Hire the Best AWS Developers

If your AWS bill keeps climbing, production breaks under load, or a compliance deadline is getting close - the problem is rarely just AWS. It’s the architecture. I step into fragile systems and fix both: cloud infrastructure, and the application design running on it. Because even perfect AWS setup cannot save software that wasn’t designed to scale, isolate failures, or handle real production traffic. Most teams I work with are stuck in one of these situations: - AWS costs rising every month with no clear reason - Systems that pass tests but fail under real traffic - Compliance pressure from regulators or auditors - Constant firefighting instead of controlled releases Hiring more engineers or adding more monitoring increases complexity. I simplify the architecture - both infrastructure and code-level design - so the problems stop repeating. Recent outcomes: - Avoided a $5M federal penalty by delivering a critical federal platform before deadline, focusing only on what was required for compliant launch - Cut hosting costs from $96K to $14K per year by eliminating architectural waste across infrastructure and services - Designed and delivered a FedNow-ready, Federal Reserve-compliant real-time payments system scaling to 60,000 transactions per second using horizontally scaled services built specifically for cloud behavior What changes after I’m done: - Infrastructure and software designed to scale together - Predictable AWS costs - Systems that stay stable under load - Clear documentation and runbooks - A team that can operate it independently I build boring, predictable systems on purpose. Boring systems survive audits, scale events, and 3am incidents. If you’re dealing with cost pressure, reliability issues, or compliance risk, send me your biggest concern. I’ll tell you exactly what I would fix first and whether it’s worth doing. If it’s not a fit, I’ll say so.

I have 15+ years of experience architecting cloud solutions on AWS, building AI Agents and developing full-stack web applications, and distributed systems. ⭐⭐⭐⭐⭐ "Rehan is amazing and is certainly an expert in his field. If you need someone who is systemic and has a great eye for detail." Here's what you can expect from working with me: 🔹Consultative mindset geared towards helping client navigate complexity 🔹Clear communication ensuring seamless collaboration 🔹Efficient work ethic that focuses on automation and repeatability 🔹Pride in quality of the work that I deliver Key Highlighs: ✅ Established AWS cloud practice in a mid-sized IT MNC listed on NYSE & BSE/NSE ✅ Led a team of 700+ AWS Architect, Developers, DevOps, and SysOps experts. ✅ Delivered more than 300 projects in career ✅ AWS Certified Solutions Architect ✅ Published Author with books on Systems Design, and Web API development ✅ Regularly provide certification training at corporate level for AWS ✅ Over 200 ⭐ on GitHub repositories What can I help you with: ☁️ Application design and architecture: - Design scalable, resilient, and reliable systems architecture - Optimial bespoke solutions customised to your needs - Secure Network design ☁️ Cloud Infrastructure & DevOps - Secure network configuration (VPC, subnets, gateways, etc.) - Optimal EC2 server configuration - Database setup (RDBMS or NoSQL) - Load balancing, autoscaling, and more 💻 SaaS applications: - End to end SaaS deployment using AWS Services - Miroservices API & Compute using serverless stack using Lambda, Fargate, API Gateway - Or server-based solutions using EC2, Load Balancer - Authentication using Cognito - DNS and domain name configuration through Route53 - SSL configuration - Database using RDS / DynamoDB with appropriate data modelling / single table design - Combine services using SQS, SNS, Step Functions, etc. - Observability using CloudWatch 🖥️ Backend serverless apps - Lambda / API Gateway - ECS Fargate based container services 🤖 Bots and AI Agents - Agentic Bots in MS Teams, Web, Slack, etc. - Experience in OpenAI APIs - Local deployment of DeepSeek, Llama, Qwen, etc. My key expertise designing resilient systems using optimal building block. I have open source repositories on GitHub where I regularly publish extremely niche apps. Proficient in React, Astro, NextJS, NestJS, AWS, AWS Lambda, AWS EC2, S3, etc. I can provide links to code samples and apps that I have made Open Source on request.

