AI Engineer & Full Stack Developer

Raj Patel

AI Engineer and Full Stack Developer with 6+ years of experience delivering enterprise-grade systems across Banking, FinTech, EdTech, and SaaS — including 3+ years specialized in GenAI and Agentic AI engineering.

6+

Years experience

3+

Years in GenAI

5

Featured case studies

Raj Patel - AI Engineer & Full Stack Developer

About

Engineering AI that ships in production

Enterprise AI engineering with a full-stack foundation — focused on measurable impact in banking, fintech, and SaaS.

01

Agentic AI & GenAI

LangGraph, LangChain, RAG, MCP, and Azure OpenAI — POC to production in regulated environments.

02

Full Stack Engineering

Python, FastAPI, React, and Java Spring Boot — end-to-end products with strong API and UI craft.

03

Enterprise & Banking

TD Bank procurement platforms, PKI, Kafka, SAML/OIDC — security-first systems at scale.

AI Engineer and Full Stack Developer with 6+ years of experience delivering enterprise-grade systems across Banking, FinTech, EdTech, and SaaS — including 3+ years specialized in GenAI and Agentic AI engineering. Architected and delivered production-grade agentic AI systems at TD Bank, including the Unified Storefront (USF) — a MCP-based multi-agent procurement platform targeting $2M+ in annual savings — and Contract Buddy, an AI-powered contract intelligence platform for procurement and legal teams. Hands-on expertise in LangChain, LangGraph, RAG pipelines, Azure OpenAI, and Vector Search, with a track record of taking LLM-powered products from POC to production in regulated fintech environments. Strong full-stack foundation in Python, FastAPI, React, and Java Spring Boot, with enterprise security depth across PKI, JOSE, IBM MQ, Kafka, and SAML/OIDC.

Projects

Selected work

Flagship builds across agentic AI, EdTech, and enterprise SaaS.

CoTeach AI

CoTeach AI

Architected and delivered a multi-modal, agentic GenAI-powered LMS — rapid course generation from PDFs, emails, videos, and 10+ knowledge sources. Built LangGraph RAG with Pinecone, LlamaIndex, and GPT-4. 150+ FastAPI endpoints, Notion-style editor, 2 weeks → 5 minutes course creation.

FastAPI
LangGraph
LangChain
Pinecone
LlamaIndex
GPT-4
OpenAI
React
Notion
Whisper
AWS
Docker
CI/CD
RAG
Jackett

Jackett

Led an Angular MVP and React Native mobile app for an AI assessment platform — helping teachers auto-generate quizzes, digitize STEM questions, and analyze class performance. Contributed to $1.3M seed funding.

Angular
React Native
Node.js
MongoDB
AWS
Docker
TypeScript
Segment.io
Clisynk

Clisynk

Led frontend development of Clisynk, a fully functional enterprise CRM — contacts, Kanban pipelines, invoicing, appointments, team chat, and email broadcasting in one workspace. Cut UI dev time by 40% with reusable Angular components.

Angular
NGXS
RxJS
Node.js
MongoDB
TypeScript
IQArena (EdTech Platform)

IQArena (EdTech Platform)

Developed admin panel UI with features to publish exams, track payments, and manage multi-role authentications. Built a student performance analytics dashboard enabling teachers to identify strengths and gaps, powered by reactive push-based architecture.

Angular
RxJS
Firebase
NGXS
TypeScript
Mobile UI
Vaccsynk (Healthcare Platform)

Vaccsynk (Healthcare Platform)

Built a vaccine scheduling platform with dynamic Angular Form Builder forms to collect vaccination data at scale. Developed role-based admin panels for pharmacy, facility, and admin users, streamlining vaccine distribution and appointment scheduling.

Angular
Form Builder Library
TypeScript
RxJS
Healthcare
Role-Based Access

Testimonials

What colleagues say

Peer and leadership recognition from TD Appreciate — real messages from colleagues I've worked with at TD Bank.

