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ShunmugavelDirector of Engineering

Open to Senior Director / VP of Engineering

Shunmugavel Mariappan

Applied AI · Enterprise SaaS · Cloud Platforms

I scale engineering organizations that ship AI and platforms with P&L impact.

Leading Built To Order AI businesses and agentic engineering systems with measurable P&L outcomes.

+$28M

Net-new ARR added

40%

Operating income (AI Built To Order)

6×

Org growth (5 → 30 eng)

92%

Talent retention

20,000+

Technicians AI-automated

Leadership narrative

Engineering leader with 19 years building and scaling SaaS platforms and the organizations behind them. Shipped a production ML scheduling system for 20,000+ field technicians at Verizon years before AI was a boardroom priority, then scaled a Trimble cloud platform team 6× (5 → 30 engineers) while adding $28M in net-new ARR.

Most recently launched a Built To Order AI business from 0→1 with 5 paying enterprise customers at 40% operating income, delivering custom AI solutions as a new high-margin revenue line. Known for turning customer commitments into shipped product, retaining top talent (92%), and embedding AI into how teams build, not just what they build.

Title is Engineering Director; operating scope has consistently exceeded that band. India Engineering Council representative for 500+ engineers for more than 6 years, leads a Trimble India–level high-performance culture initiative, authored org-wide engineering playbooks, and partners on a $50M ARR portfolio. Functioning at Senior Director / VP scope for more than a year.

Looking to lead a software engineering organization for an enterprise SaaS business operating at scale. Targeting Director, Senior Director, or VP of Engineering roles in Enterprise SaaS, AI/ML platforms, or logistics & supply chain technology.

Selected outcomes

Proof points a hiring leader can verify against the CV: business results, not activity lists.

Trimble

Built To Order AI business, 0→1

5 paying enterprise customers at 40% operating income

Authored the business model and partnered with Sales on go-to-market to deliver custom AI solutions, establishing a new high-margin revenue line within the Applied AI portfolio. Stood up the Built To Order entity with org design, financial model, and operational playbook in a 30-day 0→1 transition.

Trimble

Platform & product lines that moved the P&L

+$28M net-new ARR ($22M → $50M)

Launched two new product lines in transportation & supply chain and expanded enterprise adoption of the Forestry Industry Cloud, partnering with Product and Business as a P&L co-owner. Built the Forestry Industry Cloud from zero to cross-org adoption across four product lines with API standards, multi-tenant architecture, and AI/agentic-ready data workflows.

Verizon

Production ML for field operations

20,000+ technicians · automation 34% → 80%

Built and shipped a production ML dispatch system optimizing 50,000 daily jobs, cutting manual scheduling time 30% years before ML became mainstream in operations.

More proof points

  • GenAI productivity

    ~65% less test-case effort · ~75% less release-notes effort

  • Cloud economics

    97% AWS efficiency · material annual FinOps savings

  • Release transformation

    Quarterly cycles → sprint-end production deploys

  • Playbooks at scale

    Engineering & AI-in-QA standards for 500+ engineers

  • High-performance culture

    Trimble India–level initiative · outcome-driven operating model

  • Engagement

    +11 Glint points · Pulse 80+

  • India Engineering Council

    500+ engineers · representative for 6+ years

  • Community

    BCDC · GDG Chennai · BeSA-AWS · CTO Talks · AWS UG Chennai

A Global Engineering Journey

India, 2006 – 2018

Foundational Growth

Verizon

Progressed from Software Engineer to Technical Manager in Chennai. Shipped a production ML dispatch system automating 50,000 daily requests for 20,000+ field engineers.

2018 – Present

Global Leadership & Impact

Trimble

Advanced to Engineering Director, leading a 30-engineer organization for cloud platforms and Applied AI. Drives global strategy across India, US, Canada, Finland, and New Zealand.

Multi-Cloud & Platform Engineering

AWS, Azure, GCP certified. Architects resilient, multi-tenant SaaS platforms.

Gen AI & Machine Learning

Integrates agentic AI, LLMs, and ML systems to automate complex workflows and elevate user experience.

Global engineering journey

Innovation culture

3× consecutive Trimble Innovation Premier League champion

2023–2025 · Overall Excellence · Deep Tech

Led the team to three back-to-back victories in the Innovation Premier League (IPL) / Trimble India Hackathon. Proof that innovation is a habit, not an event.

  • Innovation sandboxes and competitive experimentation as operating practice
  • 300+ technical knowledge-base articles
  • 100+ annual cross-project brown-bag sessions
With the Innovation Premier League (IPL) winner cup
IPL winner cup
Gallery of Trimble Innovation Premier League trophies and awards
Trimble award collection

AI, platforms & engineering excellence

Production AI, Built To Order delivery, and FinOps-backed platforms tied to measurable business value.

