Sr. Ajax Developer
Role opened: 15 hours ago
Belen A.
Vetted ✓
98% match95% match93% match
Back-end
·
Asunción
Paraguay
·
Eastern Timezone + 1
Node.js|NestJS|PostgreSQL
View →
Bruno S.
Vetted ✓
98% match95% match93% match
Data
·
Lima
Peru
·
Eastern Timezone
Python|SQL|Spark
View →
Camila H.
Vetted ✓
98% match95% match93% match
Data
·
Lima
Peru
·
Eastern Timezone
Python|PyTorch|RAG
View →
NEARSHORE TALENT PLATFORM FOR THE AI ERA

Hire the best Ajax developers in Latin America

LatAm's largest tech talent network of 400K+ vetted developers
Payroll, benefits, taxes & compliance handled in 18 countries
Get an expert-curated shortlist of candidates in 48 hours
Only pay if you hire. 14-day risk-free trial.
G2 badge: Leader, Summer 2026
★★★★
4.7 OUT OF 5
2,500+ COMPANIES USE REVELO TO SCALE THEIR ENGINEERING CAPACITY

400k+

VETTED SOFTWARE
ENGINEERS

14 days

average time
to hire

100+

TECHNOLOGIES
COVERED

30-50%

savings over
US hires

Why hire Ajax developers through Revelo?

Rigorously vetted senior developers from Latin America who work in your timezone, ready to contribute from day one.

Interview only the best Ajax developers

A shortlist of three to five pre-vetted candidates, hand-picked by in-market recruiters. You decide who to interview, you decide who to hire.

Developer reviewing code at a monitor
Shortlist
Sr. Ajax Developer
Ramon A.
Ramon A.
Luana R.
Luana R.
Thiago S.
Thiago S.

One platform for talent, payroll, taxes and compliance

Your team runs legally across 18 countries in Latin America. Manage your engineers without managing the infrastructure underneath them.

Calculator on a desk
Camila R.
Camila R.
$9,200
Ricardo N.
Ricardo N.
$8,000
Gonzalo C.
Gonzalo C.
$7,400
Payroll
PAID
$24,400

Local recruiting experts invested in your hire

In-market recruiters and account managers cover sourcing, offer strategy, and onboarding. They stay with you until your engineer is up and running.

Recruiter on a video call
Gonzalo C., senior developer
Gonzalo C.
Sr. Ajax Developer
onboarding

Your team, your terms

Month-to-month engagements mean you're never locked into headcount you don't need. Scale up for a big push, pull back after launch.

Developer working on a bean bag
My Team
Camila R.Luana R.Gonzalo C.Thiago S.
Ricardo N.
Ricardo N.
Sr. Ajax Developer
add engineer

Software developer salaries in

Annual gross compensation in USD. Bands reflect Revelo placements and public market data.

Tech hubs in

Where the engineering talent concentrates, and what each city is known for.

Hire in

Employment law in

Revelo handles this for you
Payroll, benefits, taxes, and statutory obligations are covered by our PEO infrastructure. You never file in yourself.

at a glance

Explore more tech talent hubs in Latin America

Compare talent depth and cost across our other nearshore hubs.

Hire the top 1% of developers in Latin America

Hire vetted senior developers, matched to your stack, your timezone, and your budget.

Hire Ajax developers
Client testimonial profile photo
Dario P.
Vetted ✓
Fullstack Developer
·
Colombia
Checkmark icon
8 years
of experience
Chat bubble icon
Fluent in English
Client testimonial profile photo
Miguel F.
Vetted ✓
Fullstack Developer
·
Mexico
Checkmark icon
7 years
of experience
Chat bubble icon
Fluent in English
Client testimonial profile photo
Kimberly G.
Vetted ✓
Fullstack Developer
·
Brazil
Checkmark icon
7 years
of experience
Chat bubble icon
Fluent in English
Client testimonial profile photo
Karina M.
Vetted ✓
Fullstack Developer
·
Brazil
Checkmark icon
7 years
of experience
Chat bubble icon
Fluent in English
Client testimonial profile photo
Elena G.
Vetted ✓
Salesforce Engineer
·
Mexico
Checkmark icon
6 years
of experience
Chat bubble icon
Fluent in English
Client testimonial profile photo
Arthur F.
Vetted ✓
Fullstack Developer
·
Brazil
Checkmark icon
11 years
of experience
Chat bubble icon
Fluent in English
Client testimonial profile photo
Cesar R.
Vetted ✓
Fullstack Developer
·
Colombia
Checkmark icon
11 years
of experience
Chat bubble icon
Fluent in English
Client testimonial profile photo
Santino N.
Vetted ✓
Fullstack Developer
·
Argentina
Checkmark icon
11 years
of experience
Chat bubble icon
Fluent in English

