Julien MAILLERET

Site Reliability Engineer at Talend


Corporate Experience

Since 2017
Site Reliability Engineer at Talend (Nantes, France)

Devops owner for two development teams (Data Stewardship & Data Catalog)

Automate applications stacks build and deployment. Integrate microservices with Talend Cloud platform. Apply infrastructure design patterns to match Talend production criteria (twelve-factor app, microservices, multi-tenant, multi-region, security complianceā€¦). Define cloud-related optimizations to improve reliability and performance. Share devops and cloud best practices with developers. Build Talend Kubernetes platform using Kubespray, Ansible & Terraform

Environment:

Cloud (AWS, Docker, Kubernetes), Infrastructure As Code (Terraform, Ansible, Puppet, Cloudformation), Scripting (Python, Bash), Databases & Middlewares (PostgreSQL, MongoDB, ElasticSearch, Redis, Kafka), CI/CD (Jenkins, Maven), Microservices (Java), Observability (ELK, Prometheus, Zipkin), Scrum methodology

2015-2017
Lead Devops at Weekendesk (Paris, France)

Lead the production team. Manage the infrastructure evolutions. Automate the build and deployment process. Optimize infrastructure, applications and databases performances. Define management process (change/incidents/duty management). Work with development teams & QA team.

Environment:

Cloud (AWS, Docker), Web (Apache, Tomcat, HAproxy), Provisioning (Ansible, Packer, Terraform), Databases & Middlewares (PostgreSQL, MongoDB, ElasticSearch, RabbitMQ), CI (Jenkins, Maven), Java, Python, Scrum methodology

Key Contributions:

2013-2015
Middleware Engineer at AXA Technology Services (Paris, France)

Worked for AXA Banque

Managed Unix servers evolutions (150 Linux, 50 AIX), Tomcat/WebSphere applications installation & day-to-day administration. Improved monitoring, backup and deployment of servers and application. Contributed to production incidents resolution and 24/7 on call support. Lead for technical projects (<40 man days)

Environment:

Unix (AIX, Red Hat Linux), WebSphere Middlewares (WAS, ESB, WMQ), Web (Apache, Tomcat), NoSQL (MongoDB), ITIL & Lean methodologies

Key Contributions:

2008-2013
Unix System Engineer at AXA Technology Services (Paris, France)

Worked for AXA Assistance, AXA Banque & Direct Assurance

In charge of Unix servers (120 Linux, 60 AIX) and SAN systems evolutions. Automated day-to-day administration tasks. Managed troubleshooting and performances tuning, production incidents resolution, installation and day-to-day administration tasks for Unix servers and applications. Contributed to 24/7 on call support. Lead for technical projects (<40 man days)

Environment:

Unix (AIX, Red Hat Linux), SAN IBM, WebSphere WAS, Centreon, TSM, ITIL

Key Contributions:

2007-2008
System Administrator Apprentice at AXA Technology Services (Paris, France)

Worked for AXA Banque

Managed Unix servers (AIX, Solaris & Red Hat). Involved in AXA Banque applications day-to-day administration. Participated to AXA Banque website migration (insourcing hosting infrastructure and CMS version migration)

2004-2007
Network & System Administrator Apprentice at AXA Banque (Paris, France)

Managed Unix servers (AIX, Solaris), Network (Cisco) & Firewall (Checkpoint). Involved in AXA Banque applications day-to-day administration. Participated to AXA Banque Extranets & Firewall consolidations project

Education

2007-2008
M2IRT Master 2 Information System Management at ITIN-ESCIA (Cergy, France)
2005-2007
M2IRT Master 1 Systems & Applications Administration at ITIN-ESCIA (Cergy, France)
2003-2005
BTS IT Management Network Administration at ISIMI (Paris, France)

Skills

Cloud Computing & Containers: AWS***, Docker***, ECS**, Kubernetes**

Infrastructure As Code: Ansible***, Terraform***, Packer**, CloudFormation**, Puppet*

UNIX Administration: Linux***, AIX**

CI/CD & Testing: Jenkins***, Maven*, Git**, Gatling**

Observability: ELK*, Prometheus*, Zipkin*, Zabbix**, Centreon**

Scripting: Bash***, Python**

Web & App Servers: Apache***, Tomcat***, Nginx***, HAproxy***

Databases & Middlewares: PostgreSQL**, MongoDB***, MySQL*, ElasticSearch*, Redis*, Kafka*

Architecture: Load Balancing***, CDN*, SSL**, DNS***, AutoScaling Groups**

English: Oxford Test B2 Intermediate (2016)


email: job@mailleret.fr | website: https://julien.mailleret.fr

github: https://github.com/jmlrt | linkedin: https://www.linkedin.com/in/julienmailleret