RZ
Ricky Zaman

Managing Engineer, Global Technology Solutions

Raj, your leadership and dedication during the migration from Power Apps to the React-based USFF app have been truly commendable. The quality of your work, technical expertise, and consistent commitment are making a significant impact on the success of this transition. Your efforts have greatly benefited the entire team, enabling smoother processes and better outcomes. Keep up the great work!

LW
Laura Wyatt

Group Product Owner, Technology Lead

Raj!!!! I want to recognize you for truly going above and beyond since joining the team back in November! With very little direction, you independently designed and built a React based chatbot and model for Unified Storefront that is fully shippable, production ready, and competitive with leading market solutions, all in one month. That alone is impressive. What really stands out is your end to end ownership. You did not just build an app. You took accountability for infrastructure, stick handled workbacks, drove delivery, and made strong technical decisions throughout. You operated with the mindset of a tech lead, not just a developer. The speed and quality of what you delivered, including cutting edge features and thoughtful design choices, highlight your strength in technical design and architecture. Just as important, you are incredibly easy to work with. You are professional, proactive, and a strong partner to the team. That combination of technical excellence and collaboration is rare. You have a very bright future ahead, and I am excited to see how you continue to grow as a designer, architect, and leader. Thank you for raising the bar for the entire team. Congrats and THANK YOU! Laura

BR
Brittney Ramsubick

Software Engineer

Hey Raj, I just wanted to say thanks for your leadership and let you know how inspiring it's been working around you on USF. Even in the short time we've connected, I've learned a lot from you, especially about the TD tech ecosystem, and it's genuinely influenced how I think about my work. The way you approach problems and think through the next-gen USF solution has pushed me to grow as a developer and technical problem-solver. You've been really patient and generous with your knowledge, and that hasn't gone unnoticed. I'm really looking forward to working more closely together and continuing to learn from you.

ML

Mark Lopez

Technology Lead · CCPG

Before coming to the team in CCPG.. Our team were facing architecture barriers in regards to one of our CCR decommission features with our external vendors and encryption/decryption of PCI data. Since his arrival, he has made a significant impact to our delivery. He has taken dev lead role in the feature and resolved our encryption barriers by defining and implementing the encryption/decryption in the LAAPI code as well as provided KT and code methods to our QE/DEV team. With his assistance, we were able to implement the encryption/decryption within our existing automation scripts allowing our team to automate >80% of all our test cases which reduced our testing time from ~15 mins to <1 min per test case. This has allowed us to complete >200 test cases within a single sprint with ease! Our QE automation achievement would not have been possible if not for Raj's leadership and impact! Thank you Raj! - and Wish you the best in your new team!

SM
Sandra Maldonado

Sr. Business Systems Analyst · TD Bank

I would like to appreciate the great work of Raj. Since he joined our team a few months ago, he has always been willing to learn and support the team. He has become a key team player, taking a relevant leadership role on pod 1. In addition, I would like to highlight the full ownership he has taken on the new encryption process we must implement. He has taken the time and initiative to learn by himself, implement encryption and share the knowledge with the team.

AV
Andrew Van

Engineer I, TD Securities

Raj has been instrumental in the success of this team. Over the past year, he played an important role in the migration of VSP to Azure. In doing so, he has become our resident expert on all things VSP. Recently, we had a PROD incident where Raj took lead on, and was able to understand and coordinate a solution. I have no doubts for Raj when it comes to VSP, and I believe he exhibits the shared commitment "Act like an Owner"

SM
Shawn McFarlane

Technology · VSP / Azure

Earlier this year, Raj "Executed with speed and impact" where his actions were instrumental in resolving a web of networking challenges that plagued and prevented connectivity / testing between a vendor application and TD. Acting like an owner, Raj was pivotal to the migration efforts of VSP to Azure adapting to challenges that presented whether that be the DN changes that impacted testing for Azure deployments, working through DNS internment issues and working to help identify session resolution, ie Redis cache. Lessons that extend beyond his asset of work to others with the pod. Continue to operate with speed and ownership in your years to come. Best, Shawn

