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I build the infrastructure production systems run on — and the services that run on it. 4+ years across AWS and Azure, including a live cross-cloud migration during the March 2026 Middle East regional outage with near-zero downtime. WHAT I DO ☁️ Cloud Infrastructure — AWS and Azure environments built from scratch. Reusable Terraform modules across dev/test/prod. Least-privilege IAM, private networking, and SOC 2 controls built in from day one rather than retrofitted before an audit. ☸️ Kubernetes & Delivery — EKS and AKS design, Helm charts, GitOps with Argo CD using App-of-Apps with auto-sync and self-healing. GitHub Actions pipelines with multi-arch builds and Trivy scanning inside the pipeline, not bolted on after. 📊 Observability — Full instrumentation, not just a dashboard. OpenTelemetry, distributed tracing with Jaeger, Prometheus with custom alert rules, Loki, and Grafana dashboards built for the questions your team actually asks at 3am. ⚙️ Backend & GenAI Pipelines — Python/FastAPI, Django, Node.js. Multi-tenant architecture with schema-per-tenant isolation. End-to-end LLM ingestion on Temporal — batch embedding, retry policies, vector databases — running unattended. 🌐 Networking & Production Firefighting — Routing protocols, VPC and Transit Gateway design, OpenVPN PKI, TLS termination, WAF, DNS, reverse proxies. When something is down and nobody knows why, this is the work I'm best at. 🚨 Backup, DR & Cross-Cloud Migration — Velero for cluster and persistent volume backups, database point-in-time recovery, geo-restore runbooks, and tested restore procedures. Live provider migration when it's needed. I've done this under real outage conditions, not just in a runbook. RESULTS - Migrated a client's full production workload from AWS to Azure with near-zero downtime during the March 2026 ME-CENTRAL-1 outage, while the region was unavailable and most teams in it were down for the better part of a day - Built complete backup and recovery for a production Kubernetes platform — Velero for cluster state and volumes, database PITR, and documented geo-restore runbooks, tested rather than assumed - Cut manual cloud operations ~95% with a serverless EC2 scheduling platform on Lambda, EventBridge Scheduler, and Terraform - Reduced order execution latency ~73% on a live automated trading system through Redis caching, async queue processing, and multi-broker integrations - Architected a multi-tenant SaaS platform on FastAPI and Keycloak SSO with schema-per-tenant PostgreSQL isolation and automated per-tenant provisioning - Reduced EKS attack surface ~90% with Calico micro-segmentation and Kyverno admission policies, and took the platform to full SOC 2 audit readiness - Eliminated ~90% of manual infrastructure setup and cut deployment time ~50% with standardized Terraform modules across AWS Organizations INDUSTRIES Fintech and algorithmic trading · Generative AI and document platforms · Healthcare (HIPAA identity infrastructure, 1M+ users) · Multi-tenant SaaS STACK Cloud: AWS, Azure · Terraform, Ansible Kubernetes: EKS, AKS, Helm, Argo CD, Istio, Calico, Velero CI/CD: GitHub Actions, GitLab CI, Jenkins Backend: Python, FastAPI, Django, Node.js, NestJS, Celery, Temporal Data: PostgreSQL, Redis, Elasticsearch, Qdrant Observability: OpenTelemetry, Prometheus, Grafana, Jaeger, Loki, EFK Security: Kyverno, Vanta, Trivy, SonarQube, Keycloak, WAF, OpenVPN Send me the problem rather than the job description — I'll tell you honestly whether I'm the right person for it, and what it will actually take.

