Senior Systems Solutions Architect

O2 NETWORK PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

O2 NETWORK PTE. LTD. is seeking a Senior System Solutions Engineer to design, implement, and support end-to-end technical solutions that meet business and operational requirements. You will lead architecture, POC, integration, and delivery while guiding teams and ensuring secure, scalable outcomes.

You will collaborate with customers, project teams, vendors, and stakeholders, mentor junior engineers, and contribute to continuous improvement of technical standards and practices.

Qualifications

• Bachelor-level or diploma in CS/IT/Networking with proven design experience.
• Minimum 5 years designing and implementing IT system solutions.
• Experience documenting architectures and delivering technical reports.
• Professional certifications are advantageous (CCNA/CCNP/Azure/ITIL).

Responsibilities

• Lead analysis of customer needs, design practical technical solutions.
• Create system architectures and integration workflows for projects.
• Lead POCs, validate feasibility, ensure security and reliability.
• Provide technical leadership and mentor junior engineers.

Skills

System design

IT infrastructure

Project leadership

Technical documentation

Cybersecurity awareness

Mentoring

Stakeholder management

Education

Diploma/Degree in CS/IT/Networking

Tools

Microsoft Azure

Active Directory

SharePoint

ERP/HRMS

Virtualisation/Hyper-V

Job description

O2 NETWORK PTE. LTD. is seeking a Senior System Solutions Engineer to design, implement, and support end-to-end technical solutions that meet business and operational requirements. You will lead architecture, POC, integration, and delivery while guiding teams and ensuring secure, scalable outcomes.

You will collaborate with customers, project teams, vendors, and stakeholders, mentor junior engineers, and contribute to continuous improvement of technical standards and practices.