Hire dedicated JavaScript developers

300+

JavaScript experts on staff and ready to go

75%

senior or mid-level developers

1–2

days to deliver handpicked CVs

3–5

days to staff your team

Why hire JavaScript programmers from Innowise

Large in-house talent pool

Need developers on short notice? With over 300 JavaScript engineers on staff, we can match you with the right fit without drawn-out hiring cycles.

Pre-vetted JavaScript experts

Every JS developer at Innowise passes advanced tech interviews, real-world coding tests, and soft skill checks. You get engineers who can collaborate and deliver.

Quick start for any JS stack

Vue, Angular, full-stack with Next.js — whatever your setup is, we ramp up fast. Most clients see their JavaScript devs onboarded in just 3 to 5 days.

Compliance-ready JS experts

Our JavaScript engineers hold certifications in Azure, AWS, and other platforms. We’re also ISO 27001, 9001, and SOC 2 compliant.

Flexible scaling, fast swaps

Need to scale your frontend team? Or replace a backend JS engineer mid-sprint? We make changes fast without stalling your work.

Clear rates & reporting

You’ll always know exactly what you’re paying for. We offer fair rates, transparency, and reporting that actually tells you what’s happening.

Meet our dedicated JS developers for hire

Ania M.

JavaScript developer

5+ years of experience

Warsaw, Poland

5+ years of experience

Warsaw, Poland

Ania is a JavaScript developer working from the UTC+3 timezone with 5+ years of experience building web apps for education, business, and project management. She specializes in UI/UX, TypeScript, AWS, REST/GraphQL APIs, and modern front-end technologies.

JavaScript SCSS Tailwind CSS Jest i18next Yup Chart.js GitLab CI/CD Webpack Figma

Hire Ania

Łukasz D.

JavaScript developer

7+ years of experience

Warsaw, Poland

7+ years of experience

Warsaw, Poland

Łukasz is a JavaScript developer based in UTC+3, with over 7 years of experience in FinTech, insurance, IoT, and data visualization. He’s built scalable apps with microfrontends, reactive UIs, and real-time data using RxJS, Docker, GraphQL, and Azure DevOps.

JavaScript TypeScript RxJS GraphQL WebSocket API Docker Docker Compose Azure DevOps Cypress Jest Jasmine

Hire Łukasz

Michal W.

JavaScript developer

5+ years of experience

Warsaw, Poland

5+ years of experience

Warsaw, Poland

With 5+ years of hands-on experience, Michal builds responsive, multilingual web apps for e-commerce, education, real estate, and content platforms. Working from UTC+1, he brings deep knowledge of TypeScript, RxJS, Tailwind CSS, Zod, Google Maps API, and Chart.js.

HTML5 CSS3 SCSS Yup Axios i18next Jest Vitest Figma localStorage

Hire Michal

Bartosz T.

JavaScript developer

8+ years of experience

Warsaw, Poland

8+ years of experience

Warsaw, Poland

Bartosz is a JavaScript developer with 8+ years of experience across EdTech, FinTech, healthcare, and LMS domains. Based in UTC+2, he’s built learning systems, donation platforms, healthcare portals, and personal finance apps, delivering responsive, real-time user experiences.

TypeScript RxJS Tailwind CSS GraphQL WebSocket API Azure Functions Docker Chart.js NX i18next

Hire Bartosz

Mikołaj R.

JavaScript developer

10+ years of experience

Warsaw, Poland

10+ years of experience

Warsaw, Poland

Mikołaj is a full stack developer with 10+ years of experience working with JavaScript, TypeScript, Angular, Node.js, and MongoDB across fintech, banking, and entertainment. Based in UTC+3, he’s led the development of asset management systems, developer APIs, and banking platforms.

JavaScript TypeScript AngularJS Node.js RxJS GraphQL MongoDB Webpack Cypress Docker Kubernetes

Hire Mikołaj

Igor S.

Junior React Native Engineer

2.5+ years of experience

Warsaw, Poland

2.5+ years of experience

Warsaw, Poland

Igor is a JavaScript Developer based in the UTC+3 timezone with 6+ years of experience. He’s built platforms for corporate banking, business solutions, and video streaming, focusing on dynamic UIs, data visualization, and secure API integrations.

