Valdir A.
DevOps Engineer

Skills

Kubernetes

Pl/sql

Github

Zabbix

Python

Mysql

Microsoft Azure

Amazon Aws

Docker Cloud

Valdir is available for hire

Meet Valdir A.

All Howdy Candidates are vetted for skills and english proficiency.

Bio

A professional in Site Reliability Engineering (SRE) and DevOps, with extensive expertise in Public Cloud environments including AWS and Azure. With a degree in Computer Science from UNESP in Presidente Prudente, their experience covers a comprehensive array of DevOps technologies. This includes the implementation and management of Continuous Integration/Continuous Deployment (CI/CD) pipelines using tools such as Jenkins, goCD, and Azure DevOps. Additionally, they have substantial experience with containerization and orchestration tools like Docker and Kubernetes, as well as version control through Git. Their skills extend to configuration management with Ansible, infrastructure as code using Terraform, and proficiency in scripting languages including Python and Shell. They are well-versed in database management systems, specifically MySQL and Postgres, and possess a solid foundation in Linux/Unix administration and network management for both on-premise and cloud-based environments.

System Engineer
10/1/2021 - 6/1/2022

Developed expertise in AWS Public Cloud, with extensive hands-on experience using S3, Cloudfront, security groups (SG), EC2, VPC, EKS, ECS, Fargate, RDS, DynamoDB, IAM, and Route 53. Utilized VPN and implemented best practices to enhance cloud security and efficiency. Gained proficient skills in Kubernetes and Docker for container orchestration and management. Conducted web service management using Apache2 and Nginx, and maintained MySQL and PostgreSQL databases with a strong foundation in Linux systems.

Leveraged configuration management tools such as Ansible, Puppet, and Chef to automate and streamline deployment processes. Developed scripting proficiency in Shell Script and Python to facilitate various system administration tasks. Utilized Zabbix and Grafana for monitoring and performance analysis, incorporating Prometheus for comprehensive metrics collection.

Implemented infrastructure as code practices using Terraform and CloudFormation to ensure consistent and scalable cloud infrastructure deployment. Led CI/CD pipeline creation and maintenance with Jenkins, ensuring seamless and automated build, test, and deployment processes. Applied version control best practices within Git/Gitflow environments to maintain collaborative and efficient codebase management.

Enhanced communication and documentation practices through Slack and Teams, and maintained comprehensive project documentation in Confluence. Managed Agile and Kanban workflows using Jira to effectively track project progress and ensure timely delivery.
DevOps Analyst
1/1/2021 - 9/1/2021

Developed extensive proficiency in a wide range of AWS services including S3, Route 53 for DNS management, EC2 for virtual computing, RDS for database management, Security Groups (SG) for configuring firewall rules, SQS for message queuing, Multi-Factor Authentication (MFA) for enhanced security, WAF for application layer security, and IAM for identity access management. Gained a basic understanding of Azure services, enhancing knowledge of cloud infrastructure. Acquired hands-on experience with Mikrotik Router 750g3 for network routing solutions and administered firewalls using Pfsense with a focus on stateful inspection. Enhanced capabilities in automation through the use of MindSet, driving efficiency and reducing manual intervention in system processes.
IT Infrastructure Analyst
7/2/2018 - 12/1/2020

Developed advanced management and performance optimization skills for IT infrastructure, including overseeing hardware maintenance for laptops, notebooks, desktops, and servers. Gained expertise in the configuration and performance enhancement of Unix-based servers, such as FreeBSD, FreeNAS, and PFsense (FIREWALL), and Linux distributions including CentOS, Ubuntu, and Debian. Ensured robust backup systems using Bacula and proficiently managed Windows Server 2012 and 2016. Demonstrated in-depth knowledge of implementing and managing Linux services such as Apache/NGINX web servers, LAMP environments, RAID, LVM, networking configurations, Sys-V, Systemctl, DHCP, DNS, SQUID, Samba, NFS, FTP/SFTP, SSH, security protocols, and OpenVPN. Successfully implemented and configured Owncloud storage with HTTPS Lets Encrypt (SSL). Developed scripting proficiency in Shell Script (bash) and Batch Script (DOS). Utilized Wordpress as a documentation tool.

