Architecture and systems
I think through system boundaries, API contracts, auth, data flow, deployment, and maintainability before complexity turns into long-term friction.
About
W.D. Lahiru Udayakumara
Software Engineer
Outcome-driven Software Engineer with 2+ years of experience designing and delivering scalable, high-performance digital solutions. I build user-centric applications, improve system reliability, and work comfortably across frontend, backend, cloud, IoT, and product-facing engineering.
My profile is strongest where technical clarity, product judgment, and ownership need to meet in the same place. I like work that turns ambiguous requirements into reliable systems and polished user experiences.
udayakumara.wdl@gmail.com
Phone
+94 78 778 6616
Website
lahiruudayakumara.com
lahiru-udayakumara-716a4b235
GitHub
lahiruudayakumara
Medium
@lahiruudayakumara
Role
Software Engineer
Experience
2+ years in delivery-focused engineering
Base
Colombo, Sri Lanka
Strength
Full-stack, IoT, and open-source systems
Engineering mode
Full-stack delivery
Decision style
Practical architecture
Creative edge
Product and visual polish
Senior profile
The value I bring beyond implementation.
I am most useful where the work needs delivery speed, technical structure, and enough product awareness to make the final system feel clean and durable.
Frontend and UX quality
I care about interface clarity, responsive behavior, performance, state handling, and the visual details that make software feel credible.
Execution and delivery
I break ambiguous work into shippable slices, choose practical patterns, and keep projects moving without overcomplicating the stack.
Team-level value
I bring readable implementation, calm debugging, useful reviews, strong handoffs, and enough communication to keep momentum across teams.
Experience
Professional experience
Roles across startup execution, open-source leadership, client delivery, and long-term visual production work.
DreamGen Labs
April 2024 - Present
Battaramulla, Sri Lanka
Software Engineer
- Design, develop, and maintain scalable web and mobile applications across modern frontend and backend stacks.
- Work across the full lifecycle: requirements, implementation, testing, deployment, optimization, and long-term maintenance.
- Collaborate with cross-functional teams to improve system performance, product quality, and user experience in Agile delivery environments.
OpenCorex
April 2025 - Present
Open Source Community
Founder & Lead Developer
- Founded and lead an open-source organization focused on practical developer tools, clean architecture, and hands-on engineering.
- Drive project direction, implementation, and community-facing delivery while building the technical foundation of the organization.
Bitzquad
July 2024 - January 2025
Homagama, Sri Lanka
Software Engineer Intern
- Contributed to a workforce and operations management platform for an international client.
- Improved platform functionality, user experience, and performance through collaborative problem solving and implementation work.
- Supported architectural refinements for scalability and evolving business requirements.
Fiverr
November 2019 - Present
Remote
3D Artist
- Deliver high-quality custom 3D design work for international clients across multiple industries.
- Use 3ds Max, V-Ray, KeyShot, and Photoshop to meet deadlines while keeping presentation and client satisfaction high.
Education
Academic background
Formal training in information technology with a practical bias toward shipping software.
BSc (Hons) in Information Technology
Sri Lanka Institute of Information Technology (SLIIT)
September 2022 - PresentMalabe, Sri Lanka
Secondary Education
Sri Subhuthi National School
January 2012 - December 2020Battaramulla, Sri Lanka
Leadership
Community and volunteering
Work that combines technical contribution, visibility, and organizational ownership.
IEEE CS - SLIIT
Full Stack Developer
March 2023 - December 2024
Co-designed, developed, and maintained IEEE Student Branch and Computer Society Chapter websites with a focus on responsive design, scalable architecture, and performance.
Open source leadership
Community builder
2025 - Present
Leading OpenCorex with a mix of strategic planning, technical direction, implementation, and community-facing collaboration.
Skills summary
Broad stack with delivery-oriented depth.
My stack covers full-stack web development, backend systems, cloud deployment, IoT workflows, product design tools, and the practical engineering utilities needed to deliver production software.
Languages
Kotlin, JavaScript, TypeScript, Python, Java, PHP, C, C++, C#, Go, Rust, Ruby
Frameworks
Express.js, Spring Boot, NestJS, Next.js, Angular, React Native, .NET, Django, Flask
Developer tools
Git, Docker, GitHub, GitLab, VS Code, JetBrains IDEs, Arduino IDE, Postman, Figma, GitHub Actions
Platforms
Firebase Console, Vercel, Netlify, AWS, GCP, Jupyter Notebook, Power BI, Draw.io
IoT and embedded
Arduino, ESP32, MQTT, sensor integration, connected-device workflows, device management, real-time monitoring
Databases
PostgreSQL, MySQL, MongoDB, Firebase
Libraries
React.js, Material UI, Tailwind CSS, Redux, Bootstrap
Soft skills
Communication, problem solving, adaptability, attention to detail, teamwork, time management
TypeScript
Next.js
Angular
React
Node.js
Spring
Flutter
MongoDB
PostgreSQL
Docker
GitHub Action
C
C++
IoT specialization
A clear strength in connected-device platforms
IoT is not just a line item in my stack. I work across embedded hardware, communication protocols, device-facing applications, and the cloud-supported management layer around them.
Embedded and device layer
Hands-on work with Arduino, ESP32, sensor integration, and device-oriented application logic that connects hardware behavior to software workflows.
Real-time communication
MQTT-based communication patterns, connected-device messaging, secure configuration flows, and visibility across active device states.
Management experiences
React Native mobile apps and React-based admin portals for monitoring, configuration, alerting, and device management at the application level.
Cloud-backed reliability
AWS-backed support for reliable device operations, scalable backend services, and production-minded rollout for real-world connected systems.
Open-source specialization
Open source is part of the engineering identity
I treat open-source work as serious engineering: reusable systems, contributor-ready structure, maintainable architecture, and tools with long-term value.
OpenCorex leadership
Founded and lead OpenCorex as an open-source organization focused on practical developer tools, clean architecture, and community-driven engineering.
Reusable engineering work
I enjoy building frameworks, packages, and project foundations that other developers can adopt, extend, and maintain with confidence.
Contributor-friendly structure
I value documentation clarity, understandable architecture, and implementation choices that make collaboration easier for future contributors.
Long-term maintainability
My open-source approach is shaped by release discipline, readable code, scalable structure, and practical decisions that keep projects healthy over time.
Applied systems
Domains and systems I have worked across.
This is the practical footprint behind the profile: IoT, backend tooling, ERP-style operations software, university systems, and open-source engineering work.
IoT device management and monitoring
Cross-platform mobile and admin experiences for real-time device monitoring, secure configuration, and operational visibility, backed by scalable cloud infrastructure.
Backend framework and package tooling
TypeScript framework and npm package work covering decorators, DI, CLI tooling, SSR support, metadata handling, and scalable project structure.
ERP and operational workflows
Business systems for invoicing, payroll, employee workflows, reporting, alerts, and role-based access across day-to-day operations.
Community and academic platforms
University and volunteering systems including skill-sharing, fine management, harvest management, e-channelling, and web platforms for student communities.