TLFreelancer profile translated to English.
Back to original languageAbout Tong
Passionate about DevOps and Cloud, I help companies design, deploy, and maintain reliable and secure infrastructures.
My experience covers GitOps with Argo CD and Kustomize, as well as Infrastructure as Code with Terraform and Nickel. I have worked on Kubernetes environments (AKS, Kind, multi-tenant) and Azure Cloud solutions (Application Gateway, PostgreSQL Flexible Server, Image Gallery).
I have also contributed to the design of Cloud delivery solutions, implementing standardized image and application distribution methods to ensure speed, security, and reproducibility.
Certified CKA & CKS, I focus on securing, stabilizing, and optimizing production environments, while automating deployments with CI/CD and managing secrets (SOPS/KSOPS, Azure Key Vault).
🔹 Goal: build scalable, secure, and easy-to-maintain platforms.
🔹 Key Skills: Kubernetes, GitOps, CI/CD, Terraform, Azure, Security, Monitoring, Cloud Delivery.
French
Native or bilingual
English
Fluent
Can work on-site
Toulouse (up to 50km)
Experience
- SeqinoDevOps Engineer FreelanceMay 2025 - Today (1 year and 1 month)GitOps & CI/CDImplemented a GitOps workflow with Argo CD to automate multi-environment deployments.Infrastructure as CodeDeveloped reusable infrastructure blueprints in Nickel, integrated with Terraform for Kubernetes and cloud.KustomizationDesigned and managed modular Kubernetes manifests with Kustomize, facilitating multi-environment customization and GitOps integration.Security & SecretsAutomated secrets management with SOPS/KSOPS, integrated into CI/CD pipelines.Kubernetes & ApplicationsDeployed and managed applications via Helm (Redis, PostgreSQL, Tyk, etc.) in a multi-tenant GitOps structure.Identity & AccessIntegrated SSO authentication with Argo CD for secure, role-based developer access.
- FreelanceITDevOps EngineerApril 2025 - August 2025 (4 months)AKS (Azure Kubernetes Service) Design & DeploymentSet up AKS clusters with overlay network (Calico), managed subnets, and integrated Azure Application Gateway.Configured secure access via App Registrations (Azure AD SSO) and managed identities.Cloud-Native Infrastructure on AzureDeployed PostgreSQL Flexible Server with PgBouncer for connection optimization.Set up an NFS server on Azure VM to provide persistent volumes for AKS workloads.Defined network security policies (NSG, firewalls, private endpoints) for secure hybrid access.Azure Compute Gallery – Delivery MethodExported VM snapshots as managed images, published them to the Compute Gallery, and securely shared them across tenants.Reduced delivery complexity by enabling direct image replication within Azure, without relying on insecure public shares.
- StrateginDevOps EngineerSOFTWARE PUBLISHINGJanuary 2024 - April 2025 (1 year and 3 months)Toulouse, FranceSetup, Maintenance, and Improvement of a DevOps Platform🔹 Automation & Deployment
- Designed and optimized CI/CD pipelines with GitLab CI and GitHub Actions
- Reduced pipeline execution time from 20 min to under 10 min
🔹 Infrastructure & Cloud- Set up and maintained Kubernetes clusters in the cloud
- Managed and optimized Debian/Ubuntu VMs, reducing cloud costs by 30%
🔹 Security & Monitoring→ Improved code quality score (SonarQube) from 75% to 90%→ Reduced critical vulnerabilities detected in Docker images by 80%- Deployed advanced monitoring with Prometheus, Grafana, and Alertmanager
- Implemented a rollback strategy to minimize downtime
🔹 Support & On-Call- Assisted clients with deployments on Azure, OVH
- Organized an on-call rotation with incident response protocols
💻 Technical Stack: Kubernetes | Docker | GitLab CI | Ansible | Bash | Prometheus | Grafana | Linux | MongoDB | GitHub Actions
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Education
- MasterMaster
Certifications
- Certified Kubernetes Security Specialist CKSLinux Foundation2024
- Certified Kubernetes Administrator CKALinux Foundation2023