Hire Top Freelance Jest DevelopersFind top freelance Jest developers quickly and easily on Codementor. Work with our vetted developers who have the proven skills and experience to get the job done. Get help with projects by-the-hour or long-term. Hire a trusted Jest freelancer on Codementor today.
As a seasoned engineer with over five years in complex software systems across multiple industries (such as Logistics systems, HealthTech, EdTech, among others), I bridge the gap between complex technical challenges and accessible solutions. My expertise in cloud-based applications isn't just about writing code, it's about making technology work for people. Whether you're struggling with debugging code, designing efficient algorithms, or navigating complex system architectures, I've been in your shoes. I've developed enterprise applications from the ground up and guided hundreds of learners through challenges ranging from basic syntax errors to advanced architectural decisions. **What sets me apart? I don't just solve problems, I help you understand them. My approach combines hands-on engineering experience with a talent for explaining complex concepts in straightforward terms. From untangling complex code issues to optimizing system performance, I translate technical challenges into clear, actionable steps**. My greatest achievement isn't the systems I've built, it's watching my mentees transform from curious beginners to confident professionals. This journey has sharpened my ability to meet you exactly where you are—whether you need an expert to help resolve a persistent bug or a patient guide through new programming paradigms. **Let me help you turn technical obstacles into opportunities for growth.**
Hey! 👋 I’m Pradeep — a **Web and Mobile App Developer with 6+ years of experience** building scalable, real-world applications. On *Codementor*, I work with: - Clients who need help building or fixing projects - Developers looking for mentorship or debugging help - Job seekers preparing for frontend roles Whether you’re launching an app, scaling a codebase, or looking to level up — I’ve got you covered.
I'm Matei, a full-stack developer with over 10 years of experience, specializing in JavaScript, React, and Node.js. I help developers at all levels overcome challenges, from debugging complex issues to understanding core concepts. My approach is patient and tailored to your needs, ensuring you gain confidence and clarity in your coding journey. Format: - regular (long term) or one-time - for any level (beginner/intermediate/advanced) - personalized take-home tasks & resources - 45-90min sessions, up to 6hrs/day on request - first session of week: 60$/hr, after that 30$/hr Availability: - 4:00-18:00 UTC on workdays - irregular on weekends - last minute or late night sessions on request (email matei@copot.eu) Technologies: - JavaScript: ESNext, NodeJS/Deno, TypeScript, React, Vue, NodeMCU, & more - Front-end Web Dev: HTML5, CSS3, responsive design, PWAs, SPAs, & more - Back-end Web Dev: Express/NextJS APIs, Python, AWS, Docker, SQL, PHP, & more - App Dev: Mac/Linux & Android, Electron, Expo, Python, Stripe, UX, & more - others: always curious about other technologies, e.g. haskell, ruby, WASM, WebGL... = Why me? I'm typically paid €100/hr by top companies, so the lower rate here means you're getting top-tier expertise at an accessible price. I enjoy mentoring because it brings variety and a more collaborative and relaxed dynamic. I have a proven track record of guiding learners from zero experience to landing high-paying jobs. My teaching adapts to your pace and goals — you'll always get honest, actionable advice, including what’s realistic and what’s not. If you're serious about growing your skills or career in tech, I’d be glad to support your journey.
_Full-Stack Web Application Developer & SaaS/PaaS Product Architect with engineering leadership over distributed, remote, offshore, and onsite teams of front-end coders and back-end developers._
Sarah has over twelve years of professional experience developing web applications, with a focus on e-commerce, e-learning and data analytics. Over her long career, Sarah has worked for Silicon Valley startups, boutique design firms, and large long established tech companies. Though her recent focus has been primarily on the front-end, Sarah has worked across the stack, with expertise in a range of technologies including ReactJS, Django, Ruby on Rails, and WordPress.
Erik is a senior frontend engineer based in Singapore. During the day, he works mostly with all things Javascript: React, NodeJS, styled-components building server-side rendered high performant webapp. He is passionate about Javascript and the React ecosystem, especially how to utilize it to improve web quality and development experience across projects. During the night, he is an amateur footballer, a rock climber and an OCR enthusiast. Also, sometimes he speaks at a local tech meetup, sometimes he spends hours watching backpack reviews and thinking of his destination for the next trips.
Former medical doctor with more than 10 years experience in mobile development. I worked for companies across the world. I am currently based in New Zealand, where I live with my wife and two daughters. I love science and inventions in general, I am passionate about any new technology.