Excelled in network and system monitoring using Zabbix and Grafana and configured advanced Unifi Ubiquiti servers for institutional Wifi networks. Managed installations and configurations in virtualization environments using hypervisors like KVM/QEMU and Hyper-V. Administered ERP software installation and configuration, specifically Totvs RM, and demonstrated solid understanding and installation capabilities for network switches and NAS storage solutions (Asustor) in a business context. Proficiently configured and maintained relational databases MySQL and Postgres, ensuring alignment with institutional needs. Investigated and implemented cloud solutions and applied critical security updates for vulnerability management.

Advanced knowledge of proprietary and open-source server hardware including HP and Dell, along with expertise in RAID configurations to achieve redundancy and immediate data availability for data centers. Developed strong DevOps culture and championed cloud computing and open-source technologies. Displayed advanced coding skills in C programming and executed sophisticated routing with Mikrotik hardware (RB750 and RB1100).
Multimedia Programmer
6/2/2018 - 7/2/2018

Gained extensive experience in game development utilizing Unity, Stencyl, and Scratch, enhancing proficiency in interactive and animated game design. Developed comprehensive skills in graphic and 3D modeling through the use of Gimp and Blender, contributing to visually enriched gaming experiences. Executed various robotics projects using Arduino and Raspberry Pi, showcasing versatile technical capabilities in hardware programming and electronics. Engaged in 3D printing projects, producing diverse objects and engaging in playful activities with 3D printers, highlighting practical applications of 3D technology. These accomplishments were achieved through the educational framework provided by São Paulo State University Júlio de Mesquita Filho (UNESP).
Technical Support Analyst
2/2/2013 - 9/2/2013

Provided technical support for clients of an Internet service provider, specializing in diagnosing and resolving connectivity issues. Managed the sale of Internet plans, ensuring clients received tailored service packages to meet their needs. Gained extensive experience in IT infrastructure development and maintenance, including troubleshooting and repairing hardware for desktops, laptops, and servers. Developed expertise in the installation and configuration of both Linux and Windows operating systems within client-server environments. Proficiently configured, installed, and delivered technical assistance for VOIP systems, ensuring seamless voice communication services for clients.
Intern
1/2/2011 - 12/2/2012

Specialized in IT infrastructure for Presidente Prudente and the surrounding region in Brazil, encompassing support and maintenance of various computing devices including desktops, servers, and laptops. Developed expertise in managing and troubleshooting hardware and operating systems in both client and server environments. Adept at configuring and maintaining robust computer networks, providing comprehensive IT help-desk support, and enhancing overall system reliability and performance. Demonstrated ability to deliver technical assistance and resolve issues efficiently within the constraints of the Sao Paulo State Government's IT framework.
Professor/Computer Science Instructor
7/2/2007 - 12/2/2008

Developed and executed a comprehensive Basic Windows and Microsoft Office Package Course targeted at municipal school students, successfully enhancing digital literacy within the community of Salmourão and the surrounding region in Brazil. Acquired and utilized technical proficiency in Windows operating systems and Microsoft Office Suite applications, including Word, Excel, PowerPoint, and Outlook. Integrated teaching methodologies suitable for various learning levels, focusing on practical application and user engagement. Utilized educational tools and frameworks to create an interactive and accessible learning environment that facilitated effective instructional delivery. Ensured optimal functionality of classroom technology and maintained systems for seamless course operations. Demonstrated the ability to adapt strategies to address diverse student needs and technological challenges.
High School Math Teacher
1/2/2006 - 12/2/2009

Demonstrated extensive teaching expertise in Mathematics for both Elementary and High School students. Developed comprehensive lesson plans tailored to diverse learning needs and fostered a supportive learning environment. Proficient in integrating educational technologies to enhance student engagement and comprehension, utilizing tools such as interactive whiteboards and online learning platforms. Designed and implemented rigorous assessment methods to track student progress and provided constructive feedback for continuous improvement. Collaborated with fellow educators to ensure curriculum alignment and consistency across grade levels. Developed skills in classroom management, adapting teaching strategies to accommodate varied learner profiles, and maintaining clear communication with parents regarding student performance and development.