Cybersecurity · AI Security · Cloud

Ranjeet Reddy Manchana

I'm an Information Security Analyst

I help organizations detect threats, protect critical assets, and automate security operations. With a background in security engineering, threat analysis, and compliance support, I am focused on building resilient security solutions for dynamic environments.

M.S. Cybersecurity AWS Certified Cloud Practitioner (ISC)² CC
Portrait of Ranjeet Reddy Manchana
Los Angeles, CA
01 / About

About me

As a Master's graduate in Cybersecurity, I am passionate about staying ahead of emerging threats, contributing to security operations in dynamic environments, and bridging the gap between security strategy and execution.

Whether it is automating security tasks, collaborating on risk assessments, or supporting incident response, I am focused on delivering value through technical skill, risk-based thinking, and continuous learning.

Career goals

I aim to advance in cybersecurity operations with a focus on threat detection, incident response, security automation, and engineering resilient defenses. I strive to leverage cloud security, risk management, and AI-driven security solutions to build robust security architectures, streamline response workflows, and strengthen organizational resilience against evolving threats.

02 / Skills

What I work with

AI Security

Keeping sensitive data out of LLM workflows: screening prompts before they leave, classifying content with structured models, and running private retrieval-augmented agents on local models.

  • LLM data-leak prevention
  • Prompt screening
  • Local LLMs & RAG
  • Fail-secure design
See SieveGate →

Cybersecurity Operations

Incident detection and response, security log analysis, detection logic, threat intelligence, vulnerability management and drafting information security documentation.

Cloud Security

  • AWS Security
  • EC2 Security
  • CloudTrail
  • GuardDuty
  • Lambda
  • S3 Bucket Policies

SIEM & Analytics

  • Splunk Enterprise Security
  • Log Analysis
  • Security Dashboards

Programming & Automation

  • Python
  • Bash Scripting
  • Lambda Automation

Frameworks & Compliance

  • NIST CSF
  • NIST 800-53
  • CIS
  • MITRE ATT&CK
  • TCP/IP
  • TPN
  • HIPAA
  • PCI-DSS
03 / Projects

Things I've built

From cloud incident automation to a gate that keeps secrets out of LLM prompts.

Saturday threat-intelligence assistant interface
Local LLMRAGChromaDBFastAPI

Private Threat Intel Agent with RAG (Saturday)

A private, secure, AI-powered research assistant for threat intelligence. Leverages local LLMs and RAG to answer questions from internal datasets without exposing data to the cloud.

View project →
GuardDutyEventBridgeLambdaSNS λ FINDING→ ISOLATE → NOTIFY EC2 ISOLATED
AWS LambdaGuardDutyEventBridgeSNS

Cloud Incident Response Automation

Developed an automated cloud incident response system using AWS Lambda, GuardDuty, and EventBridge to detect threats, isolate compromised resources, and trigger real-time alerts. Streamlined security operations by reducing manual intervention and enhancing response speed within AWS environments.

View project →
ClientAPI GatewayLambdaDynamoDBS3 λ IAM-BASED ACCESS SERVERLESS · NO SERVERS TO PATCH
LambdaAPI GatewayDynamoDBS3 · IAM

Secure Student Data Retrieval (Serverless AWS)

Built a secure student data retrieval system on a serverless AWS architecture using Lambda, API Gateway, DynamoDB, and S3. Enabled low-latency data access with IAM-based access controls and real-time monitoring.

Watch the demo →
car 91% · light truck 87% · heavy car 74% · medium YOLO · ONNX · IN-BROWSER TOTAL 24
OpenCVYOLOONNX RuntimeLive demo

Real-Time Vehicle Detection and Classification System

Created a real-time system using OpenCV and deep learning (CNNs) to detect, count, and classify vehicles from traffic camera footage. Try it yourself: upload a video and watch it run in your browser.

Try the demo →
04 / Contact

Let's talk.

If you'd like to connect or discuss opportunities, feel free to reach out using the form, or find me below.