Ryan Johnston

CTO

Belfast, Northern Ireland, United Kingdom5 yrs 11 mos experience

AI ML PractitionerAI Enabled

Key Highlights

Expert in cloud security and DevSecOps practices.
Strong background in Kubernetes and CI/CD automation.
Proven track record in managing high-stakes escalation events.

Stackforce AI infers this person is a Cloud Security Expert with a focus on DevSecOps and automation in enterprise environments.

Contact

Skills

Core Skills

Cloud SecurityDevsecopsThreat AnalysisSiem Management

Other Skills

KubernetesGitOpsTerraformCI/CDAWSAzureGCPSAML/OIDCArgoCDFluxContainer SecurityAI ToolingPostgreSQLDockerLarge Language Models (LLM)

About

👾Cloud Security Expert at Wiz (acquired by Google). 🎓 Queen's University of Belfast - Computer Science 🏆 AWS, Terraform, Kubernetes, Git, CI/CD, ArgoCD, Helm, Flux, Python/Go, Docker, Agentic AI, LLM RAG ☁️Strong experience with cloud technologies and securing them as well as micro-service engineering and strong experience with AWS and experience with GCP/Azure, focusing currently on AI workflows and building tools for automation. 🧑🏽‍🎓I am a keen Cloud Security / DevSecOps Engineer who regularly shares my projects and blog posts with the community. 🔗 orbit.rmjj.co.uk AWS - EC2 - IAM - EKS - VPC - CloudFormation - ECR - API Gateway - Lambda

Experience

5 yrs 11 mos

Total Experience

3 yrs 10 mos

Average Tenure

2 yrs 1 mo

Current Experience

Wiz

2 roles

Escalation Expert - CTO Team

Promoted

Jan 2026 – Present · 4 mos · United Kingdom · Remote

Cloud Solutions Engineer

Apr 2024 – Jan 2026 · 1 yr 9 mos · United Kingdom · Remote

Acquired by Google.
Kubernetes/EKS/OpenShift
GitOps
Terraform
CICD
Automation Solutions
AWS, Azure, GCP
SAML/OIDC
ArgoCD/Flux
Container Security
AI Tooling (Agentic Workflows, MCP Tooling, Prompt Engineering)
Cloud Security Support Engineer with deep technical expertise in cloud-native security and CNAPP solutions. Skilled in Kubernetes (EKS, OpenShift), GitOps (ArgoCD, Flux), Terraform, CI/CD automation, Helm deployments, and identity management (SAML/OIDC, RBAC, SSO).
Managed high-stakes escalation events and provided guidance to strategic enterprise/majors accounts, collaborating closely with SOC teams, CISOs, DevOps, and cloud security engineers to ensure operational stability and secure cloud deployments.

KubernetesGitOpsTerraformCI/CDAWSAzure+8

Ibm

Advanced Threat Support Engineer

Jun 2020 – Apr 2024 · 3 yrs 10 mos · Belfast, Northern Ireland, United Kingdom · Hybrid

Responsible for maintaining customer SIEM systems on-prem and on cloud as well as our own test environments.
Investigated product bugs and spoke with development team to improve the quality and usability of our product.
Helped coordinate, set up and establish a new team which focused on Python scripting to gather, collate and process data. Eventually developed a Web UI for this team from scratch with another colleague and achieved success and approval from our management.
Provided in-dept analysis of bugs, error messages and logs from our clients as well as fixes.
Worked very closely with docker in order to diagnose, fix and report bugs with our dockerised Web Apps hosted on our SIEM.
Hosted presentations on new projects I was working on showing off new tools and further boosting knowledge of current colleagues.
Developed bespoke tools for making support team's roles easier and saving lots amount of time.
Work on-call on bank holidays helping support customers worldwide.

PostgreSQLDockerThreat AnalysisSIEM Management