Windows Application Developer (Real-Time Audio, .NET/WPF)

Responsibilities

• Design and implement the Windows client app (UI + audio pipeline + networking).
• Implement efficient binary streaming with System.Net.WebSockets and System.IO.Pipelines.
• Integrate with our server endpoints (session init, voice catalog, health); handle TLS, auth headers (API-Key/JWT).
• Device management: enumerate/select WASAPI capture & render devices; detect exclusive/shared mode capability.
• Audio UX: input/output gain, optional noise gate, basic high-pass; guard against underruns/overflows.
• Packaging: produce an installer; configure auto-start/minimize-to-tray; persist settings securely (DPAPI).
• Diagnostics: structured logs, simple latency/jitter telemetry, crash-safe operation.
• Collaborate on message contracts with the backend; document the app for hand-off.

Must-have skills

• C# / .NET 6+ (ideally .NET 8) and WPF with MVVM.
• NAudio and WASAPI (capture & render), real-time audio buffering.
• WebSockets (binary streaming) and back-pressure/jitter handling.
• Windows audio device enumeration, exclusive/shared mode, sample-rate handling.
• Packaging & deployment: MSIX or Inno/NSIS, app settings, code signing basics.
• Practical async/await, cancellation, and error handling patterns.
• Comfortable reading API specs and integrating with TLS-protected endpoints.

Nice to have

• System.IO.Pipelines experience for high-throughput streaming.
• Basic DSP: gain, AGC, high-pass, crossfade smoothing.
• Experience routing audio to virtual devices (VB-Audio Cable, BlackHole).
• Familiarity with Vicidial/WebRTC audio paths (not mandatory—virtual-mic routing is primary).
• Logging/metrics: Serilog, EventSource, basic Prometheus exporters.
• Auto-update frameworks (Squirrel.Windows / NetSparkle).

Tooling you’ll use

• .NET 8, WPF, CommunityToolkit.Mvvm
• NAudio (WASAPI), System.Net.WebSockets, System.IO.Pipelines
• System.Text.Json (source-gen for DTOs), Serilog (+ File sink)
• MSIX / Inno for installer; DPAPI for secrets

Job Type: Full-time

Pay: Rs50,000.00 - Rs150,000.00 per month

Work Location: In person