Tired of fragile infrastructure, unpredictable deployments, and cloud bills that keep climbing? I turn chaotic, manual environments into disciplined, automated, and security-hardened platforms that scale calmly under real pressure. I work at the intersection of Architecture, Execution, and Security. With over six plus years of experience, I don’t just build pipelines; I design systems around business constraints, traffic patterns, and strict compliance needs like FedRAMP and PCI DSS. From stabilizing AWS environments for enterprise stakeholders like Apple & eBay to scaling government platforms for 50k concurrent users, I ensure your infrastructure is a business asset, not a bottleneck. 𝐓𝐡𝐞 𝐕𝐚𝐥𝐮𝐞 𝐈 𝐁𝐫𝐢𝐧𝐠 𝐭𝐨 𝐘𝐨𝐮𝐫 𝐓𝐞𝐚𝐦: • Rapid Environment Provisioning: Reduced spin-up times by ~80% using Terraform and automated multi-account baselines. • Operational Resilience: Reduced stability incidents from weekly to near-zero through custom Kubernetes remediation playbooks. • Cost & Compliance: Optimized cloud spend (e.g., AWS Macie) while driving remediation for vulnerabilities across IAM, networking, and clusters. • Faster, Safer Delivery: Integrated security checks (Trivy, SonarQube) into CI/CD pipelines to move from reactive firefighting to predictable, secure operations. 𝐂𝐨𝐫𝐞 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: I specialize in building production-ready platforms using a modern, secure-by-default stack: Cloud Platforms: AWS (EKS, ECS, IAM, VPC), Oracle Cloud (OCI/OKE), and Azure (AKS). Orchestration & GitOps: Kubernetes, Helm, Argo CD, and Istio. Infrastructure as Code: Advanced Terraform, Terragrunt, CloudFormation, and Ansible. CI/CD & Automation: GitHub Actions, Jenkins, GitLab CI, and Bitbucket Pipelines. Observability & Security: Prometheus, Grafana, ELK, Orca Security, Kyverno, and OCI Cloud Guard. 𝐕𝐚𝐥𝐢𝐝𝐚𝐭𝐞𝐝 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ✓ Certified Kubernetes Application Developer (CKAD) ✓ AWS Certified Solutions Architect – Associate ✓ AWS Certified Developer – Associate ✓ HashiCorp Certified: Terraform Associate 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫: I don’t just configure tools; I build structured DevSecOps systems. Whether you need an AWS multi-account landing zone, a PCI DSS-aligned migration, or a Kubernetes security overhaul, I provide a clear, structured path forward. If you’re looking for someone who can bring clarity to complexity and help your platform scale without chaos, click Invite or Send a Message. 𝐋𝐞𝐭’𝐬 𝐛𝐮𝐢𝐥𝐝 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐭𝐡𝐚𝐭 𝐡𝐮𝐦𝐬 𝐪𝐮𝐢𝐞𝐭𝐥𝐲 𝐢𝐧𝐬𝐭𝐞𝐚𝐝 𝐨𝐟 𝐬𝐜𝐫𝐞𝐚𝐦𝐢𝐧𝐠 𝐚𝐭 𝟑 𝐀𝐌!

