🚀 I build production-ready SaaS platforms, custom marketplaces, automation systems and cloud-deployed web applications — with a focus on booking, payment, subscription, CRM, admin dashboard and operational workflows. With 10+ years of full-stack software engineering experience, I help startups and businesses build new products, extend existing platforms, complete complex MVPs and solve production-critical issues using Ruby on Rails, Node.js, React/Next.js, Stripe, GoHighLevel and DevOps across Alibaba Cloud, AWS and Google Cloud Platform (GCP). WHAT I CAN HELP YOU WITH • SaaS platforms, startup MVPs and custom web applications • Marketplace, booking, scheduling and multi-role user workflows • Stripe payments, subscriptions, refunds, platform fees and credit systems • CRM systems, admin dashboards, messaging and third-party API integrations • GoHighLevel / LeadConnector Voice AI and lead automation workflows • Ruby on Rails, Node.js, React, Next.js and Angular application development • Replit and Lovable MVP debugging, completion and production readiness • DevOps, Docker, Kubernetes, CI/CD and cloud deployment on Alibaba Cloud, AWS and Google Cloud Platform (GCP) CUSTOM SAAS & MARKETPLACE DEVELOPMENT I recently worked on a heavily customized coaching marketplace built on top of Sharetribe. While Sharetribe provided the base platform, most of my work involved custom product engineering, including: • Booking, cancellation, scheduling and multi-role workflows • Stripe payments, refunds, subscriptions, fees, credits and checkout logic • Messaging and inbox improvements, reviews, revenue reporting and admin controls • Calendar and timezone fixes, booking identification, support features and production debugging This experience is relevant to SaaS products and marketplaces involving customers, service providers, transactions, subscriptions and operational workflows. GOHIGHLEVEL, VOICE AI & CRM AUTOMATION I also work with GoHighLevel (GHL) and LeadConnector Voice AI. In an insurance-focused AI agent project, I have been implementing and testing: • Inbound and outbound call workflows, AI agent routing and qualification logic • Lead capture, CRM/contact-field automation and appointment workflows • Transcript, recording and workflow troubleshooting DEVOPS, CLOUD ARCHITECTURE & PRODUCTION DELIVERY My portfolio includes architecture diagrams and project work involving Alibaba Cloud, Amazon Web Services (AWS) and Google Cloud Platform (GCP). My DevOps experience includes: • Alibaba Cloud ACK/Kubernetes environments, ingress, networking and managed infrastructure • AWS and GCP architecture and deployment planning for scalable web applications • Docker, Kubernetes, CI/CD, SSL/domain configuration and production deployments • PostgreSQL, MongoDB, Redis and Elasticsearch/Kibana environment support • Production troubleshooting, performance improvements and release support CORE STACK Ruby on Rails | Node.js | Express | NestJS | React.js | Next.js | Angular | PostgreSQL | MySQL | MongoDB | REST APIs | GraphQL | Stripe | Sharetribe | GoHighLevel | Alibaba Cloud | AWS | GCP | Docker | Kubernetes | CI/CD I can join an existing product, understand its business workflows, diagnose difficult application or infrastructure issues and deliver stable, production-ready improvements. Building a SaaS platform, marketplace, booking system, AI automation workflow or cloud-deployed application? Let’s discuss how I can help.

Senior DevOps Engineer with over 20 years of professional experience spanning the evolution of web and cloud architecture. I bridge the gap between software development and IT operations by building secure, highly scalable, and automated infrastructure. While my deep background as a Full-Stack Developer enables me to perfectly understand application architecture and write maintainable code for enterprise projects, my core focus is on cloud-native solutions, Infrastructure as Code (IaC), and advanced container orchestration. I specialize in designing seamless CI/CD workflows, securing cloud environments, and continuously optimizing server performance to reduce delivery times and operational costs. DevOps & Cloud Expertise: - Cloud Platforms: AWS (EC2, Lambda, S3, RDS, KMS, Route 53, CloudFormation), Microsoft Azure - Containers & Orchestration: Kubernetes (including K3S and Helm configurations), Docker - CI/CD & Automation: GitLab CI/CD, Jenkins, GitHub Actions, Bitbucket Pipelines, AWS CodePipeline, Ansible, Infrastructure as Code (IaC) - System Administration: Expert Linux server management, QEMU/virtualization, server hardening, shell scripting (Bash, Python) - Security & Monitoring: AWS Key Management Service (KMS) for secure data/tokenization, CloudWatch, CloudTrail, strict access controls - Performance & Cost: Cloud cost compression (AWS/Azure), database indexing, caching strategies, uptime monitoring Development Stack (Cross-Functional Advantage): - Back End: Node.js, PHP (Laravel, CodeIgniter, Zend), Python - Front End: React.js, Next.js, JavaScript, TypeScript, Tailwind, Material UI - Databases: PostgreSQL, MySQL, MongoDB, Amazon Aurora, SQL Server - APIs & Architecture: RESTful, GraphQL, third-party, and decentralized application integrations

