Infrastructure Architect - AWSPitisci & Associates • Atlanta, Georgia, United States

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Infrastructure Architect - AWS

Pitisci & Associates

Atlanta, Georgia, United States

Atlanta, Georgia, United States

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INFRASTRUCTURE ARCHITECT - AWS DIRECT HIRE ATLANTA, GA (Hybrid) USC/GC - NO SPONSORSHIP PROVIDED Job Summary The Infrastructure Architect will lead the strategic design and implementation of enterprise-grade cloud infrastructure solutions on AWS. This senior role architects scalable, secure, and highly available infrastructure supporting multi-tenant SaaS applications, comprehensive monitoring systems, and mission-critical operations. The position requires deep AWS expertise, multi-tenant architecture proficiency, and ability to integrate AWS Marketplace and third-party solutions while delivering robust, cost-effective infrastructure at scale. Essential Duties and Responsibilities Define infrastructure architecture strategy and roadmap aligned with business objectives Design scalable, secure AWS infrastructure following Well-Architected Framework and SaaS Lens principles Architect multi-tenant SaaS infrastructure with tenant isolation, resource segregation, and automated provisioning Develop production-grade Infrastructure as Code using Terraform, AWS CDK, and CloudFormation Create reusable, modular infrastructure components and tenant-aware templates Design CI/CD pipelines using GitLab CI/CD for infrastructure deployment with automated testing and security scanning Implement deployment strategies (blue-green, canary, rolling) for infrastructure and containerized workloads (ECS/EKS) Design enterprise monitoring and observability using Nagios, CloudWatch, Prometheus, and Grafana Establish tenant-aware monitoring with APM, distributed tracing (X-Ray), log aggregation, and intelligent alerting Architect solutions leveraging AWS Marketplace products for monitoring, security, and infrastructure management Establish secure integration patterns with third-party SaaS platforms (OAuth, SAML, API gateways) Design tenant isolation strategies across compute, storage, network, and database layers Implement metering, usage tracking, and cost allocation systems for multi-tenant environments Establish tenant tiering (free/standard/premium) with resource quotas, SLAs, and performance isolation Establish infrastructure standards, governance frameworks, and policy-as-code (Config, SCPs, OPA) Design disaster recovery, backup strategies, and business continuity procedures Design multi-account strategies using AWS Organizations, Control Tower, and Landing Zone Lead technical architecture reviews and recommend optimal AWS infrastructure solutions Mentor engineering teams on AWS best practices, infrastructure patterns, and DevOps practices • Lead incident response, post-mortems, and continuous improvement initiatives Document architectural decisions, infrastructure designs, and operational procedures • Work effectively across global teams and different time zones QUALIFICATIONS AND BACKGROUND Education Required: Bachelor's degree in Computer Science or Information Systems Preferred: Master's degree in Computer Science or Information Systems Certifications Required: AWS Certified DevOps Engineer Professional Experience Required: 10+ years in infrastructure architecture and cloud engineering • Extensive hands-on AWS infrastructure expertise across core services Deep expertise with Terraform, AWS CDK, and CloudFormation Templates (CFT) Proven track record architecting production-grade AWS infrastructure for enterprise environments Expert-level infrastructure CI/CD pipeline design using GitLab CI/CD Strong proficiency in SaaS infrastructure and multi-tenant design principles Experience architecting large-scale infrastructure for multi-tenant SaaS platforms Proven success integrating AWS Marketplace products and third-party SaaS platforms Experience with enterprise monitoring and observability platforms including Nagios Preferred: Experience building/operating SaaS infrastructure at scale Multi-cloud experience (Azure, GCP) AWS SaaS Factory program participation AWS Marketplace seller/ISV experience Advanced FinOps and infrastructure cost optimization expertise Skills: AWS Cloud Infrastructure (Expert Level): Compute: EC2, ECS/Fargate, EKS, Lambda, Auto Scaling, Batch Storage: S3, EBS, EFS, FSx, Storage Gateway, Backup Database: RDS, Aurora, DynamoDB, Redshift, ElastiCache, DocumentDB Networking: VPC, Route 53, CloudFront, API Gateway, Direct Connect, Transit Gateway, PrivateLink VPN Security: IAM, KMS, Secrets Manager, Cognito, GuardDuty, Security Hub, WAF, Shield, Macie Management: CloudWatch, CloudTrail, Systems Manager, Config, Control Tower, Organizations, Service Catalog Infrastructure as Code Terraform (advanced modules, state management, workspaces, complex architectures) AWS CDK (TypeScript/Python with constructs, patterns, custom resources) CloudFormation (nested stacks, StackSets, custom resources, drift detection) Policy-as-code (AWS Config Rules, Service Control Policies, OPA) Git version control with GitFlow and trunk-based development SaaS Encryption (KMS, at-rest, in-transit), secrets management, data masking; Zero-trust architectures and least privilege principles Compliance frameworks (HIPAA, PCI-DSS, SOC 2, GDPR, ISO 27001) Security scanning, vulnerability management, AWS Security Hub Network security (security groups, NACLs, WAF, Shield) Infrastructure Optimization: Cost optimization (Cost Explorer, Trusted Advisor, Compute Optimizer, Savings Plans, RI, Spot); Performance tuning and capacity planning; High availability and fault tolerance design; Disaster recovery and backup strategies (AWS Backup, cross-region replication); Multi-region and multi-account architectures Development Git workflows and version control; REST APIs, GraphQL integration; AWS CLI and SDKs (boto3); Configuration management (Ansible, Chef, Puppet - preferred) Competencies Strategic Data-driven with ability to evaluate infrastructure trade-offs ; Detail-oriented with focus on reliability, scalability, and security; Drive to uncover root causes and implement solutions Passion for building scalable, reliable infrastructure Business Customer-centric mindset for multi-tenant infrastructure; Balance technical decisions with business value and cost; Experience with FinOps and infrastructure cost optimization

Atlanta, Georgia, United States

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