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1,074 Remote Ext.js 5 developers available to hire:

Freelance Ext.js 5 developers - Mike L.
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Mike L.

Vetted Ext.js 5 developer in the United States (UTC-5)

Highly skilled software development professional with over **25 years of experience** in software design, development, and integration. Advanced expertise in C#.NET, Java, database design, mobile development and web development with a passion for exploring innovative solutions to technical challenges.

Freelance Ext.js 5 developers - Juan F.
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Juan F.

Vetted Ext.js 5 developer in Mexico (UTC-6)

I'm a full-stack developer with over 15 years of experience in software engineering. I harness agile methodologies to deliver scalable, robust, and innovative solutions tailored to dynamic project needs. Throughout my career, I've excelled in roles as a Tech Lead and Senior Software Engineer at Flow, and I've contributed to transformative projects at IBM—partnering with clients in banking, retail, and small business. I specialize in turning complex challenges into streamlined, high-impact solutions from design through deployment. Passionate about technology and dedicated to continuous improvement, I’m eager to collaborate with teams and drive projects forward with technical excellence and strategic insight. Let's connect to explore how I can bring value and leadership to your next initiative. I’ve worked with OpenAI’s LLM and IBM’s older Watson platform. My background includes fine-tuning these systems for task-specific needs, integrating them into various applications, and addressing challenges like response latency and knowledge/context management. I’ve also spent considerable effort on prompt engineering to improve accuracy and reduce off-target or “hallucinated” responses from the models. I also have experience using function calling feature to make the AI do more than just work as a Chat box.

Freelance Ext.js 5 developers - Michael B.
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Michael B.

Vetted Ext.js 5 developer in the United States (UTC-5)

I am a Software Engineer with over twenty years of experience in Swift, SwiftUI, React, J2EE, Java, JavaScript, XML, SQL, Oracle, JDBC, Swing, HTML, JSF, and other web & mobile development technologies. Within the last three years I've been very involved in learning, developing, and publishing mobile applications in Android, Blackberry, and iOS using both native and cross platform development. I plan to invent a new technology or useful device in the future as my long term goal that will be used in a person's everyday life but I am still working on ideas. I also hope to make something of my own business, Smartware Design LLC, working as a technical software consultant on side projects for non-profits and small businesses. Specialties: Java, JavaScript, J2EE, Oracle SQL, AJAX, HTML, JSP, JSF, JBoss, RichFaces, JSTL, XML, Android, Blackberry, J2ME, iOS (XCode), iPhone, iPad, Xamarin, Appcelerator, Ionic Framework, PhoneGap, webMethods IS, MWS, Cisco Call Studio, Oracle MapViewer, Spring, OC4J, Struts, WebSphere, Web Services, SVN, PVCS, CVS, Git, UML, MS Office, Access, Visio, Dreamweaver, PHP, Linux/Unix, Mac OS X, and lately, Python/Django & Swift Please contact me at [michael@smartwaredesign.com](mailto:michael@smartwaredesign.com) for help with your WordPress website or mobile application development needs. I'm available for consultation and can be booked through my website at [smartwaredesign.com](http://smartwaredesign.com/) to solve your technical concerns.

Freelance Ext.js 5 developers - Maurizio M.
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Maurizio M.

Vetted Ext.js 5 developer in the United States (UTC-7)

With a deep background in computational biology, AI, and large-scale data systems, I've spent my career at the intersection of genomics and machine learning. I’m here to help others navigate and excel in this evolving landscape.

Freelance Ext.js 5 developers - Fei Z.
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Fei Z.

Vetted Ext.js 5 developer in Canada (UTC-7)

1. Industrial experience in developing data platforms. 2. Various development experiences on front-end, back-end, DevOps, data engineering, etc. 3. Solid knowledge of Java, JavaScript, React.js, Spark, etc. 4. Academic background in algorithms, data structure, machine learning, natural language processing, etc. 5. Prudent, diligent, detail-oriented, willing to take ownership.

Freelance Ext.js 5 developers - Arbi D.
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Arbi D.

