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Principal Cloud Network Architect (Part-Time)

MiratechBuenos AiresNew
On-site Part-time

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Experience Level

Mid-Senior Level

Qualifications

 8+ years in IT infrastructure/architecture, with 5+ years of focus on AWS-native networking, multi-account transit architectures, and hybrid cloud convergence. Advanced AWS networking expertise, including AWS Cloud WAN, Transit Gateway, Direct Connect, VPC Lattice, Route 53, and cross-account governance (IAM / Resource Access Manager). Strong "Hybrid BGP Fluency" (AS-PATH, MED, Local Pref) to act as the cloud-side counterpart to core network engineers, seamlessly accepting route handoffs at AWS Direct Connect or Microsoft Meet-Me Room edges without creating routing loops. Deep expertise in AWS-native security perimeters (AWS WAF, Shield Advanced, GuardDuty, Security Hub) and enterprise identity federation. Proven track record designing cross-region AWS Disaster Recovery (DR) architectures and executing Cloud FinOps cost-optimization strategies. In-depth knowledge of Infrastructure as Code using Terraform and AWS CloudFormation for large-scale network and routing automation. Experience in M&A cloud consolidation, including unifying fragmented or “shadow IT” AWS environments into enterprise-grade governance models.

About the job

Join our team as a Principal Cloud Network Architect to lead a transformative network and infrastructure consolidation initiative following the acquisition of multiple telecommunications and UCaaS companies. Our current cloud environment is complex and dispersed, encompassing over 40 AWS accounts, isolated VPC architectures, and various legacy on-premises data centers.

This is a 6-8 month design engagement where you will be pivotal in establishing a definitive target-state hybrid cloud routing fabric. Your role will involve utilizing AWS Cloud WAN and Transit Gateway in conjunction with Digital Realty's interconnect capabilities while delivering production-ready blueprints to our core engineering team. You will work in close collaboration with the Lead Network Convergence Architect to ensure seamless integration of cloud edge routing with our global MPLS/BGP/SD-WAN core.

Key Responsibilities:

  • Architect the global cloud transit backbone by assessing and defining the target-state AWS multi-account routing model, including a final design decision between AWS Cloud WAN and regional Transit Gateway (TGW) architectures to unify over 40 AWS accounts.
  • Design the hybrid interconnect fabric spanning physical and cloud environments, ensuring Layer 2/Layer 3 connectivity between legacy data centers and AWS using Digital Realty (PlatformDIGITAL / ServiceFabric) and AWS Direct Connect.
  • Establish a cloud-native security perimeter and identity access management by engineering AWS WAF, AWS Shield Advanced, and centralized logging, while transitioning raw credential management to AWS KMS/Secrets Manager and integrating AWS IAM with Entra ID for SSO.
  • Standardize cloud routing boundaries for e-commerce and voice workloads, specifically by architecting a split-routing model: securely directing SIP signaling through AWS while maintaining real-time RTP media on physical hardware to mitigate cloud latency and

About Miratech

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a global leader, and create technology that helps our clients further enhance their business. We are a values-driven organization and our culture of Relentless Performance has enabled over 99% of Miratech's engagements to succeed by meeting or exceeding our scope, schedule, and/or budget objectives since our inception in 1989.  Miratech has coverage across 5 continents and operates in over 25 countries around the world. Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.

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