Company specialized
in TypeScript

TypeScript development with stable teams and predictability, eliminating the turnover and rework risks that compromise delivery.

+19 years of experience

+600 companies served

+150 professionals

+13 countries

What does a TypeScript
development company deliver?

See the types of projects NextAge delivers with a dedicated squad, fixed scope and guaranteed SLA. Understand when TypeScript is the most solid technical choice for your roadmap.

Front-end development

TypeScript is now the standard for robust, scalable web interfaces, eliminating common JavaScript errors at development time. NextAge builds high-performance interfaces, typed end to end and ready to evolve without piling up technical debt.

Technologies: React, Next.js, Angular, Vue.js, Redux/Zustand, TailwindCSS

Back-end and API development

TypeScript on the back-end, with Node.js, combines the productivity of JavaScript with type safety, reducing production bugs and speeding up the development cycle. NextAge designs scalable APIs, with clear data contracts and consistent performance in every endpoint delivered.

Technologies: Node.js, NestJS, Express, Fastify, Prisma, PostgreSQL, Redis

Full-stack applications

TypeScript makes it possible to unify front-end and back-end under the same language and the same types, eliminating mismatches between layers and integration rework. NextAge delivers cohesive full-stack applications, with types shared from the database all the way to the interface.

Technologies: Next.js, tRPC, Prisma, GraphQL, Turborepo (monorepo)

Mobile applications

With TypeScript, business logic and types can be reused across web and mobile, speeding up cross-platform delivery without sacrificing quality. NextAge builds native and hybrid apps on a solid shared codebase.

Technologies: React Native, Expo, TypeScript shared with web

JavaScript to TypeScript migration

Legacy projects in plain JavaScript accumulate silent risk: type bugs, dangerous refactorings and slow onboarding of new developers. NextAge performs an incremental migration to TypeScript without interrupting operations, with progressive typing and full risk control.

Technologies: Incremental strict mode, module-by-module migration, integration with legacy codebases, static analysis tooling

Real-time applications and integrations

TypeScript ensures reliable data contracts in distributed systems and real-time communication, reducing integration failures between services. NextAge builds event-driven architectures and robust integrations across multiple systems.

Technologies: WebSockets, GraphQL, gRPC, microservices, message brokers (Kafka/RabbitMQ)

… and whatever else it takes for your digital transformation to happen now.

NextAge + TypeScript solutions

Proprietary methodologies and specialized services to maximize results in your TypeScript projects

Staff Augmentation

Allocation of specialist TypeScript teams. Unlike the traditional model, you get senior developers, TypeScript architects, tech leads and QAs focused on automated testing, all managed by us. We guarantee continuous code review and TypeScript architecture standards.

Choose it to scale TypeScript teams without the risks of traditional staffing

Java.NET / C#JavaScriptTypeScriptPythonRubyPHPGoKotlinSwift

Spring BootDjangoFlaskFastAPIRuby on RailsLaravelReact.jsAngularVue.jsNode.js

NextAge specialist ready to talk about your TypeScript project

Get the best TypeScript
developers on your project

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Hundreds of IT projects delivered

We have a solid project portfolio. Everything you need for software at the highest technical and strategic level.

Boost Customer Lifetime Value with AI Agents

Brazilian telecom operator with 67 million customers.

Challenge

In telecom, retaining customers is far cheaper than acquiring new ones. The company couldn't scale due to manual campaigns, lack of real-time data, and mistimed outreach that were pushing costs up and customer satisfaction down.

Solution

NextAge transformed raw data into meaningful customer relationships. We developed an AI agent platform that created personalized campaigns and journeys tailored to each customer, combining discounts, cross-selling, and cashback to drive maximum value.

Results

+6,7%

in revenue and retention

+12%

in satisfaction and engagement

-37%

in marketing costs

Want results like these in your company?

What sets our TypeScript
developers apart?

→ The differentials that made NextAge the number 1 choice of market leaders

Validated professionals

Our team is rigorously trained and validated before joining the project. You work with professionals who have already solved complex problems similar to yours.

