maycon @ edge-infra :~$ whoami

Maycon Ritzmann

Staff Site Reliability Engineer ▋

Designing and operating edge infrastructure at Latin American scale – Kubernetes, API Gateways, AWS, and traffic engineering for systems that can't afford to fail.

Get in touch GitHub LinkedIn Projects
~8B
daily requests
12+
years of experience
5+
years at iFood
Staff
SRE level
Brazil · UTC-3 · Working remotely
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01 / about

Who I am

Staff Site Reliability / Production Engineer with 12+ years of experience operating and evolving mission-critical systems in high-scale cloud environments.

Strong background in incident leadership, reliability engineering, and cross-team collaboration to ensure availability, performance, and resilience under pressure. Experienced in designing and operating cloud-native platforms, leading modernization and migration initiatives, and improving system observability and operational maturity.

Hands-on expertise with AWS, Kubernetes, Terraform, CI/CD, and observability stacks – always with a focus on reducing MTTR, preventing incidents, and enabling engineering teams to move faster and safer.

Currently working as a Staff SRE at iFood – Latin America's largest food delivery platform – designing and operating edge and API gateway infrastructure handling ~8 billion daily requests.

Focus Areas

  • Edge & Traffic Infrastructure
  • API Gateway Platforms
  • Kubernetes & Cloud (AWS)
  • Incident Command & SRE
  • Observability & Reliability
  • Platform Automation (Python)

Languages

Portuguese Native
English Full Professional
French Elementary

Education

DevOps Engineering (CST)

Anhanguera · 2022–2024

Computer Technician

UNISOCIESC · 2012–2013

02 / experience

Career timeline

iFood

São Paulo, Brazil

5 years 3 months

February 2021 – Present

Staff Site Reliability Engineer

current

June 2025 – Present

11 months

  • › Architected and own iFood's API Gateway platform end-to-end, driving scalability and reliability for 2.2+ billion requests per month.
  • › Designed and operate the Edge traffic platform, sustaining ~8 billion daily requests with low-latency, high-availability delivery at global scale.
  • › Led performance and cost optimization across edge systems, cutting latency and error rates through blast radius reduction strategies and structured disaster recovery testing.
  • › Integrated Akamai and Cloudflare at depth to drive edge security and acceleration improvements, strengthening HTTP protocol resilience and CDN performance.
  • › Designed custom Kubernetes ingress classes for HTTP and gRPC workloads, enabling stable long-lived connections and optimized per-application traffic handling.
  • › Resolved complex network bottlenecks through Linux kernel and ENI-level tuning, improving throughput and stability under high-traffic scenarios.
  • › Command incident response as technical lead for high-severity events, driving fast recovery and restoring system stability across distributed teams.

Staff Production Support Engineer

June 2023 – June 2025

2 years 1 month

  • › Led incident response and recovery for high-traffic, business-critical systems, acting as escalation point and technical lead to minimize downtime during high-severity events.
  • › Automated operational workflows and platform improvements, reducing manual intervention and accelerating recovery times across production systems.
  • › Conducted root cause analyses and post-incident reviews, converting operational failures into engineering improvements that prevented recurrence.
  • › Built an AI-powered internal chatbot in Python using LlamaIndex, streamlining operational workflows and reducing support friction for the team.
  • › Architected and operated Kubernetes platforms on AWS, ensuring scalable, resilient, and predictable performance for production workloads.
  • › Automated infrastructure provisioning with Terraform, Packer, and Ansible, standardizing environments and improving deployment safety at scale.
  • › Evolved GitLab CI/CD pipelines to enable faster, more reliable releases, reducing deployment risk across critical services.
  • › Owned observability strategy across production, integrating Datadog, Prometheus, and Grafana to accelerate detection and diagnosis of incidents.
  • › Optimized Redis/ElastiCache, Kong API Gateway, Akamai, and NGINX, improving performance and reliability of key production components.
  • › Mentored junior engineers on SRE practices and operational standards, raising the technical bar and improving team readiness for high-severity incidents.

Senior Production Support Engineer

February 2021 – June 2023

2 years 5 months

  • › Operated and evolved Kubernetes-based platforms and AWS infrastructure supporting millions of daily active users.
  • › Contributed to reliability, observability, and incident response practices across business-critical services.
  • › Optimized performance and reliability of critical components including Redis/ElastiCache, Kong API Gateway, Akamai, and NGINX.

TOTVS

Joinville, Santa Catarina, Brazil

6 months

September 2020 – February 2021

Site Reliability Engineer

September 2020 – February 2021

6 months

  • › Operated and evolved Kubernetes platforms on AWS (EKS, ECR, VPC, Route 53, CloudFront, CloudWatch), ensuring high availability and predictable deployments for critical applications.
  • › Automated CI/CD pipelines with GitLab, Jenkins, and Bamboo, reducing deployment friction and improving release reliability across teams.
  • › Implemented Terraform-based IaC across the platform, standardizing environments and eliminating configuration drift.
  • › Built monitoring and alerting with Prometheus, Alertmanager, Grafana, and Zabbix, improving incident detection and response time.
  • › Automated Linux-based infrastructure management with Ansible and Chef, improving operational consistency across environments.
  • › Partnered with engineering teams to translate reliability requirements into practical platform improvements.

