We’re looking for a skilled PHP developer to work with us over the next 12 months to modernise and customise an open-source VOIP billing platform. This will become the backbone of our internal VOIP and hosting services under the Zentara brand.
The project is based on the open-source platform AgileBill (https://github.com/tony-landis/agilebill), which will be upgraded and streamlined to meet our specific needs. ✅ What You’ll Be Working On • Upgrade to PHP 8.1+: Refactor the existing codebase to be fully compatible with PHP 8.1 or higher. • Custom VOIP Module: Once our VOIP provider’s API documentation is available, build a custom integration for provisioning, billing, and call tracking.
• Enhanced Control Panel: Develop a modern, user-friendly control panel for both clients and admins. • Stripe Integration: Create a Stripe module for recurring billing, one-off payments, and invoice management. • Module Cleanup: Remove unnecessary or outdated modules to keep the platform focused and efficient. • Hosting Portal Ready: Ensure the platform is flexible enough to support hosting services in the future.
Game Play Tester & Use-Case Developer Category: API Integration, CSS, Frontend Development, HTML5, JavaScript, JSON, PHP, User Experience Research, User Interface / IA, Web Development Budget: $250 - $750 USD
Short Drama Streaming App Creation Category: Backend Development, Frontend Development, IOS Development, Mobile App Development, Video Streaming Budget: $250 - $750 USD
20-Feb-2026 23:00 GMT
Gestión Instagram y Contenido Category: Adobe Creative Cloud, Adobe Dynamic Tag Management, Content Creation, Graphic Design, Instagram Marketing, Logo Design, Social Media Management Budget: $8 - $15 USD
20-Feb-2026 23:00 GMT
3D Space Crystal GIF Category: 3D Animation, 3D Design, 3D Graphic Design, 3D Modelling, 3D Visualization, After Effects, Animation, GIF Animation Budget: $30 - $250 USD
One-Day Rock Song Production Category: Audio Editing, Audio Production, Audio Services, Editing, Music, Music Production, Sound Design, Sound Engineering Budget: £20 - £250 GBP
20-Feb-2026 22:52 GMT
Logo - for hair Salon Category: Adobe InDesign, Photoshop, Graphic Design, Logo Design Budget: $250 - $750 USD
20-Feb-2026 22:50 GMT
Ai short video Category: AI Animation, AI Art Creation, AI Content Creation, AI Design, AI Development, AI Graphic Design, AI Text To Video, Video Editing, Video Production, Video Services Budget: €8 - €30 EUR
20-Feb-2026 22:49 GMT
Karikatur Digital Unik Category: 2D Animation, 2D Drawing, Character Illustration, Graphic Design, Illustration, Logo Design, Photoshop, Sketching Budget: $1500 - $3000 USD
20-Feb-2026 22:45 GMT
"Blind-Phase" Conflict Resolution Clincial Trials Development Category: API Development, Compliance, Data Analysis, Data Management, Database Development, Database Management, Encryption, Project Management, Software Development, User Interface / IA Budget: $20000 - $50000 USD
20-Feb-2026 22:43 GMT
Smartlead.ai Campaign Audit & Test Category: A / B Testing, Data Analysis, Digital Marketing, Email Marketing, Google Adwords, Internet Marketing, Marketing, Report Writing Budget: $30 - $250 USD
