Certisign

Sysadmin / SRE Specialist

Certisign

full-time

Posted on:

Location Type: Hybrid

Location: São Paulo • 🇧🇷 Brazil

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Job Level

Mid-LevelSenior

Tech Stack

AnsibleDNSGrafanaKubernetesLinuxPrometheusPuppetPythonTCP/IPTerraform

About the role

  • Configure, maintain, and scale Kubernetes clusters in on-premises environments, ensuring high availability and performance.
  • Manage and optimize the infrastructure of physical and virtual servers, emphasizing automation and environment reliability.
  • Automate repetitive provisioning, configuration, and monitoring tasks for servers and applications using tools such as Ansible, Terraform, Puppet, etc.
  • Implement and manage API Gateway solutions to control traffic and optimize communication between microservices and systems.
  • Create and maintain monitoring and alerting systems to provide real-time visibility into the health of infrastructure and services using tools such as Dynatrace, Datadog, Prometheus, Grafana, ELK Stack, or similar.
  • Provide real-time support for infrastructure issues and collaborate with development teams to diagnose and resolve incidents.
  • Propose and implement infrastructure improvements focused on automation, security, performance, and reduction of operational costs.
  • Create and maintain detailed technical documentation of procedures, processes, and configurations.

Requirements

  • Strong expertise in Kubernetes, including installation, configuration, maintenance, and cluster scalability. (Certified Kubernetes Administrator - CKA)
  • Expertise in Linux systems administration in on-premises environments, including installation, configuration, and maintenance of physical and virtual servers. (Red Hat Certified Engineer - RHCE)
  • Experience with infrastructure automation using tools such as Ansible, Terraform, Puppet, or similar.
  • Strong knowledge of API Gateways (e.g., Kong, Apigee), with experience configuring and managing API traffic in on-premises environments.
  • Proficiency in observability tools (Zabbix, Dynatrace, Datadog, Prometheus, Grafana, ELK Stack).
  • Experience with networking and communication protocols (TCP/IP, HTTP, DNS, SSL/TLS), and knowledge of API security and encryption.
  • Scripting skills in languages such as Python and Shell.
  • Bachelor's degree in Computer Engineering, Information Systems, Networks, or related fields.
Benefits
  • Meal voucher on Flash card 🍽️
  • Grocery voucher on Flash card 🛒
  • SulAmérica health plan 🏥
  • MetLife dental plan 😁
  • TotalPass (gym benefit) 💪
  • Birthday day off 🎉
  • Childcare assistance 👶
  • Corporate university - UniSign 📚
  • Life insurance 🔒
  • Educational partnerships 🎓
  • SESC agreement 🏖️
  • Better Maternity Program 🤱
  • Extended maternity and paternity leave 👪
  • Pharmacy card 💊
  • Profit sharing (PLR) 💼

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
KubernetesLinux systems administrationInfrastructure automationAPI GatewaysObservability toolsNetworking protocolsScripting (Python, Shell)Configuration managementMonitoring systemsHigh availability
Soft skills
CollaborationProblem-solvingTechnical documentationCommunication
Certifications
Certified Kubernetes Administrator (CKA)Red Hat Certified Engineer (RHCE)