I am a Software Engineer with 15 years of experience in application development and infrastructure. Over the years, I have worked across a wide range of technologies, designing and implementing high-performance solutions in both cloud and on-premise environments. My expertise lies in AWS, where I have developed, deployed, and optimized cloud-based applications. I am comfortable navigating between development and DevOps, ensuring seamless integration between software and infrastructure. In addition, I have solid experience with Go and Java, leveraging them for cloud-native applications and high-efficiency systems.

Here’s a clean, Upwork-ready rewrite you can paste into your profile. I kept it human, specific, and keyword-rich for search—while showcasing your 14+ years across cloud, DevOps, and automation. ✅ Cloud Architect & DevOps Engineer | AWS • GCP • Azure | Kubernetes • Terraform • CI/CD • DevSecOps I help companies design, secure, and automate cloud platforms that scale—from zero to production and beyond. With 14+ years across cloud engineering, DevOps architecture, and infrastructure automation, I’ve built end-to-end systems that start from a blank account and evolve into resilient, compliant, cost-efficient production environments. I work hands-on across AWS, GCP, and Azure; design robust networking (VPC/VNet, peering, VPN, Direct Connect/Interconnect, Transit); and automate everything with Terraform/Pulumi and modern CI/CD. Security and observability are baked in from day one. What I do Greenfield to Production: Ground-up cloud architecture, IaC, GitOps, and day-2 operations. Secure by Design: Network segmentation, least-privilege IAM, secrets, policy as code, and DevSecOps pipelines. Kubernetes at Scale: EKS/GKE/AKS design, cluster add-ons, multi-cluster/multi-region, HPA/VPA, autoscaling. High Throughput Systems: Architecting for millions of requests/second with caching, queues, and horizontal scale. Cost & Reliability: Right-sizing, spot strategy, autoscaling, SLOs, and disaster recovery runbooks. Recent impact (high level) Designed multi-region Kubernetes + GitOps platform to support spiky workloads with safe blue/green rollouts. Implemented full DevSecOps pipeline (SAST/DAST/Secrets/Dependency scanning) with policy gates and audit trails. Delivered VPC/VNet designs with private service access, egress controls, and zero-trust access patterns. Services Cloud Infrastructure ✔ Multi-cluster, multi-region VPC/VNet architectures with zonal resilience ✔ Security group / firewall / route audits ✔ Subnetting, routing, NAT/egress, private endpoints, WAF, IDS/IPS integration ✔ Connectivity: Direct Connect / Interconnect / ExpressRoute, IPSec VPN, Transit topologies, VPC peering ✔ AWS services: EKS, EC2, Lambda, RDS, Aurora, S3, CloudFront, ALB/NLB, Systems Manager, IAM DevOps & Automation ✔ Terraform (modules, workspaces, Terragrunt), Pulumi ✔ CloudFormation where required ✔ CI/CD: GitHub Actions, GitLab CI, Azure DevOps, Jenkins, CircleCI, TravisCI ✔ GitOps with Argo CD / Flux, progressive delivery (blue/green, canary) ✔ DevSecOps: SAST/DAST/Secrets/Dependency scanning, SBOMs, policy as code (OPA/Conftest), image signing Kubernetes & Containers ✔ Managed K8s: EKS / GKE / AKS, plus K3s for edge/lab ✔ Helm chart authoring & lifecycle, Kustomize overlays, ApplicationSets ✔ Dockerization of .NET, Java, PHP, Go, Python apps; multi-stage builds; security baselines ✔ Observability: Prometheus/Grafana, logging, tracing; alerts tied to SLOs ✔ Autoscaling: HPA/VPA/Cluster Autoscaler; spot/priority classes; node pools & taints/tolerations How I work Architecture first, automation always: Clear diagrams, ADRs, and repeatable IaC. Security & compliance built-in: Least-privilege IAM, encryption, image/signature policies, supply-chain controls. Operability: Dashboards, alerting, runbooks, and DR/backup strategies you can actually use. Transparent delivery: Milestone plans, PR-driven changes, and documentation for easy handover. Tech stack (abridged) Cloud: AWS, GCP, Azure IaC: Terraform, Terragrunt, Pulumi, CloudFormation CI/CD: GitHub Actions, GitLab, Azure DevOps, Jenkins, CircleCI, TravisCI Kubernetes: EKS, GKE, AKS, K3s • Helm, Kustomize, Argo CD/Flux • Ingress/WAF/Cert-Manager Security: IAM, KMS/Envelope, OPA/Conftest, SAST/DAST, image signing, SBOMs Data & Runtime: RDS/Aurora, S3/GCS/Blob, Redis, MQ, Lambda/Functions, container registries Observability: Prometheus, Grafana, Loki/ELK, OpenTelemetry Engagement options Architecture & Implementation: Design → IaC → CI/CD → secure rollout. Platform Hardening:Security review, IAM/VPC hardening, cost/risk reduction. Kubernetes Enablement:Cluster build-out, add-ons, GitOps, SRE baselines. Migrations: Lift-and-shift with refactoring for scale, reliability, and cost. Let’s talk If you need a secure, automated cloud foundation—or want to level up what you already have—send a message with your goals and timelines. I’ll propose a practical plan with clear milestones and outcomes.

