Senior Network Engineer

F5 NETWORKS SINGAPORE PTE LTD; Singapore; On-site; SGD 140,000 - 190,000; Full time

Job summary

F5 NETWORKS SINGAPORE PTE LTD is seeking a Senior Network Engineer to own day-to-day reliability, performance, and incident response across multi-region and FedRAMP environments. You will evolve routing architectures, build automation, and mentor engineers.

You will collaborate with Architecture, Product, Security, Compliance, and Operations to ensure secure, resilient, and well-documented networks globally. This role emphasizes end-to-end ownership and impactful problem solving.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field (Master’s preferred).
• 10+ years in network engineering with large-scale, multi-region experience.
• Experience engineering or supporting FedRAMP Moderate/High environments preferred.
• Deep hands-on BGP/OSPF in global IP backbones with traffic engineering.
• Proficiency with JunOS and other network OS platforms; EOS/NX-OS/IOS-XE a plus.
• Automation skills with Python, Ansible/AWX, Git workflows; automated testing/validation.

Responsibilities

• Engineer, build, operate and deliver network solutions for global data centers, cloud platforms, FedRAMP environments.
• Engineer and optimize routing for a global IP backbone, including multi-region route propagation and traffic engineering.
• Design and implement scalable, highly available L3 topologies using BGP/OSPF and routing policy.
• Implement secure network segmentation for FedRAMP environments.
• Develop and maintain automated provisioning and configuration pipelines with FedRAMP baselines.
• Lead incident response and ensure audit readiness across FedRAMP contexts.

Skills

BGP & OSPF expertise

Network troubleshooting

Automation

Cross-functional collaboration

Incident response

Education

Bachelor’s degree in Computer Science/IT

Master’s degree preferred

Tools

JunOS (MX/QFX/SRX)

EVPN/VRF/Routing

Ansible/AWX

Python scripting

Git workflows

Job description

We are seeking a Senior Network Engineer who brings deep technical expertise, sound operational judgment, and the ability to deliver reliable, scalable network services across multi-region and global environments, including regulated and compliant FedRAMP-authorized platforms.

This role is primarily operations‑focused, encompassing ownership of day‑to‑day network reliability, performance, and incident response, while also incorporating engineering and build responsibilities as required - such as evolving routing architectures, developing and maintaining automation pipelines, troubleshooting complex network behaviors, and executing major initiatives across data centers and cloud platforms.

You will work closely with Architecture, Product, Security, Compliance, and Operations teams to ensure our global backbone, data center networks, cloud connectivity, and FedRAMP environments remain secure, resilient, automated, compliant, and well-documented. You will be empowered to own meaningful problems end‑to‑end, influence design patterns, and mentor engineers across the organization.
Key Responsibilities

Network Design & Implementation:

• Engineer, build, operate, and deliver network solutions for global data centers, cloud platforms, FedRAMP-authorized environments, build environments, and product connectivity needs.
• Engineer and optimize routing for a global IP backbone, including multi‑region route propagation, redundancy, and traffic‑engineering strategies.
• Engineer, build, and operate scalable, highly available L3 topologies using BGP, OSPF, and robust routing policy (communities, AS‑path manipulation, MED/local‑pref tuning, ECMP, route‑reflector hierarchy).
• Design and implement secure network segmentation, boundary controls, and traffic isolation required for FedRAMP Moderate/High environments.
• Implement hybrid and cloud‑native routing across AWS/Azure/GCP using Direct Connect, ExpressRoute, VPN, Transit Gateway, Virtual WAN, and cloud router constructs - ensuring alignment with FedRAMP architectures and security control requirements.
• Develop and maintain automated provisioning, configuration, compliance, and validation pipelines using Python, Ansible/AWX, and Git‑driven CI/CD workflows, including FedRAMP configuration baselines.