JavaScript TypeScript Axios Chart.js Yup SCSS Tailwind CSS i18next Fuse.js Firebase Jest

Hire Igor

Hire JS coders ready to ship from day one

Our tech stack to drive JavaScript development

Programming languages

JavaScript

TypeScript

Front-end frameworks

React (Next.js)

Angular

Vue.js (Nuxt.js)

Back-end frameworks

Node.js (NestJS, Express.js)

Cross-platform development

Electron

Cordova

Ionic

Database

MongoDB

MySQL

PostgreSQL

Testing frameworks

Jest

Cypress

Playwright

Projects delivered by our JS coders

Hire our JavaScript engineers in 3 steps

Share your requirements

Day 1

Let us know the JavaScript talent you’re looking for, including experience level, toolset, & preferred timezone. We’ll start curating the shortlist immediately.

Review top-tier candidates

Day 2-3

We send you a carefully matched list of vetted JavaScript engineers with CVs, rates, & availability. You pick who to interview, and we take care of the rest.

Kick off with your new team

Day 3-5

Once you've made your picks, we finalize the paperwork and onboarding. Your JavaScript developers are ready to start contributing in just a few days.

Scale without the stress of long hiring cycles.

We match you with trusted JavaScript talent, ready to hit the ground running.

Hire the best JS programmers for your project

Custom web application development
Cross-platform mobile app development
Scalable backend and API development
Cloud-first application delivery
SaaS and XaaS product development

Custom web application development

Our JavaScript engineers build responsive, high-performance web apps. Whether it’s a dashboard, an admin panel, an ecommerce site, or a booking system, we deliver pixel-perfect interfaces and clean architecture using frameworks like React, Vue, and Next.js.

Cross-platform mobile app development

We use JavaScript and TypeScript with React Native to build mobile apps that work seamlessly across iOS and Android. Our developers optimize for performance, responsive UI, and native feel, while keeping your codebase lean and maintainable.

Scalable backend and API development

Need to process concurrent requests or handle real-time data? Our engineers design and implement secure REST and WebSocket APIs, manage serverless infrastructure, and build cloud-native services that scale with your product.

Cloud-first application delivery

We deploy JavaScript applications on AWS, Azure, and GCP using modern DevOps pipelines. From frontend hosting to backend functions, we create cloud-ready solutions with fast rollout, robust CI/CD, and automated monitoring baked in.

SaaS and XaaS product development

Our JavaScript teams help launch subscription-based platforms with built-in user roles, payments, usage tracking, and secure authentication. Whether you’re building a B2B SaaS dashboard or a multi-tenant platform, we architect for scale.

Custom web application development

Cross-platform mobile app development

Scalable backend and API development

Cloud-first application delivery

SaaS and XaaS product development

How our JS experts ensure code quality

01/04

Scalable, maintainable JavaScript

Adhering to JavaScript & ECMAScript standards
Structuring code into modular, reusable components
Enforcing consistency with ESLint & Prettier
Clear naming and concise commenting
Documenting dependencies and project logic

02/04

Robust testing & automation

Unit tests with Jest & Mocha
Covering edge, normal & invalid scenarios
Automated CI tests for every change
Maintaining critical path coverage
Retesting after updates to prevent regressions

03/04

Collaborative code reviews

Structured pull requests for all changes
Reviewing logic, security & maintainability
Git workflows for tracking and feedback
Early issue detection via SonarQube analysis
Cross-team feedback to align best practices

04/04

Measurable quality metrics

Tracking Maintainability Index
Reducing cyclomatic complexity
Monitoring code coverage for reliability

Scalable, maintainable JavaScript

Robust testing & automation

Collaborative code reviews

Measurable quality metrics

Engagement models for hiring remote JavaScript developers

Fill specific JavaScript skill gaps

Need someone with deep expertise in Node.js, TypeScript, or advanced animations in GSAP or Three.js? Bring in JavaScript developers who cover exactly what your project lacks, whether it’s for a quick delivery sprint or a full-scale refactor.

Get JS expertise

Build a dedicated JavaScript team

Want to extend your dev capacity without adding to the headcount? Hire a fully dedicated JavaScript team that adapts to your setup, syncs with your sprint cadence, and collaborates closely with your internal team leads without the HR hassle.

Build your JS team

Let us handle your entire project

Prefer to stay focused on the business side? We’ll take full ownership of your JavaScript project from architecture and frontend/backend dev to QA, deployment, and support. You get a finished product without daily workflow management.

Outsource to JS pros

How we source the top JavaScript experts

Our process is designed to connect you with skilled JavaScript developers in the shortest time. We combine rigorous screening with flexibility to ensure the right technical and cultural fit for your team.

Screening JavaScript-focused CVs

From a deep pool of hands-on JavaScript engineers, we shortlist those with the most relevant technical skills and domain expertise for your use case.

Interviewing for remote readiness

Our HR team meets shortlisted candidates to assess soft skills, communication, and how well they collaborate in remote, distributed environments. We look for self-driven problem solvers.

