Network & Cloud Infrastructure Engineer

We are looking for an experienced Senior Network & Cloud Infrastructure Engineer to join our team and serve as a trusted technical advisor for our enterprise customers. You will design, implement, and manage complex hybrid and cloud-native network environments while working directly with customers to ensure resilient, secure, and high-performing infrastructure. This is a highly collaborative, customer-facing role that requires deep technical expertise combined with the ability to communicate clearly across technical and non-technical audiences., * Design, deploy, and administer enterprise-grade network infrastructure including routing, switching, firewalls, and SD-WAN solutions across on-premises and hybrid environments.

• Architect and implement High Availability (HA) and Disaster Recovery (DR) solutions ensuring business continuity and meeting agreed SLA targets.
• Manage and optimize cloud networking components within Azure, AWS, or GCP - including VNets/VPCs, subnets, peering, VPN gateways, ExpressRoute/Direct Connect, load balancers, and security groups.
• Configure and manage Network Security Groups (NSGs), firewall policies, and access control lists to enforce network segmentation and zero-trust principles.
• Oversee DNS architecture, management, and troubleshooting across internal and public-facing zones, including hybrid DNS resolution strategies.
• Deploy and manage load balancing solutions (L4/L7) including Application Gateways, Azure Front Door, AWS ALB/NLB, or equivalent, ensuring optimised traffic distribution and failover.
• Act as a primary technical point of contact for customers, conducting requirement workshops, presenting infrastructure proposals, and providing ongoing advisory support.
• Collaborate cross-functionally with globally distributed teams to deliver infrastructure projects on time, contributing as an effective virtual team member across time zones.
• Develop and maintain technical documentation including network diagrams, runbooks, and operational procedures in English and Spanish.
• Proactively identify risks, lead root cause analysis for incidents, and drive continuous improvement initiatives to enhance infrastructure reliability and performance.

• 6-8+ years of network administration experience in enterprise environments, with hands-on ownership of production infrastructure.
• Deep expertise in at least one hyperscaler platform (Azure, AWS, or GCP), including cloud-native networking services, identity and access, and infrastructure-as-code tooling.
• Proven experience designing and managing customer network infrastructure, HA/DR topologies, connectivity solutions, load balancers, NSGs, and DNS across hybrid or multi-cloud environments.
• Solid understanding of core networking protocols: BGP, OSPF, TCP/IP, VLAN, MPLS, IPSec, and SSL/TLS.
• Demonstrated customer-facing experience - capable of translating complex technical concepts for diverse audiences and building trusted relationships with stakeholders at all levels.
• Strong written and verbal communication skills in both English and Spanish, with the ability to produce professional documentation and lead customer conversations in both languages.
• Proven ability to work independently and collaboratively as part of a dynamic, geographically dispersed virtual team, managing priorities effectively with minimal supervision., * Relevant certifications such as CCNP/CCIE, AZ-700 (Azure Network Engineer), AWS Advanced Networking Specialty, or equivalent GCP Professional Network Engineer certification.
• Experience with infrastructure-as-code tools such as Terraform, Bicep, or CloudFormation for network resource provisioning.
• Familiarity with network monitoring and observability tools (e.g., Azure Network Watcher, AWS CloudWatch, Datadog, ThousandEyes).
• Exposure to SD-WAN, SASE, or Zero Trust Network Access (ZTNA) architectures.
• Experience in managed services or consultancy environments delivering infrastructure solutions to external enterprise customers.
• Scripting or automation skills using Python, PowerShell, or Bash for network operations tasks.

We are HCLTech, one of the fastest-growing large tech companies in the world and home to 225,000+ people across 60 countries, supercharging progress through industry-leading capabilities centered around Digital, Engineering and Cloud. The driving force behind that work, our people, are diverse, creative, and passionate, raising the bar for excellence on a regular basis. Why Us? * We offer End-to-end digital transformation expertise that helps clients from strategy through execution. * We work with the biggest brands, offering the opportunity to be a part of industry-leading work. * We are invested in your growth, offering learning and career development opportunities at every level to help you find your spark. * We offer freedom and flexibility on the job, empowering our employees to make decisions. * We offer a virtual-first work environment, promoting a good work-life balance and real flexibility. * Our company is extremely diverse with representation of 165 nationalities. * We offer the opportunity to work with colleagues across the globe. If you have a valid disability certificate, Certificate of Disability in Force, please contact us. Among HCLs principles we would like to highlight diversity and inclusion as a strength in our values and practices. To achieve all our objectives, it intends to attract, develop, and retain different profiles, assuming diversity as a key factor and differentiator of fundamental innovation in our organization. We welcome and value all people, and we are committed to the inclusion and sense of belonging of each person who is part of HCL.