Sonar — real-time video advisory for German banks

Sonar is a European video-consultation platform whose users include German banks. Vaagmodo is Sonar's long-term engineering partner, contributing continuously across the platform's real-time video, AI and integration work.

Banking is a maximum-scrutiny environment: European data-protection law (GDPR/DSGVO), high availability expectations and conservative IT governance. Everything delivered into a platform like this has to hold up to that standard, year after year.

• Deliver and continuously evolve real-time video consultation that works reliably across browsers, devices and imperfect networks — for advisors and their customers.
• Add live multilingual captioning and translation so consultations work across language barriers — without routing sensitive audio through third-party cloud AI services.
• Sustain this over years as a stable engineering partnership, not a one-off project.

• Real-time video engineering — WebRTC and server-side media work delivered as part of the platform's continuous development: making calls connect, record and stay usable across browsers, devices and networks nobody controls.
• Live captioning and translation in 15 languages (including Indian languages), integrated into video consultations: Whisper ASR for speech recognition and self-hosted open translation models, running on infrastructure the operator controls, so audio never leaves it.
• AI in the video path — computer vision (a self-hosted open vision-language model) for damage analysis in insurance video calls, assessing damage shown on camera during a live call. It began as a small feasibility prototype, which is how we prefer to start anything uncertain.
• Payment and checkout integrations delivered inside the same platform context — SEPA and card flows.
• Operations discipline — containerized deployment, CI/CD and monitoring as standing practice.

Years of production real-time media work is also what equips us to migrate legacy video platforms to modern stacks (LiveKit, mediasoup-class SFUs) — the architecture we default to for new builds. The engineering behind self-hosted AI capacity is covered in our AI Infrastructure case study.

• Vaagmodo-engineered technology runs in video consultation used by German banks — a named, referenceable client in a regulated sector.
• Live captioning and translation across 15 languages including Indian languages, delivered GDPR-compatibly through fully self-hosted AI, with no third-party AI API in the data path.
• Computer vision added to the live video path for insurance damage assessment, from feasibility prototype to production feature.
• A long-term engineering partnership that continues today — our strongest evidence of delivery quality.