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Find jobsImprove your website’s responsiveness with expert Ajax developers. Build dynamic, real-time features—hire now and onboard quickly.
Alejandro is a hands-on SRE/DevOps engineer with over 15 years in the industry and solid experience in Kubernetes, AWS, observability, and incident troubleshooting. He has worked on monitoring and cost-optimization initiatives, including reducing reliance on New Relic with Prometheus and Grafana. He is practical, calm under pressure, and comfortable handling production issues in collaborative team environments.
Meet Kate, an experienced full-stack web developer (back-end heavy) with a flair for solution architecturing and deep knowledge of C# and .NET Core. She can find a way to solve any task creatively and appreciates good teamwork. Kate always tries to be up-to-date with the latest tech trends, and she’s among the first ones to start using the updated version of .Net. Also, it's worth mentioning that Kate is a super client-oriented dev. Besides coding, she loves Scandinavian mythology and painting miniatures.
David is a Middle to Senior full-stack engineer with 16 years of experience, specializing in Svelte, React, and TypeScript. He demonstrates solid architectural skills in SvelteKit, practical Node.js knowledge, and a clear focus on UI and product-facing features. He is best suited for front-end heavy or balanced full-stack roles with mentoring on backend complexity!
Luis is a Senior full-stack engineer with strong expertise in Node.js, React, and TypeScript, complemented by solid backend experience using Nest.js, GraphQL, and SQL/NoSQL databases. He has led teams and delivered scalable systems for large-scale applications, demonstrating clear communication, ownership, and a pragmatic, delivery-focused mindset during our vetting process. His code quality, architectural understanding, and problem-solving skills are consistently highlighted, with minor gaps in advanced TypeScript theory. Luis is fluent in English and comfortable with both frontend and backend leadership roles!
Edvinas is a senior backend engineer with over 15 years of experience specializing in PHP/Symfony, Node.js, AWS, and distributed systems. He has strong architectural ownership, practical problem-solving skills, and expertise in event-driven microservices, serverless platforms, and backend optimization for high-scale applications. His strengths include backend architecture, security, clear communication, Python, and mentoring. He is well suited for senior backend roles requiring autonomy, architectural leadership, and direct client engagement.
As a strong senior full-stack developer, Denis brings nearly ten years of experience to the industry. Specializing in React and Next.js, he is fluent in TypeScript and JavaScript. Denis has extensive expertise in building MVPs and implementing business logic, consistently contributing to the successful launch of web products. His proficiency in creating project architecture makes him an excellent addition to any web development team.
Oleksandr is a seasoned engineer with over 11 years of experience, showing a clear professional growth from a strong PHP background to deep expertise in modern JavaScript ecosystems and Blockchain technology. He has hands-on experience integrating advanced AI models to address complex business challenges and a proven track record of successfully delivered Blockchain projects, including custom Chrome extensions. Oles has designed and built scalable, real-time server architectures using Feathers.js and Socket.io, and developed high-performance front-end applications with Next.js, Lit, and vanilla JavaScript. His skill set also spans DevOps — containerization with Docker and Kubernetes, infrastructure management with Cloudflare, and CI/CD pipeline setup. In recent years, Oles has contributed to both remote and in-house teams, mentoring junior developers and driving projects toward ambitious goals.
Danyl is a senior front-end developer specializing in both web and mobile apps, with expertise in React and React Native. He manages full-cycle design tasks, handling everything from conception to completion while collaborating closely with project stakeholders. Danyl's experience includes serving as Head of Development, where he collected, defined, and translated user requirements into project designs and implementation plans. His portfolio counts projects for Toyota, Electrolux, and World Athletics.
Get Serge to start talking about the projects under his belt and get your mind blown. He has been a staple of the IT community for over fifteen years now and proved himself a clear architecture and code expert and a talented manager. Although Serge’s main passion is RoR, he also has significant DevOps skills.
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Tell us about your needs
On a quick 30-min call, share your expectations and get a budget estimate
Interview the best
Get 2-3 expertly matched candidates within 24-48 hours and meet the worthiest
Onboard the chosen one
Your developer starts with a project—we deal with a contract, monthly payouts, and what not
Reached out on Monday evening, connected Tuesday morning, had four qualified candidates by Wednesday.
