Web development company in Sri Lanka
Zeylix is a web development company in Colombo, Sri Lanka, building custom web applications for startups and growing businesses at home and abroad. We work on products that have to keep working long after launch: customer portals, internal tools, SaaS platforms and e-commerce back offices.
Every build starts with your business problem, not a template. We design the architecture around how your product will grow, write code your future team can read, and ship in small, reviewable increments so you see progress every week.
What we deliver
Custom web applications
Dashboards, portals and workflow tools built around your process, with role-based access, audit trails and the integrations your team already relies on.
SaaS product development
Multi-tenant platforms with subscriptions, onboarding and admin tooling, built so the first version can grow into the tenth without a rewrite.
Marketing sites and landing pages
Fast, search-friendly sites with strong technical SEO, structured data and Core Web Vitals treated as requirements rather than afterthoughts.
APIs and integrations
REST and event-driven APIs, payment gateways, ERPs, CRMs and third-party services, connected reliably with proper error handling and monitoring.
Modernising legacy systems
Incremental migration of ageing web apps to a modern stack, keeping the business running while the old system is retired piece by piece.
Who it’s for
- Founders turning a validated idea into a production web product
- Businesses replacing spreadsheets and manual processes with a proper system
- Teams that need senior engineers to extend or rescue an existing codebase
Technologies
- React
- Next.js
- TypeScript
- Node.js
- .NET
- MySQL
- AWS
How we work
- 01
Discovery
We start with a conversation, not a pitch. You walk us through what you're building and where it's stuck; we ask the hard questions and tell you honestly whether Zeylix is the right fit.
- 02
Scope & Feasibility
We pressure-test the idea against real constraints — architecture, timeline, budget — and come back with a practical plan instead of a vague estimate.
- 03
Trial Sprint
Before any long commitment, we run a paid trial sprint or POC. You see how we actually ship; we learn your product and your standards. Low risk, real output.
- 04
Long-Term Build
Once the trial proves the fit, we move into the full engagement — the same team you met on day one, weekly reporting, and a roadmap shaped by what we learned in the trial.
Frequently asked questions
- Which technologies do you use for web development?
- Most of our web work uses React and Next.js with TypeScript on the front end, and Node.js or .NET on the back end, backed by MySQL and hosted on AWS. We choose the stack to fit your product and your team, not the other way round.
- Do you work with clients outside Sri Lanka?
- Yes. We are based in Colombo and work with clients worldwide, with overlapping working hours, weekly reporting and direct access to the engineers building your product.
- How do we get started?
- We begin with a discovery call, then scope the work against your timeline and budget. Before any long commitment we run a short paid trial sprint so you can see how we work and what we ship.
- Can you take over an existing web application?
- Yes. We start with a code and infrastructure review, fix the risks that matter most, then continue feature work on a codebase we understand.
Other services
Tell us about your project.
A short call is enough to tell whether we’re the right fit. We reply to every inquiry within 24 hours, Monday to Friday.
Start a project