PB
Priyanka Basani

Solution Designer / Developer

Raj's performance has been exceptional throughout the VSP migration journey. His enthusiasm for learning consistently impressed me. He took full ownership of his tasks, delivering each one with speed and quality. As the Azure migration was entirely new to all of us, Raj took the initiative to research various unknowns, such as Datadog log configuration, dashboards, monitors, certificate processes, vault and EDP pipeline deployments. When faced with the PCOE issue, Raj quickly came up with a solution within a short timeframe. He put in extra hours and collaborated closely with the PCOE team to set up a performance testing environment in his local to replicate and resolve the issue. His dedication to addressing this challenge was truly commendable. Raj also ensured thorough documentation for every tech stack upgrade he worked on. He shared the lessons learned and actively reviewed his work with the team, promoting a culture of transparency and collaboration. Even for post-deployment issues, Raj demonstrated a steady commitment by working overtime to troubleshoot and analyze root causes. His detailed and methodical approach always stood out. Raj consistently displayed the "Act like an owner" mindset, demonstrating this shared commitment on multiple occasions. Along with VSP migration activities, he supported development and deployments for features like Aeroplan disclosures, Megazord etc. He did handle all of them with no trouble. I wholeheartedly wish him continued success.

YY
Yingyi Ye

Technology · TD Bank

A Team is more than the sum of its parts. A team is a small number of people with complementary skills who are committed to a common purpose, set of performance goals, and approach for which they hold themselves mutually accountable. The essence of a team is common commitment. Thank YOU for everything you do each and every day to make TD an amazing place to work. What YOU do every single day counts! YOU make TD the Better Bank. Thank YOU for your hard work and dedication to the TEAM. #WeMakeTD #ProudToBeTD

Experience

Where I've worked

Six years across banking, EdTech, and SaaS — from intern to leading agentic AI platforms.

T

Architected and spearheaded end-to-end development of the Unified Storefront (USF) Agentic AI Procurement Platform — a multi-agent, MCP-based system with a central orchestrator connecting to specialized sub-agents across SAP Ariba, Coupa, Tririga, and Rahona (TD internal data lake), enabling autonomous cross-system data retrieval, entity extraction, and intelligent intake form prefill across TD's technology LOB teams.

Engineered a self-serve procurement intake pipeline using conversational AI to guide LOB teams through structured request creation, submitting completed forms into SAP Ariba via a UiPath RPA automation layer — eliminating manual vendor manager dependencies and targeting $2M+ in projected annual cost savings.

Contributed to key AI architecture decisions and built end-to-end GenAI retrieval pipelines using Azure OpenAI and LangGraph, implementing Azure AI Search for semantic search, policy validation, and explainable field mapping — with an Agent-to-Agent (A2A) communication model on the forward roadmap.

Built an enterprise GenAI-powered contract intelligence platform (Contract Buddy) enabling automated analysis of NDAs, SOWs, MSAs, and vendor agreements — delivering clause-level risk scoring, semantic policy validation, and structured deviation reports for procurement and legal review teams.

Delivered both platforms as production-grade full-stack applications (React + FastAPI) as the primary engineer from POC to production, released under TD's Large GTS Technology Product Group.

Designed real-time procurement data synchronization across SAP Ariba, Coupa, and Rahona via Kafka, enabling near real-time event-driven pipelines across enterprise procurement systems.

Led a team of 10 engineers to deliver microservices-based banking solutions with API Gateway, distributed tracing, and secure B2B connectivity, driving 100% digitalization and automation.

Coordinated planning, estimation, and execution with product, vendors, and architects, resolving compliance and multi-vendor challenges to ensure on-time delivery.

Designed and implemented enterprise-scale PKI encryption using JOSE (JWT + JWE) and mutual TLS for secure PCI data transmission.