Hire Ajax developers in 4 simple steps

Get from "we need someone" to your first day together in weeks, not months.

1
Share your requirements
Day 1

Tell us what you're building and what kind of Ajax developers you need: skills, experience level, team dynamics.

2
Get a vetted shortlist
Within 72h

Three to five matched, pre-vetted candidates: identity-checked, skills-tested, human-screened. No wading through hundreds of profiles.

3
Interview your favorites
Week 1

Run your own technical interviews. You decide who to interview and who to hire. Full control, no gatekeeping.

4
Hire and onboard
Week 2

Make the offer. Revelo handles payroll, benefits, taxes, and compliance so you can focus on building. Your engineer ships code from day one.

10+ years making it easier to hire elite nearshore Ajax developers

Interview pre-vetted candidates who are fluent in English and work in your timezone.

Start hiring
Man with glasses and beard smiling while sitting in a blue chair.

Why hire developers based in Latin America?

Quick time-to-hire
Get a shortlist within 3 days and hire in as fast as 2 weeks, instead of the 3+ months a US senior search typically takes.
Top-quality developers
Rigorously vetted for technical and soft skills, expertly hand-picked for your needs from a 400K+ network.
Budget efficiency
Save 30-50% over comparable US hires, and cut the overhead of sourcing, hiring, and talent management.
Time zone alignment
Same hours, same language

Work synchronously with Ajax developers in the same or overlapping US time zones. Real-time collaboration, no async tax.

Mexico City
1:00 PM
Bogotá
2:00 PM
São Paulo
4:00 PM

What are Ajax developers?

Why hire Ajax developers?

What does it cost to hire Ajax developers?

Seniority
All-in monthly cost (USD)
Junior
$4,600 – $5,600
Mid-level
$5,800 – $7,500
Senior
$7,200 – $10,700

Why hire in Latin America?

How to evaluate Ajax developers

Why expertise matters

Benefits of working with Ajax developers

Rich web experiences are in high demand as internet users are more sophisticated than ever and expect seamless, dynamic web experiences. Gone are the days of simple HTML forms and pages where clicking a button would result in a full page refresh or a new page loading. Therefore, businesses looking to stay ahead in a highly competitive market may benefit from hiring Ajax developers.

Ajax developers specialize in asynchronous JavaScript and XML (Ajax), allowing web content to be loaded dynamically and on-demand without page refreshes. This technology can provide a supercharged user experience—enabling faster interactive content, real-time updates, and a more responsive website. Unfortunately, hiring these developers is not always easy, as is often with in-demand talent.

This article covers how to hire Ajax developers, including how to craft a compelling job description, interview questions to ask, and how Revelo can help.

What Is Ajax Development?

Ajax is a client-side web development that creates interactive and immersive user experiences. It uses a combination of HTML, CSS, JavaScript, and other technologies to develop advanced web applications that can update and change a page without a complete refresh. This development is the technology behind many modern web experiences, such as real-time notifications and interactive content loading.

Examples of projects that may require Ajax development include the following:

  • Content management systems (CMS)
  • E-commerce websites
  • Social media sites and applications
  • Real-time collaboration tools
  • Blogs and other websites with dynamic content
  • Interactive web applications
  • Mobile applications
  • Chat systems
  • Real-time data visualization
  • Dynamic search and filtering
  • Forms with real-time validation and feedback

What Does an Ajax Developer Do?

