Open to Opportunities

Hello, I'm Stefan.

Security Consultant | Cloud Security Engineer | Blockchain Enthusiast

Security professional with 16+ years of experience securing federal and enterprise environments. I specialize in cloud security architecture, NIST RMF compliance, and building DevSecOps pipelines that harden infrastructure without slowing teams down.

AWS Security SpecialtyCISM & CISA CertifiedZero Trust Architecture
Stefan James

Stefan James

Security Consultant & Cloud Security Engineer

About

Enterprise Security, Cloud Scale

I'm a Security Consultant and Cloud Security Engineer with 16+ years of hands-on experience protecting federal agencies, healthcare systems, and enterprise environments. My work spans cloud security architecture, NIST RMF compliance, vulnerability management, and DevSecOps — with a focus on building security programs that actually scale.

With a deep background in AWS Cloud Security, NIST RMF, and NIST 800-53 assessments, I bring an enterprise-grade mindset to every engagement. I don't just check compliance boxes — I look at the system as a whole and build controls that reduce real risk.

Outside of enterprise security, I'm expanding into Web3 security — applying vulnerability assessment methodology to smart contract auditing and decentralized applications.

Cloud Security

AWS & Infrastructure Protection

NIST Compliance

RMF & 800-53 Standards

DevSecOps

CI/CD Security Integration

Threat Models

STRIDE & DREAD Analysis

Projects

Things I've Built

Security assessments, cloud automation, DevSecOps tooling, and Web3 security research.

View All on GitHub

AWS Cloud Security Assessment

End-to-end AWS cloud security assessment aligned with NIST 800-53, HIPAA, and IRS Pub 1075 frameworks. Includes audit checklist, remediation roadmap, and sample security report deliverable.

AWSNIST 800-53HIPAAIRS 1075

AWS Lambda Inactive IAM Users

Automated Lambda function that detects and optionally disables IAM users inactive for 90+ days. Enforces least-privilege hygiene across AWS accounts.

AWS LambdaIAMPythonAutomation

Pharma Chain — Blockchain Supply Chain DApp

Web3-enabled pharmaceutical supply chain tracking application. Conducted a comprehensive security audit of Solidity contracts, identifying access control vulnerabilities and publishing a structured audit report aligned with SWC Registry standards.

SolidityReactTypeScriptHardhat

Smart Contract Security Audit Portfolio

Public portfolio documenting smart contract security assessments and vulnerability findings. Combines manual code review with automated analysis using Hardhat, Foundry, and Slither.

SolidityFoundrySlitherSecurity

SonarQube CI/CD Integration

Jenkins pipeline integration with SonarQube SAST/DAST tooling. Blocked 600+ critical security defects pre-production and enforced DevSecOps compliance across build pipelines.

JenkinsSonarQubeDevSecOpsCI/CD

Invariant Shield

Security-first smart contract audit platform and consulting site. Comprehensive service showcase for DeFi protocol reviews, threat modeling, and cloud & Web3 security.

ReactTypeScriptTailwindFramer Motion
Skills

Tools & Technologies

The stack I use to secure, assess, and automate across cloud and enterprise environments.

Compliance & Frameworks

NIST SP 800-53 / 800-171FedRAMPIRS Publication 1075DISA STIGNIST CSFZero Trust Architecture

Security Tools

TenableQualysAquaSecZscalerADAudit PlusDBProtectCrowdStrikeMicrosoft DefenderSplunkCyberArkSentinelOneOneTrustBitSightMicrosoft Threat Modeling Tool

Cloud & Infrastructure

Amazon AWSMicrosoft AzureVMwareCitrixActive DirectoryDatabricks

DevSecOps & CI/CD

JenkinsBitbucketGitHubGitLabSonarQubeDockerAnsibleTerraformOWASP

Collaboration & ITSM

Microsoft Office 365JiraConfluenceServiceNowGrafanaOSTicketCSAM

Web3 & Blockchain

SolidityHardhatFoundrySlitherMythrilEthers.js

Certifications

AWS Security SpecialtyCCSKAWS Solutions ArchitectAWS Developer AssociateAzure Security EngineerCISMCISACRISCCASP+ CECySA+Security+ CEPenTest+Network+Project+LPI Linux EssentialsZscaler Zero TrustCyberArk Trustee
Experience

Career Timeline

16+ years delivering measurable security impact across federal agencies, healthcare, and private sector.

