Sagar Mahajan®
Available for Roles
AI/ML Engineer · Systems Architect

Hey there, I'm Sagar Mahajan.

10,480 Neural Nodes · 3D Active
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01 — Identity

Not just building AI systems — making them accountable.

I'm an AI/ML engineer focused on agentic systems, LLM orchestration, and applied computer vision — with full-stack engineering as the delivery layer that turns those systems into shipped products. Most of my recent work sits at the boundary between an autonomous agent and the real world it's allowed to act in: reviewing what an agent proposes before it runs, tracking what a model actually sees, and making sure the pipeline underneath stays honest at scale.

14Shipped Projects
04Skill Domains
27Core Technologies
3+Years Building
02 — Trajectory

Four roles, one throughline: ship it, then prove it's safe.

Full Stack Engineer
Fiverr — Freelance
Aug 2025 – Present · 1 yr 1 mo · Remote, Hyderabad

Built Sentinel, a three-stage guardrail agent for LLM-powered coding assistants. Sentinel sits between an LLM agent and its execution environment, reviewing every proposed action before it runs — integrating with Claude Code, Cursor, and CodeX.

Program CreationMEAN StackLLM Guardrails
Software Developer Intern
Indian Oil Corporation Limited
Jun 2024 – Jul 2024 · 2 mos · On-site, Guwahati

Automated web-based operations for internal platforms using Python & Flask, and ran performance testing that improved efficiency and software stability at an enterprise scale.

Web DevelopmentLLMOpsPythonFlask
App Developer Intern
Down Town Venture Labs & Kareng Technologies
Jul 2023 – Aug 2023 · 2 mos · Hybrid, Guwahati

Developed cross-platform web and mobile applications using web technologies and Android frameworks, designing user-friendly, responsive interfaces in close collaboration with peers.

Android FrameworksCross-Platform WebUI/UX Design
Web Developer & SEO Manager
Synar Technology — Part-time
May 2023 – Jul 2023 · 3 mos · Remote, Guwahati

Developed full-stack web applications using React.js & Flask, and implemented SEO strategies that increased web traffic by 15%.

React.jsFlaskSEO Optimization
03 — Technical Matrix

Four domains that compound into one practice.

01
AI & Agentic SystemsActive Synapse
Multi-Agent OrchestrationLLM OrchestrationFastAPI + OllamaOpenAI / Gemini APIsModel Context ProtocolWebSocket Streaming
02
Computer Vision & ML
YOLOv8 / YOLOv11OpenCVscikit-learnObject DetectionGesture RecognitionSignal Processing
03
Full Stack & Web
React 19Next.jsTanStack StartTypeScriptNode.js / ExpressTailwind CSSshadcn/ui
04
Architecture & DevOps
Microservices / GatewayRBAC + RLSPostgreSQLMongoDBSupabaseDockerCloudflare Workers
Domain 01 Synaptic Graph
04 — Selected Systems

Production Work & Architectures

Full Archive (14 Projects) →
LATO Validation Framework
AI / Agentic Infrastructure
01 / 14

LATO Validation Framework

Local-first multi-agent task orchestrator with real-time WebSocket token streaming, permission gating, and empirical action verification.

99.4% pipeline uptime
Regression testing: hours → 3.5 mins
View Case Study →
Sentinel Model Context Protocol
Agentic AI / Protocol Engineering
02 / 14

Sentinel Model Context Protocol

Three-stage safety guardrail agent for LLM coding assistants (Claude Desktop, Cursor, CodeX), shipped as a plug-and-play MCP plugin.

Zero unauthorized escapes / 100k payloads
<5ms gateway latency
View Case Study →
Sign Language Detection YOLOv8
Computer Vision Suite
03 / 14

Sign Language Detection YOLOv8

Real-time sign language gesture detection built on YOLOv8, tuned for edge deployment.

