Defense Architecture Lead & Technical Project Consultant

OPENSOURCE TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

OpenSource Technologies Pte. Ltd. is seeking a Design Architect / Technical Project Consultant to act as the technical authority for a major defence account, providing architecture governance, leadership, and project oversight.

You will lead design reviews, validate designs against security and operational requirements, mentor engineers, and support vulnerability management across projects. You will drive PDR/CDR governance, review complex solutions, guide remediation, and ensure delivery

Qualifications

• 4–6 years in technical design, architecture, system integration, or infrastructure engineering.
• Professional certifications in architecture, data networking, cybersecurity, cloud or infrastructure technologies.
• Experience with servers, storage, virtualization/cloud, and backup solutions.
• Experience in defence-related environments.
• Knowledge of vulnerability assessment and remediation.
• Stakeholder management and strong presentation skills.
• Ability to work independently; security clearance may be required.

Responsibilities

• Provide architecture governance, technical leadership, and escalation support.
• Lead Preliminary Design Reviews (PDR) and Critical Design Reviews (CDR).
• Review and approve technical designs for compliance with requirements.
• Validate MOPs prior to implementation.
• Conduct POC activities and solution demonstrations.
• Offer architectural guidance for complex infrastructure and system solutions.
• Serve as Level 3 escalation point for incidents and issues.
• Drive root cause analysis and remediation actions.
• Review security advisories and vulnerability assessments.
• Contribute technical oversight to medium–large projects.

Skills

Architecture governance

Technical leadership

Stakeholder management

Presentation skills

Education

BSc/BEng in CS/IT/Engineering

Tools

Cisco networking

Firewalls (Check Point/ Palo Alto/ Fortinet)

Cloud infrastructure

Job description

OpenSource Technologies Pte. Ltd. is seeking a Design Architect / Technical Project Consultant to act as the technical authority for a major defence account, providing architecture governance, leadership, and project oversight.

You will lead design reviews, validate designs against security and operational requirements, mentor engineers, and support vulnerability management across projects. You will drive PDR/CDR governance, review complex solutions, guide remediation, and ensure delivery