Administrador de Sistemas Pleno / Systems Administrator, Senior

Work set-up: 
Full Remote
Contract: 
Experience: 
Senior (5-10 years)
Work from: 

Offer summary

Qualifications:

3–5+ years of hands-on experience with Cloudflare services, including DNS, WAF, CDN, and security configurations., Strong understanding of networking fundamentals such as TCP/IP, HTTP/S, DNS, and TLS/SSL., Proficiency in scripting languages like Python, Bash, or Ruby for automation tasks., Experience with cloud platforms like OCI, AWS, Azure, or GCP, and infrastructure as code tools such as Terraform..

Key responsibilities:

  • Manage and optimize Cloudflare services including DNS, WAF, and proxy configurations.
  • Administer and enhance cloud infrastructure across platforms like OCI, AWS, or Azure.
  • Perform system maintenance and troubleshoot issues on Linux/Unix systems.
  • Automate routine tasks and monitor system performance using various observability tools.

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Markmonitor https://www.markmonitor.com
501 - 1000 Employees
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Job description

Who we are.

Newfold Digital is a leading web technology company serving millions of customers globally. Our customers know us through our robust portfolio of brands. We have some of the industry's most prominent and storied go-to-market brands, including Bluehost, HostGator, Domain.com, Network Solutions, Register.com and Web.com. We help customers of all sizes build a digital presence that delivers results. With our extensive product offerings and personalized support, we take pride in collaborating with our customers to serve their online presence needs. The strength of our company lives in the intersection of our people, our customers, and our brands.

Key Responsibilities  

 

Cloudflare Administration  

  • Manage DNS, WAF, firewall rules, caching, and rate limiting policies  
  • Optimize proxy configurations, security settings, and performance features (e.g., Argo, Workers)  
  • Mitigate threats (DDoS, bots) and conduct regular audits  
  • Maintain documentation and stay updated with new Cloudflare features  

Cloud & Infrastructure Management  

  • Administer and optimize OCI or other cloud platforms (compute, storage, IAM, networking)  
  • Automate deployments using Terraform, Ansible, and CI/CD pipelines  
  • Monitor and troubleshoot performance using Grafana, Prometheus, Zabbix, etc  

System Operations  

  • Perform system maintenance and patching on Linux/Unix platforms  
  • Troubleshoot OS, hardware, and database (MySQL/PostgreSQL) issues  
  • Automate routine tasks via Bash, Python, or Ruby scripts  

  

Required Skills  

  • 3–5+ years of hands-on Cloudflare experience in production  
  • Strong understanding of Cloudflare WAF, DNS, CDN, caching, and Zero Trust  
  • Expertise in managing proxies (NGINX, HAProxy), DDoS mitigation  
  • Scripting knowledge: Python, Bash, or Ruby  
  • Proficiency with IaC tools (Terraform), observability (Grafana, Prometheus)  
  • Solid networking fundamentals: TCP/IP, HTTP/S, DNS, TLS/SSL  
  • Cloud experience with OCI or equivalent (AWS, Azure, GCP)  

  

Preferred Experience  

  • 6+ years managing hybrid cloud infrastructure  
  • Experience with Cloudflare Workers, Pages, or Load Balancing  
  • Familiarity with CI/CD, Ansible, Puppet, or OCI CLI  
  • Security/cloud certifications (OCI, AWS, Azure)  

We are seeking a seasoned Senior Systems Administrator to lead the management and optimization of our Cloudflare environment and broader cloud infrastructure. This role demands hands-on expertise in Cloudflare services—DNS, WAF, CDN, caching, proxy, and security configurations—to enhance the performance and protection of our global web platforms.  

You will also manage cloud platforms such as OCI, AWS, Azure, or GCP, with a strong focus on Linux/Unix systems, automation, observability, and hybrid infrastructure operations.

Why you’ll love us. 

  • We’ve evolved; we provide three work environment scenarios. You can feel like a Newfolder in a work-from-home, hybrid, or work-from-the-office environment.  

  • Work-life balance. Our work is thrilling and meaningful, but we know balance is key to living well. 

  • We celebrate one another’s differences.We’re proud of our culture of diversity and inclusion. We foster a culture of belonging. Our company and customers benefit when employees bring their authentic selves to work. We have programs that bring us together on important issues and provide learning and development opportunities for all employees.  We have 20 + affinity groups where you can network and connect with Newfolders globally.  

  • We care about you. We provide excellent benefits from OSDE 310 Health Care, Monthly Salary Reviews, Tuition Reimbursement, Internet Reimbursement, In-company English Lessons, LinkedIn learning, Referral Program Bonus, F5 extra days off, Annual Bonus, and an opportunity to work on Global projects with Multicultural team 

  • Where can we take you? We’re fans of helping our employees learn different aspects of the business, be challenged with new tasks, be mentored, and grow their careers. Unfold new possibilities with #teamnewfold!  

 

Required profile

Experience

Level of experience: Senior (5-10 years)
Spoken language(s):
English
Check out the description to know which languages are mandatory.

Other Skills

  • Teamwork
  • Problem Solving

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