Sven-Bjarne Seiffert

Specializing in mobile application development, passionate on the seamless integration of hardware devices and leveraging communication protocols -
Bluetooth, WebRTC, MQTT, WebSocket.

Keen eye for presenting data.

Athlete.

video
stream

topics

webRTC

RTSP

Peer-to-peer webRTC video stream application. Custom signaling protocol via WebSocket, two way audio/video. Dynamic RTSP stream as fallback.

Cached video file playback with a custom player build on top of VLC, enabling m4v playback.


Bluetooth

libsodium

CoreBluetooth

Frame Buffer

Combine

Built TLS-like encrypted Bluetooth streaming, IoT to iPhone, facilitating secure device communication via a frame buffer, encrypted using libsodium.


Real time
data

MQTT

WebSocket

Build MQTT and Websocket clients for multiple applications, displaying real time data send out by IoT devices. Lot’s of data.


NFC
QR Codes

CoreNFC

AVFoundation

NFC reader service to retrieve data from ISO 15693 chips. Devices with no NFC capabilities can automatically fall back to QR Code reader service.


Architecture

Presentation

Business Logic

Data Streams

Wrote applications from scratch, defining architecture, managing north of a hundred ViewControllers/Views and lot’s of data, CI/CD and testing.


More

Data Analysis

Backend

Web

Typescript, Python, Backend, Data Visualalisation