Alexandru S.

Devops engineer

Outsourcing
Advanced
Brasov, ROMANIA
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My experience

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Pentalog01.03.2018 - Present

DevOps Engineer working as part of a team of certified Solution Architects and Engineers in the Pentalog Customer DevOps service. Agile and Lean principles is the foundation of our DevOps methodology, which promotes the collaboration between business owners and development, operations, and quality assurance specialists. Altogether as a team, we ensure alignment on the goals and we focus on continuous improvement to achieve them.
  • Installing, configuring, maintaining Linux / Windows servers and application servers.
  • Implementation of security requirements.
  • Managing (creating, maintaining, automatize) the building and the deployment process for multiple projects and releases.
  • Verifying the delivery packages / content (source code, database scripts, installation instructions etc).
  • Managing the project development, testing, production environments.
  • Managing (creating, maintaining, automatize) continuous integration environments.
  • Assisting the development team on the deployment / configuration / delivery aspects.
  • Building high availability and scalable systems.
  • Installing, configuring, maintaining cluster platforms, Load Balancing, Back-up, fail-over solutions.
  • Creating and maintaining the documentation concerning the environment description, installation and deployment instructions.
  • Firewall configuration.

DevOps Expert - contribution and interventions within Pentalog's application support cell.

  • Designing the IT system architecture: scalability, failover, application and database clusters.
  • Implementation of optimization solutions.
  • Improvement of the application performance.
  • Integrating several tools for deployment automation.
  • Database and file backup and restoring if needed.
  • Application security management: installation of an application firewall, monitoring, upgrading, caching.
  • VMWare virtualization.
  • Integration of Amazon Cloud Services (EC2, CloudFront, S3, Elestic Transcoder, CDN).
  • Advanced Linux servers administration (scripting, security, backup).
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Bittnet Systems01.11.2016 - 01.03.2018

System Engineer for the national IT training market leader with extensive experience in delivering high-quality IT training, services and solutions.
  • Working with multiple AWS services, designing highly available architectures and providing technical support to our clients to reduce the downtime of their applications.
  • Development of an automation repository, which was particularly and individually tailored per client, in order to focus more on AWS services and designing a better architecture, involving less manually installed various applications.
  • Attendance of multiple technical trainings on AWS (Technical Essentials, Certified Solutions Architect, System Operations).
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INTEL Software01.04.2015 - 01.04.2016

Software Engineering Intern within an American multinational semiconductor chip maker corporation.
  • Implementation and improvement of several Bash and Python automation scripts used to run performance and power measurements on different hardware platforms and to collect power and performance measurements.
  • Implementation of a C# application, based on an existing .dll file, which sends multiple commands to another application and modifies certain parameters.
  • Rectification of hardware components on different platforms in order to measure the power consumption.
  • Benchmarking and characterization, followed by the analysis and comparison of sheets.
  • Attending numerous technical and non-technical courses.
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TECO CONTROL01.06.2014 - 01.10.2015

Trainee within an automation equipment and PIF technical support provider.
Participation in a project focused on the implementation of a digital milivoltmeter using a Microchip PIC microcontroller.
The programming included the use of the assembly language in MPLAB IDE, based on a PICKit programmer. The display included multiplexing a 7-segments LED with 4 digits.
  • Working with the above-mentioned microcontroller architecture.
  • Configuring specific registers.
  • Working with three types of available memories, including RAM, Flash, EEPROM.
  • Implementation of specific methods in order to handle different microcontroller functions.

My stack

Spoken languages

GERMAN: Average
ENGLISH: Advanced
ROMANIAN: Native speaker

Networks and systems

Amazon Cloud Services, Amazon Web Services EC2, Amazon Identity and Access Management (IAM), Amazon Elastic Load Balancer (ELB), Amazon CloudFormation, Amazon CloudTrail, Amazon CloudWatch, Amazon Elastic Container Registry (ECR), Amazon Elastic Container Service (ECS), Amazon Elastic File System (EFS), Amazon ElastiCache, Amazon Redshift, Amazon Relational Database Service (RDS), Amazon Route 53, Amazon Simple Email Service (SES), Amazon Simple Notification Service (SNS), Amazon Web Services S3, Monit, Samba, Ubuntu, UNIX, VMWare, Vsftpd, Windows

Languages

Bash scripting, Python, C#, C/C++, Assembly

Technologies

ELK Stack

Web technologies

Amazon CloudFront, AWS, AWS Lambda

DBMS

MySQL, MongoDB, CouchDB, DynamoDB, Redis

Development Environment

CodeDeploy, CodePipeline, Ant, GIT, Gradle, Jenkins, Maven, SVN, Vagrant

Application servers

JBoss, Apache, cPanel, ElasticSearch, Memcached, Nginx, RabbitMQ, Tomcat, Varnish

Protocols

DHCP, DNS, FTP, NFS, SMTP

Software testing

JIRA, JMeter, New Relic, Tsung

Miscellaneous

DevOps, Graylog, Grafana

My education and trainings

Bachelor's Degree in Networking and Telecommunication Software, Faculty of Electronics, Telecommunications and Information Technology - "Politehnica" University, Bucharest.2012-2016