Vetted Ext.js 5 developer in the United States (UTC-7)

Seasoned iOS Engineer with 10+ years of experience in mobile architecture and a strong track record of contributing to high-impact features. Skilled in driving end-to-end development and performance optimization . Actively seeking a Senior Engineer or Individual Contributor role to leverage expertise in building scalable, high-quality iOS applications. I love the idea of Rapid Application Development and have followed it through out my career as a software developer. I am an expert iOS application development with over 13 years of experience. I am highly talented and skilled in problem solving and understanding complex and large code base. I love working with: ⭐ C++ ⭐ iOS application development (iPhone, iPad, iWatch, tvOS) ⭐ JavaScript ⭐ Swift /ObjC/React Native/Flutter ⭐ SwiftUI and PYTHON Let me help you get unstuck in your coding project dealing with iOS , Swift, SwiftUI using Autolayout, or complex logic that you cannot understand. I am expert in all design pattern including using Combine, RXSwift, MVVM, MVC, and using CoreData. I also am expert in C++, Javascript, React. and building iOS mobile application.

Ext.js 5 developers developer - Arbi D.'s portfolio image
Ext.js 5 developers developer - Arbi D.'s portfolio image
Ext.js 5 developers developer - Arbi D.'s portfolio image
Freelance Ext.js 5 developers - Kalyan K.
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Kalyan K.

Vetted Ext.js 5 developer in the United States (UTC-6)

I have worked on different domains building enterprise level applications, domains involving ECOMM , media, network systems, insurance finance etc. One of the primary reasons I chose contracting, to gain different domain knowledge and usage of different technologies in software system's. This experience helped me to build business objectives fluidly.

Freelance Ext.js 5 developers - Marcelo M.
Marcelo M.

Ext.js 5 developer in Brazil (UTC-3)

With over fifteen years of experience in Java Development, I bring robust software analysis and implementation skills. My background includes key roles in architecture projects at SERPRO, proficiency in agile methodologies, and a wide range of technologies. I joined Motion Industries' global application support team, where I contributed to the maintenance of complex supply chain systems. I am well-equipped to tackle complex software challenges with diverse experience at companies like Stefanini Group and Stere Inc. Experience in Java EE, Spring Boot, JAXB, PostgreSQL, Oracle, MySQL, MSSQL, Git, GitLab, Docker, Kubernetes, Microservices, AWS Cloud Practitioner Certificated, REST APIs, JPA, Rally Project Manager, Security (encryption and authentication), JWT, JUnit, Mockito, HTML, CSS, SCSS, LESS, Ionic Framework 5, Firebase.

Freelance Ext.js 5 developers - dinesh D.
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dinesh D.

Vetted Ext.js 5 developer in the United States (UTC-5)

A passionate iOS Engineer with 9 years of experience who has gained expertise in modernizing legacy apps from monolithic, obj-c and older technologies to a modular MVVM component architecture with protocol-oriented programming, automation, and test-driven development with latest technology stack like Swift 5.0, SwiftUI, Combine, GraphQL/REST web services and Async/Await. Experience with data persistence using Core Data, SQLite, User Defaults, File System, Plist files, Firebase, and Realm. Working Experience in Apple’s Frameworks such as UIKIT, MAPKIT, Core Location, Health Kit, CoreML, SwiftUI, iBeacons, BLE, ARKIT and AVKIT etc. Familiarity in writing Unit and UI test cases before submitting the PR. Working Experience on and Push notifications, App Auth, SSO, Backbase, Arxon for the financial domains. Working experience on Submitting the Applications to App Store via iTunes Connect. Good Working experience on RESTful API Integration and reflect the UI with data on Screens. Version control proficiency using GitHub, Bitbucket, Source tree, GitHub Desktop and terminal. Worked on CI/CD with Fastlane, Jenkins and uploading to the Apple App Store for approval. Expertise in user-friendly design, code optimization, performance improvement, code refactoring, continuous integration and deployment, and unit testing. Worked on tuning the applications for memory leaks, allocations, time profiler, profile Analysis, etc., to improve memory management, and device performance, and lower the CPU Usage and battery consumption while using an application, with the help of XCode developer tool Instruments. Proficiency with memory management –

Freelance Ext.js 5 developers - Bradley W.
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Bradley W.

Vetted Ext.js 5 developer in the United States (UTC-4)

I am a Senior Software Engineer with experience in redesigning critical ETL services, leading deployments, conducting code reviews, and developing applications for various clients and projects. My expertise includes a range of technologies and concepts.