🧑🏻‍💻 Expert in ECS Fargate, EC2, Elastic Beanstalk, VPC Networking, AWS Serverless. 🎖️Certified AWS SysOps Admin 🎖️Certified Terraform Cloud Engineer Tools & Technologies: • AWS (ECS Fargate, EC2, Elastic Beanstalk, IAM, RDS, etc.) • Terraform • CI/CD (GitHub Actions, GitlabCI, AWS Code Pipeline) • AWS Networking • Linux Based Environments

Are you tired of experiencing server crashes and app instability when dealing with a large number of users? Look no further! With over 6 years of expertise in automating and scaling system and server architecture on the cloud, I have helped numerous businesses achieve seamless operations. As an Upwork Enterprise client mentioned, "Hunnain did a fantastic job on our project, delivering real value. I would gladly work with him again in the future." Leave all your worries behind when it comes to planning, developing, and implementing your Web/Mobile app and cloud server. Whether you're a small business or a multi-million dollar organization, My full stack app development and cloud scaling strategies will leave you amazed. Recently, I have been actively working on Cloud Native Apps, utilizing cutting-edge technologies such as React, React Native, NodeJS, and Microservices. I specialize in N-Tier and Cloud Native (Docker/Kubernetes/Jenkins/Ansible), Serverless (AWS Lambda/Firebase), and Dapps (Ethereum/Hyperledger) architectures, tailoring them to meet your specific project requirements. As a full stack developer, I excel in both front-end and back-end development. On the front-end, I have expertise in React.js, Redux, webpack, Material UI, and Bootstrap, while on the back-end, I am well-versed in serverless technologies using Node.js, Python, Flask, CI/CD and various cloud platforms such as AWS, Google Cloud, Azure and Firebase. If you have read through my profile, kindly include the word "[apple]" in your invite to let me know. I believe in your success as my own, and I am committed to ensuring 100% client satisfaction. Software development for me is about more than just completing requirements. It is about creating something that makes people’s lives better by providing them with an enjoyable user experience that helps them do their tasks in an efficient and intuitive way. Take a moment to share some details about your company and project. If it appears to be a good fit, we can schedule a call to discuss further and bring your project to life. Let’s connect so we can start building something great together.

I am an experienced DevOps (Cloud) Engineer with a strong background in building, managing, and maintaining CI/CD pipelines and automating infrastructure and application deployments using a range of DevOps tools. I’m passionate about automation, cloud technologies, and system administration, and I enjoy helping businesses become more efficient and adaptable through smart, scalable solutions. I possess the following 6 AWS certifications: - AWS Certified DevOps Engineer - Professional - AWS Certified Solutions Architect - Professional - AWS Certified SysOps Administrator - Associate - AWS Certified Developer - Associate - AWS Certified Solutions Architect - Associate - AWS Certified Cloud Practitioner Skills: Strong communication and collaboration skills Experience with agile software development methodologies Knowledge of containerization and container orchestration (Docker & Kubernetes) Experience with continuous integration and delivery pipelines using tools such as Jenkins or GitLab Knowledge of AWS and Azure cloud computing platforms Familiarity with monitoring and logging tools such as Prometheus, Elasticsearch, and Kibana Experience with version control systems eg Git Knowledge of Linux systems and shell scripting Familiarity with database management and SQL

Technical Profile Cloud Services (AWS, Digital Ocean etc) CI/CD Pipeline AWS ECS, WAF, Loadbalancer, EC2, RDS, S3 etc jenkins Docker Domain Manage MySQL Linux Git Node.js Installation G-Suite, Mailgun etc

