Full-Stack Product Development
End-to-end delivery — requirements, architecture, implementation, and production rollout across web applications and APIs.
Open to freelance projects
Hello.
I'm Ishantha
Freelance Fullstack Software Engineer
Freelance fullstack engineer with 12+ years building scalable products. Available for contract work alongside my full-time role — MVPs, features, or platform builds.
TypeScriptReactNode.jsPythonPostgreSQLAWSDockerGraphQLTypeScriptReactNode.jsPythonPostgreSQLAWSDockerGraphQLTypeScriptReactNode.jsPythonPostgreSQLAWSDockerGraphQLTypeScriptReactNode.jsPythonPostgreSQLAWSDockerGraphQLTypeScriptReactNode.jsPythonPostgreSQLAWSDockerGraphQLTypeScriptReactNode.jsPythonPostgreSQLAWSDockerGraphQL
About me
Engineering with intent.
I'm a fullstack software engineer who turns complex business problems into elegant, reliable software. Over 12+ years, I've architected and delivered platforms across fintech, SaaS, and enterprise — always with a bias toward clean code, thoughtful UX, and systems that scale. I'm based in Germany, originally from Sri Lanka, and work remotely with clients across Europe, America, and Canada. I'm open to freelance and contract projects alongside my full-time job — a strong fit when you need senior engineering for a defined scope without a full-time hire. Whether you need a greenfield product, a platform rebuild, or a long-term engineering partner, I bring deep technical expertise and a product-minded approach to every engagement.
12+Years of experience
20+Products worked on
100%Commitment to quality
My services
How I can help.
Freelance full-stack engineering for contract projects — from scoped features and MVPs to platform builds and technical leadership.
Angular & React Front-End Engineering
Enterprise front-end applications with Angular and React — shared UI libraries, state management, and performant, maintainable user interfaces.
Backend & Cloud Platforms
Scalable services with .NET Core and Node.js — REST APIs, microservices, and deployments on AWS and Azure.
Technical Leadership
Associate tech lead and team lead experience — code reviews, mentoring, reusable packages, and agile delivery practices.
Legacy System Modernization
Transform outdated systems for the modern stack — migrating monoliths to microservices, revamping legacy front ends, and moving products to current Angular, .NET, or cloud platforms.
Product A–Z Delivery
Full product lifecycle ownership — from requirement analysis and database design through architecture, development, testing, and production shipment.
Industry experience
Domains I deliver in.
Hands-on full-stack work across private enterprise products — from clinical systems, travel, and hospitality platforms to edtech, finance, and real-time mobility.
Healthcare & Clinical Systems
Clinical and operational systems spanning outpatient, inpatient, emergency, and laboratory workflows — with secure auth, microservices, real-time updates, and shared front-end libraries for enterprise healthcare products.
Travel & Tourism
Full-stack delivery for travel booking and curated destination platforms — Node.js backends on AWS (Lambda, S3, Cognito), relational data layers, and modern Angular front ends.
Hotel & Hospitality Management
Hotel and property management software — reservations, front-of-house operations, housekeeping workflows, and admin dashboards, with a strong focus on Angular front-end delivery.
Education & EdTech
Learning platforms with collaborative document tooling, in-browser annotation, wallet and payment integrations, and administration modules — from MVP through production on Python and Angular stacks.
Financial Services
Microfinance and lending platform delivery — requirements analysis, database design, and full-stack implementation for operational finance teams.
Mobility & Real-Time Systems
Fleet and on-demand transport management with live tracking, REST APIs, SignalR real-time channels, and hybrid mobile apps for drivers and customers.
Freelance on Upwork
Hire me on Upwork.
Find me on Upwork as a freelance fullstack developer with 100% Job Success. Review my client feedback, work history, and skills — a trusted way to hire for remote contracts with milestone payments.
- 100% Job Success Score on Upwork
- Secure contracts & milestone payments
- Client reviews & verified work history
- Invite or message on Upwork to get started
100% Job Success
View my Upwork profile
Opens Upwork in a new tab
Or
Contact
Have a project?
Let's talk.
Reach out for freelance projects, contract work, or product development partnerships. I typically respond within 24 hours.
- Greenfield product builds
- Platform architecture & scaling
- Long-term engineering partnerships
- MVP to production roadmaps