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Experienced VoIP Coders, Consultants for Hire in Ukraine

VoIP stands for Voice Over Internet Protocol, or in more common terms phone service over the Internet. VoIP is available in a wide range of services. Some free VoIP services require all parties to be at their computers to make or receive calls while others let you call from a cell phone to any other phone. You can get phone service delivered through your Internet connection instead of from your local phone company if you have a broadband Internet connection, plus a traditional phone and an adapter, a VoIP-enabled phone, or VoIP software on your computer. VoIP and unified communications allow reducing the phone charges, getting a single network for voice and data, accessing your phone system’s features anywhere you have a broadband connection. The function of turning analog phone signals into digital ones that can be sent over the Internet can either be included into the phone itself or in a separate box like an ATA, but it’s also possible to directly connect to another VOIP user. There are two main reasons to use VOIP – lower cost and increased functionality. Skype, eVoice, Vonage are examples of VoIP providers.

VoIP Development Services

VoIP Development Services in Ukraine

Need a VoIP programmer for your idea? You definitely came to the right provider. “EchoUA” presents IT staffing services and project based coding. We pleasantly help you to get the relevant worker or a team for remote work. All our coders are accomplished experts skilled in developing specially made applications using the up-to-date technologies, including VOIP, Cassandra, ASP.NET, Scala, Protractor, Groovy, Matlab, Shopify, Neo4j, Spark, Plone. You can also hire us as a VoIP development agency and delegate full-cycle development services to us.


  • Hottest Ukrainian coders with over 3 yrs of commercial experience.
  • Personnel retention best practices to make sure your developers stay happy.
  • Professional client managers to maintain smooth communication.
  • Clear agreement with predictable bi-weekly invoicing.

We help you execute your projects by preparing reliable VoIP developers who can participate in your company and instantly start delivering high-quality service. Reach out us and examine the resumes of software engineers available for employment today. Also, you can read “VoIP Developer Salary in the US and UK compare to Ukraine” to reveal the true cost of hiring.

TOP5 VoIP Programmers in August 2018

1 Ihor V.,Age: 30, E-mail: ih*@gmail.com,
Skills: Team Lead, Android, Java, SQL, VoIP
Contact Us to Get the Full CV (ID 568284)

2 Dmytro B.,Age: 32, E-mail: di*@gmail.com,
Skills: JS, HTML/CSS, Android, C++, Cordova, VoIP
Contact Us to Get the Full CV (ID 568205)

3 Yuriy G.,Age: 27, E-mail: yu*@navaho.fr,
Skills: VoIP
Contact Us to Get the Full CV (ID 556446)

4 Vasiliy G.,Age: 25, E-mail: va*@ukr.net,
Skills: VoIP
Contact Us to Get the Full CV (ID 556444)

5 Vadim Z.,Age: 30, E-mail: z_*@hotmail.com,
Skills: JS (Node), NoSQL (MongoDB), VoIP
Contact Us to Get the Full CV (ID 556440)

The rating of VoIP coders is based on our applicant tracking system (ATS) information and updated day after day.

Questions and Answers related to VoIP Development

How do I develop an iOS app with VoIP (+ Video) functionally?

“You make use of WebRTC. Several alternatives: take the base code compile in iOS and link it with your app Have someone else do the above for you Purchase a ready made portable WebRTC SDK. Or use a WebRTC PaaS vendor do do everything – someone like Twilio or TokBox should do. My suggestion is skip any proprietary technologies, as they won’t last long and they will be more expensive in the long run…”

How do I develop SIP/VoIP in Java?

“First of all, your are mixing two totally different things: VoIP development in Java with Asterisk/OpenSIPS. Asterisk is a SIP Softswitch written in C. OpenSIPs is a SIP Proxy written in C. VoIP development in Java has many approaches: you can write a totally new softswitch to compete with Asterisk, or maybe you want to create a SIP/IAX softphone in Java, or develop VoIP services (IVRs, click to call, etc) in Java, in this case you’ll need a softswitch such as Asterisk…”

What software language(s) do programmers typically use when they build robocall/VOIP applications?