AI as a business multiplier

  • Verizon: ML dispatch for 20,000+ technicians; automation 34% → 80%
  • Trimble: AI-assisted engineering. ~40% delivery velocity lift; ~65% reduction in test-case generation effort
  • Agentic workflows beyond chat: LangGraph, n8n, vector DBs, agentic-ready APIs
  • Open-source agent engineering: mcp-atelier (MCP workshop with live tracing), diffvector (embedding drift), mcp-compat (MCP client compatibility), mcp-breaker (MCP tool-loop circuit breaker), fatcheck (instruction-file weigh-in), and skilldiff (skill/tool A/B tests with LLM-as-a-Judge)

Built To Order AI delivery

  • Bridge bespoke enterprise quality with platform speed
  • 0→1 Built To Order business: org blueprint, financial model, Sales GTM partnership
  • 5 paying customers at 40% operating income. High-margin Applied AI revenue line

Cloud, FinOps & engineering excellence

  • Multi-cloud (AWS · Azure · GCP) with FinOps discipline: 97% AWS cost-efficiency rating
  • AI-in-QA playbook, QA Nexus dashboard, SPACE & DORA instrumentation
  • Internal Tech Radar with ~40% org adoption: Stay Curious as the technical North Star

My Tech Radar 2025

Stay Curious

ASSESSTRIALADOPT12345678910111213141516171819202122
AdoptTrialAssess

Tools

  • 1.DevboxAdopt
  • 2.JMeter with AIAdopt
  • 3.AWS Logger / MCPAdopt
  • 4.Figma to UI / MCPAdopt
  • 5.Modus MCPAdopt
  • 6.Playwright / MCPTrial
  • 7.AWS FinOps / MCPAssess
  • 8.Mongo MCPTrial
  • 9.Debug GymAdopt
  • 10.Edge AITrial
  • 11.AWS TransformTrial
  • 12.SQL ObservabilityTrial
  • 13.Appium / MCPAssess
  • 14.Selenium / MCPAssess
  • 15.Version Control DashboardTrial

Platform

  • 16..NET AspireAssess

Techniques

  • 17.Function calling with LLMsAssess
  • 18.Gen AI to understand legacy codeTrial
  • 19.Synthetic Data Set CreationAssess
  • 20.Automated test generation / Trimble AssistantAdopt
  • 21.Auto PR review / Trimble AssistantAdopt

Languages & Frameworks

  • 22.QuarkusAssess
Tech Radar 2025: Stay Curious

My Framework to Accelerate Value Delivery

Engineering Practices

Cultivate / Evolve

Measurements

Mature / Optimise

Capabilities

Mature / Drive

North Star Goals
Customer Value
Value delivery framework

Skills

Production AI, multi-cloud, and the languages and platforms I use hands-on.

LLM Providers & Models

  • OpenAI
  • Anthropic
  • Google Gemini
  • Hugging Face
  • Ollama
  • Groq

Orchestration & Agents

  • LangChain
  • LangGraph
  • LangSmith
  • LlamaIndex
  • MCP
  • n8n

Cloud & Infrastructure

  • AWS
  • GCP
  • Azure
  • Docker
  • Kubernetes
  • Terraform

Data, MLOps & Frameworks

  • FastAPI
  • PyTorch

Vector DBs

  • Pinecone

Architecture

  • Microservices
  • Distributed & Event-Driven Systems
  • Multi-Tenant SaaS
  • Mobile

Languages

  • Java / Spring Boot
  • Python
  • .NET
  • C#
  • JavaScript / Angular

Data

  • Kafka
  • PostgreSQL
  • MongoDB
  • SQL Server
  • Event Streaming Pipelines

Mobile

  • Android
  • iOS Native
  • Apache Cordova
  • .NET MAUI

API

  • REST
  • SOAP

Certifications

  • AWS Solutions Architect Associate
  • Azure Fundamentals
  • Google Cloud Digital Leader

Open source

Tools I ship publicly, with a short definition and a link.

  • mcp-atelier

    Hands-on lab that runs an LLM agent over MCP with a Streamlit UI, live tracing, and structured errors so you can watch every tool call in the loop.

  • CLI that diffs vector embeddings like git, reporting semantic drift and search regression so teams catch it before changing embedding models or chunking.

  • CLI that starts an MCP server, simulates Cursor, Claude Desktop, and VS Code, and runs a compatibility checklist so teams get a pass/fail score instead of testing each client by hand.

  • CLI that A/B tests AI agent skills, prompts, and tool definitions with LLM-as-a-Judge, scoring baseline vs. variant traces so teams know whether a change actually improved the agent.

  • CLI that counts, lints, and safely prunes AI instruction files (Cursor rules, AGENTS.md, CLAUDE.md) so teams stop paying token cost for forgotten rules.

  • CLI that wraps an MCP server as a stdio JSON-RPC proxy and trips a circuit breaker when an AI agent repeats the same tool loop, so sessions stop in 2–3 iterations instead of spinning.

How I lead

Org design, culture, and succession: the operating system behind the metrics.

