Technical Security Officer (Network & Infrastructure)

JULIAN GREY CORPORATE ADVISORY PTE. LTD.; Singapore; On-site; SGD 50,000 - 70,000; Full time

Job summary

An established IT company in Singapore is looking for a candidate to support pre-sales and post-sales activities with a focus on creating secure network setups. The ideal candidate should have a diploma in Computer Science, minimum 2 years of relevant experience in network and security, as well as hands-on experience in configuring switches and server environments. This role offers the opportunity to contribute to cutting-edge security solutions and work within a dynamic team culture.

Qualifications

• Minimum 2 years of relevant experience in network/security environments.
• Experience hardening and configuring Linux/Windows Server environments.
• Familiarity with compliance standards such as CIS Benchmarks or NIST.

Responsibilities

• Support technical design of secure network setups based on Zero Trust principles.
• Implement encryption and security hardening solutions to protect data.
• Assist in project planning for routine maintenance of security appliances.

Skills

Technical input in pre-sales and post-sales

Network security

Server hardening

Cryptography implementation

Hands-on experience with switches and VLANs

Awareness of emerging cyber threats

Education

Diploma in Computer Science, Engineering, Information Technology, or Cyber/Network Security

Tools

Trend Micro

Job description

Company Profile

Julian Grey’s client is an established IT company in Singapore, recognized for its innovative solutions and dynamic team culture.

Responsibilities

• Support pre-sales and post-sales activities by providing technical input and helping to design secure network setups based on Zero Trust principles.
• Help to assess and implement encryption and security hardening solutions (e.g., PKI, HSM, secure transport protocols) to protect data in transit and at rest.
• Assist in project planning and implementation, including hardened system migrations, routine maintenance of security appliances, and keeping technical documentation updated.
• Support on-site security operations in Data Centers and IT environments, including secure setup of servers/switches and handling security-related helpdesk escalations.
• Carry out infrastructure rollout tasks such as installation and “burn-in” testing, and support capacity planning with consideration for encryption and monitoring overhead.
• Work with vendors and internal teams to ensure hardware/software deliveries meet security and compliance needs (e.g., genuine parts, patched firmware, proper documentation).

Requirements

• Diploma in Computer Science, Engineering, Information Technology, Cyber/Network Security, or a related field.
• Minimum 2 years of relevant experience in network/security or infrastructure environments (network security, firewalls, or basic cryptography implementation preferred).
• Hands-on experience configuring switches and VLANs securely to separate and protect critical traffic.
• Basic to intermediate experience hardening and configuring server environments such as Linux/Windows Server (AIX/Solaris is a plus).
• Experience installing, configuring, and troubleshooting network/server hardware in Data Centers, offices, or remote sites.
• Familiarity with endpoint protection tools (e.g., Trend Micro) is an advantage.
• Interest in security best practices and standards such as CIS Benchmarks or NIST, and awareness of emerging cyber threats.