Software Engineer

Overview

C# Software Engineer, Remote, 12 month contract, Inside IR35. Must be eligible for BPSS clearance. Working one day a month on site in Rugby. Real-time system experience is essential for this role, working within an Agile delivery team, you will move beyond standard CRUD applications to solve complex network and real-time communication challenges. You will lead the development of expansion products that interface with 3GPP-compliant User Equipment (UE).

Responsibilities

• SIP Signaling & Session Management: Develop C# components for high-concurrency SIP sessions, managing complex headers and MIME bodies to support features like First-to-Answer and Group Regroups.
• Real-Time Media Plane: Implement RTP/RTCP media handling for Mission Critical Voice (MCPTT) and Video (MCVideo), ensuring seamless floor control (transmission rights) in half-duplex environments.
• Data & Configuration: Build handlers for MCData services (SDS, File Dist...