Shantanu Mallik

SVT / PV Engineer · Ciena

Shantanu Mallik

Automate everything. Make AI do the rest.

Python Agentic AI Automation LLMs
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WHO AM I

The work, the stack,
and the person behind it.

SVT/PV Engineer at Ciena, working at the intersection of Python automation and Agentic AI. The focus: validation platforms and intelligent failure-triage systems for optical networking products running at 1.6 Tbps. If a process can be automated or a failure can be reasoned about by a machine, that's where the work happens.

LinkedIn
5+ Years Python
1.6 Tbps Scale
AI Agentic Systems
50k+ Users Served

What's in the toolkit.

Agentic Ai

Agentic AI Systems 93%
LangChain / LangGraph 89%
LLM Integration 87%
AI Failure Triaging 90%
RAG Pipelines 84%
Prompt Engineering 88%

Backend Engineering

Python 97%
REST API Design 93%
Flask / FastAPI 88%
PostgreSQL 82%
Docker 80%
Linux 87%

Data Engineering

Data Modeling 85%
Data Pipeline Design 83%
Large-Scale Data Analysis 80%

Platform & Ci/cd

Automation 93%
Jenkins CI/CD 90%
Distributed Systems 84%
Grafana 80%
TestRail 78%

Tooling & Cloud

Git / GitHub 92%
GCP 74%
Ruby on Rails 70%
Heroku 72%

WORK

Things built and shipped.

💻
Featured

Agentic Failure Triage System

LLM-powered root-cause clustering for CI/CD test failures

Built at Ciena to tackle the hardest part of large-scale hardware validation: making sense of thousands of test failures per build cycle. An agentic workflow ingests structured failure logs from Jenkins CI/CD runs, uses LangGraph to orchestrate multi-step LLM reasoning chains, and produces clustered root-cause summaries with confidence scores and suggested fix paths.

Python LangChain LangGraph OpenAI Jenkins REST APIs Git
💻
Featured

Internal Validation Platform

Backend platform orchestrating 1.6 Tbps distributed systems testing

Core backend contributor to Ciena's internal developer platform — a Python service layer that orchestrates automated firmware and system-build validation across distributed networking hardware at up to 1.6 Tbps. Exposes REST APIs consumed by Jenkins CI/CD pipelines to trigger, monitor, and report on thousands of test runs across hardware variants.

Python REST APIs Jenkins Grafana TestRail CI/CD Linux
💻

FlavorDB & RecipeDB APIs

Data APIs powering 118k+ recipes and 934-ingredient flavour knowledge base

At the Complex Systems Laboratory (IIIT Delhi), built the backend data services underpinning two large-scale research knowledge bases. RecipeDB: queryable API over 118,000+ recipes across 26 global regions. FlavorDB: data models and retrieval APIs for 934 natural ingredients and their flavour molecule profiles — used by food scientists globally.

Python REST APIs Data Modeling Data Pipeline Design PostgreSQL
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Freelance Backend Systems

Production APIs and platforms scaled to 50,000+ users

Four years of independent backend engineering across startup and enterprise engagements. Built automation-first APIs eliminating ~95% of clients' manual processing workloads. Delivered complete Python + Flask backends from schema design through cloud deployment, serving 50,000+ active users in production.

Python Flask Ruby on Rails REST APIs PostgreSQL GCP Heroku CI/CD

CAREER

Where the work happened.

Ciena Jan 2025 — Present

Software Systems Engineer

Joined as an Engineering Intern and converted to full-time — building the internal platform that validates distributed networking hardware operating at up to 1.6 Tbps. Design and ship Python-based backend services and REST APIs consumed by Jenkins CI/CD pipelines to automate firmware and system-build validation across multiple hardware variants — reducing manual testing effort by ~40–50%. Developed AI-assisted failure triaging workflows: an agentic system (LangChain/LangGraph) that ingests raw test failures, clusters root causes using LLM reasoning, and delivers structured debugging summaries — compressing triage time from hours to minutes. Architected Grafana dashboards surfacing build-execution trends, test stability signals, and platform-health KPIs for engineering leadership.

Python LangChain LangGraph REST APIs Jenkins Grafana TestRail CI/CD Git Linux
Complex Systems Laboratory / Foodoscope Jan 2024 — Jan 2025

Research Intern

Research Assistant at IIIT Delhi's Complex Systems Lab, building backend systems and data APIs for large-scale food, nutrition, and health knowledge bases. FlavorDB — APIs for 934 natural ingredients and their flavour-molecule compositions. RecipeDB — data pipelines and querying layer for 118,000+ recipes spanning 26 global regions. DietRx — backend linking dietary ingredients to clinical therapeutic evidence.

Python REST APIs Data Modeling Data Pipeline Design PostgreSQL
Freelance Apr 2019 — Apr 2023

Software Engineer

Four years of end-to-end ownership across backend, APIs, database design, and cloud deployment for startups and enterprise clients. Delivered production-grade Python and Ruby on Rails systems serving 50,000+ active users. Built automation-heavy APIs that eliminated ~95% of manual processing effort for clients. Managed full deployment pipelines on GCP and Heroku.

Python Flask Ruby on Rails REST APIs PostgreSQL Git Linux GCP Heroku CI/CD

BEYOND THE CODE

When I'm not writing systems
that think, I'm out finding places that do.

Hiking

Peaks & silence ↑

Mountains

Himalayan horizon

Guitar

Rooftop sessions 🎸

Buddha

Somewhere high up

Prayer wheel

Tibetan Buddhist Temple, Mussoorie

Prayer flags

Prayer flags, Mussoorie

GET IN TOUCH

Let's build something
extraordinary.

📍 Gurugram, Haryana, India