Guillermo Umaña

guillermo

DevOps Engineer | Heredia, Costa Rica

IT professional with experience in Middleware systems analysis/ DevOps practices in support, development, testing and automation of various tasks and projects both on-premise and with cloud technologies. Proven and certified experience in Agile Project Management and IT governance / management methodologies and processes.

Experience with github / Helix core, Ansible, serverspec, Maven, SonarQube and Jenkins, to support configuration management, continuous delivery and continuous integration pipelines across VMs and containers. Experience with orchestrators like Kubernetes and Docker swarm for delivery on both premise and Amazon AWS infrastructure for projects.

Knowledge of languages like Ruby on Rails, HTML, Javascript, groovy, CSS, and Java EE and automation management languages like python, Ansible and bash for supporting application / Web servers like: Weblogic, Websphere, IIS, Tomcat, Jboss, Apache and Nginx. 

Experience

Intertec
Senior DevOps

National Instruments
Senior Web Systems Engineer / DevOps

Bank of America
Tier II - Middleware Administrator & Support

Location

Employment

Senior DevOps
Intertec (2016 - Present)
Experience implementing continuous integration (CI) allowing unit testing, build and deployment of the code from git and continuous delivery (CD) moving the code from stage to production using Jenkins pipelines

• Automation to sync files and deploys between data centers (on premise and AWS) using Ansible, implemented several Akamai API services to avoid manual steps during the deploys, support,
configuration and maintenance of all the instances running for the customer, experience scripting using Ansible, Python to automate tasks on the customer stack to avoid most of the manual tasks

• Experience with Amazon Web Services experience including S3, EBS, ELB, RDS, git, Maven and Jenkins

• Experience deploying and managing Java web applications using Docker containers including services on-premise and AWS

• Troubleshooting of problems across different platforms including deployment, installation, performance, content delivery issues across the entire technology stack including WebLogic,
Tomcat, NGINX, Apache, F5 load balancer, Akamai, Ansible, Jenkins

• Worked as part of the team to improve the processes followed by the line of business including SLA with vendors and internal support teams to better adjust to business requirements when necessary

Senior Web Systems Eng / DevOps
National Instruments (2014-2016)

• Experience implementing continuous integration (CI) allowing unit testing, build and deploy of the code to non-production environments also implemented continuous delivery (CD) to move the code from lower tiers (test or test2) to production using Jenkins pipelines

• Primarily responsible for the availability and performance of ni.com, accountable for the installation, configuration, monitoring, testing and implementation of all internal and external systems, maintenance of monitoring tools and the failover web page on AWS

• Accountable for the automation of builds using Ansible, supporting applications and application developers, providing support for Web systems worldwide for 24x7 availability to customers

• Troubleshooting of problems across different technology stacks - such as networking, databases, web/application servers, operating systems and applications to identify and correct operational problems including: Linux, NetScaler Load balancer, Windows, Apache, Oracle Weblogic Server, Opentext Vignette, WebSphere Application Server (WAS), Varnish

• Proposing and implementing enhancements to improve web system performance and availability, adapting business requirements into system requirements and working as part of
project teams to devise solutions to business goals, training domestic and international staff on system configuration, management, maintenance and troubleshooting

• Create, administer and improve Akamai CDN configurations used by ni.com

Tier II - Middleware Administrator & Support
Bank of America (2011 - 2014)

• Manage of Middleware Infrastructure projects for different line of business on different products such as Apache, Weblogic, Websphere, JBoss with different operating systems such as Red Hat, Solaris and UNIX based systems.

• Responsible and accountable for the change process and incident management process for our applications production and lower environments.

• Troubleshooting for Linux, Mainframe & Windows systems (Web servers as Apache, Tomcat, WebLogic and IIS, Active directory and Windows server 2003, 2003 R2, 2008, 2008 R2, Red-hat and AIX serves).

• Responsible for performing duties of administering user ID access to information residing on company computer systems, Tier 2 Access Analyst Applications Support.

Bank of America
Tier I System Operations Mainframe & Midrange (2008 - 2011)

• Provision and de-provisioning access for associates around the globe, using Midrange & Mainframe Applications and platforms such as Active directory, AS400 based systems and web services to create users, modify data shares, created data shares, create domains, configuration of rules, and LDAP Management

• Administering computer systems like Windows, Mainframe, and Midrange (Servers: Windows server 2000, 2003, 2008, VAX, AS400, Base 24, AIX, SUN, LINUX, TANDEM, and HP)

Education

ULACIT
Bachelor’s degree in Computers Engineering Completed (2013)

Postgraduate degree – Software development (2013-2015) 

Postgraduate degree – Management of technological resources (2013 - 2014)

CERTIFICATIONS

Bank of America
Computer Science (January - December 2013)
Six Sigma Green Belt – Lean Project

Bank of America
Six Sigma Yellow Belt (June 2012)

Bank of America
ITIL V3 Foundational – ITIL/US455752 (September 2012)
Studied several areas of knowledge in both languages, Spanish and English, such as mathematics, physics, chemistry, economics, history, literature and philosophy, being part of the International Baccalaureate (IB) Diploma of the IB Organization.

Bank of America
COBIT 4.1 preparation course (August 2013)

Technical Skills

Languages
CSS, PHP, Java, COBOL

Software Operating Systems
Linux, windows server

Framwork

COBIT