Iskander T.

Embedded in the Infra Squad on the card payment processing platform. High-availability environment, PCI-DSS compliance, GCP/AWS/Scaleway stack. FinOps & Cost Optimization: • Logging FinOps: full review of logging sinks, duplicate removal, custom logging scopes. Estimated savings: +€90K/year. • BigQuery migration: On-Demand to BQ Editions. Identified savings: +$120–230K/year. Slot analysis, S2 retro-simulation, stakeholder presentation. Architecture & Security: • Designed and documented Cloudflare bypass plan: DNS failover and WAF. • On-prem to GCP cloud migration: ELK, Redis, CloudSQL. • PSA vs PSC analysis for Cloud SQL, GKE memory sizing. Governance & Tooling: • Infrastructure governance: naming conventions, mandatory logging, labels, centralized model migration. • Terraform tooling: templates, modules, centralized 3000+ lines of TF. Standardized CI/CD pipelines (GitLab, Atlantis). • Hybrid GCP-Scaleway networking. Stack: GCP, AWS, Scaleway, Terraform, Ansible, Cloudflare, Gandi, StrongSwan, ELK, GitLab, Atlantis

Migration to a Serverless Architecture: Transitioned from Kubernetes to CloudRun, Cloud Workflows, Cloud Scheduler, Pub / Sub. DevOps: Contributed to building platforms and Python/Terraform pipelines on GITLAB-CI. Infrastructure as Code: Utilized Terraform. Data: Created pipelines for data transformation, extraction, and loading using BigQuery, Argo Workflows, and events. FinOps: Empowered teams with cloud usage responsibilities, adopting optimization methods for budget, quotas, and consumption alerts. Cloud Architecture: Designed and implemented robust cloud solutions on GCP, offering guidance and diagrams. Analyzed existing application and infrastructure architecture, identifying areas for performance optimization. Security: Participated in risk assessment exercises to identify areas requiring additional controls for better protection against cyberattacks. Enhanced the robustness of the cloud environment, minimizing risks and fortifying overall security. FinOps: Collaborated with analysts and engineers to devise the FinOps strategy, optimizing infrastructure costs for efficiency and financial returns. Utilized custom-made dashboards for finely monitoring costs. Implemented budgets to control the usage of cloud infrastructure through proactive alerts. Defined technical delivery strategy and developed integration tools.

24/7 on-call duty for their worldwide payment transaction computing platform. Helping enhance workflows' performance on Google Cloud Platform (GCP) through testing and benchmarking. Designing and implementing security measures over public endpoints using GCP Cloud Armor firewall rules and Cloudflare.

Building high-availability, auto-scalable infrastructure on GCP. Migration and adaptation over 400 applications to Cloud. Collaboration with the architect on migrating to a cloud-native client SSO solution. Creating cloud environments for testing, development, QA, and production Establishing DevOps and CI/CD software factory to enhance developer delivery rate. Implementing robust security measures. Facilitating onboarding for non-technical personnel to the new platform 24/7 on-call duty for the large-scale website, handling more than 10,000 requests per second at peak times.