The overall goal of an Ajax developer is to create a smooth user experience by using asynchronous JavaScript and other technologies to develop web applications. While this is the general goal, day-to-day tasks and responsibilities will vary depending on your project and company.

Some typical duties you can expect Ajax developers to handle include the following:

  • Writing code to create a dynamic, interactive user interface
  • Developing web applications with Ajax technologies
  • Integrating data from back-end services and databases
  • Testing and debugging web applications
  • Creating user interface elements such as forms, menus, and data visualization tools
  • Optimizing code for speed and scalability
  • Developing security measures to protect web applications
  • Collaborating with front-end developers and other members of the development team on project tasks
  • Maintaining and improving existing web applications

Ajax Developer Salary

According to Glassdoor figures, the average annual salary for a mid-level Ajax developer with four to six years of experience in the U.S. is around $83,500. This figure may, however, vary based on location, the scope of a project, the size of your company, and the industry you’re hiring in.

In Latin American countries, Ajax developers typically earn 30% to 50% less than their U.S. counterparts despite their similar skillset. This is due to the lower cost of living in this region. Revelo provides a cost-effective solution by connecting you with highly qualified, pre-vetted Latin American developers.

How to Write a Job Description for Ajax Developers

An effective and attractive job description is imperative to hiring Ajax developers who fit your business. It should communicate to candidates what it’s like to work with your company, what skills you’re looking for, and what the position entails. Therefore, you must first determine what type of Ajax developer you need — junior, mid-, or senior-level. Base this decision on the degree of complexity and responsibility of the projects you'll assign them.

Once you've determined your project's desired experience level, you can start writing your job description. Keep it concise and include the following elements:

  • Project overview: You should include relevant information regarding the project, such as its complexity and timeline. This way, applicants can assess if it’s the right fit.
  • Responsibilities and duties: You must list the specific job duties and responsibilities, so applicants know what to expect and can decide whether they have the skills necessary for the role.
  • Educational requirements: Specify any educational requirements you require from applicants

Frequently asked questions

Everything you need to know about hiring Ajax developers through Revelo.

How much does it cost to hire Ajax developers through Revelo?

All-in monthly costs run roughly $4,600–$5,600 for junior, $5,800–$7,500 for mid-level, and $7,200–$10,700 for senior developers: engineer compensation, PEO coverage, and Revelo's margin combined. No placement fee, no surprise invoices.

How quickly can I hire Ajax developers through Revelo?

You'll see a curated shortlist of matched, pre-vetted candidates within 72 hours, and most companies make a hire within 14 days of sharing their requirements.

What is Revelo's vetting process for Ajax developers?

Every candidate is identity-checked, skills-tested, and human-screened: technical assessments matched to their stack, soft-skills and English-fluency interviews, and review by in-market recruiting experts before they ever reach your shortlist.

What engagement models does Revelo offer for Ajax developers?

Month-to-month, full-time engagements, with no long-term lock-in. Scale up for a big push or pull back after launch as your roadmap evolves, with a 14-day risk-free trial on every hire.

What happens after I hire Ajax developers through Revelo?

Revelo handles payroll, benefits, taxes, and compliance across 18 countries, and your dedicated account manager stays with you through onboarding and beyond. Your engineer ships code from day one.

Our Ajax developers know these tech stacks and more

Our talent is experienced in these libraries, APIs, platforms, frameworks, and databases.

Libraries
Frameworks
Facebook API | Instagram API | YouTube API | Spotify API | Apple Music API | Google API | Jira REST API | GitHub API | SoundCloud API
APIs
Amazon Web Services (AWS) | Google Cloud Platform (GCP) | Linux | Docker | Heroku | Firebase | Digital Ocean | Oracle | Kubernetes | Dapr | Azure | AWS Lambda | Redux
Platforms
Databases
MongoDB | PostgreSQL | MySQL | Redis | SQLite | MariaDB | Microsoft SQL Server

Ready to hire Ajax developers?

See a curated shortlist of pre-vetted candidates in 72 hours. Only pay if you hire.