Learning curve

Unlike traditional staffing, our teams are actively managed by us. Tech leads monitor developer performance and alignment with your goals, accelerating the learning curve.

Quality and testing culture

AI-powered automated testing, code review and CI/CD are part of our DNA. We deliver tested, production-ready code, reducing bugs and rework.

More agility

We adopt truly agile methodologies. Well-planned sprints, incremental deliveries and transparent communication. You follow progress in real time.

Knowledge as a foundation

Our TypeScript developers also have experience with databases (PostgreSQL, MongoDB, Redis), cloud (AWS, Azure, Vercel), DevOps and integration with front-end and back-end frameworks (React, Next.js, Node.js, NestJS). A complete view of the ecosystem.

Cultural alignment

Our teams understand the context and culture of companies. Clear communication, productive meetings and natural alignment with technical and business stakeholders.

// ABOUT

Why NextAge?

Learn our story →

Founded in 2007, NextAge was born to make software development more disruptive, human, and effective.

Innovation has always been at our core. We revolutionized the technology market with Staff Augmentation, our exclusive methodology that brings up to 40% more productivity to teams.

And we didn't stop there! We went further with NextFlow AI, a new way of developing that combines AI and human expertise in every line of code.

Today, we are the partner that transforms complexity into clarity and accelerates your operation with the best talent.

Learn more →

Want to understand more about how NextAge can help your business? Explore articles from our blog, testimonials from our clients and our other services to carry out your digital transformation in the best way.

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Questions and answers

Is TypeScript better than JavaScript for enterprise applications?

Yes. TypeScript adds static typing to JavaScript, which reduces runtime bugs, improves maintainability in large teams and makes long-term projects easier to scale. In enterprise applications, where multiple developers work on the same codebase for years, static typing significantly lowers maintenance costs.

Is it worth migrating a legacy JavaScript project to TypeScript?

In most cases, yes, especially in projects with multiple developers or a long lifespan. The migration can be done incrementally, file by file, without interrupting the system, allowing gradual adoption of strict mode and reducing the risk of regressions.

Does TypeScript work on both the front-end and the back-end?

Yes. TypeScript is used on the front-end with frameworks such as React, Angular and Vue.js, and on the back-end with Node.js through frameworks such as NestJS, Express and Fastify. Using one language across layers makes it possible to share types and business logic between front-end and back-end.

How long does it take to migrate a project from JavaScript to TypeScript?

It depends on the size and complexity of the codebase, but incremental migrations deliver value from the first weeks, without requiring a full rewrite of the system. Projects are typically migrated module by module, prioritizing the areas with the highest risk or rate of change.

Is TypeScript suitable for high-scale applications?

Yes. TypeScript is widely used by companies such as Microsoft, Airbnb, Slack and Shopify in high-scale applications, precisely because of the predictability static typing brings to large codebases and distributed teams.

What is the difference between hiring a JavaScript developer and a TypeScript developer?

Beyond JavaScript, a TypeScript developer masters static typing, interfaces, generics and compiler configuration, skills that directly affect code quality and maintainability in medium- and long-term projects.

Does TypeScript increase a project's initial development time?

There may be a small upfront investment in defining types and interfaces, but that time is recovered over the course of the project through fewer bugs, safer refactorings and faster onboarding of new developers.

Does TypeScript affect application performance?

No. TypeScript is converted (transpiled) to plain JavaScript before execution, so there is no runtime performance impact. The gains from TypeScript happen at development time, through early error detection.

What is the difference between TypeScript and other typed languages such as Java or C#?

TypeScript offers optional, gradual static typing, which lets each project adopt the level of rigor it needs, unlike languages such as Java and C#, which require typing across the entire codebase from the start. This makes adoption more flexible, especially for teams that already work with JavaScript.

Does TypeScript make integration between front-end and back-end teams easier?

Yes. When front-end and back-end are built in TypeScript, types, interfaces and data contracts can be shared across layers, eliminating mismatches and rework caused by format incompatibilities between teams.

Company specialized
in TypeScript

What does a TypeScript
development company deliver?