I'm Vehan Hemsara, a passionate software engineer specializing in web and mobile development. My work is driven by a deep love for technology and a commitment to creating innovative solutions that make a meaningful impact.
Currently, I'm a CTO at Plestu, where I lead the technical vision and development. I specialize in building scalable mobile applications with Flutter and robust backend systems with Node.js, ensuring our platform delivers exceptional user experiences.
In the past, I've had the opportunity to develop software across a variety of settings. from start-ups and digital product studios to enterprise solutions. My work spans mobile apps, web platforms, and open-source tools that have reached thousands of developers worldwide.
Software Engineer
Designed and developed a mobile application from scratch, managing the entire infrastructure and ensuring a user-friendly experience.
- •Built a full-featured social media app from ground up with real-time notifications
- •Implemented secure authentication with OAuth2 and JWT token management
- •Designed scalable database architecture handling 10k+ concurrent users
Delivered production-ready app in 6 months, now live on App Store & Play Store with active user base
Flutter
DartNest JSSoftware Engineer
Revamped and enhanced SpotonCars' digital ecosystem, including mobile applications, websites, and backend services.
- •Rebuilt legacy driver app with modern Flutter architecture and clean code principles
- •Rebuilt customer app and redeveloped company website with modern Flutter/Next JS architecture
- •Build microservices using GoLang to avoid latency and enhance customer experience
- •Maintained real-time GPS tracking system with route optimization
- •Integrated Square/Paypal payment processing with split payment support, Refunds.
- •Created admin dashboard for fleet management and analytics and redesigned the websites for better user experience
Reduced latencies in the systems and improved driver efficiency significantly through optimized products
Flutter
NestJS
TypeScript
Redis
PostgreSQL
WebSocket
Google Maps APISquareFounder
Build innovative software solutions for clients across the globe while effectively managing and inspiring teams.
- •Founded and scaled a software consultancy serving international clients
- •Led a team of 3+ developers across multiple concurrent projects
- •Established development workflows and coding standards
- •Delivered 15+ successful projects for startups and enterprises
Generated consistent revenue while maintaining 100% client satisfaction rate
Flutter
React
Node.js
Python
AWS
FirebaseSoftware Engineer
Worked across mobile and backend development to build polished apps for B2B, B2C, and SaaS products. Took ownership of end-to-end features, from API design to the final mobile experience.
- •Delivered cross-platform features with Flutter and custom backend services
- •Handled NFC integrations for secure and quick data sharing
- •Built in-app monetization using RevenueCat and platform billing
- •Added multilingual support and handled translation workflows
- •Optimized offline workflows with local caching and sync logic
Improved the performance, stability, and shipping speed of several products, helping the company deliver smoother releases and better user experiences.
FlutterNode.js
NFC
RevenueCat
i18n
SQLite
REST APISenior Software Engineer
Worked on health tech system and handled both mobile and web builds using Flutter and Flutter Web.
- •Implemented Apple Health data syncing and handled secure data pipelines
- •Improved reliability of less optimized APIs
- •Built logging and monitoring features for better issue tracking
- •Handled app security and data protection features across the stack
Helped the team maintain a more stable product by utilizing existing APIs and overall app reliability.
FlutterFlutter WebApple HealthKitREST APISecurityState ManagementBackend Developer (Freelance)
Built backend services for an accounting platform, focusing on clean structure and reliable performance.
- •Used NestJS to design and build core backend modules
- •Wrote Python scripts for scraping and automation tasks
- •Set up CI/CD workflows and deployments on Google Cloud
- •Added unit tests and integration tests for stable releases
Delivered a scalable backend foundation and smooth deployment process for the product.
NestJSPythonGoogle CloudCI/CDPostgreSQL
Docker
Plestu
Plestu
SpotonCars
Spotoncars LTD
TSL
Mic Holdings Inc.
Simology
Simology Inc.
VitaLink
In ProgressPersonal Project
PAFFREL E-Library
PAFFREL
We had the pleasure of working with Vehan on our driver and customer mobile application. He seamlessly integrated with our team, consistently met deadlines, and ensured the project ran smoothly from start to finish. We're grateful for his contributions and beyond his skills, his professionalism and collaborative spirit made a pleasure to work with. We would highly recommend him to anyone in need of a dependable and skilled professional.
Director, SpotonCars LTD
As the CEO of Plestu, I am thrilled to provide this testimonial for Vehan Hemsara, our exceptional CTO. Vehan has been instrumental in shaping the technical foundation and driving the innovation behind our company. Vehan's ability to design and implement complex infrastructures has allowed us to bring our ideas to life, transforming concepts into fully functional and user-friendly solutions. His expertise in Flutter and Node.js has been a cornerstone of our success, and his leadership has ensured the seamless development and deployment of our mobile application.
Founder, Plestu
I came across Vehan on social media and was genuinely surprised by his skill set. As a fellow software engineer I decided to trust him with a project and he really delivered. Despite a slow start he stayed committed and pushed through until the project was a success. Vehan went beyond his role, took initiative, and showed real dedication. His performance especially in Flutter mobile app development was impressive.
Software Engineer
I’ve had the chance to work alongside Vehan and I can say without hesitation that he stands out in the world of Flutter and mobile development. He consistently builds high-quality apps and handles complex challenges with confidence. What impressed me most is his hunger to learn and try new things, which always elevates the team around him. He’s not only skilled but also a supportive and collaborative teammate. I’m confident he’ll continue to excel and I fully recommend him.
Proactive Software Engineer | Web | Mobile | Cloud
I worked closely with Vehan when he was the only Flutter developer at our agency. Even as an intern he handled projects independently with very little supervision. His drive to learn and grow was clear in how he constantly picked up new skills by observing others. On top of his technical ability, he’s a genuinely positive and friendly person who brings a good vibe to the team. I strongly recommend him to any team looking for a reliable and talented developer.
Lead - Product Management @ Type B Digital