Vaysage KV — Backend / Python Engineer

==============================
   V A Y S A G E   K V
==============================

guest@zianashmivaysage.me:~$ finger vaysage█

Login: vaysage          Name: Vaysage KV
Directory: /home/vaysage    Shell: /bin/zsh
Office: Thrissur, Kerala, IN
Project: Backend / Python Engineer — Open to Remote (US tz overlap)
Plan:
  Build production-grade backend systems — async Python services,
  secure auth flows, and real-time data pipelines. Currently leading
  backend of an in-house computer-vision platform. Based in Kerala, India.
  Available to overlap US time zones.

●ONLINE

$ ls -la skills/

drwxr-xr-x  2 vaysage vaysage 4096 Apr 16 2025 Languages             [Python] [Java] [SQL] [JavaScript] [C#] [Bash]
drwxr-xr-x  2 vaysage vaysage 4096 Apr 16 2025 Backend & APIs        [FastAPI] [Spring Boot] [Spring] [JPA] [REST] [Microservices] [async/await] [WebSockets]
drwxr-xr-x  2 vaysage vaysage 4096 Apr 16 2025 Auth & Security       [OAuth2] [OIDC] [Microsoft Entra ID] [BFF Pattern] [HttpOnly Cookies]
drwxr-xr-x  2 vaysage vaysage 4096 Apr 16 2025 Real-time & Streaming [WebSocket] [gRPC] [WebRTC] [LiveKit]
drwxr-xr-x  2 vaysage vaysage 4096 Apr 16 2025 Databases             [PostgreSQL] [MySQL] [Oracle] [SQLite] [Supabase] [Complex SQL & CTEs]
drwxr-xr-x  2 vaysage vaysage 4096 Apr 16 2025 ML / CV Integration   [YOLOv8 (Ultralytics)] [ByteTrack] [ArcFace] [SCRFD] [InsightFace] [MediaPipe] [ONNX]
drwxr-xr-x  2 vaysage vaysage 4096 Apr 16 2025 Tooling & DevOps      [Git] [Docker] [Dev Containers] [Linux] [Sentry] [uv / pip]
drwxr-xr-x  2 vaysage vaysage 4096 Apr 16 2025 Frontend (working kno) [React] [Vite]

$ cat /var/log/experience.log

[Jan 2019 – Present] CITRUS INFORMATICS (Kochi, India) — Project Lead Engineer
  * Lead a two-engineer team building VisionLog AI — an internal computer-vision platform on FastAPI that orchestrates multiple concurrent camera streams in real time.
  * Designed OAuth2/OIDC authentication with Microsoft Entra ID using a Backend-for-Frontend (BFF) pattern and HttpOnly session cookies, keeping access tokens out of the browser.
  * Architected async Python services running a multi-stage ML pipeline: YOLOv8 detection → ByteTrack tracking → ArcFace/SCRFD face recognition → gait recognition for occluded faces.
  * Built a gait-recognition subsystem fusing MediaPipe pose features with OSNet re-ID embeddings via weighted score fusion.
  * Led remediation of CVE-2026-39363 (exposed Vite dev server), upgrading toolchain and hardening deployment config.
  * Delivered Neorevv (Spring Boot, auth + commission/payment for a Middle East real-estate client), an LMS on Supabase with CTE-driven reporting, and backend microservices for CitusHealth (ResMed) email/SMS notifications.
  * Prototyped real-time voice/video features evaluating WebSocket, gRPC, WebRTC, and LiveKit; designed a Malayalam TTS voice-agent architecture.
  { FastAPI | Python | OAuth2 | OIDC | YOLOv8 | gRPC | WebRTC | Spring Boot | Supabase }

[May 2018 – Nov 2018] RIDGECONE TECHNOLOGIES (Alappuzha, India) — Team Lead
  * Led the development team and built a SaaS web application from scratch for Halo using Java 8, Spring Boot, Spring, and JPA.
  { Java 8 | Spring Boot | Spring | JPA }

[Oct 2015 – Feb 2018] MINDCURV TSPL (Kochi, India) — Software Engineer
  * Built and maintained B2B e-commerce features for the Delixl/Bidfood platform on the ATG stack (Java, Oracle).
  * Developed a web application for collecting and managing customer quotations.
  { Java | Oracle | ATG | E-Commerce }

[Oct 2012 – Oct 2015] LXI TECHNOLOGIES (Palakkad, India) — Software Engineer
  * Built SERVEASE, a point-of-sale system for hotels and supermarkets (Java, MySQL).
  * Built SWADISHTA, a companion mobile ordering app (J2EE, Struts 2, jQuery Mobile).
  { Java | MySQL | J2EE | Struts 2 }

[Jul 2010 – Jul 2012] ROBOSOFT TECHNOLOGIES (Udupi, India) — Software Engineer
  * Developed the NDTV News Reader Windows Phone app (C#, Silverlight, XAML, MVVM).
  * Diagnosed and fixed a long-standing AES encryption bug; built paint app and Snake game during training.
  { C# | Silverlight | MVVM | Windows Phone }

[Aug 2009 – Feb 2010] ONMOBILE GLOBAL (Bangalore, India) — Associate QA Engineer
  * Functional and user-acceptance testing of value-added telecom services; automated backups with shell scripts.
  { QA | Bash | Telecom }

$ cat /etc/credentials

[BE] Electronics & Communication Engineering
     Reva Institute of Technology & Management, Bangalore (2005 – 2009)

[OCJP] Oracle Certified Java Professional
     Oracle Corporation

$ finger vaysage@vaysage.net

Email:   kvvaysage@gmail.com
Phone:   +91-73539-77190
LinkedIn: https://linkedin.com/in/vaysage-kv-44b84a18
GitHub:   https://github.com/vaysagekv

"First, solve the problem. Then, write the code." — John Johnson