Delivery & Operation Engineer (DNS & Hardware SLB)

Yamu Technology (Hong Kong) Limited; Hong Kong; On-site; HKD 420,000 - 600,000; Full time

Job summary

Yamu Technology (Hong Kong) Limited is seeking an Delivery & Operation Engineer to provide on-site support for DNS and hardware SLB systems. You will handle incident response, root-cause analysis and documentation for production changes.

The role requires hands-on experience with hardware SLB appliances (F5, Sinfor, DPtech, Hongji), plus strong knowledge of Layer 4/7 load balancing and network architecture for financial institutions. Excellent communication with client IT teams is essential.

Qualifications

• Minimum 3 years end-to-end delivery and operation experience focusing on financial DNS and hardware SLB load balancing projects.
• Hands-on experience with physical hardware SLB appliances: F5, Sinfor, DPtech, Hongji.
• Familiar with financial IDC network architecture and logical zone segmentation design for banks, securities firms and insurance companies.
• Master GSLB principles, scheduling logic and real-world deployment scenarios; proficient in operation & configuration of mainstream hardware SLB appliances.
• In-depth knowledge of Layer 4 & Layer 7 load balancing mechanisms; solid theoretical & practical skills in routing, switching, firewall, and switch deployment & troubleshooting.
• Expertise in network protocol analysis, end-to-end traffic tracing and multi-dimensional production fault diagnosis.
• Capable of independently writing & maintaining standardized technical documents: operation manuals, configuration guides, fault handling SOP, cutover & rollback documents.
• Excellent verbal & written communication skills to coordinate with financial client IT teams.

Responsibilities

• Provide resident on-site technical support and daily maintenance for DNS & GSLB systems.
• Manage full incident workflow: rapid response to service tickets, fault localization & root cause analysis.
• Draft complete technical documentation for production changes, including risk assessment, implementation and rollback plans.
• Maintain professional on-site communication with client network, security and operation teams.

Skills

DNS & GSLB operations

Hardware SLB appliances

F5 hardware SLB

Networking (Layer 4/7)

Traffic analysis

Root cause analysis

Documentation writing

Client communication

On-site support

Tools

F5

Sinfor

DPtech

Hongji

Job description

Delivery & Operation Engineer (DNS & Hardware SLB)

Provide resident on-site technical support and daily maintenance for clients’ DNS & GSLB systems. Resolve all production incidents promptly to guarantee maximum system stability and business continuity for financial core services.

Manage full incident handling workflow: rapid response to service tickets, fast fault localization & root cause analysis; prepare and submit standardized monthly service reports to clients on schedule.

Independently draft complete technical documentation for all production changes, including risk assessment plan, implementation procedure and rollback recovery plan, complying with financial IT compliance standards.

Maintain rigorous work standards and professional ethics during on-site communication with client network, security and operation teams.

Mandatory Requirements

Experience Criteria

• Minimum 3 years end-to-end delivery & operation experience focusing on financial DNS and hardware SLB load balancing projects.
• Hands-on project delivery experience with physical hardware SLB appliances: F5, Sinfor, DPtech, Hongji. Experience with open-source load balancing software (Nginx, HAProxy) will NOT be recognized as valid hardware LB project experience.
• Familiar with financial IDC network architecture and logical zone segmentation design for banks, securities firms and insurance companies.
• Master GSLB principles, scheduling logic and real-world deployment scenarios; proficient in operation & configuration of mainstream hardware SLB appliances.
• In-depth knowledge of Layer 4 & Layer 7 load balancing mechanisms; solid theoretical & practical skills in routing, switching, firewall, router and switch deployment & troubleshooting.
• Expertise in network protocol analysis, end-to-end traffic tracing and multi-dimensional production fault diagnosis.
• Capable of independently writing & maintaining standardized technical documents: operation manuals, configuration guides, fault handling SOP, cutover & rollback documents.
• Excellent verbal & written communication skills to coordinate with financial client IT teams.