CDN/WAF Developer

NTT Data Singapore; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

NTT Data Singapore is seeking a seasoned security professional to join its security engineering team. You will leverage cloud and network security expertise to design and implement secure infrastructure, with a focus on HTTP, TLS, VPN, and DNS, across Linux/Windows environments.

The role requires minimum 5+ years of hands-on security experience, strong analytical skills, and excellent communication. Singapore-based, on-site collaboration with multi-disciplinary teams.

Qualifications

• Bachelor's degree or higher in CS, math, engineering, or related field.
• AWS / Google Cloud / Azure certifications are highly regarded.
• Knowledge of CDN, WAF concepts and technologies.
• OWASP security knowledge; CISSP is a plus.
• Analytical mindset with ability to understand complex systems.
• Experience with Cloudflare-like solutions (Magic Transit, WAF Defender, etc.).
• Familiarity with HTTP/IP/DNS concepts and networking basics.
• Unix scripting and web programming knowledge (Perl, PHP, Shell, J2EE, .NET, JSP/ASP).
• Server virtualization and VCS clustering knowledge.
• Strong IT security fundamentals and protocol experience.
• Linux/Windows OS exposure and DevOps tooling familiarity.
• Minimum 5+ years of relevant technical experience.

Skills

AWS / Cloud certs

CDN/WAF concepts

OWASP

CISSP (adv)

Self-motivation

Magic Transit

WAF Defender

Global Traffic Manager

Dynamic Site Accelerator

HTTP protocol

TCP/IP, IPv6, VPN, DNS, DHCP

SSL/TLS/IPSec

Perl

PHP

Shell scripting

J2EE

C#/.NET

JSP/ASP

Server virtualization

VCS clustering

IP/TCP/HTTP/DNS/SSL

OpenSSL

SSH

SFTP

Kerberos

PGP

HTTPS

JMS

MQ

ClearCase

Java Spring

ClearQuest

Linux

Windows

Omniture

Google Analytics

Jenkins

Bitbucket

Bamboo

Ansible

Chef

Puppet

Terraform

AWS EC2

S3

ELB

ALB

NFS

SDLC

Software QA

Version control

Communication

Teamwork

Analytical

Multitasking

5+ years experience

Education

Bachelor's degree or higher

Job description

Essential skills required

• Bachelor degree (or higher), with exposure to computer science, math, engineering, or equivalent practical experience


• Certification in Amazon Web Services (AWS) / Google Cloud / Microsoft Azure


• Working knowledge in CDN architecture, Web application firewall (WAF) concepts and technologies


• Experience with general security technologies (OWASP), processes and concepts. Having certifications such as CISSP is an added advantage.


• Self-motivated, independent and able to understand complex systems


• Experience in CF's Solutions including Magic Transit Routed, Magic Transit Connect, WAF Defender, Web Application Firewall, Global Traffic Manager, Dynamic Site Accelerator, and more.


• In depth knowledge of OSI Model, in particular the HTTP protocol


• Knowledge and experience in network configurations such as TCP/IP subnets, IPv4 vs IPv6, VPN, DNS configurations, DHCP etc


• Experience with Network Security Protocols and standards like SSL, TLS, IPSec etc


• Experience with Unix and web-related programming or scripting languages: Perl, PHP, Shell Scripting, J2EE, .NET, C#, JSP, ASP, etc


• Knowledge in Server virtualization, VCS clustering concepts


• Solid understanding of Internet protocol concepts (IP, TCP, HTTP, DNS, SSL/TLS).


• Knowledge in OpenSSL, SSH, SFTP, KERBEROS, PGP, HTTPS etc

Additional skills

• Exposure application technologies like JMS, MQ, Clear case, Java Spring framework, Clear quest is an added advantage


• Exposure to OS like Linux and Windows


• Exposure to statistics tools like Omniture, Google Analytics etc


• Knowledge of DevOps tooling like Jenkins, BitBucket, Bamboo, Ansible, Chef, Puppet, Terraform is preferred


• Knowledge in AWS EC2, S3, ELB, ALB, NFS is preferred


• Strong understanding of SDLC methodologies


• Understanding of Software quality management, quality control management and version control management


• Excellent verbal and written communication skills, with proven ability to disseminate information in clear and correct manner to business and technical audiences


• Strong relationship building skills, with the ability positively influence the actions of others, working as a team player


• Strong analytical skills


• Ability to manage multiple priorities, commitments and projects.


• Minimum 5+ years of experience (in relevant technical skills mentioned above)