Barnabas L.

Devops engineer

Outsourcing
Senior
Brasov, ROMANIA
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My experience

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Pentalog01.10.2012 - Present

Application Infrastructure Expert / DevOps Engineer - contribution and interventions within Pentalog's application support cell.

DevOps support.
  • Cloud solutions architecture from pre-sales phase to project completion.
  • Infrastructure automation with Terraform.
  • Implementing AWS services (Compute, Storage, Database, Networking and Content Delivery, Developer Tools, Management Tools, Machine Learning, Analytics, Security, Application Integration).
  • Configuration Management with Ansible and Puppet.
  • Technical Team lead for the DevOps Team.
  • Designing and implementing Continuous Integration and Continuous Deployment Systems.
  • Designing architectures for microservices with Docker Swarm and AWS ECS.
  • Technical consultancy for development teams and clients.
  • Devops trainings.

IT infrastructure management and support.
  • Design of the IT system architecture: scalability, failover, application and database clusters.
  • Performance testing of the applications.
  • Implementation of optimization solutions; improvement of the application performance.
  • Integration of several tools for deployment automation.
  • Database and file backup and restore if needed.
  • Application security management: installation of an application firewall, monitoring, upgrade, caching.
  • VMWare virtualization.
  • Integration of Amazon cloud services (EC2, CloudFront, S3, Elastic Transcoder, CDN).
  • Advanced Linux servers administration (scripting, security, backup).
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Krsoft01.10.2006 - Present

Owner of a company providing technical consultancy services.
  • Cloud infrastructure automation in AWS and in private clouds.
  • Linux/Windows configuration management with Ansible.
  • Providing web-hosting solutions (for more than 100 customers).
  • Implementing backup and disaster recovery solutions.
  • Ensuring technical consultancy.
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IPJ Covasna01.01.2007 - 01.10.2012

Network Administrator within the Covasna Romanian Police Headquarters.

Administration of the company's computer system.
  • Management of all network servers and other network components including installation, configuration and maintenance.
  • Development and maintenance of  network security procedures.  
  • Resolution of problems reported by end users for local and wide area networks, personal computers, networking equipment (switches, routers, etc.).
  • Control and measurements of the performance of the network, reports on problems to the appropriate individuals.
  • Maintenance of the documentation of the network and telecommunications.
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Trident Trans Tex01.03.2006 - 01.11.2007

Network Administrator within a retail company.

Administration of the company's computer system.
  • Management of all network servers and other network components including installation, configuration and maintenance.
  • Development and maintenance of  network security procedures.  
  • Resolution of problems reported by end users for local and wide area networks, personal computers, networking equipment (switches, routers, etc.).
  • Control and measurements of the performance of the network, reports on problems to the appropriate individuals.
  • Maintenance of the documentation of the network and telecommunications.
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Eurocenter01.02.2002 - 01.02.2006

ECDL Lecturer and Examiner within an accredited ECDL International Examination Center.
  • Teaching ECDL courses.
  • Carrying out ECDL examinations.
  • Development of management and administration programs.
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“Kalnoky Ludmilla” School, Romania01.09.2001 - 01.02.2002

Teacher of Computer Science and Physics within an educational institution.
  • Teaching computer science and physics classes.

My stack

Spoken languages

FRENCH: Beginner
ENGLISH: Average
HUNGARIAN: Advanced
ROMANIAN: Native speaker

Networks and systems

Ansible, Chef, Docker, Puppet, Terraform, Active Directory, Akamai, Amazon Cloud Services, Amazon CloudFormation, Amazon CloudTrail, Amazon CloudWatch, Amazon Elastic Container Registry (ECR), Amazon Elastic Container Service (ECS), Amazon Elastic File System (EFS), Amazon Elastic Load Balancer (ELB), Amazon Elastic Transcoder, Amazon ElastiCache, Amazon Identity and Access Management (IAM), Amazon Redshift, Amazon Relational Database Service (RDS), Amazon Route 53, Amazon SageMaker, Amazon Simple Email Service (SES), Amazon Simple Notification Service (SNS), Amazon Simple Queue Service (SQS), Amazon Web Services EC2, Amazon Web Services S3, AWS Lambda, Bind, Catalyst 2960 Series, Catalyst 3560 Series, CentOS, Citrix XenApp, Courier, DataDog, Debian, Dovecot, Exchange, Exim, Fedora, FreeBSD, IBM Cloud, IPTables, Linux, Linux Server, LXC, Mailscanner, Mandriva, Microsoft Azure, Mydns, OpenVPN, Plesk, Postfix, Proftpd, PRTG, PureFTPD, Qemu, Samba, Sendmail, Sensu, Slackware, SpamAssasin, Squid, SUSE, Ubuntu, UNIX, Virtual Box, VMWare, VMWare vCloud Director, VMware vSphere, Vsftpd, Windows, Windows Server, Zabbix

Languages

Shell Scripting, Bash scripting, JAVA, Ruby, C#, PHP, JavaScript, SQL

Technologies

ELK Stack, ActiveMQ, .NET, Amazon CloudSearch

Web technologies

AWS, Amazon CloudFront, Node.js

DBMS

MySQL, PostgreSQL, AWS Aurora, Cassandra, MongoDB, DynamoDB, Redis

Development Environment

GIT, SVN, CircleCI, GitLab, Jenkins, Travis CI, Vagrant, Ant, CodeDeploy, CodePipeline, Gradle, Maven

Application servers

TeamCity, ElasticSearch, Apache, Nginx, cPanel, HAProxy, IIS, ISPconfig, JBoss, Lighttpd, Memcached, RabbitMQ, Tomcat, Varnish

Protocols

DHCP, DNS, SMTP, POP3, FTP, HTTP, LDAP, NFS, Proxy, SNMP, TCP/IP

Big Data

Apache Kafka, AWS Kinesis

Open Source solutions

Capistrano, Monit, Munin, Alfresco, Kubernetes, Drupal, Joomla/Mambo, Liferay, Magento, OpenCart, SugarCRM, WordPress

Software testing

JMeter, Tsung, New Relic, AB Apache, HTTPerf, JIRA

Hardware

IBM Blade Center, IBM Disk Storage Systems

Miscellaneous

DevOps, Apache Clustering, MySQL Clustering (Galera; Master-Master, Master-Slave replication), Tomcat Clustering, Keepallived, Graylog, Splunk, Supervisor

Web Analysis and Statistics

Awstats, Webalizer

My education and trainings

Agile Training.2015

"Pentalog Foundations" Training: Adapting the Pentalog Quality Management System (QMS) to a project; Estimation.2013

Master's Degree in E-business - Bucharest University of Economic Studies.2008-2010

Bachelor’s Degree in Physics - "Babes Bolyai" University, Cluj-Napoca. 1997-2001