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TypeScript Development

Professional TypeScript development from experienced developers based in Graz, Austria.

TypeScript is not an optional add-on for us - it is the standard in every project. The static type system catches entire categories of errors at compile time, enables safe refactoring and provides excellent IDE support with autocompletion and inline documentation.

We use TypeScript consistently - from React frontends to NestJS backends to Astro websites and CLI tools. Combined with strict mode and modern features like template literal types and discriminated unions, we model complex business logic in a type-safe and traceable way.

The decision for TypeScript is no longer a question for us. The advantages in terms of code quality, refactoring safety and team productivity clearly outweigh any initial overhead. TypeScript shows its full strength especially in long-lived projects and larger teams.

Official website

Capabilities

What We Build with TypeScript

TypeScript Strict Mode Static Typing & Generics Type-Safe API Contracts Discriminated Unions & Pattern Matching Monorepo Tooling (Turborepo / pnpm) Shared Types (Frontend & Backend) Zod Schema Validation Code Generation & Tooling JavaScript to TypeScript Migration ESLint & Prettier Integration

Use Cases

Typical Use Cases

Full-Stack TypeScript Applications

End-to-end TypeScript development from frontend to backend with shared types, validated API communication and a unified development environment for maximum productivity.

Type-Safe API Layers

End-to-end type safety from database through API to frontend - with tools like Zod, tRPC or generated OpenAPI types that eliminate runtime errors.

Large Projects & Team Scaling

TypeScript enables efficient work in larger teams through self-documenting interfaces, automatic refactoring tools and compile-time checks that accelerate code reviews.

References

Projects with TypeScript

Klanglicht Audio Guide
Web Application

Klanglicht - Art Festival of Bühnen Graz

Klanglicht Audio Guide
RRZ Security Handbook
Web Application

Raiffeisen Rechenzentrum (RRZ)

RRZ Security Handbook
RICS Portal
Web Application

Raiffeisen Informatik Center Steiermark (RICS)

RICS Portal
View all references

FAQ

TypeScript FAQ

Why does dectria choose TypeScript over JavaScript?
TypeScript prevents entire categories of errors at compile time and enables safe refactoring in large codebases. Our experience shows that TypeScript projects have significantly fewer bugs and lower maintenance costs long-term. We use TypeScript in all new projects - without exception.
Can dectria migrate existing JavaScript projects to TypeScript?
Yes, we regularly migrate JavaScript projects to TypeScript incrementally. The process is gradual - we start with the most critical modules and expand typing step by step, without disrupting ongoing operations.
Does TypeScript slow down development?
Quite the opposite. The initial overhead for type definitions is more than compensated by faster debugging, better autocompletion and safer refactoring. In our experience, TypeScript teams are more productive long-term than JavaScript teams - especially with growing codebases.

Every project starts with a conversation.

Let us talk about your individual needs and goals.

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