Hire the Top 3% of Freelance Avaya Developers

Toptal is a marketplace for dedicated Avaya developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Avaya freelancers for their mission-critical Avaya development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Avaya Developers and Engineers

Hashemi Salah-Uddin

Freelance Avaya Developer
United KingdomToptal Member Since October 12, 2021

Hashemi is a multi-cloud disciplined cyber security architect with 15+ years of experience improving security posture by innovating secure solutions aligned with organizational strategies. He owns cloud threat landscape deep knowledge and knows how to mitigate technical designs for Cloud IaaS, PaaS, and SaaS services harnessing DevSecOps practices. Hashemi has a record of identifying cyber threats and transforming both mindsets and business processes to accelerate public cloud adoption securely.

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Chirag Kamboj

Freelance Avaya Developer
IndiaToptal Member Since January 25, 2023

Chirag is an experienced professional specializing in call center configuration, administration, and maintenance. He has extensive knowledge of architectural design for call center applications and workforce optimization like Avaya POM, Avaya Aura, and Amazon Connect. Chirag has specialized in using the Avaya suite to implement systems to meet the needs of his clients. This includes the Avaya PABX telephony system, Avaya Communication Manager, Avaya One-X Agent, ACCCM, VDN, and Vector.

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Khalil Ahmed Mangi

Freelance Avaya Developer
PakistanToptal Member Since April 6, 2023

Khalil is a senior software and web developer proficient in VoiceXML and software applications with over 23 years of experience. He has six years of experience with VoiceXML applications using Core Java, Avaya Orchestration Designer, and Avaya Aura Experience Portal. Khalil specializes in Avaya solutions such as IVR and POM. He has strong data analysis skills and has worked with REST or SOAP-based web services, MS SQL, MySQL, MariaDB, and Oracle Database.

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Md Nazim Uddin

Freelance Avaya Developer
MalaysiaToptal Member Since January 26, 2023

Nazim is a contact center architect and developer with 15+ years of experience as a consultant, customer representative, and freelancer, building solutions for clients around the world. Specialized in contact centers, he is astute in new technologies, an excellent team player, and an effective customer representative when dealing with complex system implementations or critical issues. Nazim is an expert in call centers and omnichannel platforms like Avaya, Genesys, Amazon Connect, and Twilio.

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Ivan Kukushkin

Freelance Avaya Developer
TurkeyToptal Member Since April 5, 2023

Ivan is a senior software engineer with 8+ years of experience in the contact center industry. Throughout his career, he has updated 16 centers, created an AI voice assistant, and developed 18 IVR applications. Ivan is a seasoned developer passionate about innovative solutions with strong decision-making and collaboration skills and the ability to contribute and drive positive change in organizations.

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Taran Chandyok

Freelance Avaya Developer
CanadaToptal Member Since December 16, 2022

Taran is a telephony and networking professional with over nine years of experience. Some of his experience is with unified communications, and he is CCNA, ACIS, and ACSS certified. Taran has led several contact center optimization projects and has designed advanced cloud contact center solutions. Some of his experience includes engineering, Omnichannel marketing, chat, email, dialers, fax, SMS, chatbots, and utilizing SecurePay.

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Qais Suliman

Freelance Avaya Developer
JordanToptal Member Since April 21, 2023

Qais is an infrastructure specialist with five years of experience in VoIP and implementation. He has worked as a support engineer in charge of everything from IP telephony, contact center projects, installations, and implementations, to upgrades, testing, support, administration, and maintenance. Qais has worked with the Arab Bank to implement a centralized contact center solution for seven countries in the Arab League and looks forward to taking on new challenging projects.

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Cserbák Márton

Freelance Avaya Developer
HungaryToptal Member Since July 10, 2020

Márton is an experienced software engineer focused on process improvement to increase development velocity by evangelizing modern software development best practices to teams, such as automation, CD, and GitOps. He excels at understanding large-scale complex architectures (telecommunications systems and big data back-end solutions), has delivered highly-innovative well-tested VoIP solutions, acted as test architect, and has led functional and non-functional testing and tool development.

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Mark Kercso

Freelance Avaya Developer
United KingdomToptal Member Since October 16, 2016

Mark has six years of professional development experience—mostly in the C++, Perl, JavaScript, and Ruby. He has worked on a wide range of projects from telecommunications through game development and computer security to static analysis.

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Stanislav Yaranov

Freelance Avaya Developer
RussiaToptal Member Since August 21, 2017

Stanislav is a software developer experienced in C++, PHP, JavaScript, Node.js web development, and database development with PostgreSQL. He prefers to keep his code clean, his solutions maintainable, and use TDD for development. He likes solving challenging tasks and will always find a solution even if it looks impossible.

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Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
Creating an app for the game
Conor Kenney
Creating an app for the game
Leading a digital transformation
Elmar Platzer
Leading a digital transformation
Building a cross-platform app to be used worldwide
Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
Drilling into real-time data creates an industry game changer
Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a startup, they are our secret weapon.

Brantley Pace

CEO & Co-Founder

I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.

Paul Fenley


The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

Ryan Rockefeller


Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.

Jason Kulik


As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

Stuart Pocknee


How to Hire Avaya Developers Through Toptal


Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.

Work With Hand-Selected Talent

Within days, we'll introduce you to the right Avaya developer for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

Work with your new Avaya developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.


  • How are Toptal Avaya developers different?

    At Toptal, we thoroughly screen our Avaya developers to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

  • Can I hire Avaya developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with an Avaya developer within 48 hours of signing up.

  • What is the no-risk trial period for Toptal Avaya developers?

    We make sure that each engagement between you and your Avaya developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire talent within 48 hours and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Top Avaya Developers Are in High Demand.

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