Experienced **Senior Full Stack Engineer** with 5+ years of experience in Python and Javascript, delivering scalable web applications and optimizing system architecture. Skilled in solving technical challenges and driving innovation. Eager to join a dynamic team to contribute to impactful projects, fostering growth and technological advancement in high-performance environments.
Software Contractor and Senior iOS Engineer (Swift, RxSwift, SwiftUI, Combine, UIKit) Mentoring and focusing on the essentials, foundations and best practices of Software engineering and development. Swift, SwiftUI, clean code, Test Driven Development, Design Patterns, Software principles. Expert with MVVM, VIPER and The Composable Architecture (TCA) and more architectures. Building and deploying Startup and Enterprise apps to the App Store. Born in Spain🇪🇸, living in the UK🇬🇧, originally from the Philippines🇵🇭. - 8+ years of commercial experience building iOS applications in Swift. - Full Stack Developer. MERN stack. Cypress, Jest - 3 years of experience with React Native and bridging applications from Swift to React Native. _________________ Are you a freelancer looking to build a new app? Do you need a prototype for an app? Do you have a design and need a developer to build your app? Are you a company looking to outsource or build an app? Let's talk if you answered yes to any of the above questions. I provide solutions for startups offering the best options to save you time and keep your business growing. _________________ **Paradigms**: Object-oriented and Functional/Reactive programming. Creating meaningful and enjoyable UI transitions to keep the user engaged and access their data in real-time. Worked on production apps extensively with: - Swift - SwiftUI - Combine - Async/await - RxSwift - Firebase - Node.js - Cocoapods - Swift Package Manager Fundamental knowledge and teaching software architectures: - **MVC** (Model, View, Controller) - **MVVM** (Model, View, View Model) - **TCA** (The Composable Architecture) Software design principles: SOLID to improve orthogonality, flexibility and reusability of components. Communication of **data** from view controllers to any other view such as UIAlertController, container views, UITableViewCells, UICollectionViewCells, etc. Options to communicate data can be achieved through the use of weak delegates + Segues with Storyboards. Other options include using Databases. **Storage** - Firebase Real-time database, Firestore. - MongoDB, - UserDefaults - CoreData - Custom API (Facebook, Google, Github, your website, etc.) Alternatively offering a different solution programmatically without using Segues from Storyboards to increase performance and code maintainability. Several presentation styles, modals, over current context, custom, etc. with animations. Native components are the way to go with performance and maintenance. Working with UIKit, Foundation, SwiftUI - UITableView + Headers + Footers and custom UITableViewCell - UICollectionView + Headers + Custom UICollectionViewCell - UICollectionViewFlowLayout - Managing the Delegate and Data Source into their own components for efficient unit testing. - SwiftUI Lists and Stacks - iOS 13 and 14 Compositional Layouts in UICollectionView SwiftUI focuses on a declarative way of writing code. Teaching about the essentials of Functional Programming. **Networking** Native iOS - URLSession - Combine Third-party, external - Alamofire - Moya - PromiseKit **Testing frameworks** - XCTest (iOS native) - Quick - Nimble ____ I have experience creating Full stack applications connecting different services and stacks together. From iOS to Firebase, a custom backend and connecting 3rd party APIs to your application. 5+ years of experience building commercial and business iOS apps using different Software Architectures such as MVC and MVVM and following the SOLID principles. Adhering to Test-driven development along with pipeline automation and working closely with the Directors, team and customers to build a stable app on every release. Delivering high-quality products for easy maintenance, robustness, and readability along with applying the Agile principles. iOS networking and REST API implementations to gather data from the backend or other third-party providers.
With over 25 years in the software industry, I bring a robust mix of hands-on engineering and management expertise. Currently, I lead the teams for Gemini Code Assist at Google, where we develop and scale backend systems and extensions for both VSCode and IntelliJ to deliver high-performance code assistance. As a startup founder and an innovator, I enjoy wearing multiple hats, diving into new technologies, and taking prototypes from rapid development to production-scale systems. Proficient in over 15 programming languages, I primarily focus on JavaScript, TypeScript, Node.js, Electron, and Web technologies, with occasional use of Python. My approach is rooted in scalable solutions and inspiring teams to deliver impactful results.
We'll share your request with freelancers with relevant Jest skills and expertise.
Use our messaging feature to instantly chat with freelance Jest developers around the world.
Choose the best freelance Jest developer that meets your needs.
The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Jest project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Jest request on Codementor, check out our article.
We don’t charge anything when you post a freelance hiring request for Jest developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.
We do a comprehensive technical and communications screen of all Jest developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Jest developers’ user satisfaction rates.
For more answers to frequently asked questions, see here.