Network Operations & Reliability

• Ensure connectivity, availability, and performance across multi‑region data centers, backbone sites, cloud platforms, and regulated FedRAMP environments using proactive monitoring, telemetry, and lifecycle management practices.
• Operate networks in accordance with FedRAMP continuous monitoring requirements, including configuration drift detection, vulnerability mitigation, and audit readiness.
• Troubleshoot complex routing, TCP, and connectivity issues using tools such as netcat, ping/ICMP, logs, and packet captures.
• Lead or support major incident response when needed, including FedRAMP‑relevant incident handling, escalation, and reporting procedures.
• Execute changes, upgrades, and migrations safely using structured procedures (MOPs), documented approvals, automated workflows, and validated rollback mechanisms.
• Remediate vulnerabilities and maintain compliance across network OS versions, configurations, firmware, and security posture in coordination with Security and Compliance teams.

Engineering, Build & Automation

• Engineer enhancements, new capabilities, and service‑driven connectivity features supporting product, platform evolution, and FedRAMP boundary services.
• Design automation that enforces least privilege, segmentation,encryption‑in‑transit,logging, and configuration compliance for regulated environments.
• Replace manual operational steps with automated workflows incorporating pre/post‑checks, compliance gates, evidence collection, and safe‑rollback logic.
• Test new network OS versions, automation logic, routing changes, and security controls in controlled environments prior to production and FedRAMP deployment.
• Partner with Build, Engineering, Architecture, Product, Security, and Compliance teams to ensure reliability, scalability, and alignment with FedRAMP control objectives.

Execution, Planning & Vendor Management

• Translate product, regulatory, and platform requirements into network designs that meet FedRAMP architectural and security expectations with clear timelines and dependencies.
• Conduct capacity planning across links, devices, cloud gateways, backbone segments, routing domains, and FedRAMP boundary components.
• Manage procurement cycles, RMA workflows, vendor escalations, and equipment lifecycle, ensuring vendors and solutions support FedRAMP use cases.
• Evaluate vendor technologies for performance, resiliency, automation compatibility, FedRAMP eligibility, and cost‑effectiveness.

Documentation & Knowledge Management

• Create and maintain high‑quality runbooks, architectural diagrams, and troubleshooting guides, including FedRAMP boundary diagrams and network control documentation.
• Maintain accurate documentation required for FedRAMP audits, assessments, and continuous monitoring activities.
• Define lifecycle standards for network roles, routing constructs, appliances, and platform components.
• Ensure monitoring, alerting, and operational procedures are documented, auditable, and continuously improved.
• Mentor engineers through structured troubleshooting, technical deep dives, FedRAMP design considerations, and post‑incident learning sessions.

Requirements:

• Bachelor’s degree in Computer Science, Information Technology, or related field (Master’s preferred).
• 10+ years in network engineering with experience in large‑scale, multi‑region, and global routing environments.
• Experience engineering, operating, or supporting FedRAMP Moderate and/or High environments is strongly preferred.
• Deep hands‑on expertise with BGP and OSPF in global IP backbone environments, including traffic engineering and multi‑vendor interoperability.
• Strong operational and engineering experience with JunOS (MX, QFX, SRX preferred).
• Proficiency with additional network OS platforms (e.g., EOS, NX‑OS, IOS‑XE) is a plus.
• Strong troubleshooting across routing, switching, TCP/IP, asymmetric paths, latency, packet loss, MTU/fragmentation, and QoS behaviors.
• Experienced with hybrid cloud and cloud‑native networking across AWS, Azure, and/or GCP.
• Hands‑on automation skills using Python, Ansible/AWX, configuration templating, Git workflows, and automated testing/validation pipelines.
• Strong understanding of network security controls, boundary protection, encryption, logging, and segmentation concepts required for FedRAMP.
• Familiarity with firewalls, VPNs, DDoS mitigation, IDS/IPS, and NIST 800-53‑based security frameworks

The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all‑inclusive, and responsibilities and requirements are subject to change.Please note that F5 only contacts candidates through F5 email address (ending with @f5.com) or auto email notification from Workday (ending with f5.com or @myworkday.com).Equal Employment OpportunityIt is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination. F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. Request by contacting [e-mail].