:-) 𝐈 𝐭𝐚𝐤𝐞 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚 𝐟𝐫𝐨𝐦 𝐧𝐚𝐩𝐤𝐢𝐧 𝐬𝐤𝐞𝐭𝐜𝐡 𝐭𝐨 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲; 𝐃𝐞𝐯𝐎𝐩𝐬 𝐩𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬, 𝐜𝐥𝐨𝐮𝐝 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞, 𝐚𝐧𝐝 𝐀𝐈 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬 𝐭𝐡𝐚𝐭 𝐚𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐬𝐜𝐚𝐥𝐞 𝐰𝐡𝐞𝐧 𝐢𝐭 𝐦𝐚𝐭𝐭𝐞𝐫𝐬. Over the years, I've worked on a wide range of projects from complex DevOps pipelines and cloud infrastructure to AI-powered automation platforms, RAG-based chat systems, and scalable backend architectures. My role usually goes beyond just development. I help clients think through the architecture, identify future bottlenecks early, and make technical decisions that keep the product maintainable as it grows. I started my journey building real-world tracking and automation systems, which eventually led me deeper into cloud infrastructure, backend engineering, and AI integrations. 𝐓𝐨𝐝𝐚𝐲, 𝐈 𝐰𝐨𝐫𝐤 𝐜𝐥𝐨𝐬𝐞𝐥𝐲 𝐰𝐢𝐭𝐡 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬, 𝐟𝐨𝐮𝐧𝐝𝐞𝐫𝐬, 𝐚𝐧𝐝 𝐒𝐌𝐄𝐬 𝐚𝐬 𝐚 𝐃𝐞𝐯𝐎𝐩𝐬 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐚𝐧𝐝 𝐀𝐈 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭. Some of the areas I commonly work on: 🔸 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 (𝐀𝐖𝐒 / 𝐀𝐳𝐮𝐫𝐞 / 𝐆𝐂𝐏) 🔸 𝐃𝐨𝐜𝐤𝐞𝐫, 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 & 𝐂𝐈/𝐂𝐃 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬 🔸 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐚𝐬 𝐂𝐨𝐝𝐞 (𝐓𝐞𝐫𝐫𝐚𝐟𝐨𝐫𝐦) 🔸 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐎𝐫𝐜𝐡𝐞𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 🔸 𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 (𝐎𝐩𝐞𝐧𝐀𝐈, 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧) 🔸 𝐧𝟖𝐧, 𝐌𝐚𝐤𝐞. 𝐜𝐨𝐦 & 𝐙𝐚𝐩𝐢𝐞𝐫 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 🔸 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐀𝐏𝐈𝐬, 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 & 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐃𝐞𝐬𝐢𝐠𝐧 I believe good software is not just about writing code , it's about building systems that are scalable, maintainable, and aligned with business goals. If you're building a product and need someone who can think beyond implementation and help structure the technical side properly, I'd be happy to discuss your project. Thankyou😊

Your AWS infrastructure should deploy in minutes, survive traffic spikes, and never wake you at 3 AM. I build and fix the systems that make that true. I'm a senior DevOps engineer (AWS Certified Solutions Architect + RHCSA, Top Rated with a 100% Job Success Score) who designs, automates, and hardens production cloud infrastructure for SaaS teams and startups. I take messy or fragile setups and turn them into infrastructure your team can deploy confidently and your finance team can budget. 🚀 What I do best: ▸ AWS infrastructure & serverless architecture: VPC, EKS/ECS, Lambda, API Gateway, RDS/Aurora, fully codified in Terraform or CloudFormation so everything is reproducible and rollback-safe. (Recently architected a 5-service serverless platform on AWS with zero-downtime deploys and full IaC.) ▸ Kubernetes that doesn't fight you: EKS design, autoscaling, zero-downtime rollouts, and the observability to catch problems before users do. ▸ CI/CD that ships in minutes: GitHub Actions / GitLab / Jenkins pipelines with testing, scanning, and automatic rollback. ▸ AWS cost optimization (FinOps): I find the waste in your bill and cut it without touching reliability. ▸ DevSecOps & hardening: IAM least-privilege, secrets management, VAPT remediation, infrastructure that passes a security review. 🤝 How I work: like a senior engineer on your team, not a ticket-taker. I tell you what's actually wrong, what it'll cost, and what I'd do if it were my money, then I document it so your team is never left in the dark. If your infrastructure is slowing you down, send me your current setup or the problem you're hitting and I'll tell you what's wrong before you charge anything.