JavaScript
Consulting
&
Custom
Software
 

100% U.S.-Based Vetted Employee Consultants

Keyhole Software provides expert JavaScript consulting, modernization, and custom application development. Our U.S.-based team specializes in React, Angular, Node.js, and scalable architectures.

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JavaScript Consulting Services

Keyhole Software is a trusted JavaScript consulting and development company, delivering high-performance web applications, scalable architectures, and modernization solutions. 

Strategic Advisory & Modernization

Upgrade outdated JavaScript applications with modern frameworks like React, Angular, and Vue.js. We provide expert guidance on performance optimization, framework migration, and Proof-of-Concept (PoC) development to ensure seamless modernization.

Custom JavaScript Application Development

From building dynamic Single-Page Applications (SPAs) to high-performance, enterprise-grade JavaScript solutions, we specialize in React, Angular, and Vue.js on the front end and Node.js, Express.js, and Next.js on the back end.

JavaScript Architecture & Scalable Design

Our JavaScript architects design robust, microservices-based and serverless architectures that scale with your business. Whether you need component-based frontend development or cloud-native API integrations, we build flexible and maintainable solutions.

JavaScript API & Third-Party Integration

Seamlessly integrate REST APIs, GraphQL, WebSockets, and third-party services into your JavaScript applications. We help businesses connect their applications with legacy systems, databases, and cloud providers for maximum efficiency.

Why Choose Keyhole For JavaScript Development

The Keyhole Difference

Our Experts Drive JS Results

We develop high-quality JavaScript applications and deliver positive project results to our long-term clients through our highly vetted team of U.S.-based employee consultants.

  • 17+ years of development experience on average - consultants average 17 years individual experience, ensuring deep JavaScript development expertise.

  • 78% of projects last year were with repeat clients – high retention rate reflects the trusted partnerships built over time.

  • 5+ years average consultant tenure – long-term employee team allows us to match the right consultant to the right project, ensuring deep project alignment.

If you’re looking for expert JavaScript developers who are dedicated to your success, look no further than Keyhole Software. Our team is ready to help you build scalable, high-performance JS applications that meet your business needs.

Why Clients Trust Keyhole

Trusted Partner

Trusted by nationwide clients—from Fortune 100 companies to innovative startups—across diverse industries.

Our commitment to quality keeps clients coming back: 2 out of 3 projects last year were with repeat clients.

AMC Theatres
Lockton Insurance
Mastercard
Lowe's
Evergy Logo
Commerce Bank
Nestle Purina
Burns & McDonnell
Northwell health

JavaScript Technologies

Technologies and Tools That Our Team Has Used Recently

At Keyhole Software, our JavaScript consultants bring deep expertise in the latest frameworks, libraries, and tools. We stay ahead of industry trends to help businesses build scalable, high-performance applications that stand the test of time. Here’s a look at the JavaScript technologies we’ve worked with recently:

Front End Frameworks & Libraries

We specialize in building modern, responsive, and high-performance UI/UX experiences with:

React
TypeScript
Next.js
Angular
Vue.js
Bootstrap
Angular.jsModernization

Backend Development & APIs

We architect scalable, secure, and efficient backends with modern JavaScript technologies:
Node.js
Express
GraphQL
Websockets
REST API
Microservices
Serverless
gRPC
tRPC
Nestjs

Cloud & Full-Stack JavaScript Ecosystem

We integrate JavaScript applications with leading cloud platforms and databases:
Azure
Azure Functions
Cosmos DB
Amazon web Services
Google Cloud
Azure App Services
PostgreSQL
MongoDB
DynamoDB
AWS Lambda
AWS Amplify
MySQL

Build Tools, DevOps, & Performance Optimization

We ensure JavaScript applications are fast, maintainable, and deployable using:
Webpack
Azure DevOps
CI/CD Pipelines
GitHub Actions
Kubernetes 
Docker
Jenkins
React JavaScript Framework Logo
Angular JavaScript Framework Logo
Node JavaScript Framework Logo
Vue.ks JavaScript Framework Logo

Recent JavaScript Thought Leadership

Stay ahead in the ever-evolving JavaScript ecosystem with expert insights from Keyhole Software. Our team of senior engineers, architects, and consultants regularly publish in-depth articles, tutorials, and case studies covering the latest JavaScript technologies, best practices, and industry trends.

Featured Enterprise Video Insight

Front-End Frameworks for Enterprise Applications: What Are Your Options?

Selecting the appropriate front-end framework for enterprise applications is a critical decision. In this video, Chief Technology Officer Jaime Niswonger explores the three leading front-end frameworks – Angular, React, and Vue – examining their origins, philosophies, and how they cater to the demands of enterprise-level applications.

React Development

Services Highlight

At Keyhole Software, we specialize in delivering high-performance, scalable React applications. Whether you’re building a new app from scratch or modernizing an existing project, our U.S.-based consulting team of React experts has the experience and skills to help you create seamless user experiences with cutting-edge technology. A selection of React-specific services follow:

We specialize in building dynamic, user-centric web applications using React, ensuring that every app is both feature-rich and high-performance. Whether you're looking to develop a Single-Page Application (SPA) or a more complex, multi-functional platform, we take a user-first approach.

Our team is skilled in leveraging the latest React features, such as Hooks, Context API, and Suspense, to create applications that are highly interactive and seamlessly responsive across devices.

We focus on scalability, maintainability, and the best practices for writing clean, reusable JavaScript code, ensuring your React application can evolve as your business grows.

Learn MoreReact Services Page

Recent JavaScript Case Study

"We have a very high respect for [Keyhole Consultant] and he has bailed [us] out of several potentially large, critical problems. He has done very well for us and has reflected well on your company too."

- Engineering Manager, Multi-National Railroad System Corporation
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We’ve provided JavaScript expertise on 150+ successful client projects

Here are some frequently asked questions our clients have had about Keyhole’s JavaScript services.

See Our Clients
View Our Successes

Ready To Meet Your Dedicated Software Dev Team?

Reach out to us and we'll set up a consultation to discuss your JavaScript development project needs. Whether you need a full JS development team, a strategic roadmap, or targeted staff augmentation, we’ll craft a solution that fits your business goals.

Software developer coding