I've cut AWS bills by 60%, maintained 99.9% uptime across 50-node EKS clusters, and shipped SOC2-compliant infrastructure for FinTech and SaaS companies - across 6+ years of hands-on cloud engineering. Whether you're a startup drowning in cloud costs, a SaaS company outgrowing your Kubernetes setup, or an enterprise navigating a SOC2 or GDPR audit - I've solved that exact problem, with numbers to back it. ▸ Kubernetes & EKS Architecture I design production-grade EKS clusters built to scale multi-AZ, auto-scaling with Karpenter, Spot Instance optimized, and GitOps-driven deployment pipelines. I've supported engineering teams of 10–50 engineers with infrastructure that doesn't create 2am incidents. ▸ FinOps & Cloud Cost Engineering I don't just trim costs I restructure how cloud spend works. Slashed cluster compute costs 60% via Karpenter + EC2 Spot strategy. Reduced CI/CD infrastructure costs 35% by migrating Jenkins pipelines to GitHub Actions. ▸ DevSecOps & Compliance Built GDPR and SOC2 Type II compliant infrastructure from scratch Zero-Trust IAM, AWS WAF, automated secrets rotation, CloudTrail audit logging, and compliance documentation. Experienced with HIPAA and PCI-DSS-ready architectures for FinTech clients. ▸ Observability & Reliability Full monitoring stacks with Prometheus, Thanos, Loki, and Grafana SLO dashboards, alerting runbooks, and incident response playbooks. I build for 99.9%+ uptime, not hope for it. Certified: AWS DevOps Engineer – Professional | AWS Solutions Architect – Associate | HashiCorp Terraform Associate (003) I work best with teams that want infrastructure they can trust clean IaC, documented runbooks, and systems built to last. Available for long-term platform engineering partnerships, DevOps retainers, and project-based engagements. Message me and we'll spend 15 minutes figuring out whether I'm the right fit for your infrastructure.

Get $100 AWS Credit + a complimentary, No-Strings-Attached AWS Cloud Assessment. ⭐⭐⭐⭐⭐ "Rarely have I worked with someone as skilled and thorough as Carlos is. Setting up my team on git, configuring our AWS servers to be safe, scalable, and fast, working with my developers to optimize code, being a good person". James Rector, UPWORK 100+ 5-star projects, I'm one of highest-rated and highest-earning AWS freelancer on UPWORK. I have been helping SaaS businesses to build scalable, secure, highly available and high-performing environments on AWS following DevOps/Dev Ops best practices. Here is what I can help you with: ✅ Review of your AWS current architecture performance, security and costs ✅ Architecture of new AWS infrastructure and Data Pipelines ✅ Migrations to AWS, AWS Cost Reduction, Database Optimisations, DevOps Engineer ✅ Managed Services SLA Problems that I solve: ⚡️ Performance At Scale: I build and deploy industry-tested and proven infrastructure code that ensures your application runs and performs fast without compromising security. ⚡️ Cost Optimisation: My infrastructure architecture enables the efficient use of resources and can help you save up to 90% in your AWS costs ⚡️ Security & Compliance: I can help you Scale and innovate quicker while building a solid foundation that will help you maintain a secure, compliant environment. ⚡️ Training & DevOps. I can help you increase your team's technology adoption while automating your DevOps/ Dev Ops processes. Technologies that I adopt and I'm an expert at: ➡️. AWS services such as s EC2, ECS, EKS (Kubernetes), S3, RDS, Step Functions, Lambda, AWS Gateway API, DynamoDB, Beanstalk, Elasticache, SNS, SES, IAM, ControlTower, WAF, Shield, Cloudformation, Cloudfront, CloudWatch, VPC, Route 53, Certificate Manager and others. ➡️. Supporting services such as CDK, Terraform, Rancher, ISTIO, Prometheus, Grafana, Teleport, Papertrail, Graylog, New Relic, Dynatrace, DataDog, Kafka, NEO4J and Spot.io. ➡️. Strong CI/CD DevOps engineering using GitHub/BitBucket Pipelines, CircleCI, ARGOCD. Industries: - FinTech - Media - Ecomm - and more! Here are some of the case studies of the clients I have helped with: 1. MONETRACK - Deploying a client stack in minutes on AWS instead of weeks Industry: Finance Problem: An unreliable process that caused constant frustration and delays. Process: Each deployment would take days to weeks to be set up, requiring between 5-6 people. Results: They now deploy a client stack in minutes instead of weeks using AWS EKS and a customised CI/CD process. In addition, I have: · Improved deployment time from weeks to minutes. · 80% reduction in costs per deployment. · Secure alignment with their client's compliance requirements. 2. Tourism Media - Great flexibility, deploying applications faster and secure on AWS Industry: Media Problem: With no CI/CD integration across all deploys, the job to integrate each stack was inconsistent and pruned to errors. Process: Deployment was not consistent across the board; they were also not resource-friendly Result: They can now push out a consistent deployment process across the company while being quickly adopted by their teams. In addition, I also have: · Improved deployment time by 60% · 70% costs reduction in EC2 instances · Greater scalability and reliability than their Legacy infrastructure. 3. Value-Ad - Scale 10X more on AWS with great stability and without the extra cost. Industry: Finance Problem: An infrastructure that could not scale securely and effectively was harming their client base. Solution: Deploy a new AWS EKS (Kubernetes) environment that is scalable, highly available, secure (PCI-DSS compliant) and cost optimised using AWS Well Architect Framework best practices. Result: They can now handle 10X more requests with excellent stability and without extra cost than their legacy infrastructure. In addition, I have added: · Greater scalability and reliability · Deployments are simplified and done in minutes instead of hours · 32% cheaper than its previous infrastructure Now a bit of myself: I'm a passionate professional with 25 years of experience in enabling business strategies through the practical application of technology architecture principles, practices, and tools. User-centric and solution-oriented, I have managed projects and teams across Australia, New Zealand, the USA, Brazil, the UK, Ukraine, Singapore, Vietnam and India over the past 14 years. A problem-solver in a broad range of technology stacks covering Architecture, Development, Integration, Data, Infrastructure, and Support. Seamless configuration and migration include fast deployment of critical and complex workloads on the cloud with hands-on expertise in AWS Services. Send me a message. I would love to discuss your project.

