Senior Software Engineer - C++ · Real-time Visualization · ML Systems Belgrade, Serbia · LinkedIn · andjelkovicdjordje@hotmail.com
I build systems that cross layers: microsecond-latency C++ trading infrastructure on one end, GPU particle visualization (CesiumJS / GLSL) and in-browser ML inference (Whisper on ONNX Runtime Web, WebGPU/WASM) on the other.
My main production work lives in private repositories, spanning an HFT crypto exchange and a real-time geospatial situational-awareness platform.
- C++ systems - low-latency services on an in-house actor framework, Aeron/SBE messaging, typed database libraries, Bazel monorepo toolchains
- ML systems - time-series anomaly detection, MLflow, Ray Serve, FastAPI, Parquet data paths, QuestDB ingestion
- On-device AI - Whisper STT, ONNX Runtime Web, transformers.js, WebGPU/WASM, quantized inference (fp32/fp16/q4)
- Graphics & geospatial - CesiumJS, GLSL particle systems, weather, ocean-current and satellite visualization
Hit real limitations of MindsDB's Ray Serve integration while running it in production, and fixed them upstream. 4 merged PRs:
- Propagate prediction parameters through RayServeHandler (#10371)
- Pass training parameters during Ray Serve model creation (#10462)
- Parquet-based dataframe marshalling (#10449)
- Preserve JSON error responses when Parquet handling fails (#10553)
Building browser-native speech recognition and voice-command routing, GPU wind and ocean-current visualization, and the reactive Svelte architecture that ties them together.