Breno peixoto dos santos
Breno peixoto dos santos

Site Reliability Engineer (SRE) / IT Infrastructure and Cloud Engineer

Open to offers · Member since 28 Sep 2026
Location
Montes Claros, Brazil
Desired salary
Confidential
Work preference
Remote Only / Part Time, Contract, Freelance
Experience level
Mid

About

Professional summary

I am a Senior IT Infrastructure and Site Reliability Engineering professional with more than 15 years of experience across infrastructure, networking, information security, cloud operations, and IT governance. I focus on building secure, available, scalable, and resilient corporate technology environments.

I work hands-on with Linux and Windows server administration, AWS and Azure cloud platforms, Kubernetes, Docker, Terraform, Ansible, CI/CD pipelines, monitoring, and incident response. My experience spans both traditional enterprise infrastructure and modern cloud-native architectures.

In my current SRE work, I support the operation and evolution of more than 20 corporate systems. I design and manage production environments, automate infrastructure, maintain observability platforms, define SLI/SLO/SLA indicators, and contribute to backup, recovery, security, and reliability practices.

I have substantial experience in information security and compliance, including ISO 27001, ISO 27002, GAMP, risk management, audit evidence preparation, control reviews, and interactions with international auditors and clients. I have also worked closely with SOC teams on security monitoring and incident response.

My background includes building IT departments from the ground up, delivering Microsoft 365 and Azure migrations, managing virtualization and ITSM environments, leading infrastructure projects, and supporting critical healthcare and corporate environments. I combine technical execution with documentation, process improvement, training, stakeholder communication, and cross-functional collaboration.

I am comfortable translating operational and business requirements into sustainable technology solutions. I bring a continuous-improvement mindset to infrastructure, security, cloud, automation, and service reliability challenges.

Skills

53 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Site Reliability Engineer (SRE) Quality

I contribute to cloud-services architecture and manage production and test environments on AWS, including ECS and EKS clusters, RDS, load balancing, autoscaling, VPS environments, and infrastructure automation with Terraform and Ansible.

I build and support CI/CD deployment pipelines using Linux and Azure DevOps Pipelines. I also operate Grafana, Zabbix, and Portainer for observability and container management, while supporting network architecture, DNS, DMZ design, Wi-Fi planning, and MikroTik infrastructure.

I perform SRE and security responsibilities including SLA, SLO, and SLI definition, incident response, backup and recovery planning, security-policy monitoring, application pentesting, vulnerability reporting, and SOC support for a SaaS platform serving US and EU clients.

Infrastructure Analyst / Systems Manager, IT Compliance & Information Security Quality / Novo Nordisk

I helped found and structure the IT department and deployed a cloud-first environment based on Microsoft 365, Azure, and Entra ID. I configured Teams, SharePoint, and Exchange, managed identity, password, and MFA controls, and completed an email migration to Microsoft 365 with no data loss or service interruption.

I managed VMware and Proxmox virtualization, automated backup processes, implemented GLPI for asset management and ITSM, and defined ticketing workflows, prioritization, SLAs, and L1 through L3 support processes. I also implemented QMS processes using Moodle and SeedDMS.

For Novo Nordisk global-pharma operations, I conducted ISO 27001 and ISO 27002 risk assessments, supported GAMP validation and verification, prepared evidence for national and international audits, collaborated daily with international teams in English, and coordinated with SOC teams on security monitoring and events.

Senior Project Manager Interact

I managed system implementation schedules from development through go-live, coordinating customers, technical teams, commercial areas, and delivery stakeholders.

I trained technical teams, presented KPIs and management reports, participated in strategic meetings, and led infrastructure design, implementation, and cloud-environment operations. My work focused on delivery quality, deadline management, and alignment between client and technical requirements.

Business Consultant & IT Support Interact

I prospected, negotiated, and closed contracts with corporate customers while maintaining customer relationships across Brazil. I also provided Tier 1 technical support for users in multiple regions.

I automated operational processes with advanced Excel and VBA, wrote SQL queries for data extraction and analysis, and served as a bridge between technical and commercial teams to align expectations and deliverables.

Infrastructure & Systems Analyst Oncovida Hospital

I acted as technical lead for a hospital ERP migration in a critical healthcare environment during the COVID-19 pandemic. I coordinated on-site and remote teams while ensuring data integrity, continuity, technical compliance, and delivery within deadlines.

I administered Linux servers and PostgreSQL supporting the ERP, managed virtual machines and virtualization environments, administered firewall proxy services, and deployed VPN access for remote hospital staff.

I maintained the availability and security of critical hospital systems using Linux, PostgreSQL, VMware, Hyper-V, firewall proxy, VPN, and information security practices.

Junior Python Developer Mupi System

I developed a pipeline to retrieve and visualize public financial data in Jupyter Notebook. The work included statistical analysis and regression methods to support data interpretation.

I applied Python and notebook-based analysis techniques to transform public data into visual and analytical outputs.

IT Consultant / Co-founder Olimpo Tecnologia da Informação

I co-founded an IT consulting operation focused on customer infrastructure deployments, including virtualization projects from design through operations.

I supported enterprise networking initiatives using pfSense, switching, structured cabling, and Wi-Fi. I also contributed to an ERP migration project that reduced licensing costs by 65%.

Co-founder, Live Broadcasting Streaming & Events Company

I co-founded and operated a live broadcasting business during the pandemic, delivering infrastructure for live streams, livestock auctions, and events.

My responsibilities covered audiovisual infrastructure, load balancing, audio and video operations, and delivery support for live event environments.

VoIP Activation & Support Technician TSI Telecom

I managed a city-wide portfolio of more than 15 headquarters and branch locations and supported over 100 active users. I installed and configured IP PBX and VoIP phones and administered Asterisk servers on Linux.

I performed command-line troubleshooting on Linux servers, used SQL Server queries for fault diagnosis, and provided direct technical support and relationship management for corporate customers.

Support & Network Installation Technician Gama Sistemas e Informática

I diagnosed and resolved hardware and operating-system issues in corporate environments. After three weeks in the role, I was selected for Cisco router training and certification.

I installed and maintained Cisco routers for critical banking projects involving Banco do Brasil and Santander, supporting high-availability and high-security network environments.

Information Technology Intern City Hall / Department of the Environment

I configured and administered a Linux Samba server for corporate file sharing, including user management and access-log auditing. I also redesigned and updated the department's institutional website.

I participated in a network infrastructure overhaul involving structured cabling specifications, equipment inventory, and router and switch configuration.

Education

Learning history

SENAC

Computer Network Technician, Computer Networks

Completed technical program including a dedicated module on iptables and Linux firewalls.

Udemy

AWS Cloud Practitioner Essentials (CCP), Cloud Computing

Cloud fundamentals training focused on AWS Cloud Practitioner concepts.

Udemy

Snowflake – The Complete Masterclass, Data Cloud

Training in Snowflake data cloud concepts.

Udemy

Professional Ethical Hacker with Kali Linux v2026, Ethical Hacking

Ethical hacking and Kali Linux training.

Alura

Docker — Building and Managing Containers, Containers

Training in Docker container building and management.

Alura

Terraform — Automate Your Infrastructure, Infrastructure as Code

Training in Terraform-based infrastructure automation.

Alura

Ansible — Infrastructure as Code, Infrastructure Automation

Training in Ansible-based infrastructure automation.

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