Need someone who can manage your Linux infrastructure and actually knows what's happening below the application layer? I'm Shivam, a Linux systems engineer and DevOps specialist with 5+ years of experience, and a contributor to the Linux kernel mainline. I build, secure, and debug Linux servers and cloud infrastructure with the kind of low-level systems knowledge most DevOps engineers don't have. 𝐇𝐎𝐖 𝐈 𝐂𝐀𝐍 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 🐧 𝐋𝐢𝐧𝐮𝐱 𝐒𝐲𝐬𝐭𝐞𝐦 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 Provision, configure, and harden Linux servers (Ubuntu, Debian, RHEL/CentOS). Comfortable with systemd, networking, user/permission management, backups, and security hardening for production systems. 🧩 𝐋𝐢𝐧𝐮𝐱 𝐊𝐞𝐫𝐧𝐞𝐥 𝐃𝐞𝐛𝐮𝐠𝐠𝐢𝐧𝐠 & 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐓𝐮𝐧𝐢𝐧𝐠 As an actual contributor to the Linux kernel mainline, I can dig into problems most admins can't, kernel-level memory issues, driver conflicts, and performance bottlenecks below the application layer, not just symptom-level fixes. ⚙️ 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐚𝐬 𝐂𝐨𝐝𝐞 CI/CD pipelines, Docker containerization, and Terraform-managed infrastructure. I build fault-tolerant, repeatable systems instead of fragile ones held together with manual SSH sessions. 🌐 𝐂𝐥𝐨𝐮𝐝𝐟𝐥𝐚𝐫𝐞 𝐒𝐞𝐭𝐮𝐩 & 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 DNS configuration, CDN tuning, WAF/security rules, and Cloudflare Workers for edge logic, get your site fast, secure, and resilient. ☁️ 𝐂𝐥𝐨𝐮𝐝 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 (𝐀𝐖𝐒) EC2, Lambda, S3, and CloudWatch setups designed for reliability and cost efficiency, backed by my AWS Certified AI Practitioner credential. 🏆 𝐋𝐈𝐍𝐔𝐗 𝐊𝐄𝐑𝐍𝐄𝐋 𝐌𝐀𝐈𝐍𝐋𝐈𝐍𝐄 𝐂𝐎𝐍𝐓𝐑𝐈𝐁𝐔𝐓𝐎𝐑 This is the part most Linux freelancers can't say: I've had patches merged into the actual Linux kernel. My work has included fixing how `vrealloc()` releases physical memory pages when shrinking allocations (it previously only updated bookkeeping), adding memory-shrinking support to a Rust kernel data structure, and a related optimization in the Rust binder driver, plus hardware-specific display/backlight driver fixes. The work was reviewed and signed off by core Linux maintainers, including Andrew Morton, the longtime maintainer of the kernel's memory-management subsystem. In practical terms: if your issue is below what a typical sysadmin can diagnose, an odd kernel panic, a memory leak invisible to application logs, a misbehaving driver, I can read the kernel source and actually fix it. 🌟 𝐖𝐇𝐀𝐓 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐒𝐀𝐘 🌟 ❝ Working with Shivam was a fantastic experience. His expertise in performance-oriented languages like Rust and C++ was a game-changer for our project. He delivered a highly efficient and meticulously optimized solution, demonstrating a rare talent for deep, logical problem-solving at the systems level. What impressed me most was his ability to connect this low-level expertise with high-level strategic thinking. He doesn't just understand the algorithms; he has the foundation to make them run incredibly fast. Highly recommend for any demanding technical role. ❞ - Client ❝ great to work with ❞ - Adam C. ❝ Shivam was amazing. This was my second time using him for a project and I was extremely happy. I will definitely be going back to him for any new projects. ❞ - Salman L. ➤ 𝐑𝐄𝐀𝐃𝐘 𝐓𝐎 𝐅𝐈𝐗 𝐀𝐍𝐃 𝐇𝐀𝐑𝐃𝐄𝐍 𝐘𝐎𝐔𝐑 𝐈𝐍𝐅𝐑𝐀𝐒𝐓𝐑𝐔𝐂𝐓𝐔𝐑𝐄? Looking for a Linux system administrator, DevOps engineer, or Cloudflare specialist who understands systems from the kernel up? Message me on Upwork today. I typically respond within 6 hours and prioritize delivering production-ready results. 