Aug 2021 – Present

Security Consultant & Cloud Security Engineer

James Consulting Group, LLC

Clients: IRS, USDA, HHS, NIH, SEC, VA, USPTO, USCIS, DHCF, Prince George's County, State of Maryland

  • Directed security control assessments for IRS and NIH systems, validating compliance with NIST 800-53, FedRAMP, HIPAA, and IRS Pub 1075, securing multiple ATOs across hybrid AWS/on-prem environments.
  • Performed AWS cloud security assessments, reviewing IAM, encryption, logging, and networking; authored SSPs, POA&Ms, SARs, and CAPs supporting ATO packages.
  • Administered AWS Security Hub and GuardDuty, maintaining 90%+ compliance and prioritizing remediation timelines (critical <14 days).
  • Automated POA&M creation, evidence reviews, and audit reporting using Generative AI (OpenAI, Claude), cutting audit prep time by 50%.
  • Integrated Jenkins with SonarQube (SAST/DAST) in CI/CD pipelines, blocking 600+ vulnerabilities pre-production.
RMFNIST 800-53FedRAMPAWSDevSecOpsAI Automation
Sept 2020 – Aug 2021

Sr. Cyber Security Engineer

Infor, Inc

Infor Government Solutions (IGS)

  • Conducted vulnerability assessments using Nessus, Qualys, DBProtect, and AquaSec across government customer systems, networks, and applications.
  • Executed a cost-optimization initiative implementing Nessus Manager instead of DBProtect, achieving $204K in savings.
  • Performed security control assessments, conducted interviews, reviewed documentation, and validated compliance with NIST controls.
  • Generated Security Assessment Reports (SARs) documenting findings, vulnerabilities, and residual risks in compliance with NIST guidelines.
Vuln MgmtNessusQualysSCANISTFedRAMP
Jan 2020 – Sept 2020

DevSecOps Engineer

Infor, Inc

Learning Management Systems (LMS)

  • Integrated SonarQube SAST in Jenkins CI/CD pipelines, blocking 600+ critical security defects pre-production.
  • Developed automated CI/CD build/deployment pipelines using Jenkins, Terraform, and GitLab.
  • Collaborated with development teams to remediate security issues identified by SonarQube, ensuring secure software delivery.
  • Conducted security training and awareness programs for development and operations teams.
  • Assisted in GitLab setup, installation, and migration projects; managed users, groups, projects, upgrades, and patches.
JenkinsSonarQubeTerraformGitLabCI/CDSAST
Jan 2018 – Jan 2020

Security Control Assessor (FedRAMP, NIST SP)

Veterinarian Electronic Assistant (VEA)

Clients: NIH (OLAW)

  • Supported security control assessments for information systems using NIST SP 800-53 Rev. 4 security controls.
  • Developed security authorization documents including SSPs, POA&Ms, Risk Assessments, and security control baselines.
  • Collaborated with ISSOs to create and manage POA&M items for system vulnerabilities and track remediation to closure.
NIST 800-53FedRAMPSCASSPPOA&M
Mar 2016 – Jan 2018

Sr. Cyber Security Specialist

Grove Research Solutions, Inc

Clients: NIH (NHLBI)

  • Analyzed log files from host, network, firewall, and IDS sources to identify threats to network security.
  • Performed vulnerability scans and continuous monitoring using NIST 800-137 with Nessus across Windows and Linux environments.
  • Conducted risk and vulnerability assessments of planned and installed information systems to identify protection needs.
NIHNIST 800-137NessusIncident ResponseFISMA
Mar 2014 – Mar 2016

Sr. Cyber Security Specialist

Medical Science & Computing, LLC

Clients: NIH (NHLBI)

  • Ran ACAS scans, monitored environment for abnormalities, and submitted hardening/patching reports to senior admin.
  • Implemented firewall blocks on malicious domains, emails, URLs, hashes, and IOCs to prevent enterprise compromise.
  • Collaborated with ISSO on cybersecurity analysis of organizational policies and procedures for compliance.
ACASActive DirectoryFirewallNIHCompliance
Oct 2013 – Mar 2014

Information Security Specialist

Collabera, Inc

Clients: USPTO

  • Monitored SIEM and logging environments with Splunk for security events, threats, and intrusions.
  • Performed security evaluations, audits, and server logging reviews to verify secure operations.
  • Conducted security assessments to determine effectiveness and compliance of implemented security controls.
SplunkSIEMUSPTOSecurity Assessments
Aug 2007 – Aug 2013

IT Specialist

U.S. Department of Agriculture

  • Implemented a custom web application converting hard copy personnel folders to electronic personnel folders (e-OPF).
  • Managed user accounts, permissions, and access rights; enforced security policies and authentication controls.
  • Deployed server and OS patching, maintained IT asset inventory, and ensured compliance with licensing agreements.
USDASystem AdminAccess ManagementFISMA
Contact

Ready to Connect?

Whether you're looking for a Security Consultant, need a cloud security assessment, or want to collaborate — I'd love to hear from you.

Bowie, MD • Washington DC Metropolitan Area

My Mission

“To bring the maturity, rigor, and process of enterprise cybersecurity to every organization — enabling teams to move fast without compromising their security posture.”