Atha Kouroussis, Developer in Pilar, Buenos Aires Province, Argentina
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Atha Kouroussis

Verified Expert  in Engineering

Unix Shell Scripting Developer

Location
Pilar, Buenos Aires Province, Argentina
Toptal Member Since
February 13, 2019

Atha is a senior DevOps engineer and IT architect with 20+ years of experience in a wide range of IT initiatives. As a former CTO of an IaaS and managed services company, automation, thinking at scale, and customer focus have become his main drivers. His eagerness to learn and explore new technologies and extensive IT experience make him uniquely suited to leverage technology to produce flexible solutions that adapt to business needs.

Portfolio

Belatrix Software
Amazon Web Services (AWS), Consul, Nomad, Kubernetes, Terraform, Ansible, Linux...
Vurbia Technologies
Amazon Web Services (AWS), Consul, Nomad, Terraform, Ansible, Windows, Linux...
Uniqs
Dell EMC, Oracle, Solaris, Linux, Automation, CI/CD Pipelines...

Experience

Availability

Part-time

Preferred Environment

Terraform, Ansible, Git, Vim Text Editor, Zsh, Linux

The most amazing...

...project I've led is the migration of an entire on-premises datacenter to a multi-cloud architecture.

Work Experience

Director of Cloud Sevices and DevOps

2018 - 2019
Belatrix Software
  • Created and bootstrapped the company's cloud services unit.
  • Designed, managed, and supported the cloud Infrastructure of multiple customers at multiple cloud providers.
  • Designed and executed multiple inter-cloud infrastructure migrations.
  • Oversaw recruiting and training, resource allocation, and employee assessment.
  • Designed and executed the company's cloud partnership strategy.
Technologies: Amazon Web Services (AWS), Consul, Nomad, Kubernetes, Terraform, Ansible, Linux, IBM Cloud, Google Cloud Platform (GCP), Automation, Azure, CI/CD Pipelines, Continuous Integration (CI), GitHub, GitLab CI/CD, Quality Assurance (QA), Testing, Architecture, Cloud Architecture

CEO | CTO | Co-founder

2009 - 2018
Vurbia Technologies
  • Designed, managed, and supported the company's VMware-based IaaS.
  • Designed and executed the company's shift to become a managed services provider.
  • Architected and implemented many tailor-made infrastructure solutions for company customers.
  • Designed and developed numerous internal Ansible roles and Terraform modules.
  • Built and mentored a cohesive, diversely qualified IT team.
Technologies: Amazon Web Services (AWS), Consul, Nomad, Terraform, Ansible, Windows, Linux, Google Cloud Platform (GCP), VMware, IBM Cloud, Automation, Azure, CI/CD Pipelines, Continuous Integration (CI), GitHub, GitLab CI/CD, Quality Assurance (QA), Testing, Architecture, Cloud Architecture

Senior IT Architect and Consultant

2007 - 2009
Uniqs
  • Provided consulting services to a wide variety of companies in Latin America.
  • Designed and implemented several high-availability and disaster recovery solutions for various systems and platforms.
  • Performed numerous capacity planning and performance assessments.
  • Designed and implemented multiple early-stage automation and configuration management solutions.
  • Developed custom tools for analysis of capacity planning and performance assessment data.
Technologies: Dell EMC, Oracle, Solaris, Linux, Automation, CI/CD Pipelines, Continuous Integration (CI), Quality Assurance (QA), Testing, Architecture

Operations and IT Manager

2002 - 2006
Naviera Petrosan
  • Recruited to organize and manage the company's operations department.
  • Established and managed an enterprise-wide IT program.
  • Oversaw company-wide efforts to identify and evaluate all critical systems.
  • Designed and implemented security processes and procedures.
  • Designed and oversaw the development of a web-based application for the company's operational needs.
Technologies: Windows, MySQL, Java, Linux

Senior IT Architect

2000 - 2001
spyn Inc.
  • Recruited to provide consulting services to a wide variety of companies worldwide.
  • Supervised integration of heterogeneous platforms.
  • Provided final approval for fully functional mission-critical solutions.
  • Managed the creation of high-profile high availability transaction processing (HATP) solutions, supervising development teams working in multiple locations.
  • Designed and supervised the implementation of several high-availability and disaster recovery solutions for various systems and platforms.
Technologies: Hitachi HPLC, Oracle, Solaris, Automation

Senior Unix Engineer | Systems Architect

1999 - 2000
Unifon (Telefonica)
  • Provided internal support to the Unix development team for the company's mission-critical application.
  • Co-managed and designed the company's Unix infrastructure.
  • Capacity-planned and supervised the migration of Miniphones Unix infrastructure to Unifon.
  • Designed and supervised the implementation of the company's new data center for the above migration.
  • Implemented several high-availability solutions involving Sun Enterprise 10000 Servers and EMC Symmetrix disk arrays.
Technologies: Hitachi HPLC, Dell EMC, Digital, Oracle, AIX, Tru64, Solaris, System Administration, Automation

Implementation of a Mission Critical High Availability Solution

Implemented a multi-node Veritas cluster managing the billing system of a mobile phone carrier. Given that each hour of downtime represented over $1 million in lost revenue, the project's top priority was to minimize downtime to the bare minimum with a maximum tolerance of three hours for the full implementation. The final tally of 42 minutes of downtime was well below even the most optimistic expectations.

Languages

Bash, Java, Python, Ruby, SQL

Tools

Terraform, Ansible, Google Kubernetes Engine (GKE), Helm, Git, Ansible Tower, Vault, Jenkins, VMware vSphere, Vagrant, Vim Text Editor, Apache, NGINX, Postfix, OpenVPN, GitHub, Zsh, VMware, Dell EMC, Hitachi HPLC, Traefik, VirtualBox, Nagios, Grafana, RabbitMQ, Zabbix, GitLab CI/CD

Paradigms

DevOps, Continuous Integration (CI), Continuous Deployment, Continuous Delivery (CD), Automation, Testing, Agile Software Development

Platforms

Kubernetes, Linux, Google Cloud Platform (GCP), Amazon Web Services (AWS), Docker, DigitalOcean, Windows, Oracle, Tru64, AIX, Azure, Solaris, Percona

Other

Architecture, Content Delivery Networks (CDN), Cloud, Cloud Architecture, IBM Cloud, Unix Shell Scripting, DNS, System Administration, CI/CD Pipelines, Containerization, Orchestration, Nomad, Consul, HAProxy, Unix/Linux Virtualization, NFS, Quality Assurance (QA), Digital, Systems Engineering, Prometheus, Cloudflare

Storage

MySQL, MariaDB, Datadog, Google Cloud Storage, PostgreSQL, Memcached, Redis, Cassandra, MongoDB, Elasticsearch, Amazon S3 (AWS S3)

1994 - 1996

Progress Towards a Bachelor's Degree in Systems Engineering

Instituto Tecnologico de Buenos Aires - Buenos Aires, Argentina

APRIL 2008 - PRESENT

Sun Certified Systems Adminstrator for Solaris 10

Sun Microsystems

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