Open to opportunities

Alejandro Barrera

@alejandrobarrera

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Senior Cloud Engineer delivering SRE/DevOps automation and cloud migrations.

Colombia

Message

What I'm looking for

I want to help companies modernize with cloud computing—building reliable SRE/DevOps pipelines, automating deployments with Terraform, and supporting secure migrations that improve platform quality and customer impact.

I’m a senior Cloud Engineer with 7 years of experience across Linux systems, network/security foundations, and telecom-focused environments across public and private sectors. In my early career I was strongly related to Oracle and SQL Server database solutions, which gave me a solid base for designing reliable platforms end to end.

I’m certified as an Oracle Database 12c Professional (OCP). Over time, I shifted toward modern creation and innovation tools—especially cloud computing—because I believe teams that can’t adapt to this technological reality lose relevance. I’ve supported digital transformation through highly managed services and automated processes.

Today, I apply SRE/DevOps practices to improve deployment quality and speed: I identify and enhance deployment processes with automation, automate infrastructure deployments using IaC (Terraform), and design CI/CD pipelines oriented to application deployment. I also bring deep database and cloud migration expertise, including Oracle RAC + ASM + Data Guard + Multitenant, and migrations to Oracle Cloud and AWS (EC2, RDS, VPC, S3, CloudFront, IAM, Route 53, CloudWatch, SNS).

Experience

Work history, roles, and key accomplishments

Current

Cloud Engineer (SRE/DevOps)

Current

Globant

May 2022 - Present (4 years 1 month)

Supported digital transformation toward cloud computing by designing and implementing managed services and automated processes. Improved deployment workflows with automation and built CI/CD pipelines, including infrastructure deployment automation using Terraform.

Site Reliability Engineering (SRE)DevOps Cloud Computing Terraform CI CD Pipelines Managed Services

Site Reliability Engineer

Bolsa Mercantil de Colombia

Jul 2020 - Apr 2022 (1 year 9 months)

Designed and implemented managed cloud services and automated processes to enable the company’s digital transformation. Automated infrastructure deployments with Terraform and analyzed, designed, and implemented CI/CD pipelines for application deployment.

Site Reliability Engineering (SRE)Cloud Computing Terraform Infrastructure Automation CI CD Pipelines Managed Services

Solutions Architect

DB-System LTDA

May 2017 - Jul 2020 (3 years 2 months)

Administered Oracle databases (11g/12c) on RHEL 7 and managed migrations from on-prem to Oracle Cloud and AWS RDS. Architected and maintained Oracle 12c RAC with ASM, Data Guard, and Multitenant, and delivered AWS infrastructure using EC2, ELB, VPC, S3, CloudFront, IAM, RDS, Route 53, CloudWatch, SNS, and Terraform.

Oracle Database Administration Oracle 12C ASM AWS RDS AWS Infrastructure Terraform Performance Tuning

Database Administrator

IFX Networks

Mar 2015 - May 2017 (2 years 2 months)

Managed and created data extraction processes and performed transformation and loading using Integration Services and DellBoomi. Designed and tuned database models and BI process modeling using Analytics Services, supporting platform synchronization and high-availability solutions in SQL Server and Oracle.

SQL Server Administration Oracle Administration MySQL Administration Data Extraction Dell Boomi Database Modeling Process Modeling High Availability

Database Administrator

Gobernación de Boyaca

Jun 2013 - Dec 2014 (1 year 6 months)

Administered Oracle, SQL Server, MySQL, and PostgreSQL databases and handled Oracle and SQL Server backup and backup management. Also supported GNU/Linux and Windows Server administration and managed GIS-related activities.

Oracle Database Administration SQL Server Administration MySQL Administration PostgreSQL Administration Linux Administration Windows Server Administration Backup Geographic Information Systems (GIS)