We're looking for a
Senior Cloud Infrastructure Engineer who is strong in
enterprise networking and passionate about
cloud migration and AWS. This is a hands-on senior role where you'll help lead the evolution of our
hybrid on-prem + AWS infrastructure, supporting critical healthcare systems in a
HIPAA-regulated environment. If you enjoy owning infrastructure design, solving complex network challenges, and modernizing platforms in the cloud - this role is for you.
What You'll Work On
Cloud & AWS (Core Focus)
- Design, deploy,and operate AWS infrastructure with an emphasis on networking,security, and reliability
- Lead andsupport application and infrastructure migrations fromon-prem to AWS (lift-and-shift, re-platforming, hybrid)
- Architect andmanage AWS networking:
- VPCs, subnets,routing
- SecurityGroups, NACLs
- Site-to-siteVPN, client VPN, Direct Connect (as applicable)
- Ensure AWSenvironments meet HIPAA, security, availability, and DRrequirements
- Partner withapplication and platform teams on cloud modernization
- SupportInfrastructure as Code (Terraform / CloudFormation experience preferred)
Enterprise Networking
- Design,implement, and support enterprise network infrastructure:
- Layer 2 /Layer 3 switching and routing
- Firewalls,VPNs, wireless, WAN
- Own networksecurity posture using industry best practices
- Troubleshootcomplex connectivity and performance issues across on-prem and cloud
- Optimizenetwork performance for:
- VoIP andcollaboration tools
- Real-time andlatency-sensitive applications
- Multi-site andSD-WAN environments
- Lead networkupgrades, enhancements, and capacity planning
Reliability, Operations & Automation
- Maintain highavailability, performance, and security across hybrid infrastructure
- Managepatching, upgrades, backups, and restores
- Participate indisaster recovery planning and testing
- Improveautomation and repeatability of infrastructure deployments
- Participate ina rotating on-call schedule
- Act as anescalation point during major incidents
Leadership & Collaboration
- Mentor andguide junior engineers
- Lead root causeanalysis and drive long-term fixes
- Collaboratewith Systems, Database, Security, and Application teams
- Create and maintain clear technical documentation and runbook
Requirements
Experience
- 5+ years inenterprise network or infrastructure engineering roles
- 3+ yearshands-on experience with AWS in production environments
- Provenexperience supporting hybrid on-prem + cloud architectures
- Experience inenvironments with:
- Multiple datacenters
- 20+ sites
- 1,000+endpoints
- Experience withSD-WAN technologies
- Strongbackground in disaster recovery and business continuity
Technical Skills
- Strong Layer 3networking fundamentals (TCP/IP, routing, firewalls, VPNs)
- Hands-onexperience with Palo Alto firewalls
- Ciscoenterprise networking experience (routing, switching, collaboration)
- Solidunderstanding of DNS, TLS/SSL, HTTP/S, and identity-related protocols
- VMwarevirtualization experience
- Experience inhealthcare or other regulated environments (HIPAA preferred)
- Epic orhealthcare platform experience is a plus
Nice to Have
- AWS CertifiedSolutions Architect (Associate or Professional)
- CCNP orequivalent networking certification
- Cantonese orMandarin language skills