Open to Senior DevSecOps / Cybersecurity Roles

Stephen
Odunze

Cybersecurity Professional & DevSecOps Engineer

14 years securing infrastructure — from 5G networks to cloud-native CI/CD pipelines. I understand how systems are attacked because I spent a decade defending them, and I understand how they are built because I now build them.

CISA Security+ ISO 27001 LA DevNet Associate CCNA CC — ISC2 MSc Cybersecurity
14+
Years Enterprise
IT & Security
CISA
Certified Information
Systems Auditor 2025
10+
Cloud & DevOps
Projects Delivered
10
Published Medium
Articles

How I Work

01
Assess & Secure

Map risks before writing a line of config. Threat modelling, ITGC testing, and compliance alignment first — implementation second. Clarity prevents expensive rework.

02
Build & Automate

Infrastructure as code, CI/CD pipelines, and security embedded from the first commit — not bolted on later. Least-privilege IAM, secrets management, and reproducible environments by default.

03
Document & Deliver

Production-grade, version-controlled, and handed over clean — with architecture diagrams, runbooks, and audit trails that outlast the engagement.

Featured Projects

Production-grade work across DevSecOps, cloud security, and automation — built, broken, fixed, and documented.

SOAR Python AbuseIPDB

Automated Threat Detection Pipeline

Python pipeline monitoring auth logs in real time — extracts attacker IPs, queries AbuseIPDB for threat intelligence, calculates CRITICAL/HIGH/MEDIUM threat levels, and fires Slack alerts in under 10 seconds.

Security Impact Reduces mean time to detect from 28 min to under 10 sec. Demonstrates core SOAR pattern used by Splunk SOAR and Sentinel Playbooks.
Azure DevOps Terraform Ansible

EpicBook Dual Pipeline — DevSecOps Architecture

Two-pipeline deployment separating infrastructure (Terraform) from application (Ansible). SPN auth, Azure Secure Files, variable groups for secrets, NSG network isolation. Zero secrets in code.

Security Impact Database never publicly exposed. Infra credentials isolated from app team. Enterprise DevSecOps separation of concerns pattern.
AWS Network Security High Availability

Security Group Chaining — Project Phoenix

High-availability 3-tier AWS architecture using security group chaining. Each tier only reachable from the tier directly above it. Database unreachable from internet and from the frontend layer.

Security Impact Defence-in-depth at network layer. Prevents lateral movement — a compromised frontend cannot reach the database directly.
Docker Network Isolation AWS EC2

Production Docker Deployment — EpicBook

Docker Compose stack with two isolated networks — app_network and db_network. MySQL port 3306 never mapped to host. Three real security bugs discovered and fixed during build.

Security Impact DMZ architecture at container level. Database unreachable even from the proxy container. Secrets via .env — never in code.
Azure DevOps CI/CD Security Nginx

React App CI/CD Pipeline — Secure Deployment

4-stage pipeline with private IP SSH (hairpin NAT fix), passwordless sudoers scoped to specific commands only, and CI=true enforcement preventing silent test failures.

Security Impact SSH restricted to private IP. Sudo scoped — not blanket. Pipeline fails loudly on test failures — broken code never deploys.

Skills & Technologies

Hands-on experience across security, cloud, DevOps, and enterprise IT — applied in real projects and professional environments across 14 years.

🛡
Security & Compliance
Microsoft SentinelSplunkWazuhNessusQualysOpenVASMITRE ATT&CKCVSSSOARAbuseIPDBISO 27001NIST CSFPCI DSSNCSC CAFCIS ControlsITGC TestingIncident ResponsePen Testing
Cloud & Infrastructure
AzureAWSTerraformAnsibleAKSVNet / VPCNSGSecurity GroupsAzure DevOpsEC2RDSS3IAMEntra IDPrivate SubnetsSPN AuthSecrets Management
DevOps & Engineering
DockerDocker ComposeKubernetesCI/CD PipelinesGitHub ActionsPythonBashGitNginxLinuxMulti-stage BuildsNode.jsAgentic AIClaude CodeNetwork Engineering
🏛
Enterprise & Governance
Risk ManagementBIAAudit & AssuranceZero TrustPAMMFAServiceNow GRCPower BITabletop ExercisesBoard ReportingCisco FirepowerJuniper SRXFortinetSnortSuricata
Certified Information Systems Auditor
CISA · Jun 2025
ITGC testing at University of Aberdeen — real audit evidence, not just theory
ISO/IEC 27001:2022 Lead Auditor
Mastermind · Dec 2025
Supported ISO recertification at CyBlack — zero major findings
CompTIA Security+
Jul 2023
Threat analysis and incident response — CyBlack and MTN
DevNet Associate — Cisco
Apr 2024
Network automation — bridges infrastructure to code
CCNA: Enterprise Networking
Jan 2024
Enterprise network security from 10 years at Huawei
CC — Certified in Cybersecurity
ISC2 · Aug 2023
Cybersecurity foundation — governance and operations
MSc Cybersecurity
Robert Gordon University · 2024
Research-level security knowledge applied in every project
AZ-500 · API Security ASCP
In Progress · 2026
Azure Security Engineer + API Security Certified Professional

Published Articles

Real projects. Real failures. Real lessons. Written for engineers — readable by anyone.

About Me

Fourteen years in network infrastructure at Huawei and MTN gave me something most cybersecurity professionals don't have — I have actually built the systems I now secure. I have configured the VLANs, deployed the 5G cells, and written the firewall rules. I understand how things break because I watched them break at scale, in production, at 2am.

I moved into cybersecurity analysis at CyBlack and the University of Aberdeen — conducting vulnerability assessments, building risk control matrices, leading tabletop exercises, and supporting ISO 27001 recertification with zero major findings. My CISA certification and MSc in Cybersecurity formalised what years of operational experience had already taught me.

I am now a DevSecOps Engineer — building CI/CD pipelines, containerised deployments, Kubernetes clusters, and automated threat detection systems. I write about what I build, break, and fix. The goal is the same it has always been: make systems harder to attack by understanding them from the inside.

Oct 2025 – Now
DevSecOps Engineer (Internship)
The CloudAdvisory Oy
Apr – Oct 2025
Cybersecurity Analyst
University of Aberdeen
May 2024 – Mar 2025
Cybersecurity Analyst
CyBlack
Jan 2022 – Feb 2023
Network Security Analyst
MTN Communications PLC
Nov 2011 – Dec 2021
Network Engineer (10 years)
Huawei Technologies — 2G to 5G
Location
Edinburgh, Scotland, UK
Open to UK / Remote / Global roles
Education
MSc Cybersecurity
Robert Gordon University, 2024

BEng Electronics & Computer Engineering
Nnamdi Azikiwe University, 2009
Memberships
🔐 ISACA — Member since Jan 2025
🛡 ISC2 — Member since Jul 2023
💻 BCS — The Chartered Institute for IT
Community
🌍 iConnect Global Partners — Member
🎓 Cybersecurity Bootcamp — Programme
📚 Research Papers — In Development

Let's Build Something Secure

Senior DevSecOps Engineer · Security Architect · Cybersecurity Consultant
UK / Remote / Global — if you need someone who bridges 14 years of security expertise with hands-on engineering, let's talk.

View My CV

Stephen Odunze — CV
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CISA
Jun 2025
ISO 27001 LA
Dec 2025
Security+
Jul 2023
DevNet Associate
Apr 2024
CCNA
Jan 2024
CC — ISC2
Aug 2023
MSc Cybersecurity
RGU 2024
AZ-500
In Progress