Md. Abu Zahid — Cloud Infrastructure & DevOps Engineer

What I do

Cloud infrastructure & DevOps capabilities

From an empty server to a monitored, auto-scaling, self-healing production environment — I own the whole path.

☁️

Cloud Provisioning & Architecture

AWS (EC2, S3, RDS, VPC, CloudFront, Route 53, ELB, auto-scaling groups) and DigitalOcean droplets — right-sized, networked, and built to grow with your traffic.

⛵

Kubernetes & Containers

Dockerized apps with multi-stage builds, K8s Deployments, Services, Ingress, ConfigMaps & Secrets, Helm charts, HPA autoscaling, liveness/readiness probes and self-healing workloads. CKA-level skills (self-trained).

🚀

CI/CD Pipelines

Jenkins & GitHub Actions pipelines: build → test → deploy on every push, with lint/test gates, image builds, environment-based deploys, secure secrets and one-click rollback.

🛡️

Server Hardening & Security

UFW firewall, fail2ban, SSH-key-only access, least-privilege users, automatic security updates, SSL via Let's Encrypt, and locked-down database access.

🌐

Cloudflare, DNS & CDN

DNS migration, proxied records, SSL/TLS modes, caching & page rules, WAF and rate limiting, DDoS protection — faster sites and a smaller attack surface.

⚙️

Infrastructure as Code & Automation

Ansible playbooks that rebuild an entire environment from scratch, repeatably — staging and production identical, no "it works on that server" surprises.

📈

Monitoring, Backups & Recovery

Uptime and resource monitoring with alerts, centralized logs, automated database backups, tested restores and a real disaster-recovery path.

⚡

Performance & Cost Optimization

Nginx tuning, caching layers (Redis), queue workers, database query & index tuning, and right-sizing instances — I've cut response times by up to 40% and trimmed cloud bills along the way.

🤖

AI-Assisted DevOps (bonus)

I built a chat-driven ops agent that turns plain-English commands into audited Ansible runs — diagnostics run freely, every change asks for confirmation. Automation with a safety model.

Hire me for

Typical DevOps engagements

Clear, scoped pieces of work — pick one, or hand me the whole infrastructure.

🧱

Deploy my app to the cloud

You have an app, no server. I provision, secure and deploy it on AWS or DigitalOcean with SSL, domain, backups and monitoring — handed over with docs.

🔧

Fix / rescue my server

Site down, slow, hacked, out of disk, or the last dev disappeared? I diagnose, stabilize, harden, and document what actually happened.

🔁

Set up CI/CD

No more manual FTP deploys. Push to git → tested and deployed automatically, with staging, rollback and deploy notifications.

📦

Dockerize & move to Kubernetes

Containerize an existing app, write the Helm chart, and get it running on K8s with autoscaling and zero-downtime rolling updates.

📊

Scale for traffic

Load balancing, auto-scaling, caching, queues and database tuning — so a traffic spike is a good day, not an outage.

🩺

Ongoing maintenance & monitoring

Monthly retainer: patching, backups, uptime alerts, cost review and a human who responds when something breaks.

Toolbox

Cloud & DevOps tech

Core expertise: Kubernetes · CI/CD · Jenkins · Auto Scaling · Nginx · Linux — backed by the full toolbox below.

KubernetesCI/CD PipelinesJenkinsELB · Auto ScalingNginxLinux / Ubuntu AWS (EC2 · S3 · RDS · VPC)CloudFront · Route 53CloudWatchDigitalOceanCloudflare (DNS · CDN · WAF) DockerHelmkubectlIngress-NginxHPA Autoscaling AnsibleGitHub ActionsBash scriptingGit PHP-FPMSupervisorRedisMySQL · PostgreSQL Let's Encrypt / SSLUFW · fail2banBackups & DRUptime monitoringZero-downtime deploysAI-assisted ops (Agent SDK)

★ Core expertise — the skills I lead projects with.

Why clients hire me for infrastructure

A DevOps engineer who also writes the app

Most infra problems are really application problems. I've been on both sides of the deploy — so I fix the cause, not the symptom.

✓Dev + Ops in one personI've built the Laravel, Node and Next.js apps I deploy — so I know why the queue stalls, why memory climbs, and where to actually fix it.
✓Repeatable, not hand-craftedAnsible playbooks and pipelines mean your environment can be rebuilt from scratch — no undocumented server only I understand.
✓Security is part of setup, not an afterthoughtFirewall, fail2ban, SSH keys, least-privilege users and SSL are configured on day one. I've built systems for banking and government clients.
✓You keep the keysEverything runs in your cloud account, your repo, your domain — with credentials handed to you and clean handover docs.
✓Low risk to startStart with a small paid milestone — a server audit or a single deploy — and see the quality before committing to more.

⭐ Top-rated across platforms

Strong, verified track record — 50+ five-star client reviews across completed projects — built on on-time delivery and repeat clients.

⭐ 4.9 average rating ⭐ 50+ reviews ⭐ Upwork

Hire me on Upwork →

I get your app deployed, secured & scaling — and keep it online.