# Technical Support Engineer, Application Security

**Company**: Cloudflare
**Location**: Singapore
**Work arrangement**: onsite
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://job-boards.greenhouse.io/cloudflare/jobs/8229993?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_84e68bf8-4b3

## Description

## About the Role

Cloudflare is seeking an experienced Technical Support Engineer for Application Services/Performance to join our team. You will work with our largest and most technically sophisticated customers on a variety of technical support issues to ensure they can deploy and operate Cloudflare's App Services solutions with confidence.

### Responsibilities

- Serve as a trusted technical advisor for our Enterprise customers, responding to and resolving inquiries and incidents related to Application Services/Performance, while delivering timely, high-quality and personalized assistance.

- Work directly with customers to diagnose, troubleshoot and resolve complex technical issues involving DNS, HTTP Errors, IAM, Load Balancing, Caching, CORS, SSL/TLS, Network, and other Application Services/Performance related configurations.

- Work with Engineering and Operations teams to remediate issues, suggest steps to mitigate, and apply the appropriate mitigation, when applicable.

- Create and maintain knowledge base articles, technical guides, and troubleshooting documentation for internal and customer use.

- You have a solid grasp of problem-solving with command line tools (dig/traceroute/curl/tcpdump).

- You have experience writing scripts in Bash, Python, JavaScript, or other scripting language.

- You have experience installing and configuring web servers like Apache, Nginx, and IIS.

- Work with Engineering and Product teams to improve products and tools.

### Requirements

- You must have a minimum of 4 years’ experience working as a Technical Support Engineer supporting globally distributed reverse-proxy CDN platforms, with hands-on expertise in content caching, performance optimization, traffic routing, and edge delivery services similar to Cloudflare’s core network offerings.

- Exceptional troubleshooting and problem-solving skills, with the ability to simplify complex concepts for customers.

- Strong customer service orientation and communication skills, both written and verbal.

- Ability to work independently and collaboratively in a fast-paced, dynamic environment.

- Strong understanding of L4/L7 protocols and concepts including, TCP/UDP, DNS, HTTP/S, IAM, Load Balancing, Caching, CORS, SSL/TLS, Network with a particular focus on Anycast concepts.

- Have experience using online diagnostic and monitoring platforms , including DNS lookup tools, global ping and traceroute testers, SSL/TLS configuration analyzers, and synthetic transaction or real-user monitoring services , to troubleshoot DNS resolution, network latency, certificate issues, and global service availability problems.

- Have experience using investigative observability tools such as Kibana, Grafana, Zabbix, Sentry, and live log-tailing utilities to analyze logs, trace issues, and pinpoint root causes of performance or reliability problems.

- Confident with command line and tools, including curl, dig, traceroute, openssl, git.

- Experience in a web development and / or hosting environment such as installing and configuring web servers like Apache, Nginx, Caddy and IIS.

- You are competent at writing scripts in Bash, Python, JavaScript or other scripting language.

- You have worked with PostgreSQL, MySQL, MS SQL, and other database servers.

- Bachelor’s degree in Computer Science, Cybersecurity, or a related field (or equivalent experience).

### Nice to Have

- Experience in a shift-based or global support environment.

- Familiarity with SLA/KPI metrics and real-time queue management.

## Skills

### Required
- TCP/UDP
- DNS
- HTTP/S
- IAM
- Load Balancing
- Caching
- CORS
- SSL/TLS
- Network
- Anycast
- Kibana
- Grafana
- Zabbix
- Sentry
- curl
- dig
- traceroute
- openssl
- git
- Bash
- Python
- JavaScript
- PostgreSQL
- MySQL
- MS SQL

### Nice to have
- shift-based or global support environment
- SLA/KPI metrics
- real-time queue management

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Source: [Apply at job-boards.greenhouse.io](https://job-boards.greenhouse.io/cloudflare/jobs/8229993?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)