
Full Stack Developer Intern
Hacker Hostel
Remote
Completed a full-stack internship covering database design, REST API development, responsive frontend implementation, Agile ceremonies, troubleshooting, and test coverage.
ReactTypeScriptNode.jsExpress.jsMySQLTailwind CSS
Full Stack Developer Intern
S-Out Solution Pvt Ltd
Hybrid
Contributed to four client web applications across database schemas, REST APIs, responsive interfaces, and pre-production quality assurance. Identified 25+ issues before launch.
React JSExpress JSTailwind CSSNode JS
Computer Operator (Internship Trainee)
RDB Bank
Onsite
Learned basic banking operations and computer systems management.
Competency
Skills matrix.
Self-assessed proficiency across the stack I use for production work, grouped by layer.
Frontend
ReactExpert · 95%
HTML/CSSExpert · 95%
JavaScriptExpert · 93%
Tailwind CSSExpert · 92%
Next.jsExpert · 90%
TypeScriptAdvanced · 88%
Backend
REST APIsExpert · 90%
Node.jsAdvanced · 88%
Express.jsAdvanced · 85%
GraphQLProficient · 70%
Database
SupabaseAdvanced · 88%
PostgreSQLAdvanced · 85%
MySQLAdvanced · 80%
MongoDBAdvanced · 80%
FirebaseAdvanced · 75%
Cloud & DevOps
GitExpert · 90%
VercelAdvanced · 88%
AWS CDKAdvanced · 75%
JestAdvanced · 75%
GitHub ActionsAdvanced · 75%
LinuxAdvanced · 75%
AWSProficient · 65%
DockerFamiliar · 45%
AI Assistants
ChatGPTExpert · 95%
GrokExpert · 90%
Claude CodeAdvanced · 80%
GeminiAdvanced · 80%
AI-Powered Editors
CursorExpert · 95%
WindsurfAdvanced · 85%
AntigravityAdvanced · 80%
Academic
Education.
BSc (Hons) Computer Science
University of Wolverhampton
September 2025 intake through Achievers International Campus, Sri Lanka. Expected completion in 2026.
Higher National Diploma in Information Technology
Sri Lanka Institute of Advanced Technology
Graduated in 2024 with a GPA of 3.6 / 4.0.
National Vocational Qualification Level 4 - ICT
Vocational Training Authority Sri Lanka
Completed 2018. Acquired foundational skills in computer operations, basic programming, and IT support services.
Learning
Certifications.
AI & Cybersecurity Mastery
Udemy
Feb 2026
Credential ID - UC-9055192e-d029-4854-9e66-0ec8c41c4d25
View CertificateBack End Development and APIs
freeCodeCamp
Apr 2024
Credential ID: fcc73ba6061-a697-42e9-a5d0-8761e022fe3b-bedaa
View CertificateLegacy JavaScript Algorithms and Data Structures
freeCodeCamp
Apr 2024
Credential ID: fcc73ba6061-a697-42e9-a5d0-8761e022fe3b-ljaads\nSkills: Back-End Web Development, Full-Stack Development
View CertificateIntroduction to Front End Development
Meta
Mar 2024
Skills: User Interface Design, Front-End Development, Responsive Web Design, Web Development Tools
View CertificateIntroduction to Cybersecurity Tools & Cyber Attacks
Coursera
Mar 2024
Skills: Full-Stack Development
View CertificateComputer Networking - Local Area Networks and the OSI Model
Alison
Dec 2021
Credential ID: 1442-22744348?utm_campaign=just_certified_cert
The Fundamental of Digital Marketing
Sep 2021
Credential ID: GRJ 2UK 4SE\nSkills: Technical Writing, Tech Content Creator
Also
Additional Knowledge.
Digital Marketing
Experience in SEO, social media marketing, content strategy, and digital advertising campaigns.
Tech Content Creation
Creating technical content including tutorials, blog posts, and documentation. Skilled in explaining complex technical concepts in an accessible manner.
Linux
Proficient in Linux system administration, shell scripting, server management, and command-line tools.
Code
View ProfilePublic repositories.
Most of my day-to-day work lives in private company repositories. These are the side projects I can share publicly.
Selected repositories
Languages used
TypeScriptCSS
Let's discuss your Software Developer opportunity.
I am open to interviews for remote, hybrid, and on-site roles worldwide — Europe, USA, Australia, New Zealand, Singapore, and South Africa. Visa sponsorship is required for on-site roles.
Open to interviewsTypical response: <24h