Available for new opportunities

John Samuel J.

Technical Lead · Senior Software Engineer · Agentic AI

Building enterprise SaaS at the intersection of backend systems and AI. Deep expertise in Node.js, Python, Agentic AI (AWS STRANDS, Bedrock), SAP integrations, and WebSocket-driven architectures. 4.5+ years turning complex requirements into production-grade systems.

4.5+
Years Exp
5
Team Lead
5
Awards
4+
Major Projects
Get In Touch View Work
LinkedIn GitHub Credly
Technical Skills

The Stack

Languages
JavaScript Node.js Python
Backend
Express.js FastAPI REST APIs WebSockets
AI & Agents
AWS STRANDS Bedrock AgentCore LLMs
Cloud (AWS)
S3 EC2 SQS CloudWatch
Database
MongoDB Aggregation Pipelines Cross-collection Joins
Frontend
React.js Angular Figma
SAP & Protocols
SAP RFC noderfc pyrfc Message Queuing
Architecture & Ops
Microservices Event-Driven Caching Agile/Scrum
Career

Work Experience

Technical Lead — Agentic AI
2024 – Present
KaarTech · KTern.AI Product Team · Chennai, India
  • Spearheaded company-wide Agentic AI initiative leading a 5-member cross-functional squad — built SAP documentation agent using AWS STRANDS, AgentCore, and Bedrock with SQS throughput control and S3/MongoDB persistence.
  • Promoted to Technical Lead overseeing frontend and backend engineers across Digital Maps and Digital Mines — 60% leadership / 40% hands-on development.
  • Delivered AI-based insights for Digital Maps via AWS Bedrock-managed LLMs, introducing agentic capabilities as a core product feature.
Backend Technical Lead
2023 – 2024
KaarTech · KTern.AI Product Team · Chennai, India
  • Led 4 backend engineers across sprint planning, PR reviews, and architecture approvals using Agile/Scrum.
  • Engineered Portfolio Dashboard v2 with complex multi-workitem query builder, dynamic filter grouping, and cross-collection MongoDB aggregation — zero code changes per client with DB-driven configuration.
Senior Software Engineer
2022 – 2023
KaarTech · KTern.AI Product Team · Chennai, India
  • Architected and delivered Digital Mines V2 end-to-end in ~2 months — dual Express.js servers with WebSocket bridge to desktop SAP connector; zero SAP add-ons required. Earned Star of the Month on release.
  • Traveled to Bangalore to demo Digital Mines V2 to 2 enterprise clients; received strong positive feedback on zero-addon SAP connectivity.
  • Owned KTern Desktop Connector — SAP RFC integration bridging on-premise SAP to cloud via secure WebSocket tunnels.
  • Conducted full SAP system assessment for a Middle East enterprise client; received direct appreciation from their CTO.
Backend Developer
Jul 2020 – 2022
KaarTech · KTern.AI Product Team · Chennai, India
  • Engineered the first configurable Portfolio Dashboard (v1) with 10+ APIs, dynamic query formulation, and MongoDB aggregation layers — sole backend developer from design to production.
  • Rapidly ramped up on Node.js, MongoDB, Angular, and SAP fundamentals; contributed to bug fixes and feature enhancements across the product codebase.
Portfolio

Notable Projects

01 · Production
Agentic AI Documentation Agent
Production-grade agentic system that scans SAP custom object code, traces all dependencies, and auto-generates technical documentation, functional overviews, and test cases. SQS-controlled AgentCore throughput with S3 result persistence and MongoDB metadata tracking.
Python FastAPI AWS STRANDS Bedrock AgentCore SQS S3 MongoDB
02 · Enterprise SAP
Digital Mines V2 — SAP Transport Analysis
End-to-end architecture and backend of a SAP Transport Request analysis platform — test-fit/gap generation, compatibility checks, and dual-server WebSocket bridge to live SAP systems. Zero additional SAP add-ons required on customer systems.
Node.js Express.js WebSockets MongoDB Figma SAP RFC
03 · Data Engineering
Configurable Portfolio Dashboard (v1 & v2)
DB-driven KPI dashboard engine with 10+ APIs, dynamic multi-workitem query builder, complex filter grouping, and cross-collection aggregation. Dashboards spin up from configuration with zero per-client code changes. Comparable in scope to Azure DevOps dashboards.
Node.js Express.js MongoDB Aggregation REST APIs
04 · In Progress
Digital Maps Desktop Execution Engine
One-click EXE automation replacing manual Customer Success execution — handles dependency orchestration, error and backup policies (DB and S3), on-premise and cloud support, and JSON-driven multi-customer configuration.
Node.js Python JSON Config AWS S3 MongoDB
Recognition

Awards & Honours

🏆
Engineering Champion
KTern.AI · 2024
Exceptional technical leadership and delivery across product streams.
⚡
Technical Maestro
KTern.AI · 2023
Deep technical ownership and outstanding problem-solving capability.
⭐
Star of the Month ×2
KTern.AI
Digital Mines V2 release and Digital Maps execution engine milestones.
🌐
SAP Hack2Build Finalist
SAP Global Hackathon · Oct 2023
Selected as finalist in SAP's global hackathon competition.
🤝
Cultural Award ×2
KTern.AI
"Result-Driven Execution" & "One for All, All for One" — team culture excellence.
Credentials

Certifications

IBM AI Product Manager Professional Certificate
IBM / Coursera
Feb 2026
Product Management Essentials
IBM / Coursera
Feb 2026
Generative AI Essentials
IBM / Coursera (Credly)
Mar 2025
SAP Hack2Build — Hackathon Finalist
SAP (Credly)
Oct 2023
Problem Solving – Basic
HackerRank Certified
Jun 2020
Python – Basic
HackerRank Certified
Jun 2020
Academic

Education

8.6
GPA / 10
Bachelor of Engineering
Electrical & Electronics Engineering
Jeppiaar Engineering College
Anna University Affiliated · Chennai, India
Graduated Jun 2021
Let's Connect

Get In Touch

Open to new opportunities in software engineering and technical leadership. Always excited to discuss Agentic AI, backend systems, or SAP integrations. Reach out — let's build something great.

📞
Phone
+91 89460 45290
✉️
Email
jjohnsamuel21@gmail.com
💼
LinkedIn
linkedin.com/in/john-samuel-j
🐙
GitHub
github.com/johnsamuelj
📍
Location
Chennai, Tamil Nadu, India
Ready to ship something remarkable?
Whether it's an Agentic AI system, a backend architecture challenge, SAP integration, or a cross-functional team that needs a strong technical leader — I'm your engineer.
Send a Message ↗