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Why clients hire Ext.js 5 developers with Arc

Without Arc by my side, I would be wasting a lot of time looking for and vetting talent. I'm not having to start a new talent search from scratch. Instead, I’m able to leverage the talent pool that Arc has created.
Mitchum Owen
Mitchum Owen
President of Milo Digital
The process of filling our position took less than a week and they found us a superstar. They've had the flexibility to meet our specific needs every step of the way and their customer service has been top-notch since day one.
Matt Gysel
Matt Gysel
Finance & Strategy at BaseVenture
The biggest advantage and benefit of working with Arc is the tremendous reduction in time spent sourcing quality candidates. We’re able to identify the talent in a matter of days.
Philip Tsai
Philip Tsai
Director of Engineering at Chegg

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FAQs

Why hire an Ext.js 5 developer?

In today’s world, most companies have code-based needs that require developers to help build and maintain. For instance, if your business has a website or an app, you’ll need to keep it updated to ensure you continue to provide positive user experiences. At times, you may even need to revamp your website or app. This is where hiring a developer becomes crucial.

Depending on the stage and scale of your product and services, you may need to hire an Ext.js 5 developer, multiple engineers, or even a full remote developer team to help keep your business running. If you’re a startup or a company running a website, your product will likely grow out of its original skeletal structure. Hiring full-time remote Ext.js 5 developers can help keep your website up-to-date.

How do I hire Ext.js 5 developers?

To hire an Ext.js 5 developer, you need to go through a hiring process of defining your needs, posting a job description, screening resumes, conducting interviews, testing candidates’ skills, checking references, and making an offer.

Arc offers three services to help you hire Ext.js 5 developers effectively and efficiently. Hire full-time Ext.js 5 developers from a vetted candidates pool, with new options every two weeks, and pay through prepaid packages or per hire. Alternatively, hire the top 2.3% of expert freelance Ext.js 5 developers in 72 hours, with weekly payments.

If you’re not ready to commit to the paid plans, our free job posting service is for you. By posting your job on Arc, you can reach up to 450,000 developers around the world. With that said, the free plan will not give you access to pre-vetted Ext.js 5 developers.

Furthermore, we’ve partnered with compliance and payroll platforms Deel and Remote to make paperwork and hiring across borders easier. This way, you can focus on finding the right Ext.js 5 developers for your company, and let Arc handle the logistics.

Where do I hire the best remote Ext.js 5 developers?

There are two types of platforms you can hire Ext.js 5 developers from: general and niche marketplaces. General platforms like Upwork, Fiverr, and Gigster offer a variety of non-vetted talents unlimited to developers. While you can find Ext.js 5 developers on general platforms, top tech talents generally avoid general marketplaces in order to escape bidding wars.

If you’re looking to hire the best remote Ext.js 5 developers, consider niche platforms like Arc that naturally attract and carefully vet their Ext.js 5 developers for hire. This way, you’ll save time and related hiring costs by only interviewing the most suitable remote Ext.js 5 developers.

Some factors to consider when you hire Ext.js 5 developers include the platform’s specialty, developer’s geographical location, and the service’s customer support. Depending on your hiring budget, you may also want to compare the pricing and fee structure.

Make sure to list out all of the important factors when you compare and decide on which remote developer job board and platform to use to find Ext.js 5 developers for hire.

How do I write an Ext.js 5 developer job description?

Writing a good Ext.js 5 developer job description is crucial in helping you hire Ext.js 5 developers that your company needs. A job description’s key elements include a clear job title, a brief company overview, a summary of the role, the required duties and responsibilities, and necessary and preferred experience. To attract top talent, it's also helpful to list other perks and benefits, such as flexible hours and health coverage.

Crafting a compelling job title is critical as it's the first thing that job seekers see. It should offer enough information to grab their attention and include details on the seniority level, type, and area or sub-field of the position.

Your company description should succinctly outline what makes your company unique to compete with other potential employers. The role summary for your remote Ext.js 5 developer should be concise and read like an elevator pitch for the position, while the duties and responsibilities should be outlined using bullet points that cover daily activities, tech stacks, tools, and processes used.

For a comprehensive guide on how to write an attractive job description to help you hire Ext.js 5 developers, read our Engineer Job Description Guide & Templates.

What skills should I look for in an Ext.js 5 developer?

The top five technical skills Ext.js 5 developers should possess include proficiency in programming languages, understanding data structures and algorithms, experience with databases, familiarity with version control systems, and knowledge of testing and debugging.

Meanwhile, the top five soft skills are communication, problem-solving, time management, attention to detail, and adaptability. Effective communication is essential for coordinating with clients and team members, while problem-solving skills enable Ext.js 5 developers to analyze issues and come up with effective solutions. Time management skills are important to ensure projects are completed on schedule, while attention to detail helps to catch and correct issues before they become bigger problems. Finally, adaptability is crucial for Ext.js 5 developers to keep up with evolving technology and requirements.