My Foundation: The High Impact Culture

Customer Value
North Star Value
Engagement
Engineering Excellence
L3
Matured Engineering PracticesInnovationGrowth MindsetTeam Engagement
L2
Continuous GrowthEmpowerment
L1
Immersive LearningUpskill / ReskillExternal / Internal ForumsOn the Job: Above and Beyond
High-performance culture framework

High-performance culture in Trimble India

Leading a Trimble India–level high-performance culture initiative: shifting from task-based management to an outcome-driven operating model across the engineering organization. Built around the 3Ps (Purpose, Priority, Partnerships), psychological safety, and measurable engagement (Pulse 80+, +11 Glint).

Single-Threaded Ownership

Modular org design: clear missions, decoupled dependencies, and radical autonomy for product suites. The result is higher velocity and less friction. Mentors Future Women in Leadership (FWL).

India Engineering Council, 6+ years

Segment representative for 500+ engineers for more than 6 years, driving strategic alignment between regional talent and global product roadmaps, plus org-wide standards for architecture, AI adoption, and developer experience.

Experience

Engineering Director, Applied AI, Cloud Platform & Transportation SaaS

Trimble Inc. · Chennai, India

Engineering Manager → Senior Engineering Manager → Director

Oct 2018 – Present

$5B-revenue global enterprise SaaS leader (construction, transportation, agriculture), 150+ countries

Lead a 30-engineer organization through 2 engineering managers and 3 staff engineers; partner on the $50M ARR P&L with Product and Business; report to the Sr. Director & Global VP of Engineering.

  • Launched a Built To Order AI business 0→1 with 5 paying enterprise customers at 40% operating income.
  • Drove $28M in net-new ARR ($22M → $50M) by launching two new product lines and expanding Forestry Industry Cloud adoption.
  • Built the Forestry Industry Cloud from zero to cross-org adoption across four product lines. API standards, multi-tenant architecture, AI/agentic-ready workflows.
  • Scaled the org 6× (5 → 30 engineers) with 92% retention using single-threaded ownership.
  • Leading a Trimble India–level high-performance culture initiative: outcome-driven operating model, 3Ps governance, and sustained engagement (Pulse 80+, +11 Glint).
  • India Engineering Council representative for 500+ engineers for more than 6 years; drove org-wide standards for architecture, AI adoption, and developer experience.
  • Improved delivery velocity 40% by embedding AI-assisted engineering into the standard sprint cadence.
  • Cut release cycle time 25% through platform modernization and CI/CD / DevSecOps investment.

Technical Manager, AI/ML & Dispatch Automation

Verizon · Chennai, India

Dec 2006 – Oct 2018

Fortune 500 #13 · $134B revenue · largest US telecom

Led a 70+ person engineering organization spanning direct reports and vendor (SOW) teams; delivered high-availability, data-intensive dispatch platforms end to end.

  • Shipped a production ML dispatch system for 20,000+ field technicians and 50,000 daily jobs, lifting scheduling automation from 34% to 80% and cutting manual scheduling time 30%.
  • Delivered 5 web applications and 1 mobile app from concept to launch, automating core field-operations workflows.
  • Advanced through 4 promotions in 12 years to Technical Manager; selected for the Verizon Leadership Pipeline.

Technical depth

Credible technical fluency for AI, platforms, and multi-cloud. Not a junior skills dump.

Applied AI & GenAI
LLMs (GPT, Claude, Gemini, Llama) · RAG · Prompt Engineering · Fine-tuning · LangChain · LangGraph · Agentic AI (n8n) · Vector DBs (Pinecone) · Model Context Protocol (MCP)
AI Engineering & MLOps
Production ML · Model Evaluation & Guardrails · LLM-as-a-Judge · Agent A/B testing · MLflow · Model Serving · AI-Assisted Development (Cursor, GitHub Copilot) · Streamlit
Architecture
Microservices · Distributed & Event-Driven Systems · Multi-Tenant SaaS · Mobile
Languages
Java / Spring Boot · Python · C# · JavaScript / Angular
Cloud & Platform
AWS · Azure · GCP (Multi-Cloud Certified) · Kubernetes · Docker · Terraform · CI/CD · DevSecOps · FinOps
Data
Kafka · PostgreSQL · MongoDB · Event Streaming Pipelines

Credibility

  • 3× Trimble Innovation Premier League / India Hackathon champion (2023–2025)
  • Verizon Leadership Pipeline
  • Trimble Leadership Circles
  • AMCHAM Global Leadership / NextGen Leadership
  • India Engineering Council Representative (500+ engineers), 6+ years

Cloud certifications

AWS Certified Solutions Architect · Azure Fundamentals · Google Cloud Digital Leader

Education

Master of Computer Applications (MCA)

Periyar University, Tamil Nadu

Let’s talk about your next engineering chapter.

Chennai, India. Open to Bengaluru / Hyderabad / Pune · Open to relocation. Valid USA B1 visa holder. Collaborate across US, Canada, Finland, and New Zealand time zones. Available for Senior Director and VP of Engineering conversations in enterprise SaaS, applied AI, and cloud platforms.