Guénolé Decroux Email & Phone Number

Boca Raton, Fl, Us

Boca Raton, Florida, United States

Tel Aviv-Yafo, Tel Aviv District, Israel

Achievements:Migrated the e-com website www.azrieli.com infrastructure to a full micro-services architecture on AWS EKS.Kubernetes expert in charge K8S clusters generation, sizing, exploitation, monitoring and maintenance.Generated and maintained the infrastructure with IaC (terraform)Setup the whole monitoring and alerting (Prometheus, New Relic, AWS Cloudwatch)Setup the CICD (Github action, actions runners, ArgoCD) resulting in 40% less costs than hosted GitHub runners.Setup the WAF mitigation strategy + all the automated alerts and WAF metrics reportingMigration of the whole stack from an AWS Region to another one, failover and DRP plans.Continuous AWS cost control by monitoring the allocated Cloud resources vs. actual used Cloud resources.Lunch and Learn presentations, documentations and training.Impacts on the company:Transitioned from a on-premise to a micro-services architecture, providing scalability, flexibility, decentralization and fault tolerance to the application stack. Led the engineering team in developing some CI/CD pipelines that streamlined automation processes, resulting in a 20% reduction in new feature delivery lead time and 40% less costs.Accurately allocated the perfect amount of resources and setup a comprehensive monitoring/alerting stack that allowed to accurately allocate resources, resulting to a cost efficient “four nines” uptime.Defined the Kubernetes configuration strategy, enabling best security practices in the K8S ecosystem.Developed a cost-efficient Kubernetes auto-scaling strategy by conducting in-depth analysis of monitoring data, ensuring seamless and automatic handling of organic traffic fluctuations. Proactively mitigated online threats through a WAF solution, resulting in a up to 50% traffic reduction by diverting scrapers bots and bad traffic, hence preserving website integrity and cost control.

Montreal, Canada Area

Achievements:Migrated the “World Series Of Poker” game to a micro-services architecture, orchestrated on Kubernetes.Lead Kubernetes training sessions for the engineering department.Helm charts developmentLarge scale (100 nodes+) production Kubernetes clusters upgrades: procedure, documentation and implementation.Worked with Kafka / event driven architecture into a micro-services environment.Datastores management Aerospike (noSQL), redis, MySQL running inside Kubernetes clusters.Monitoring and alerting management in a k8s environnement: Prometheus and GrafanaLogging management in a Kubernetes environment (ELK)Implementation of an AirFlow cluster running on Kubernetes (K8s, helm, BI)Ansible playbooks modifications and applications to the production.Training of new DevOps in the team, did the recruitments and tech tests, acted as a team lead.Impacts on the company:Contributing to the company’s objective to standardize its games portfolio by migrating a big title to the corporate platform.Enabled the engineers to move forward with Kubernetes by doing solid training sessions.Introduced AirFlow that allowed the company to build a BI team and transform raw data into actionable insights.Trained new DevOps engineer which ensured the continuity of the team and fulfilled the company employee training program objectives.Created the infrastructure for 2 new games which allowed the company to pursue its innovation objectives by publishing 2 new titles.

Montreal, Quebec, Canada

Achievements:Creation of a Kubernetes cluster on AWS from scratch (kops, Datadog ELK, autoscaled). This cluster handles 25M monthly users and peaks at 50k+ simultaneous users. This cluster hosts ssense.com who’s generating 5-600M$ of annual revenues.Setup and documentation of Jenkins BlueOcean with 300 daily deployments (from webhook to helm).Standardization of Helm charts for Kubernetes.Infrastructure as code : ‘terraformization’ of AWS SaaS.Creation of CICD pipelines (GoCD).Automated QA environment creations (terraform, Kubernetes).WebSecurity, WAF selection, setup and bots mitigation strategy (Imperva Incapsula).Very good knowledge of AWS cloud provider.Has been the official DevOps of up to 5 teams in 2 different pillars at the same time (stress and priority management). BackEnd micro-services architecture design (part of the team) (30 developers).Setup DataDog monitoring and alerting and co-lead a AWS cost reduction initiative.24/7 OnCall rotation.Has build recruitments technical tests and conducted technical interviews.Impacts on the company:Successfully contributed to the DevOps team responsible of SSENSE’s next generation infrastructure based on AWS, Netflix OSS, Kubernetes and Docker.Enabled the company to move to the next-generation CICD, enabling accelerated Time-to-Market and releases enhanced quality and reliability and operational efficiency.Established and documented some infrastructure standards and best practices to make the company reach the infrastructure best practices compliance adherence.Mitigated online threats through a WAF solution, resulting in a up to 65% traffic reduction by diverting scrapers bots and bad traffic, hence preserving website integrity and cost control.Successfully identified underused Cloud Resources and consolidated the infrastructure costs by 40%

Montreal, Quebec, Canada

- Kubernetes on AWS (cluster administration / maintenance / evolution)- WebSecurity (Imperva Incapsula)- Terraform- Fastly

Montreal, Canada Area

Supporting production, contributing to a continuous enhancement of the infrastructure to make it more scalable and reliableProvide SysAdmin expertise to developers and QA departmentsImplementation of deployment tools (jenkins CI/CD)Implementation of infrastructure for new projectsBuild of environnements automationOn Call rotation- Agile / scrums- Chef orchestrator- Jenkins / scripting- Continuous Integration / Continuous Delivery- Vagrant- Git- Amazon AWS : EC2, RDS, ElastiCache, ElastiSearch, S3 etc.- RackSpace- Confluence / Jira- CentOs- Apache / Nginx- MySQL migration / replication- Tomcat- OpenVPN- Observium- Zabbix / Nagios- Slack- Haproxy- Varnish

Montreal, Canada Area

Administration and maintenance of 500+ linux web servers, LAMP stack (15 millions+ monthly visitors).Installation and maintenance of OnPrem versions of Jira and Confluence.incidents management and ops level 2 and 3 with prioritization queue management (Jira).Internal documentation maintenance (Confluence).Management of deployment processes (Continuous Integration with bash scripts on Jenkins).Worked with : Linux CentOS, MySQL, php. JBoss, VMWare, Citrix NetScaler, NetApp, SVN. New environnements deployment (chef) - OnCall rotation level 2. Analysis of issues, corrective mesures, communication.IT Contact for projects teams. In charge of providing expertise and labor time evaluation.

Paris Area, France

Achievements:Design and implementation of a server room (plans, structures, access control, connection, cooling), creation of a LAN with an optical fiber backbone for 250 clients and 40 serveurs. Virtualization (VMWare, SAN, Fiber Channel) of 20 physical servers.Implementation of a monitoring tool and network insights with automatic feedback alerts (Cacti, Linux).Management of external service providers, management of budget, contracts awarding by tender.Administration of security appliances (Firewall, AntiSpams, Proxies). - WAN network administration : France, USA, Chine, Allemagne, Italie, Syrie, Soudan, Gabon, Emirats, Canada, UK (distant servers management and international support).Design of a new WAN connection 10+ distant overseas sites (Checkpoint, VPN, LAN MPLS, Cisco).Server rooms consolidation project with 0% downtime.- Firewalls & antispams migration- Supervision tool deployment- Creation "from scratch" of a new server room (40 servers)- Windows AD domains migration- Network & systems administration

2 years of network & systems administration for a IT services company of 30 employees.

Engineer, It Networks & Systems

Private Pilote Licence, Aeronautics/Aviation/Aerospace Science And Technology, General

Technical

French Scientific Baccalaureate "Bac S"