Top Upwork Freelancers

More options
Clear all filters
  1. mohammad kamruzzaman

    mohammad kamruzzaman Agency Contractor

    Full stack web developer and VoIP Engineer, FreeSWITCH, ASTPP,Kamailio

    Bangladesh - Last active: 19 hours ago - Tests: 1 - Portfolio: 2

    i am a full stack web developer and server administrator (FreeSWITCH) i have experiences on Django (python), Codeigniter (php), MongoDB, ElasticSearch, postgres, redis, rabbitMQ, celery, mysql, nodejs. you can hire me if you need to implement a distributed VoIP enabled service based on freeswitch/kamailio that is ready to scale. i am also doing newfies-dialer customization and maintenance for a long while. and also i will take projects like PBX, IVR, autodialer development. i have open source project customization experiences, for example, FusionPBX,Newifes-dialer,Astpp,vBilling,kazoo, Kannel

    Groups: Twilio

    Associated with: DT software house, NGS

    $44.00 /hr
    2,572 hours
    4.57
  2. Vishak Nair

    Vishak Nair Agency Contractor

    Full Stack Developer and Twilio Expert

    India - Last active: 1 month ago - Tests: 8

    Full stack programmer/architect LAMP stack experience 6 years+ MEAN Stack Experience 1.5 years Tech Exp ------------------ Node.js, MongoDb, Angular.js, Express.js, PostgreSql, MySQL, PHP, JavaScript, Knockout.js, SharePoint 2010, HMVC, custom MVC Platforms & APIs -------------------------- Twilio, SalesForce, GitHub, Heroku, AWS, MongoLab, BaseCamp, cPanel, WHM, Asana, PayPal, FastSpring, Authorize.net, etc. Twilio Exp ---------------- Functionality developed on custom applications pertaining to Twilio, * Call Handling/Forwarding * Automated Call/Sms scheduling (inbound and outbound) * Dynamic IVR setup from custom backed * Real time deployment of custom IVRs frm backend and link with twilio apps * SMS handling/keyword-workflow based automated replies/parsing * Call recording/transcribing * Load balancing and Call Queuing * Grouping numbers dynamically and allocating them to applications *Buy/Release/Group numbers automatically via scripts on necessary triggers *Integration with any CRM with API access

    Groups: Twilio

    Associated with: HTTP Consulting

    $55.00 /hr
    565 hours
    4.80
  3. Mostanser Billah

    Mostanser Billah Agency Contractor

    Expert in PHP, Web Service, jQuery, Bootstrap, APIs, Payment Gateways

    Bangladesh - Last active: 19 hours ago - Tests: 6 - Portfolio: 16

    Over the last 8 years, I have developed a wide range of websites using HTML, DHTML, PHP, Rails, jQuery, Bootstrap, MySQL, AJAX, SMARTY, Joomla, CodeIgniter, Laravel, Anahita, MySQL including sites for startup companies and small businesses. My core competency lies in complete end to end technology and management of a new website development project, and I am seeking opportunities to build websites or web applications from the ground up for you or your business. I also have experience in the following areas: OOP, SOAP, SHELL Programming, Oscommerce, PHPBB Forum, Zen-Cart, Mod Rewrite, Developing API and Rails. Linux Server Experience: Site Migrations, MySQL Database Replicating, Remote File Transfer, SSH.

    Groups: Bluehost Developers and Designers, Pligg...

    Associated with: Codefightersgb Agency

    $31.11 /hr
    7,474 hours
    4.91
  4. Debasis B.

    Debasis B. Agency Contractor

    Critical Salesforce Automation & Customization, VoIP,Asterisk,Php,FM

    India - Last active: 12 days ago - Tests: 4 - Portfolio: 14

    Highly experienced expert designer and coder for new product development in Salesforce Apex and VisualForce, Force.com sites, VoIP, IVRs, SMS, Php-MySQL, Drupal, Netsuite, OpenERP, Amazon AWS, Amazon DynamoDB, Filemaker Pro and Cloud computing technologies. Creative problem solving ability for your complex apex, visualforce and siteforce requirements, who can elevate your organizations high-tech capability to the next level. Widely travelled in many countries including USA, Australia, UK, Europe, Asia Pacific countries on project implementations and thoroughly understand your global project outlook requirements. Have more than 17 years of commercial product development experience as Freelance Coder and remote development manager. Extensive experience in wide range of new commercial custom product development from inception primarily in VoIP, IVRs, SMS, mobile, Cloud ERP, Banking, B2B and B2C related sectors for diversed organizations situated in more than 10 countries. Lead complete IT development of US, UK and Australian companies. In-depth knowledge in Asterisk, Red5, C, C++, Php - MySQL, Perl, SIP, H.323, streaming video, premium IVRS and SMS applications, SalesForce and Force.com technologies, Apex coding, VisualForce, Netsuite cloud ERP, Drupal, FileMaker Pro 11, FileMaker Php, Quickbooks integration, AutoIT, Amazon EC2 based solutions, Ajax, jQuery & jQueryUI. My core competency lies in production level product development as top designer / programmer / developer from inception, and here I am seeking further such opportunities to design and develop professional, stable, bug-free products for your business.

    Groups: BoonEx, salesforce.com...