Eiti Solutions

Joinville, Brazil

1 year 8 months

October 2018 – May 2020

Infrastructure Analyst

October 2018 – May 2020

1 year 8 months

  • › Operated and maintained business-critical infrastructure – networks, servers, and core services – ensuring continuous availability and operational stability.
  • › Managed on-premises and hybrid Kubernetes clusters, building foundational container orchestration skills in high-criticality production environments.
  • › Automated CI/CD workflows with Jenkins, Ansible, and Puppet, reducing manual operational effort and improving deployment consistency.
  • › Built monitoring and observability with Zabbix, Grafana, and Prometheus, improving visibility into system health and accelerating issue detection.
  • › Administered core network services including DNS, DHCP, and email platforms (Zimbra, Postfix), ensuring reliable communications infrastructure.
  • › Operated Docker Swarm and Foreman environments, supporting application lifecycle management across containerized workloads.
  • › Contributed to AWS and IBM Cloud adoption initiatives, supporting the team's transition to hybrid and cloud-native architectures.

Open Technology

Joinville, Brazil

4 years 9 months

January 2014 – September 2018

Network Administrator

April 2017 – September 2018

1 year 6 months

  • › Operated AWS-based and on-premises infrastructure supporting Linux and Windows workloads across applications, databases, web, and email services.
  • › Implemented Puppet-based IaC to standardize system configurations, reducing manual operations and configuration drift.
  • › Designed and maintained production email platforms (Postfix, Dovecot, Roundcube, anti-spam), ensuring reliable communications for business workloads.
  • › Automated repetitive operational tasks with shell scripting, improving team efficiency and reducing toil.
  • › Deployed and maintained Zabbix monitoring and alerting, ensuring system availability and early detection of issues.
  • › Administered Linux and Windows Server environments (2003–2016, Debian, Ubuntu, CentOS), managing OS lifecycle and system health.
  • › Managed core network services – DNS, DHCP, domain controllers, file sharing, print, and remote access.
  • › Designed firewall and network security configurations using iptables, proxies, and traffic control.
  • › Defined and validated backup and disaster recovery routines, ensuring data protection and operational continuity.

Computer Technician

January 2014 – April 2017

3 years 4 months

  • › Delivered hands-on technical support for servers, desktops, and notebooks in business environments, ensuring continuity of client operations.
  • › Assembled, configured, and maintained hardware systems to operational and client specifications, developing strong foundations in system internals.
  • › Troubleshot networking and OS issues across Linux and Windows environments, building early expertise in TCP/IP and system operations.
  • › Advised clients on technical requirements and equipment selection, developing customer-facing communication and problem-solving skills.

03 / skills

Technical toolkit

Traffic & Edge

Nginx Kong API Gateway Akamai Cloudflare Envoy gRPC HTTP/2 NGINX Ingress

Cloud – AWS

EKS EC2 VPC Route 53 CloudFront ElastiCache ECR CloudWatch RDS EBS SQS S3

Infrastructure & IaC

Kubernetes Terraform Ansible Packer Puppet Docker Linux Helm

Observability

Datadog Prometheus Grafana Alertmanager Zabbix OpenTelemetry

CI/CD & Automation

GitLab CI Jenkins Bamboo Python Node.js Bash / Shell LlamaIndex

Networking

TCP/IP iptables Service Mesh Content Delivery Networks DNS

SRE Practices

Incident Command Production Engineering Post-mortem Culture Capacity Planning Blast Radius Reduction Disaster Recovery Distributed Systems

Credentials

Certifications

Grouped by domain – same stack as the toolkit above.

Kubernetes & cloud

  • CKA

    Certified Kubernetes Administrator

    The Linux Foundation

  • AWS

    Architecting on AWS

    Amazon Web Services

  • AWS

    Cloud Practitioner Essentials

    Amazon Web Services

Infrastructure & platforms

  • TF

    HashiCorp Certified: Terraform Associate

    HashiCorp

  • LPI

    LPIC-1

    Linux Professional Institute

Observability

  • DD

    Datadog Certified: Log Management Fundamentals

    Datadog

04 / projects

Things I'm building

Side projects and public initiatives – not day-job work, but where I invest in the broader SRE and platform community.

  • SRE Labs

    Live

    Hands-on learning for SRE, DevOps, cloud, and Kubernetes – challenges, community, and portfolio-ready work.

    About

    SRE Labs is my public education project: a place to grow a serious, practical learning ecosystem (not just courses) for people entering reliability and platform roles. The focus is real exercises, peer community, and eventually cohorts and self-service labs – so newcomers can go from fundamentals to job-ready with evidence they can ship in production.

    Community Education Kubernetes DevOps
    Visit sre-labs.io

  • Practical SRE Mentorship

    Live

    A guided 30-day production-style challenge with four 1:1 live sessions – for developers and SREs who want real practice, not only courses and certs.

    About

    One-to-one mentorship built around incidents, observability, and reliability trade-offs you can defend in interviews. You get a tailored challenge, a GitHub playbook, help shaping your own study lab, and live videocalls so the work becomes a portfolio case aligned with what hiring teams actually ask in production roles.

    Mentorship SRE Education Career
    Visit mentoria.ritzmann.io

05 / contact

Let's connect

I'm always open to interesting conversations about infrastructure, reliability engineering, and challenging problems at scale.

Whether it's a technical discussion or just to say hello – feel free to reach out.

$ curl -X POST

--data '"opportunity"'

mayconritzmann@gmail.com

→ 200 OK · will reply within 24h

or reach me at +55 47 99997-4698

Email

mayconritzmann@gmail.com

WhatsApp

+55 47 99997-4698

LinkedIn

linkedin.com/in/mayconritzmann

GitHub

github.com/mayconritzmann