Full-Stack & AI Engineer · Chennai, IN

Sanjay Kumar
building enterprise
software, AI-ready.

Mendix Advanced Certified Developer with 3+ years shipping enterprise-grade low-code platforms for government, healthcare & financial clients across UAE, USA & India — now bridging low-code with LLMs, RAG & MCP.

Mendix Advanced Certified 3+ yrs · 9+ enterprise apps UAE · USA · India
sanjay@portfolio: ~/profile
# whoami
Mendix Developer · System Engineer @ TCS
cat stack.json
  "platforms": [ Mendix, Microflows, OQL, Java Actions ],
  "languages": [ Python, Java, SQL ],
  "ai": [ LLMs, RAG, Vector DBs, MCP, n8n Agents ],
  "integration": [ REST, OData, SSO, LDAP, UAE Pass ]
status: open to AI-forward engineering roles
About

Low-code velocity,
engineering depth.

[ 01 / 06 ]

I build enterprise-grade applications that real organizations depend on — citizen portals for the Government of Dubai, a retirement system serving thousands of NYC public employees, and industrial monitoring platforms with real-time anomaly detection.

My edge is delivering at low-code speed without giving up engineering rigor: custom Java actions, OQL-optimized queries, microservices architecture, and hardened security with role-based access, SSO & LDAP.

Now I'm pushing into AI — exploring LLMs, RAG pipelines, vector databases and the Model Context Protocol to connect low-code platforms with intelligent, agentic systems.

3+
years_experience
9+
enterprise_apps_shipped
3
countries_served · UAE/USA/IN
40%
manual_effort_reduced
Experience

Where I've shipped

[ 02 / 06 ]
Aug 2025 — Present
Current
Tata Consultancy Services
Mendix Developer · System Engineer — Chennai
  • Built scalable Mendix applications for enterprise workflows — domain models, microflows and UI layers tuned for data integrity and performance.
  • Integrated Historian & REST APIs for real-time data exchange; authored a custom Java action enabling second-interval scheduling beyond native platform limits.
  • Automated multi-level approval workflows and Excel operations, cutting manual processing effort by an estimated 40%+, with OQL-tuned anomaly detection & alerting.
Dec 2024 — Aug 2025
Cognizant
Mendix Developer · Programmer Analyst — Chennai
  • Optimized large-scale dataset processing with Aspen & UPS stored procedures, reducing query execution time and improving pipeline throughput.
  • Designed ingestion & transformation pipelines via Database Connector, REST, OData and OQL for reliable enterprise integration.
  • Improved codebase maintainability by 25%+ using Sigrid (SIG/QSM) static analysis against industry quality benchmarks.
Jul 2022 — Oct 2024
RapidData Technologies
Mendix Developer · Software Engineer — Chennai
  • Delivered 4+ production Mendix applications end-to-end — domain modeling, REST integration and responsive UI across user & admin roles.
  • Owned the full SDLC: implementation, debugging and front-end development; partnered with BAs and QA to translate requirements into user stories.
  • Maintained consistent sprint velocity and on-time delivery across all assigned Agile projects.
Selected work

Things I've built

[ 03 / 06 ]
P-01Government

Amaf — Government of Dubai

UAE · Jun 2023 – Jan 2024

Architected a multi-service UAE government portal of 5 independent Mendix microservices for citizen-facing request management & document processing. Integrated UAE Pass national identity, payment gateways, SMS & email for an end-to-end transactional platform at public-sector scale.

MendixUAE PassMicroservicesRESTPayments
P-02Public sector

TRS Retirement System

New York City, USA · Dec 2024 – Aug 2025

Built a retirement management system for the NYC Teachers' Retirement System automating QPP eligibility for thousands of public employees. Automated benefit calculations, Final Average Salary computation & contribution tracking with OQL and microflow business logic — fully compliant with pension regulations.

MendixOQLStored ProcsWorkflow
P-03Industrial

Clarios — SPC Platform

USA · Aug 2025 – Present

Designed end-to-end domain models, microflows & validations for an industrial SPC application. Integrated the Historian API with a custom Java action for second-interval sampling, real-time anomaly detection with automated alarms, and multi-level workflow approvals with email notifications.

MendixHistorian APIJava ActionsOQL
P-04Enterprise

Digital Nucleus of Aarti

India · Oct 2022 – Aug 2023

Developed a centralized employee data management platform for Aarti Industries, consolidating data across the organization. Secure REST integration with 5+ internal systems, real-time push & email alerts, and Single Sign-On for seamless, governed authentication.

MendixSSORESTPush/Email
Skills

The stack

[ 04 / 06 ]
▹ languages
  • Python
  • Java
  • SQL
  • HTML
  • CSS
▹ platforms & frameworks
  • Mendix
  • Microflows
  • Nanoflows
  • OQL
  • Java Actions
  • Domain Modeling
  • REST / OData
▹ ai & emerging tech
  • LLMs
  • Prompt Engineering
  • RAG
  • Vector DBs
  • AI Agents (n8n)
  • MCP
▹ databases
  • SQL
  • MongoDB
▹ integration & security
  • REST APIs
  • OData
  • SSO
  • LDAP
  • OAuth
  • UAE Pass
  • Encryption
▹ tools
  • Git
  • Studio Pro
  • VS Code
  • n8n
  • Docker
Open source & recognition

Shipped to the community

[ 05 / 06 ]
Mendix Advanced Developer Certification
scalable enterprise Agile delivery
Spot Award — TCS
outstanding delivery contribution
Q2 Star Award · 2023
exceptional development contribution
Rising Star Award · 2024
on-time delivery across Scrum teams
Contact · [ 06 / 06 ]

Let's build
something intelligent.

sanjaisan843@gmail.com