About the Role Ready to shape the future of connectivity in Singapore? Join our dynamic, forward-thinking team at the heart of telecom innovation. As a Senior Systems Engineer, you will lead end-to-end project delivery for resilient 5G/edge solutions serving tier-1 clients and key public sector partners. This role is about more than maintenance; it's about driving DevSecOps excellence, integrating emerging AI capabilities, and ensuring zero-downtime operations for mission-critical systems. You'll also have the opportunity to mentor junior engineers and champion sustainable technology practices in a collaborative, hybrid-work environment. We offer a competitive salary and invest in your future with SkillsFuture sponsorship. 🚀 What You'll Be Doing (Core Impact & Responsibilities) Your expertise will be the cornerstone of our operations, spanning system architecture, security, automation, and operational excellence: Spearhead the design, implementation, and commissioning of turnkey telecom/IT solutions using cutting-edge platforms (e.g., VMware, Red Hat, AWS EKS). This includes hands-on hardware integration (Cisco/Fortigate) and generating high-quality documentation (HLD/LLD, MoPs, UAT/SAT). Build and maintain robust CI/CD pipelines (Jenkins/GitHub Actions) leveraging Infrastructure-as-Code (Terraform). Enforce DevSecOps best practices across Kubernetes and orchestration platforms, automating workflows to ensure scalability for edge and IoT systems. Be part of our rotational 24/7 support structure, providing expert-level troubleshooting for complex network and firewall issues. Protect our systems by conducting VAPT (Vulnerability Assessment and Penetration Testing), remediating per OWASP/IMDA standards, and integrating AI for proactive, predictive threat detection. Optimise Application Performance: Tune and manage critical application servers (Tomcat/WebLogic), including JVM optimisation and RESTful API integrations. You'll also be optimising SIP/RTP signaling on Sess