What kinds of Ext.js 5 developers are available for hire through Arc?

You can find a variety of Ext.js 5 developers for hire on Arc! At Arc, you can hire on a freelance, full-time, part-time, or contract-to-hire basis. For freelance Ext.js 5 developers, Arc matches you with the right senior developer in roughly 72 hours. As for full-time remote Ext.js 5 developers for hire, you can expect to make a successful hire in 14 days. To extend a freelance engagement to a full-time hire, a contract-to-hire fee will apply.

In addition to a variety of engagement types, Arc also offers a wide range of developers located in different geographical locations, such as Latin America and Eastern Europe. Depending on your needs, Arc offers a global network of skilled engineers in various different time zones and countries for you to choose from.

Lastly, our remote-ready Ext.js 5 developers for hire are all mid-level and senior-level professionals. They are ready to start coding straight away, anytime, anywhere.

Why is Arc the best choice for hiring Ext.js 5 developers?

Arc is trusted by hundreds of startups and tech companies around the world, and we’ve matched thousands of skilled Ext.js 5 developers with both freelance and full-time jobs. We’ve successfully helped Silicon Valley startups and larger tech companies like Spotify and Automattic hire Ext.js 5 developers.

Every Ext.js 5 developer for hire in our network goes through a vetting process to verify their communication abilities, remote work readiness, and technical skills. Additionally, HireAI, our GPT-4-powered AI recruiter, enables you to get instant candidate matches without searching and screening.

Not only can you expect to find the most qualified Ext.js 5 developer on Arc, but you can also count on your account manager and the support team to make each hire a success. Enjoy a streamlined hiring experience with Arc, where we provide you with the developer you need, and take care of the logistics so you don’t need to.

How does Arc vet a Ext.js 5 developer's skills?

Arc has a rigorous and transparent vetting process for all types of developers. To become a vetted Ext.js 5 developer for hire on Arc, developers must pass a profile screening, complete a behavioral interview, and pass a technical interview or pair programming.

While Arc has a strict vetting process for its verified Ext.js 5 developers, if you’re using Arc’s free job posting plan, you will only have access to non-vetted developers. If you’re using Arc to hire Ext.js 5 developers, you can rest assured that all remote Ext.js 5 developers have been thoroughly vetted for the high-caliber communication and technical skills you need in a successful hire.

How long does it take to find Ext.js 5 developers on Arc?

Arc pre-screens all of our remote Ext.js 5 developers before we present them to you. As such, all the remote Ext.js 5 developers you see on your Arc dashboard are interview-ready candidates who make up the top 2% of applicants who pass our technical and communication assessment. You can expect the interview process to happen within days of posting your jobs to 450,000 candidates. You can also expect to hire a freelance Ext.js 5 developer in 72 hours, or find a full-time Ext.js 5 developer that fits your company’s needs in 14 days.

Here’s a quote from Philip, the Director of Engineering at Chegg:

“The biggest advantage and benefit of working with Arc is the tremendous reduction in time spent sourcing quality candidates. We’re able to identify the talent in a matter of days.”

Find out more about how Arc successfully helped our partners in hiring remote Ext.js 5 developers.

How much does a freelance Ext.js 5 developer charge per hour?

Depending on the freelance developer job board you use, freelance remote Ext.js 5 developers' hourly rates can vary drastically. For instance, if you're looking on general marketplaces like Upwork and Fiverr, you can find Ext.js 5 developers for hire at as low as $10 per hour. However, high-quality freelance developers often avoid general freelance platforms like Fiverr to avoid the bidding wars.

When you hire Ext.js 5 developers through Arc, they typically charge between $60-100+/hour (USD). To get a better understanding of contract costs, check out our freelance developer rate explorer.

How much does it cost to hire a full time Ext.js 5 developer?

According to the U.S. Bureau of Labor Statistics, the medium annual wage for developers in the U.S. was $120,730 in May 2021. What this amounts to is around $70-100 per hour. Note that this does not include the direct cost of hiring, which totals to about $4000 per new recruit, according to Glassdoor.

Your remote Ext.js 5 developer’s annual salary may differ dramatically depending on their years of experience, related technical skills, education, and country of residence. For instance, if the developer is located in Eastern Europe or Latin America, the hourly rate for developers will be around $75-95 per hour.

For more frequently asked questions on hiring Ext.js 5 developers, check out our FAQs page.

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