𝐓𝐎𝐎𝐋𝐒 & 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐘 𝐋𝐢𝐧𝐮𝐱 & 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 - Linux Kernel (mainline contributor) - Ubuntu / Debian / RHEL / CentOS - systemd, Bash scripting - Networking & firewall configuration (iptables/nftables) - Server hardening & security - Performance debugging (strace, perf, ftrace) 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 - Docker - Terraform - CI/CD (GitHub Actions, GitLab CI, Jenkins) - Ansible - Monitoring (Prometheus, Grafana) 𝐂𝐥𝐨𝐮𝐝 & 𝐄𝐝𝐠𝐞 - AWS (EC2, Lambda, S3, CloudWatch, SageMaker) - Cloudflare (Workers, DNS, CDN, WAF, Zero Trust) - AWS Certified AI Practitioner 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 - Rust - Python - Node.js / TypeScript - Bash 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 - PostgreSQL - MongoDB - Redis Linux System Administrator, Linux System Administration, Linux Kernel Developer, Linux Server Management, Linux DevOps, DevOps Engineer, Senior DevOps Engineer, Cloudflare

✔️ Plex, IPTV, Emby, Jellyfin, Usenet Expert ✔️ Synology, TrueNAS, UnRaid, NAS, Proxmox, Openshift, Linux, Mac ✔️ Unity with PHP Multiplayer Game Development ✔️ Apache, NGINX, Varnish, Redis, Memcached, Postfix, Exim, MySQL, Postgres, MariaDB, DynamoDB, Redshift, Prometheus, Grafana ✔️ GCP, Microsoft Azure, AWS, Digital Ocean, Hetzner, Contabo, Cloudflare ✔️ SSO Expert- Authentik, LDAP, SAML, Keycloak ✔️ Proficient in Docker, Kubernetes, Helm, Terraform, Ansible ✔️ Expertise in Private DNS servers, DNS over TLS, DNS over HTTPS, Bind, DNSMasq, Unbound, etc ✔️ All Scripts/Forum Software installation and configuration ✔️ Troubleshooting Websites/servers (Linux) ✔️ Git implementation/integration with existing software flow, including CI-CD Pipeline ✔️ Domain Configuration, Management ✔️ Proficient in JAVA, PHP, PYTHON, SWIFT, KOTLIN. ✔️ Prepare for and carry out server migration. Site migration, Geo Restriction, Advanced Security ✔️ HestiaCP, Cloudflare, Tunneling, WHM, cPanel

I am a Software & DevOps engineer with over a decade of experience, contributing to esteemed organizations such as 𝐀𝐌𝐃, 𝐃𝐞𝐥𝐥, 𝐖𝐚𝐥𝐦𝐚𝐫𝐭,. My expertise spans a diverse range of areas, from orchestrating 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 clusters with 𝐍𝐯𝐢𝐝𝐢𝐚 𝐆𝐏𝐔𝐬 to proficiently coding in 𝐆𝐨 𝐚𝐧𝐝 𝐏𝐲𝐭𝐡𝐨𝐧 I specialize in creating Kubernetes operators and controllers, optimizing cloud infrastructure using 𝐀𝐧𝐬𝐢𝐛𝐥𝐞, 𝐓𝐞𝐫𝐫𝐚𝐟𝐨𝐫𝐦, and harnessing the capabilities of 𝐀𝐖𝐒, 𝐀𝐳𝐮𝐫𝐞, 𝐚𝐧𝐝 𝐆𝐂𝐏. 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬: • Managed thousands of Kubernetes clusters, ensuring scalability and performance. • Proficient in Rancher, Helm, ArgoCD, and Kubernetes tools. 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: Proficient in writing efficient code in 𝐆𝐨 and 𝐏𝐲𝐭𝐡𝐨𝐧. 𝐂𝐥𝐨𝐮𝐝 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: • Orchestrated AWS, Azure, and GCP cloud environments. • Leveraged Ansible and Terraform for infrastructure management. • Built Internal Developer Platforms (IDPs) to empower teams. 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: • Utilized GitOps tools like ArgoCD, Flux for automated deployments. • Strong experience with CI/CD tools including Jenkins, GitLab CI/CD, GitHub Actions. 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫𝐢𝐳𝐚𝐭𝐢𝐨𝐧: • Created and managed Docker containers for streamlined application packaging. • Deployed and optimized microservices architecture using Istio and Nginx. 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: • Worked with databases such as RabbitMQ, MongoDB, PostgreSQL, and Redis. 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 • CKAD (Certified Kubernetes Application Developer) and • CKA (Certified Kubernetes Administrator) certified. 𝐎𝐧-𝐏𝐫𝐞𝐦𝐢𝐬𝐞 & 𝐂𝐥𝐮𝐬𝐭𝐞𝐫 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: • Managed large clusters on-premise, including expertise in OpenStack. • Proficient with advanced clustering tools like k3s and Rancher. 𝐂𝐥𝐢𝐞𝐧𝐭 𝐄𝐧𝐠𝐚𝐠𝐞𝐦𝐞𝐧𝐭: • Successfully handled over 25 clients in the past year, delivering tailored solutions.

