Telekommunikationstechnik Jobs

We are looking for an experienced React Native developer to help build and integrate a VoIP calling SDK into an existing mobile application. This is not a basic app development task. We need someone who has real experience with VoIP / WebRTC / SIP / SDK-level work and can deliver quickly. ### Project Scope - Integrate and extend a React Native VoIP SDK - WebRTC calling using - Inbound & outbound call handling - Push notification based incoming calls - Background call handling - App-based configuration dialing logic - SDK-style packaging + documentation support Our team will handle: - OpenSIPS / SBC (Call logic) - SIP infrastructure - APIs You will handle: - React Native SDK layer - Mobile VoIP calling integration - Native module bridging if required - Call UI handling - Stabili...

I need my new JustCall workspace created and ready to call today. The job is straightforward: register a fresh JustCall account under the details I’ll provide, secure a brand-new U.S. number, and confirm that both inbound and outbound calls work. You’ll handle the entire sign-up flow, any required ID or billing verification, and the quick configuration steps so I can log in and start dialing immediately—no number porting involved, just a clean setup. Deliverables • Active JustCall account in my name • New U.S. phone number attached and tested • One-page hand-off note showing where to adjust voicemail, business hours, and call-forward settings, plus proof that calls connect Experience with JustCall’s U.S. provisioning is essential since I’...

I need an experienced developer to build a complete Node.js REST API system from scratch that implements GSM and WCDMA telecommunications protocol functionality. You will work with comprehensive protocol documentation to build a production-ready system. What I Will Provide You - Complete protocol documentation (GSM/WCDMA specifications) - Packet format specifications and message type definitions - Device communication requirements (UDP ports, protocol structures) - API endpoint specifications for frontend integration - Protocol examples and sample packet data - Someone to handle device communication (provides JSON format to your APIs) What You Need To Build = 1. Protocol Implementation > PRIORITY Implement GSM protocol (encoding/decoding, message types, validation) Implement WCDMA pr...

Uptalent is seeking a skilled professional to join our team as an O-Calc or SPIDACalc Engineer. This is a great opportunity for a motivated individual looking to make a difference in the civil engineering industry. As an O-Calc or SPIDACalc Engineer, you will be responsible for providing accurate engineering calculations and designs to our clients worldwide. Our company is dedicated to matching global top-tier talent with the most exciting companies in the world. We offer a dynamic work environment, professional development opportunities, and a chance to be part of an innovative team that's changing the industry. Responsibilities: Provide accurate O-Calc or SPIDACalc engineering calculations and designs. Work with project managers to develop project scopes, schedules, and budgets...

I need a professional to enhance an existing SIM card for mobile communication, specifically supporting LTE and 5G technology. Ideal Skills and Experience: - Experience in SIM card development - Expertise in 5G network technology - Background in mobile communication systems - Proven track record in similar projects Please include relevant experience in your application.

We are looking for an experienced and dynamic Telecommunications Engineer to prepare Technical Site Surveys (TSS). The successful candidate will be responsible for writing and ensuring that design specifications are aligned with the client's actual work orders Technical Report Writing: Prepare detailed TSS reports with photographic documentation, diagrams and Bill of Materials (BoM) Field Experience: At least 2 years of experience in site surveys or radio network installations (2G/3G/4G/5G). Technical Knowledge: Familiarity with Huawei provider equipment and power/grounding systems.