    Associated with: CloudLogics Agency

    $35.00 /hr
    5,778 hours
    5.00
  5. Sarim Ghani

    Sarim Ghani Agency Contractor

    .Net, C#, SQL, MYOB, Twilio, PHP, ASP.NET, CodeIgniter

    Pakistan - Last active: 1 month ago - Tests: 4 - Portfolio: 9

    IT Project Management Professional charged with leading and managing the medium to high complexity software development projects in off-shore and in-house scenarios. Have thorough skills in Managing as well as design, development and implementation of large scale software projects. 1 Over 6+ years of experience in Project Leadership/Management, specifically managing multiple development teams and coordinating with numerous stockholders involved in number of projects. 2 Over 5+ years of experience with ETL tools such as SQL Server (DTS) 3 Over 4+ years of hands-on experience in modeling, designing, tuning and leveraging large databases. 4 Over 1+ year of experience in data warehousing especially designing star schemas, dimensional modeling, and cubical analysis 5 Over 6+ months experience in Mobile Application Development focused on HTML5, Android, windows Mobile and PhoneGap.

    Groups: Microsoft Certified Professionals, Twilio

    Associated with: iSplendid

    $35.00 /hr
    289 hours
    4.92
  6. Aliasgar Trunkwala

    Aliasgar Trunkwala Agency Contractor

    Asp.net MVC, MSSQL eCommerce, Database, JavaScript Expert,

    India - Last active: 19 hours ago - Tests: 10 - Portfolio: 5

    I am Aliasger Trunkwala, a Master in computer science, a .Net c# software developer having full experience of more than 5 years and 3000 hours on odesk. In my whole development experience, I have taken these responsibilities mainly: -full stack software application development including specifications, software design, database schema, GUI Interface, Front-end, Back-end development, Bug tracking and issue solving, Support & closure. - Maintenance and support as well as functionality enhancements for a company for it's online store more than 2 years. The main framework is aspdotnetstorefront. - development and design of the eCommerce websites from the ground-up using bootstrap and JavaScript as well as functionality changes in the framework(aspdotnetstorefront) as per client's requirements. I've gone through intense testing for the site to work properly in all major browsers. - Deploying websites to the Hosting space or on a VHS. - Worked with Amazon EC2 PAAS for software developments. - In my past company, worked with a team of 5 developer to develop a custom CRM system known as loyalty-reward-program. - Development for a car dealing/auctioning site and bug fixing and development support. - Participated in client meeting to know their feedback and willing to do and provide more to them. I have worked on these technologies mainly: - C#,.NET, Win-form Applications as desktop applications' foundation, - ASP.NET for web-applications, Asp.net MVC3/4/5 for next generation WebApps, - Aspdotnetstorefront(ASPDNSF), nopCommerce as shopping-cart/eCommerce frameworks, - MSSQL servers: Administration, Stored procedures, database Performance tweaking, various database objects, -Entity framework 4/5/6 for Object relational mapping and Database-to-application layer classes, - RESTfull Web Services with SOAP and Json, - Amazon Email Services, Amazon Web Services, Amazon-EC2 to collaborate with Amazon services, - JavaScript, jQuery for client-side scripting and plugins development. - CSS 3, HTML 5, bootstrap for responsive designing and for better user experience, - Crystal Reports for reporting, -Git, SVN, Team foundation server for version control, - JIRA, ASANA, Trello for Development tracking, and much much more. I am expert in software engineering and try too make my code more clear using OOPS concepts to scale-up the application over technology-stack and make code more understandable using commenting code and providing summary-text(This is necessary when you work on a complex and a bigger project). My main aim is to provide my clients with the best solutions they can get and that also in timely fashion so that client is fully satisfied when the development process completes. Apart from that, I am a quick learner and can gain grip over new things easily over small amount of time. Thanks for reading, Aliasger Trunkwala.

    Groups: Application Developers Alliance, AspDotNetStorefront...

    Associated with: MARS IT INC.

    $21.78 /hr
    2,965 hours
    4.90
  7. Zak Kinion

    Zak Kinion

    Web Developer PHP jQuery Mysql and Python programmer

    United States - Last active: 1 month ago - Tests: 6 - Portfolio: 6

    I have 14 years experience in Web Development, and have built data driven sites for my own business needs as well as completed work for others. My origins are self taught, arising from my own needs during my first business while I was still in college. I am very good at PHP/MySQL or MS-SQL and have worked in both large and small companies ranging from simple quick fixes to complex applications. . I have built not only ajax client pages in javascript/jquery, but also backend, data driven servers in PHP. I am also good with wordpress and wordpress plugins and have extensive experience with them in the past. I know jquery and sass/compass as well. My main focus now is on mobile and I can make responsive websites (ones that look good on both phone and desktop devices) with compass design patterns. I believe in a strong work ethic and will get done what I say I'm going to get done.

    Groups: Twilio

    $20.00 /hr
    2,577 hours
    4.95
  8. Rubaiet M.

    Rubaiet M. Agency Contractor

    PHP5, Codeigniter, CRM, MVC, Twilio API, OpenVBX, Payment Gateway API

    Bangladesh - Last active: 2 months ago - Tests: 2 - Portfolio: 8

    I am a Web Application Developer, working with PHP since 2006 with several agile, Saas web application projects. Expert on OOP MVC Design Pattern specially in CodeIgniter, JQuery, Ajax. Expert, Ethical & Experienced - these might be the reasons for select me. Solid experience on SMS gateway API and applications like Twilio API, OpenVBX, Zencart, Opencart. My favorite task is develop custom plugins for applications. Favorite techniques/tools: - Object Relational Mapper (DataMapper ORM) - CRUD - SVN - Git Have huge experience in design and integrate payment gateway APIs and applications like: - Moneybookers - PayPal - Inpay - Barclaycard ePDQ - Authorize.net - NMI - Sagepay - Zipzap - ukash - Qiwi - OpenGateway - and many more!

    Groups: Twilio

    Associated with: PHP Players

    $44.44 /hr
    409 hours
    4.92