Elfege Arthur Leylavergne

Solution Architect | Senior Software Engineer | Ph.D. Logic & Epistemology

Profile

I architect systems that anticipate and resolve complexity. With 15 years studying logic and epistemology, I approach distributed systems as evolving structures with internal tensions — not static designs. Three years of production engineering at Mindhop Inc. (2023–2026) — sole architect on three state-DOT safety-critical systems — taught me to anticipate failure modes, reduce complex problems to their essential structure, and integrate contradictory data sources into unified outputs. Active open-source work in agentic AI infrastructure at github.com/elfege.

Core Competencies

Languages:Python, JavaScript/ES6, TypeScript, C++, Groovy, Bash (preferred for systems automation), SQL
Back-End:Flask, FastAPI, Gunicorn, Node.js/Express, PostgreSQL, PostgREST, Flyway, RESTful API design, database schema design
Front-End:React 19, Next.js 15, TypeScript, MUI, Tailwind CSS, Kendo UI, Leaflet/GeoServer, ECharts, Socket.io
Data & Streaming:Apache Flink, Apache Kafka, PyFlink, AVRO serialization, real-time stream processing
DevOps & Cloud:Docker (Compose, Swarm, healthcheck/autoheal), CI/CD, GitHub Actions, AWS (ECR, EC2, S3, Secrets Manager, SSO), nginx, Linux admin, systemd
Async & Concurrency:Python asyncio, aiohttp, APScheduler, multiprocessing, multithreading, event-driven architecture, event-sourcing
Networking:TCP/IP, SNMP, NTCIP, RTSP, MQTT, WebRTC, WebSocket, WHEP/WHIP, HLS, ONVIF, Matter protocol, STUN/TURN, SSH, TLS
Security:NIST (SP 800-160/800-37), AES-256-CBC, Fernet/OpenSSL, JWT/CSRF, Docker network isolation
Hardware:LiDAR/TEMS sensors, Bosch RCP+, ONVIF, SNMP relay controllers, FFmpeg, ESP32/ESP8266

Experience

Senior Software Engineer — Mindhop Inc., White Plains, NY | 2023 – March 2026

Over-Height Vehicle Detection — Real-Time Edge Safety System (State DOT) [Details under NDA]

  • Sole architect of production edge-computing safety system: fault-isolated multi-process architecture with layered watchdog recovery, extended continuous uptime, and minimal memory footprint.
  • Dual-sensor correlation (LiDAR + video analytics) with intelligent deduplication; optimized detection pipeline reducing false positives via confidence-based filtering.
  • Real-time event distribution for traffic management dashboards; automated field installer with encryption and hardware integration.

DMS Control API — Highway Dynamic Message Sign Command & Control

  • Sole architect: reverse-engineered NTCIP 1203 from MIB specs to build vendor-agnostic driver framework (Daktronics VFC-3000, generic NTCIP) with factory/registry pattern and 3-tier quirk resolution.
  • Full protocol lifecycle: MULTI validation, CRC computation, activation sequences, readback verification. 15+ REST endpoints, 31 E2E tests, Kafka streaming.

Device Status Monitoring — Network Infrastructure at Scale (State DOT) [Details under NDA]

  • Architected async monitoring for thousands of devices across hundreds of subnets: 90%+ cycle time reduction via asyncio/aiohttp with high-concurrency worker pools.
  • APScheduler per-group scheduling with adaptive intervals, PostgREST streaming writes, Docker + AWS. Extended zero-error continuous operation.

SAM — Real-Time Alert Routing

  • Event-driven alert system on Apache Flink + Kafka dispatching email, SMS, WebSocket notifications.

DVS — Video Streaming

  • Flask + FFmpeg + WebRTC/HLS delivery with React monitoring UI for stream health.

Front-End — Production React/Next.js Monorepo

  • Contributor to production Next.js 15 / React 19 / TypeScript monorepo (Turbo, pnpm). Integrated real-time safety subsystem: alert providers, WebSocket streams, map panels, Kendo grids.

Engineering Methodology & DevOps — Linux/DevOps reference

  • Helped Mindhop adopt modern practice: Flyway-managed Postgres migrations (24-schema platform, 22+ authored), docker-compose, docker swarm. Team Linux/DevOps reference.

Software Engineer — PowerYou AI, New York, NY | 2022

Professor, Researcher & Technology Integrator — Lycée Français of New York | 2007 – 2022

Open-Source Developer | 2012 – Present

Education

Springboard Software Engineering Curriculum (800+ hours), Calif. BPPE — 2023
Ph.D., Université de Nantes — Logic & Epistemology | Summa Cum Laude | Published (ISBN 978-989-20-3141-5)
Master's, Université de Grenoble Alpes | ENS Lyon — Logic, Epistemology & Philosophy | Magna Cum Laude