Cybersecurity Engineer - Cryptography & Key Management

Visa Hunt; Singapore; On-site; SGD 48,000 - 75,000; Full time

Job summary

Visa Hunt is seeking a Security Administrator to manage encryption, key management, and certificate lifecycles. You will oversee SSL/TLS activities, issue and renew certificates, and maintain cryptographic keys to safeguard enterprise data.

The ideal candidate holds a Diploma in Computer Science or related field with 1–2 years of experience in a finance setting, and demonstrates strong analytical, communication, and teamwork skills, with willingness for after-hours maintenance.

Qualifications

• Diploma in Computer Science or related field.
• 1–2 years’ relevant experience, preferably in a Finance Institution.
• Strong analytical, problem-solving, and organizational skills.
• Excellent written and verbal communication.
• Team player with stakeholder management abilities.
• Willingness to work outside normal hours, including weekends.
• Knowledge of cryptography, TLS, and SSH.

Responsibilities

• Administer and support the SSL/TLS certificate lifecycle (CSR, issuance, renewal, deployment, revocation).
• Issue, renew, and revoke digital certificates for multiple platforms.
• Maintain cryptographic keys and related security infrastructure.
• Provide security administration support including after-hours maintenance.
• Collaborate with vendors and stakeholders to ensure data protection controls.

Skills

Data encryption

Cryptography

Key management

TLS/SSH knowledge

Security controls

Documentation

Analytical skills

Communication

Teamwork

Stakeholder management

Education

Diploma in Computer Science or related field

Tools

Hardware Security Modules (HSMs)

Certificate lifecycle management

Job description

Visa Hunt is seeking a Security Administrator to manage encryption, key management, and certificate lifecycles. You will oversee SSL/TLS activities, issue and renew certificates, and maintain cryptographic keys to safeguard enterprise data.

The ideal candidate holds a Diploma in Computer Science or related field with 1–2 years of experience in a finance setting, and demonstrates strong analytical, communication, and teamwork skills, with willingness for after-hours maintenance.