Your deploys are slow, your cloud bill keeps climbing, and one bad night could take production down. I fix infrastructure so it stops being the thing that wakes you up. I'm a Dev Ops and Cloud Infrastructure Engineer with 10 years building, automating, and securing production environments on OpenStack, OpenShift and Kubernetes. Top Rated on Upwork with a 100% Job Success Score across every engagement — clients keep me because I ship work that runs without me and scales without surprises. What I deliver 🚀 CI/CD Automation — GitHub Actions, GitLab CI, pipelines that take you from manual, error-prone releases to fast, zero-downtime automated deploys with rollback built in. ☁️ Cloud Infrastructure (Open Stack, AWS, Azure) — Production-grade environments designed for scalability, security, and cost from day one. Cloud architecture, Deployment and Operations. 📦 Kubernetes & Containers — Cluster setup, migration, and management on bare metal or self-managed clusters. Helm charts, Git Ops, auto scaling, zero-downtime cut overs, Docker containerization. 🏗 Infrastructure as Code — Terraform and Ansible environments that are version-controlled, auditable, and reproducible across every stage. No more manual config drift. 🐧 Linux Administration & Hardening — Server setup, performance tuning, security hardening, and Bash automation for environments that can't afford downtime. 📊 Monitoring & Observability — Prometheus, Grafana, and centralized logging so failures get caught before your users notice. Tech I work with daily · AWS · Azure · Docker · Terraform · Ansible · GitHub Actions · Git Lab CI · Jenkins · Helm · Prometheus · Grafana · Linux · Bash · Python I respond within 2 hours. Tell me what's breaking, slow, or expensive about your infrastructure and I'll tell you exactly how I'd fix it.

Hi, I'm Altaf. I’m a Full-Stack Developer and DevSecOps Engineer. I help startups and businesses build, deploy, and secure web applications and cloud infrastructure. I enjoy working on projects where I can take care of more than just the code. You might need a SaaS application built, an existing application fixed, a Docker setup deployed, a VPS configured, CI/CD automated, or a production server secured. I can work across all of that. I’ve worked with startups and clients on projects involving Next.js, React, Node.js, Python, Docker, Linux, AWS, Oracle Cloud, DigitalOcean, Hetzner, Supabase, n8n, CI/CD, and server infrastructure. I also build and work on my own products, including CodeSec, a cybersecurity platform focused on helping modern applications and infrastructure stay secure. What I can help you with Full-Stack Development • Next.js / React applications • Node.js / Express.js backends • TypeScript / JavaScript • Python APIs and automation • PostgreSQL / MySQL / Supabase • REST APIs and integrations • Authentication & authorization • Admin dashboards • SaaS applications • E-commerce websites • Stripe / Paddle / Razorpay integrations DevOps & Cloud • Docker & Docker Compose • AWS / EC2 • Hetzner / DigitalOcean / Oracle Cloud • Linux server administration • GitHub Actions / GitLab CI/CD / Jenkins • Nginx / Traefik • Cloudflare • SSL & DNS • Application deployment • Server monitoring and backups Security & DevSecOps • Secure CI/CD pipelines • Application security • OWASP Top 10 • SAST / DAST • Trivy / Semgrep / SonarQube • Container security • Server hardening • Cloud security • Vulnerability assessment • Security automation A few things I've worked on CodeSec — my own AI-powered cybersecurity platform. Affly — affiliate marketing SaaS with Paddle subscriptions and an admin dashboard. ShazfaKraft — custom e-commerce platform with an admin dashboard. I've also worked on VPS and cloud deployments, Docker environments, n8n hosting, Matrix Synapse migration, Postiz migration, server configuration, and troubleshooting production setups. What my clients say My completed Upwork projects have a 100% Job Success Score and 5.0 ratings. Clients have specifically described me as: • Reliable • Clear communicator • Committed to quality • Solution oriented • Detail oriented One client said I was "extremely proficient at what he does and very clear with communication." Another said I was "always available, precise and detailed in my communications, and punctual." That's the kind of experience I try to provide on every project. I don't believe in overcomplicating things. I'll first understand what you're trying to achieve, then I'll recommend the simplest reliable way to get there. If you already have an application that's broken, a server that's giving you trouble, or infrastructure that needs improving, I can help with that too. And if you're starting something new, I can help take it from idea → development → deployment → production. Send me a message and tell me what you're building or what you're stuck on. I'll take a look and let you know how I would approach it. TECH STACK Next.js | React | Node.js | TypeScript | JavaScript | Python | Express.js | PostgreSQL | MySQL | Supabase | Docker | Docker Compose | AWS | EC2 | Hetzner | DigitalOcean | Oracle Cloud | Linux | GitHub Actions | GitLab CI/CD | Jenkins | Cloudflare | Nginx | Traefik | n8n | DevOps | DevSecOps | Cloud Security | Application Security | Cybersecurity | Automation