97.8% mAP@50
60 FPS on edge GPU
View Case Study →
High-Speed Object Detection YOLOv8
Computer Vision Suite
04 / 14

High-Speed Object Detection YOLOv8

General-purpose object detection pipeline with DeepSORT multi-target tracking for high-throughput video.

94.2% MOTA
120 FPS batch processing
View Case Study →
Automated Thief & Intrusion Detection YOLOv11
Computer Vision Suite
05 / 14

Automated Thief & Intrusion Detection YOLOv11

Security and surveillance anomaly detection system built on YOLOv11 for real-time alerting.

98.9% true intrusion detection rate
92% reduction in false alarms
View Case Study →
ECG Signal Feature Extraction & Classification
Computer Vision & Signal Processing
06 / 14

ECG Signal Feature Extraction & Classification

Signal-processing pipeline for extracting and classifying features from ECG data in real time.

99.1% R-peak accuracy on MIT-BIH DB
Real-time 12-lead processing
View Case Study →
Career OS Platform
Full Stack / Productivity
07 / 14

Career OS Platform

Career management microservices suite — gateway, worker, credential vault, web client, and browser extension.

3.5x faster application tracking
10,000+ resume parse iterations
View Case Study →
Examly Enterprise Assessment System
Full Stack / EdTech
08 / 14

Examly Enterprise Assessment System

Enterprise LMS & assessment platform with SSR, RBAC, and isolated code evaluation for live exams.

25,000+ concurrent exam sessions
<1.2s code submission speed
View Case Study →
Nexware Enterprise Resource Planning
Enterprise Software
09 / 14

Nexware Enterprise Resource Planning

Modular SaaS ERP with a dynamic workflow builder, multi-tenant RBAC, and analytics dashboards.

85% reduction in audit discrepancies
Closed monthly books 4 days faster
View Case Study →
Split Money Financial Manager
Web & Mobile App
10 / 14

Split Money Financial Manager

Real-time group expense tracking and splitting with graph debt simplification.

60% transaction reduction per group
$500k+ expenses processed
View Case Study →
Car Rental & Fleet Booking Engine
Full Stack / E-Commerce
11 / 14

Car Rental & Fleet Booking Engine

Booking platform for vehicle rentals with Stripe payments and optimistic locking against double-booking.

100% double-booking elimination
30% checkout conversion increase
View Case Study →
Legal Practice & Consultation Portal
Web Design & Development
12 / 14

Legal Practice & Consultation Portal

Animated portfolio and consultation site built for a legal professional.

98/100 Lighthouse score
45% more consultation inquiries
View Case Study →
Multi-Turn Conversational AI Bot
AI / Agentic Systems
13 / 14

Multi-Turn Conversational AI Bot

GPT-4-powered customer service bot for Split Money app support with multi-turn state.

View Case Study →
Voice Notes AI
AI / Agentic Systems
14 / 14

Voice Notes AI

AI-driven voice capture and processing pipeline built end-to-end in Python.

View Case Study →
← Swipe to explore (14 systems) →
05 — How I Think

Anagentthatcanactisonlyastrustworthyasthesystemwatchingitact.Idon'tshipautonomyIshipautonomywithawitness:somethingthatreviews,verifies,andcansayno.

01

Verify before you trust

Sentinel and LATO both exist because "the model said so" isn't good enough. Every proposed action gets reviewed against real constraints before it executes.

02

Latency is a feature

A guardrail nobody can afford to run gets bypassed. Sub-5ms gateway checks and 35ms end-to-end vision pipelines aren't vanity metrics — they're what makes safety usable.

03

Ship the whole stack

A model is not a product. I build the FastAPI gateway, the RBAC layer, and the React surface around it — because the delivery layer is where trust is actually earned.

06 — Direct Connect

Let's build systems
that verify themselves.

Open to conversations about agentic systems, Model Context Protocol (MCP) infrastructure, computer vision pipelines, or high-impact AI/ML engineering roles.

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