Migrated legacy SOAP services (via IBM MQ and TSYS) to modern REST APIs in Spring Boot, enhancing performance and interoperability.

Resolved complex B2B SSO workflows with SAML/OAuth2, integrating Azure infrastructure for secure identity and secrets management.

Migrated app from OpenStack to Azure with zero downtime; upgraded Java 1.8→17 and Spring Boot 2→3.

Integrated Vault and Redis, reducing auth errors by 20%; built Datadog dashboards for observability.

Automated config deployment in Python, cutting time from 2 hours to under a minute.

Implemented form pre-population logic for critical credit workflows, saving 1,000+ manual hours annually.

Resolved a high-priority issue that stalled UAT for 3 months—cleared it within 4 weeks to enable successful deployment.

Earned 3× Great Work Awards, 2× Quarterly Awards, and TD Above and Beyond Award for key project wins.

Collaborated with Senior lead developer and learnt best practices to follow while writing automation test cases.

Automated 60+ complex automation test cases that ensured delivering 100% correctness of the application.

Developed 5+ reusable functions for automation test cases that managed to reduce 7000+ lines of code and 300+ hours of manual development time and boost productivity by 20%.

J

Led development of an Angular MVP in 3 months, then migrated features to a React Native app with a team of seven, securing $1.3M in seed funding.

Directed hiring, daily stand-ups, and mentoring while completing a full production cycle in under 2 months.

Built an image-to-LaTeX pipeline to digitize and render STEM equations with 100% accuracy, improving accessibility, UX, and boosting app performance by 30%.

Developed a high-performance Node.js web scraping service to extract 1.5M+ questions from Byju's in 2 days by orchestrating 40+ Dockerized instances with MongoDB storage; integrated IP rotation service to bypass rate limits and ensure uninterrupted parallel scraping.

Implemented CI/CD pipelines with AWS (Amplify, EC2, S3, RDS, SES, SNS), streamlining deployments and managing production systems.

Integrated 250+ analytics events via Segment.io, deep linking with Branch.io, and feature flags with Split.io to enhance engagement and rollout safety.

P

Led a team of 5 developers to deliver multiple Angular-based projects—including eCommerce, CRM, and event platforms—boosting client operational efficiency by 30%.

Owned frontend development and built Angular apps from scratch for Vacsynk (vaccination management), Clisynk (CRM), and IQArena (exam portal), significantly improving UX and system reliability.

Interfaced with clients to capture evolving business needs, ensuring 100% solution alignment through Agile sprints and continuous feedback loops.

Built a reusable UI component library and modular architecture using Angular, NGXS, and RxJS, cutting dev time by 40% and improving performance by 20%.

A

Developed and maintained three Angular and .NET projects, ensuring robust performance and scalability.

Integrated Microsoft Location APIs and government COVID-19 data to assess place safety based on geolocation.

Built a collaborative Machine Learning platform web app in Angular with interactive UI and reusable components for data scientists and developers.

Implemented a Python scheduler to automate data fetching, processing, and database updates.

Skills

Technologies and tools

Languages, frameworks, cloud platforms, and AI tooling across production systems.

Core stack

Java
Python
Typescript
Javascript
C
Cpp
Html
Css
Angular
React
Next.js
Redux
Node.js
Express
Flask
Django
FastAPI
Spring
Mysql
Mongodb
PostgreSQL
Sqlite
Azure
Aws
Docker
Git
Github
Gradle
Jenkins
Maven
Redis
Kafka
Graphql
Bash
Linux

AI & GenAI Engineering

LangChain
LangGraph
Vercel AI SDKVercel AI SDK
LlamaIndex
Pinecone
Azure OpenAI
RAG
MCP

Enterprise & platform

React Native
GitHub Actions
Terraform
Rabbitmq
Powershell
Selenium
Zustand
MSSQL
Tomcat
IBM MQ

Contact

Let's build something together

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Meeting types

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