Platform & DevOps Architect | Kubernetes, GitOps, HA Databases, Cloud I help companies build reliable production infrastructure and solve critical incidents. My specialties include: * Kubernetes and GitOps platforms * Cloud solutions (AWS/Azure/GCP) * PostgreSQL Patroni and database HA * Active Directory and Windows infrastructure * Disaster Recovery and High Availability * Production troubleshooting and performance optimization With 20+ years of infrastructure experience, I work with startups and enterprises to design, automate and operate business-critical systems. Linux / Platform Engineering: • Production Kubernetes platforms using GitOps (FluxCD, ArgoCD), Helm, and Docker • Web and application stacks: nginx, Apache, PHP, MySQL/MariaDB * DBA: Postresql Patroni, MySQL InnoDB Cluster, Galera Cluster • CI/CD pipelines with GitHub Actions, GitLab CI, Bitbucket Pipelines, and Azure DevOps • Monitoring and observability using Grafana + Prometheus, Zabbix, ELK (+ APM) • Automation and scripting with Bash and Python • Virtualization platforms: VMware, Hyper-V, Xen AWS, GCP, Azure - 10+ years of experience with clouds • Perfect knowledge of SaaS services: EC2, ECR/ECS, VPC, Lambda etc. • Strong architect skills. • aws-cli, cloud, az skills. Windows Infrastructure (20+ years): • Expert in Windows Server 2003–2022, Active Directory, Group Policy, Exchange 2013–2019, and Exchange Online. • Failover Clustering, Network Load Balancing (NLB), MS SQL Server Clusters and AGs. Typical projects: • PostgreSQL Patroni HA clusters • Kubernetes production troubleshooting • ClickHouse migrations and optimization • Active Directory security audits • Hyper-V and VMware infrastructure • Disaster Recovery design and implementation • Performance optimization and incident response

𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 | 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 | 𝐀𝐖𝐒 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭 | 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐭𝐨 𝐒𝐭𝐚𝐫𝐭 𝐈𝐦𝐦𝐞𝐝𝐢𝐚𝐭𝐞𝐥𝐲 Most growing teams face the same challenges: rising cloud costs, slow release cycles, security bottlenecks, infrastructure complexity, and reliability issues that impact customers and engineering velocity. 𝐈 𝐡𝐞𝐥𝐩 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬 𝐚𝐧𝐝 𝐠𝐫𝐨𝐰𝐢𝐧𝐠 𝐭𝐞𝐚𝐦𝐬 𝐛𝐮𝐢𝐥𝐝, 𝐬𝐞𝐜𝐮𝐫𝐞, 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐞, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐞 𝐭𝐡𝐞𝐢𝐫 𝐜𝐥𝐨𝐮𝐝 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬. As an AWS Certified Solutions Architect and DevOps/DevSecOps Engineer, I work across cloud architecture, Kubernetes, CI/CD, compliance, observability, automation, and infrastructure modernization. I help teams reduce cloud costs, improve deployment speed, strengthen security posture, and create platforms that developers enjoy using. I support AWS, Azure, Hetzner, and hybrid cloud environments, with hands-on experience delivering production-grade platforms for SaaS companies, startups, and enterprise teams. ➤ 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 ✔ 𝐂𝐥𝐨𝐮𝐝 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 & 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 AWS, Azure, Hetzner, multi-cloud architecture, landing zones, networking, IAM, high availability, disaster recovery, and production-ready platform design. ✔ 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 & 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 Kubernetes, EKS, AKS, Helm, Docker, GitOps, cluster upgrades, scaling strategies, and developer platform enablement. ✔ 𝐂𝐈/𝐂𝐃 & 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 GitHub Actions, Jenkins, release automation, testing pipelines, deployment strategies, rollback systems, and streamlined developer workflows. ✔ 𝐃𝐞𝐯𝐒𝐞𝐜𝐎𝐩𝐬 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞 Drata implementation, SOC 2 readiness, security automation, vulnerability management, secrets management, IAM governance, audit logging, and compliance-focused infrastructure. ✔ 𝐂𝐥𝐨𝐮𝐝 𝐌𝐢𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐌𝐨𝐝𝐞𝐫𝐧𝐢𝐳𝐚𝐭𝐢𝐨𝐧 Cloud migrations, Kubernetes migrations, infrastructure modernization, workload re-platforming, and legacy system transformation with minimal downtime. ✔ 𝐎𝐛𝐬𝐞𝐫𝐯𝐚𝐛𝐢𝐥𝐢𝐭𝐲 & 𝐒𝐢𝐭𝐞 𝐑𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲 Prometheus, Grafana, CloudWatch, Azure Monitor, centralized logging, alerting, incident response, root cause analysis, and reliability engineering. ✔ 𝐂𝐨𝐬𝐭 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 & 𝐅𝐢𝐧𝐎𝐩𝐬 Cloud cost visibility, resource right-sizing, reserved instance strategies, budget controls, and long-term cost governance. ✔ 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐚𝐬 𝐂𝐨𝐝𝐞 Terraform, Bash, Python, infrastructure automation, operational tooling, custom scripts, self-service workflows, and repeatable deployments. ✔ 𝐒𝐚𝐚𝐒 & 𝐋𝐨𝐯𝐚𝐛𝐥𝐞 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭𝐬 Deploying and scaling SaaS applications, Lovable applications, containerized workloads, custom domains, SSL, databases, monitoring, and production operations. 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 ⬩ AWS Certified Solutions Architect with real-world production experience ⬩ Strong across architecture, DevOps, security, and operations ⬩ Focused on measurable outcomes, not just infrastructure setup ⬩ Proven experience supporting startups through rapid growth ⬩ Practical, automation-first mindset ⬩ Clear communication and long-term maintainability Whether you need cloud architecture, Kubernetes, DevSecOps, compliance automation, migrations, cost optimization, or a complete platform built from scratch, I can help turn your infrastructure into a competitive advantage. 𝐈 𝐚𝐦 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐟𝐨𝐫 𝐚 𝐪𝐮𝐢𝐜𝐤 𝐜𝐚𝐥𝐥 𝐭𝐨 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭𝐬 𝐚𝐧𝐝 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐠𝐨𝐚𝐥𝐬. 𝐈𝐧𝐯𝐢𝐭𝐞 𝐦𝐞 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭, 𝐚𝐧𝐝 𝐈 𝐜𝐚𝐧 𝐠𝐞𝐭 𝐬𝐭𝐚𝐫𝐭𝐞𝐝 𝐚𝐬 𝐬𝐨𝐨𝐧 𝐚𝐬 𝐩𝐨𝐬𝐬𝐢𝐛𝐥𝐞.

