Senior Network Engineer (Singapore)

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation.

Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

Role Overview:

The Senior Network Engineer designs, builds, and operates secure, reliable, and scalable network services across global data centers, cloud platforms, and F5’s IP backbone, including regulated environments. This engineering-focused role owns network reliability, performance, automation, and complex incident resolution while delivering improvements to routing architectures and connectivity.

Working closely with Architecture, Product, Security, Compliance, Build, and Operations teams, the Senior Network Engineer drives initiatives from design through deployment, strengthens operational practices, and mentors engineers. Success requires deep technical expertise, sound operational judgment, and a commitment to “be kind” through respectful communication, open collaboration, and an inclusive team culture.

Sounds interesting? Read on!

What You’ll Do:

- Engineer, build, and operate network solutions supporting global data centers, cloud platforms, and product connectivity.
- Optimize global backbone routing and highly available Layer 3 architectures using BGP, OSPF, routing policies, redundancy, and traffic engineering.
- Implement secure segmentation, boundary controls, and traffic isolation to meet security and compliance requirements.
- Deliver hybrid and cloud-native connectivity across AWS, Azure, and GCP using dedicated interconnects, VPNs, transit gateways, and cloud routing services.
- Develop and maintain network automation using Python, Ansible/AWX, and Git-driven CI/CD workflows for provisioning, configuration, compliance, and validation.
- Own day-to-day network availability and performance through proactive monitoring, telemetry, capacity planning, configuration drift detection, and lifecycle management.
- Troubleshoot complex routing, switching, TCP/IP, and connectivity issues; lead or support major incidents in accordance with escalation and reporting procedures.
- Execute changes, upgrades, and migrations using documented methods of procedure (MOPs), approvals, pre- and post-change validation, and tested rollback plans.
- Partner with Security and Compliance teams to remediate vulnerabilities and maintain secure network software, firmware, and configurations.
- Build security controls and compliance checks into automated workflows, including least privilege, encryption, logging, evidence collection, and safe rollback.
- Validate network software, routing changes, automation, and security controls in controlled environments before production deployment.
- Translate product, platform, and regulatory requirements into actionable network designs and delivery plans with clear timelines and dependencies.
- Manage vendor escalations, procurement, RMA workflows, and equipment lifecycle; evaluate technologies for resilience, performance, automation, compliance suitability, and cost.
- Maintain accurate architecture and boundary diagrams, runbooks, troubleshooting guides, and control documentation to support operations, audits, and continuous monitoring.
- Mentor engineers through technical deep dives, structured troubleshooting, design reviews, and post-incident learning while fostering a kind, collaborative team environment.

What You Bring:

- A bachelor’s degree in Computer Science, Information Technology, or a related field.
- 10+ years of network engineering experience in large-scale, multi-region, and global routing environments.
- Deep hands-on expertise with BGP and OSPF, including route propagation, routing policy, traffic engineering, ECMP, route reflectors, and multi-vendor interoperability.
- Strong engineering and operational experience with JunOS; experience with Juniper MX, QFX, and SRX platforms preferred. Familiarity with EOS, NX-OS, or IOS-XE is a plus.
- Advanced knowledge of F5 BIG-IP architecture, iRules, LTM, DNS/GTM, SSL/TLS, WAF (ASM/AWAF), and highly available enterprise deployments.
- Strong troubleshooting skills across routing, switching, TCP/IP, asymmetric paths, latency, packet loss, MTU/fragmentation, and QoS, using logs, packet captures, and network diagnostic tools.
- Hands-on experience with hybrid and cloud-native networking in AWS, Azure, and/or GCP, including services such as Direct Connect, ExpressRoute, Transit Gateway, Virtual WAN, and cloud routers.
- Proficiency in Python, Ansible/AWX, configuration templating, Git workflows, and automated testing and validation pipelines.
- Strong understanding of network security controls, boundary protection, segmentation, encryption, and logging.
- Familiarity with firewalls, VPNs, DDoS mitigation, IDS/IPS, and NIST 800-53-based security frameworks.
- Strong incident leadership and cross-functional communication skills, with the ability to coordinate teams effectively under pressure.
- An analytical, structured approach to problem-solving and the ability to manage competing priorities in fast-paced, regulated environments.
- A commitment to mentoring others, continuously improving engineering practices, and demonstrating our expectation to “be kind.”

What You’ll Get:

- Hybrid working mode
- Career growth and development opportunities
- Recognitions and Rewards
- Employee Assistance Program
- Competitive pay, comprehensive benefits (https://www.f5.com/company/careers/benefits), and cool perks
- Culture of Giving Back (https://www.f5.com/company/global-good)
- Dynamic Diversity & Inclusion (https://www.f5.com/company/diversity-inclusion) Interest Groups

Apply if you believe your own unique capabilities can contribute to the success of this role and our organization!

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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 Opportunity

It 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 [email protected] .