We had an excellent experience. Process is fast from the initial intake through setting up payment.
The developers helped us speed up. They quickly learned their part of the app and we’re grateful for their contribution.
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All our developers are fully vetted and tested for both soft and hard skills. No surprises!
Learn your needs
On a quick 30-min call, share your expectations and get a budget estimate
Shortlist the best matches
Get 2-3 expertly matched candidates within 24-48 hours and meet the worthiest
Handle the paperwork
Your developer starts with a project—we deal with a contract, monthly payouts, and what not
The lemon tea
Find devs with skills you can trust with Lemon.io, so you can stop looking and start making progress again.
Cost
Every one of our 1300+ senior engineers has passed through our four-step vetting process, covering everything from soft to hard skills.
White-glove Service
We provide you with a list of senior devs just 48 hours after you tell us what skills you're looking for, allowing you to hire devs faster so you can get moving again.
CV Database
Our risk-free replacement guarantee comes without caveats, restrictions, or questions asked. If you want a different dev, just tell us and we'll match you with another, free of charge.
Why hire AJAX
High-quality web apps
AJAX's modular approach lets devs reuse components, so they can seamlessly manage app complexity.
Faster development process
AJAX's architecture and a vast library of pre-built components speed up development, so you can get to market sooner.
Enjoyable user experience
From smooth, responsive interfaces to reduced loading times, devs can use AJAX to boost usability.
Scaling made easy
AJAX's modular, component-based architecture makes it easy to scale applications as traffic grows.
The experience with Lemon.io has been fantastic. The interview process has been good, the caliber of people – excellent and integration has been very smooth.
We needed extra developers to clean off all these bugs so the company could skyrocket.
We needed extra AI engineers to keep our ambitious project running.
AJAX calls are made by JavaScript front-end applications to address the back-end services and APIs and to get data from the HTTP server.
Indeed, AJAX is still in use and very popular in 2024. It helps a web browser communicate through a server for quick and asynchronous responses due to user interactions without refreshing a full page. On top of that, being the main part of building interactive web applications, where the data is fetched, updated, or submitted in the background to the user, it improves user experience, reducing latency, and enhancing efficiency.
AJAX is ideal for developing complex web applications. It lets web pages be updated in the background without the complete web page reloading through sending and receiving a small amount of data from the server at a time. Thus, it provides a more efficient and faster experience.
AJAX stands for Asynchronous JavaScript and XML.
A good real-life case of AJAX is Google’s search bar. As you type, similar searches appear below, and you can scroll through them with the up and down keys. Autocomplete helps users filter inputs when filling in forms or searching. This makes searches quicker and more fun because users get results immediately.
If you are thinking about hiring an AJAX developer, there are a few steps you need to consider first:
1) Define your project scope, its features, functionalities, and objectives.
2) Define roles and responsibilities.
3) Search for a developer on freelance platforms, job boards, etc. If you need a quick solution, Lemon.io can match you with a skilled professional within 48 hours.
4) Screen their CV and portfolio. Target candidates who have strong skills in JavaScript, AJAX techniques like XMLHttpRequest or fetch API, knowledge of asynchronous programming, experience with front-end frameworks like React or Vue.js, and a portfolio reflecting the practical application of dynamic web applications.
5) Conduct soft skills and hard skills interviews.
6) Check references.
7) Make an offer and onboard the candidate.
You can hire an AJAX developer through Lemon.io in 48 hours. All the developers have already passed our vetting process, including VideoAsk, their me.lemon profile completion, a screening call with our recruiters including various technical questions, and a technical interview with our developers. We will ensure a fast and comfortable hiring process while matching you with the best AJAX developers in the industry, as only 1% of applicants are accepted into our community.
Lemon.io provides up to 20 prepaid risk-free hours with our AJAX developer to review how they complete real tasks on your projects. Otherwise, it is a zero-risk replacement guarantee: if the previous developer doesn’t meet your expectations or misses deadlines, we will find a new one for your project.
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