As an expert in guiding companies to the Cloud with comprehensive DevOps solutions, I rank in the top 1% of Upwork talent. With over 8 years of experience as a Cloud DevOps Engineer and nearly 12 years in IT, I bring extensive expertise in cloud infrastructure, automation, security, and the development of highly scalable, cost-effective, and highly available systems. I specialize in DevSecOps, leading teams through research and innovation to build secure, scalable solutions. Key Expertise: Infrastructure as Code (IaC): • Terraform • CloudFormation • Ansible • Packer Containerization & Orchestrations: • Docker • Kubernetes • AWS ECS (EC2 & Fargate) • AWS EKS • Docker Hub • AWS ECR Servers: • Amazon Linux • Ubuntu • CentOS • Redhat • Windows Servers DevOps: • Docker • Kubernetes • Terraform • Jenkins • CodePipeline • CodeBuild • Github • Bitbucket • Git • TFS and many more... Amazon Web Services: • EC2 • ECS • EKS • VPC • S3 • CloudFront • ALB • RDS • Elastic Beanstalk • Lambda and many more.... System & Network: • Amazon Linux/CentOS/Ubuntu/Redhat • Windows Servers • Active Directory • OpenVPN, IPSec • Workspaces • TCP/IP and many more... Web & Databases: • Apache, Nginx, IIS, Apache Tomcat • DynamoDB • DocumentDB • Aurora RDS (MySQL, SQL Server, PostgreSQL, MariaDB) • MongoDB (Atlas & Hosted) • Redshift Compliance & Governance • WAF • AWS Well Architectured Tool • CloudTrail • Config • Systems Manager • Control Tower • AWS Compute Optimizer Analytics Tools: • ElasticSearch • Athena • Kinesis • QuickSight • Logstash • New Relic • Kibana Scripting and Automation • Bash • Python

I help startups and SaaS teams run their applications reliably on AWS by taking full ownership of the cloud, deployment, and operational layer. Instead of hiring multiple specialists, you get one engineer responsible for making your system stable, scalable, secure, and cost-efficient in production. I design, build, deploy, and maintain AWS environments so your developers can focus on product features while the infrastructure runs smoothly. ═══════ What I can handle end-to-end ═══════ ➤ AWS infrastructure setup (VPC, networking, IAM, security, databases, compute) ➤ Scalable deployments using EC2, ECS, or serverless services ➤ CI/CD pipelines and automated release workflows ➤ Monitoring, logging, alerting, and incident stability ➤ Cost optimization and resource efficiency ➤ Backups, security hardening, and reliability best practices ➤ Targeted backend or automation fixes that require system-level understanding This covers the entire AWS and operations layer of a production system.