Evaluating tech and communication skills

Senior engineers assess candidates’ knowledge of JavaScript, async code, DOM handling, and app architecture, while also checking how clearly they explain ideas and handle team feedback.

Assigning a practical coding task

Candidates complete a task based on real-world JavaScript challenges like UI state, form handling, or API integration. We evaluate quality and delivery speed.

Checking professional references

We reach out to previous employers to confirm reliability, past performance, and how well they collaborated on real projects. This step verifies their proven success.

Interviewing with our team or yours

Before starting a project, top candidates connect with either our leadership or yours. It’s an opportunity to ask in-depth questions and gain insight into how they think and work.

Hiring the top-performing 5%

Only the top 5 percent of candidates receive offers. We invest in their long-term growth with ongoing training in modern JavaScript tools, libraries, and performance best practices.

Screening JavaScript-focused CVs

From a deep pool of hands-on JavaScript engineers, we shortlist those with the most relevant technical skills and domain expertise for your use case.

Interviewing for remote readiness

Our HR team meets shortlisted candidates to assess soft skills, communication, and how well they collaborate in remote, distributed environments. We look for self-driven problem solvers.

Evaluating tech and communication skills

Senior engineers assess candidates’ knowledge of JavaScript, async code, DOM handling, and app architecture, while also checking how clearly they explain ideas and handle team feedback.

Assigning a practical coding task

Candidates complete a task based on real-world JavaScript challenges like UI state, form handling, or API integration. We evaluate quality and delivery speed.

Checking professional references

We reach out to previous employers to confirm reliability, past performance, and how well they collaborated on real projects. This step verifies their proven success.

Interviewing with our team or yours

Before starting a project, top candidates connect with either our leadership or yours. It’s an opportunity to ask in-depth questions and gain insight into how they think and work.

Hiring the top-performing 5%

Only the top 5 percent of candidates receive offers. We invest in their long-term growth with ongoing training in modern JavaScript tools, libraries, and performance best practices.

What our customers think

Ramy Hardan CEO bitzeche GmbH

“I was impressed how good the code quality was right from the beginning. Their frequency and style of communication was to the point and never more than needed, but not less either.”

Industry Software
Team size 1 specialist
Duration 5 months
Services Custom software development

Joanna Wolynska HR & Project Manager Netdevops Luxembourg S.a.r.l

“Innowise’s help allowed us to complete the project on time. Their flexible and adaptable approach resulted in a smooth partnership. Ultimately, they were communicative, responsive, and easy to work with, on top of being technically proficient.”

Industry IT services
Team size 1 specialist
Duration 6+ months
Services Custom software development

Kevin Day Founder and President Trumpet

“Innowise is able to implement new features faster than the internal team would be able to. Their communication is effective and solution-oriented. Overall, the speed with which they deliver quality code is wonderful.”

Industry Information technology
Team size 2 specialists
Duration 24 months
Services Custom software development

Need help with JavaScript development?

Explore our full-service approach to building fast, scalable apps.

FAQs

When hiring a dedicated JavaScript developer, look for strong experience with core JS and modern frameworks like React, Angular, or Vue. Bonus points for clean code practices, API integration skills, and familiarity with testing tools. And of course, solid communication and problem-solving go a long way on any dev team!

Absolutely, there are a few key differences! Freelance JavaScript developers can be great for short-term tasks or quick fixes, but agencies typically offer vetted teams, faster staffing, consistent quality, and long-term support. It really comes down to the level of reliability, scalability, and project oversight you need.

When budgeting for dedicated JavaScript developers, consider the developer’s seniority, required tech stack, project complexity, and duration. Rates can also vary based on location and engagement model. At Innowise, we keep it transparent from day one. No hidden fees, just clear pricing and support to help you plan with confidence.

At Innowise, we make scaling easy. If your project grows and needs more hands on deck, we quickly provide additional vetted JavaScript developers who match your stack and workflow. Whether you need to ramp up fast or scale down later, we handle it smoothly.

We take both security and code quality seriously at Innowise. Our JavaScript developers follow best practices like secure coding guidelines, code reviews, and regular static analysis. We write clean, testable code with strong version control and run unit and integration tests to catch issues early. Plus, we're ISO 27001 certified, so your data and IP are always in safe hands.

Our developers for hire

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What happens next?

Once we’ve received and processed your request, we’ll get back to you to detail your project needs and sign an NDA to ensure confidentiality.

After examining your wants, needs, and expectations, our team will devise a project proposal with the scope of work, team size, time, and cost estimates.

We’ll arrange a meeting with you to discuss the offer and nail down the details.

Finally, we’ll sign a contract and start working on your project right away.