“It depends on the architecture. If the front end is a web browser, they’ll use DHTML (HTML, JavaScript & CSS), with the A/V part carried using either the new HTML5 features or by means of a Java or a browser plugin (typically programmed in C/C++). The support end is almost always a rich client, so that’ll be programmed using Java and/or C/C++…”

What would be the approximate cost and timeline to create a mobile VoIP app for iOS?

“An experienced mobile VoIP developer and a decent UI mobile developer should be able to provide you with an early alpha version within 1-2 months using open-source stack such as PJSIP. However, that’s just scratching the surface. Depending on what you’re trying to achieve, you’ll probably need to invest more resources…”

What is the best book to learn VOIP?

Top 10 VOIP Books You Should Read

Consider asking some of these questions during a job interview to assess candidate’s skills.


Big Names Using VoIP

What Fortune 500 companies are using VoIP in production among other popular technologies? A good example is Lowe’s (www.lowes.com).

Lowe’s Home Improvement | Hardware Store. Start with Lowe’s for appliances, paint, patio furniture, tools, flooring, home décor, furniture and more. Plus get free 2-day shipping with MyLowe’s.

Also, big brands use Symfony, PrestaShop, Dotnetnuke, ADO.NET, Neo4j.

Typical Programming Projects and Tasks for VoIP Developers

Looking For AWS Amplify Consultant/Trainer With Ionic 3+

Hi there, We are building an Uber like app for resturants using Ionic 4+, Angular 6+ and AWS as our backend. This is going to be a part-time consultation/training job (4-5 hours daily) for a month ... (Pakistan)

IOS Developer Needed To Fix 3 Issues With Plivo / VoIP SDK

We have 3 open issues that is preventing calls to work properly in iOS app: 1. Incoming calls do not work (outgoing calls work fine) 2. When calls do connect you can’t hear person speaking 3. We ... (United States)

Looking For Expert Twilio Api Connect With Ionic3

Looking for an experienced Twilio Api developper to connect our app developed in Ionic 3 with Twilio Api with VoIp features to connect people with Phone, Tablet or computer ... (France)

VOIP / SIP Solution Required

Requirement: VOIP / SIP Solution required. iOS and Android Development. Admin Panel Provisioning services Asterisk and XMPP required. Server and Client setup. Document Required: 1. Solution ... (India)

VoIP System Development Class 4/5 And PBX

A new VoIP company is looking people to head up its new platform development. We are looking for people with proven skill in developing a VoIP platform from the ground up. The platform needs to ... (United States)

I Need VOIP Mobile App Tester (testers) In USA Only

I need testers for VOIP mobile app in USA. You must have at least 1 smartphone - iOS or Android, connected to T-Mobile, AT&T, Verizon or Sprint. You will test mobile app by making outgoing and ... (Switzerland)

Fax To Email Software Development

We are looking for fax to email software development built for high volume commercial use. ... (United States)

VoIP Expert Needed To Develop Software To Fight IRS Scam

Problem: Every year, thousands of U.S. Citizens fall victim to the "IRS scam call". These are calls originating from India from people claiming to work for the IRS stating you owe back taxes and ... (United States)

Zendesk Expert

Hi there, Looking for a Zendesk expert please, to do the following tasks: a. Implement what works the best in Zendesk and replicate their full service delivery into our own Zendesk. We have been ... (Australia)

Single Angular Page To Make Call Via Sip Client Browser

Basically, I wanna make a single Angular page, where will get a list of contacts from a local JSON file, and start a call. The page must have a web client webRTC to connect with SIP with an Asterisk ... (Brazil)

C# Asterisk VoIP Admin Remote Caller ID App

We have VoIP server running Astresik. It has remote administratio via socket connection. There are sample C# code on net how to do many things but we need to take sample code and strip it down to ... (United States)

International VoIP Calling

Please read my requirement fully before sending me the solicitations. I will definetly not work with someone who would just send a quote without understanding my requirement. Preferance will be given ... (India)

These results are based on the freelance VoIP jobs extracted from Upwork in August 2018.

Trusted By The World’s Leading Companies Since 2013

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