Welcome to my profile! I’m an IT professional with 10+ years of experience and a strong focus on Zabbix monitoring, Linux administration, and DevOps tools. My goal is to help you build reliable, scalable, and secure systems that perform at their best. Here’s how I can support your project: * Zabbix Monitoring – End-to-end setup, scaling to 10k+ devices, custom dashboards, integrations (Grafana, PagerDuty), and performance optimization. * Linux Administration – Configuration, security hardening, automation, and troubleshooting for stable, high-performing environments. * DevOps Tools – Hands-on expertise with Jenkins, Docker, SonarQube, Artifactory, Azure DevOps, Kubernetes (K8s) and more. * Database Management – MySQL performance tuning, replication, and reliability improvements. I’ve helped clients reduce downtime, improve visibility into their infrastructure, and scale monitoring systems smoothly. Communication is always a priority — I keep things transparent, proactive, and solution-oriented. I’m available 30 hours per week and committed to delivering results that drive real value. Let’s connect to discuss how I can help make your systems more efficient and reliable.

Senior Full Stack & AWS DevOps Engineer with 8+ years of experience building and stabilizing production systems for startups, agencies, and enterprises. Clients typically bring me in for two kinds of work: building new SaaS platforms and applications from the ground up, or fixing critical issues in existing systems that other developers couldn't resolve. Recent examples include resolving a multi-tenant data isolation bug in a Node.js and PostgreSQL platform, setting up HAProxy with Consul integration across a 3-node production cluster, and diagnosing AWS infrastructure issues that were causing live outages. I work across the full stack, React, Next.js, Node.js, NestJS, PostgreSQL, MongoDB, paired with deep AWS and DevOps expertise, AWS, Docker, Kubernetes, Terraform, CI/CD pipelines. I've contributed to platforms across healthcare, HRMS, warehouse automation, fintech, automotive, and SaaS, serving thousands of users. Core Expertise Full Stack Web Development, SaaS Platform Architecture, Multi-Tenant Application Design, REST API and GraphQL Development, Microservices Architecture, Cloud Infrastructure and DevOps, CI/CD Automation, Performance Optimization, Security and Authentication, Database Design and Optimization Frontend : React.js, Next.js, TypeScript, Redux, Tailwind CSS, Material UI, JavaScript (ES6+), HTML5, CSS3 Backend : Node.js, NestJS, Express.js, Python, Django, Laravel, REST APIs, GraphQL, WebSockets Databases : PostgreSQL, MySQL, MongoDB, Redis AWS and DevOps : AWS EC2, S3, RDS, Lambda, CloudFront, Route53, Docker, Kubernetes, Terraform, Nginx, GitHub Actions, Jenkins, Cloudflare Security and Authentication : JWT, OAuth 2.0, AWS Cognito, RBAC, SSO Testing and QA : Jest, Cypress, Mocha, Postman Whether you're building a new SaaS platform, scaling existing infrastructure, or need someone to debug and fix a production issue quickly, I can help take it from where it is to where it needs to be. Let's talk about your project.

I migrate, harden, and run hybrid infrastructure across AWS, VMware, and Proxmox so you get one architect for both your cloud and your on-prem stack instead of stitching together three specialists. Whether you're moving on-prem workloads to AWS, building a Proxmox or VMware cluster, recovering a broken Linux server, or automating deployments with Ansible and CI/CD, I've done it across 85 completed jobs at a 100% Job Success score. 13+ years of hands-on enterprise infrastructure experience, AWS-certified (Solutions Architect, SysOps, Developer) and KCNA, with real production work behind every claim below. Cloud & migration On-prem ↔ AWS migrations (MGN/DRS), EC2, ECS/Fargate, Lightsail, CloudFront, NGINX, SSL/certificate setup, and AWS backup configuration. I've moved live workloads both directions AWS to on-prem and Dell PowerEdge to consolidated micro-servers without losing data or uptime. Virtualization Proxmox (installs, v6→v8 upgrades, cluster setup, VM/VMDK exports from AMI) and VMware (vCenter/ESXi cluster setup, vSphere, VMDK migrations). This is repeat work for me, not a side skill. Disaster recovery & resilience Tested DR with real RTO/RPO targets, warm-standby and pilot-light patterns, and backup strategies that actually restore verified, not assumed. DevOps & automation Ansible-first configuration automation, Docker and Docker Swarm, Jenkins CI/CD pipelines, and containerized deployments. I automate the repeatable so your team stops doing it by hand. Linux & hardening Server hardening, security baselines, performance tuning, hosting stacks (Plesk, cPanel), and monitoring with DataDog across Ubuntu, RHEL/CentOS, and SUSE. What clients consistently say: clear communication, reliable delivery, and solving the actual problem instead of the surface symptom. Send me a short description of your environment and what you're trying to achieve. I'll reply with a straight assessment and an honest recommendation on whether I'm the right fit usually within a few hours.

Are your cloud costs too high? Is your deployment pipeline slow, fragile, or manual? I'm an AWS Certified DevOps Engineer with 10+ years of experience helping startups and enterprises cut cloud spending by 40%+, automate deployments, and achieve zero-downtime delivery. What I deliver: ✅ Cloud Cost Optimization — Rightsizing, auto-scaling, spot instances, budget alerts. Clients save $2K–$20K/month. ✅ CI/CD Pipelines — GitHub Actions, Jenkins, GitLab CI, ArgoCD. From 4-hour manual deploys to 15-minute automated releases. ✅ Infrastructure as Code — Terraform, Pulumi, AWS CDK. Reproducible, version-controlled infrastructure across all environments. ✅ Kubernetes & Containers — EKS, AKS, Docker. Production-grade orchestration with auto-scaling and health monitoring. ✅ Monitoring & Security — Prometheus, Grafana, ELK Stack, CloudWatch. HIPAA/SOC2/GDPR compliant environments. How I work: Clear milestones and daily communication Documentation included with every engagement Available for urgent/emergency requests Tech Stack: AWS • Azure • GCP • DigitalOcean • Terraform • Kubernetes • Docker • Helm • GitHub Actions • Jenkins • ArgoCD • Prometheus • Grafana • ELK Stack 💬 Message me with your challenge — I'll respond within 1 hour with a clear plan.

🚀 Shipping Gen-AI Apps & Production-Grade LLM Infrastructure | Top 3% Toptal Freelancer | 100% Job Success I help businesses deploy and scale Gen-AI/LLM applications on robust, cost-efficient cloud infrastructure. From self-hosting LLMs and fine-tuning models to building production-ready AI pipelines, I bridge the gap between cutting-edge AI and reliable DevOps practices. 🔹 WHAT I BRING: • Gen-AI/LLM Infrastructure: Self-hosted LLMs, fine-tuning pipelines, RAG systems, vector databases • Cloud & DevOps: AWS, GCP, Azure — Infrastructure as Code (Terraform), CI/CD, Kubernetes, Docker • Site Reliability Engineering (SRE): Monitoring (Grafana, Prometheus), incident response, 99.9%+ uptime • Software Architecture: Microservices, event-driven systems, scaling to millions of users 🔹 NOTABLE EXPERIENCE: • Senior Software Developer at Cisco (2.5 years) — Enterprise-grade Java/Spring microservices • Site Reliability Engineer at MailerLite — High-availability email infrastructure • DevOps Architect at TeamMate Technology (5+ years) — Full-stack Kubernetes deployments • Founder of Devplusops — Helping startups and enterprises modernize their infrastructure 🔹 WHY CLIENTS CHOOSE ME: ✅ 100% Job Success Score & Top Rated Plus on Upwork ✅ Top 3% vetted freelancer on Toptal ✅ "Ahsan is an excellent senior software engineer who solves complex problems quickly and with high quality. He is reliable and exceeded my expectations." — Former Technical Leader Whether you need to deploy your first LLM, optimize cloud costs, or build a bulletproof CI/CD pipeline, let's connect and take your infrastructure to the next level.

Hey, I'm Serge — a DevOps engineer and Linux sysadmin with 16 years of hands-on experience. Top Rated Plus on Upwork, $70K+ earned, 100% Job Success Score across 24 contracts. My day-to-day involves leading DevOps work for US and Israeli companies — finance, government, tech. Through my employer, the rate is around $100–120/hr — that includes company overhead, account managers, and the usual agency markup. Here on Upwork you hire me directly. No middlemen, no account managers. That's why the rate is lower — not because the work is different. What I focus on most: **Kubernetes and container infrastructure** I've set up and migrated dozens of projects to Kubernetes — EKS, GKE, AKS, and on-prem. I handle the full stack: Helm-based deployments, Grafana + Loki for monitoring and logging, Terraform for infra as code. If your app is still running on Docker Compose and you're hitting limits, this is exactly what I do. **CI/CD pipelines** Setting up proper pipelines from scratch — GitLab CI, GitHub Actions, Helm. Dev/stage/prod environments with proper Git flow so your developers aren't blocking each other. **Cloud infrastructure — AWS, GCP, Azure** Terraform for everything that can be described as code. Multi-environment setups, VPC, networking, RDS, S3, load balancers, security groups. Migrations between accounts, between clouds, and from on-prem to cloud. **AI infrastructure** More recently I've been setting up GPU-based AI infrastructure — Ollama, vLLM, LiteLLM proxy. If you're deploying local LLMs or building AI-powered apps and need the infra side sorted, that's something I can help with too. **A few practical things:** - Up to 8 hours/day — I work focused, not just "clocked in" - You work directly with me throughout the project - I write documentation so your team can actually use what I build If you have a project in mind and want to talk through the scope first, I'm happy to do a short call. Just send a message. Serge ---

I am a Splunk Certified Architect. I have experience in capacity planning, deploying, configuring, and managing Splunk Env. And I have a proven record of providing 99.9% SLA of Splunk Env. And good at troubleshooting issues of Splunk Env, Universal Forwarders, etc. And as I am also a Splunk Certified Developer. I have good hands-on on creating complex Splunk dashboards using HTML, XML, Tokens, custom Javascript to make Splunk Dashboard more dynamic. And creating and optimization of Splunk Queries. Also, I have developed various Splunk Add-on and Apps and some of them are also published on SplunkBase. Apart from Splunk, I have a good understanding and grip on AWS and its various services, Jenkins, Git, Python, Shell Script, Automation, Ansible.