DevOps Intern @ Springer Capital

Linux · Git/GitHub · Docker · CI/CD · AWS · Networking

Build it. Break it. Fix it. Real systems over theory.

I'm a DevOps Intern with a systems-administration and networking background — Windows Server, Active Directory, Cisco routing — now applying that foundation to Linux, Docker, CI/CD, and cloud automation.

View Projects GitHub Resume

22

Public GitHub repos

244

Contributions this year

10 / 10

Git workflows mastered

3-Phase

AD home lab, built solo

01.

What I'm Building Toward

Most people learn DevOps tools first. I learned the systems underneath them first.

Before Docker or GitHub Actions, I spent months building Windows Server domains, Active Directory environments, and Cisco networks entirely from scratch — not tutorials I copied, but labs I broke and repaired myself. That's the part of DevOps most junior portfolios skip.

Now, as a DevOps Intern at Springer Capital, I'm putting that foundation to work: Linux administration, Git/GitHub workflows, Docker, CI/CD pipelines, AWS deployments, and observability with Grafana Loki and HashiCorp Nomad. I treat every error as the actual lesson, not an obstacle to the lesson.

how-i-work.sh

$ start with fundamentals

→ Linux, networking, Windows Server, Active Directory

$ practice git deliberately

→ branch, stash, squash, resolve conflicts, reflog recover

$ automate delivery

→ GitHub Actions, Docker, AWS EC2, systemd

$ watch the system

→ Grafana Loki, HashiCorp Nomad, logs and alerts

Foundations First

Networking and systems administration before automation tools — so I understand what I'm automating.

Cross-Stack Practice

I rebuild the same small project in a new language each time — Python, then Go, then Node — to learn CI/CD patterns that transfer.

Debug Before Ask

Failed pipelines, wrong flags, fast-forwards that shouldn't have fast-forwarded — I document the error and the fix, not just the success.

Learn In Public

Every lab and project gets written up and shared — 244 contributions and counting over the past year.

02.

Where I Started

This is the part most DevOps-bootcamp portfolios don't have — a systems and networking foundation built by hand, before a single CI/CD pipeline.

3-PHASE HOME LAB

Windows Server & Active Directory

Built a domain from zero on VirtualBox: AD DS, DNS, DHCP, OU design, Group Policy, and a departmental file server with NTFS/SMB permissions and FSRM (quotas, file screening, auto-classification).

CISCO PACKET TRACER

Multi-VLAN Branch Network

Designed an isolated 3-department network on one router using VLAN segmentation, Router-on-a-Stick sub-interfaces, and /26 subnetting of a single /24 block, plus centralized DHCP.

7 ROUTING LABS

From Hubs to Multi-Router Topologies

Hub and switch LANs, static routing across 2–4 routers in triangular and square topologies, and FTP server configuration — tested in both real-time and simulation mode.

SOHO ROUTER ADMIN

Router Administration & Security

Configured PPPoE, DHCP reservation, QoS, NAT, port forwarding, SPI firewall rules, IP/MAC binding, and DDNS on a TP-Link Archer C54 — plus PowerShell-based hardware/driver troubleshooting.

"The real value wasn't running the commands, it was hitting the errors and understanding why — before fixing them."
03.

Tech Arsenal

Linux & Scripting

Ubuntu administration, Bash, PowerShell, file/process/permission management

Version Control

Git, GitHub, GitHub Actions, SSH auth, branching, conflict resolution, reflog

Containers & Orchestration

Docker, HashiCorp Nomad — Kubernetes next

CI/CD & Security

GitHub Actions pipelines, automated testing, CodeQL, secret scanning

Cloud & Deployment

AWS EC2, systemd services, REST APIs — Terraform next

Observability

Grafana Loki, log & cardinality auditing, application monitoring

Networking & Systems

Active Directory, DNS/DHCP/GPO, NTFS/SMB, VLANs, Cisco routing, subnetting

Languages

Python (FastAPI), Go, Node.js/JavaScript, Java, C

04.

Projects

Selected work — each one is a real repository, not a demo screenshot.

DOCKER / NOMAD / GRAFANA LOKI

DevOps Intern Final Assessment

Context

The capstone project for my Springer Capital internship — a full workflow rather than a single tool demo.

What I built

An end-to-end DevOps workflow using Linux, Git, Docker, CI/CD, HashiCorp Nomad for orchestration, and Grafana Loki for centralized log monitoring.

What I learned

How container orchestration and log observability fit together outside of Kubernetes — Nomad as a lighter-weight scheduler.

Docker HashiCorp Nomad Grafana Loki CI/CD
View Project Walkthrough

PYTHON / FASTAPI / GITHUB ACTIONS / AWS EC2

Mini Todo API — Git-to-Deployment CI/CD

Context

My first full Git-to-deployment workflow — the application was the practice environment, not the point.

What I built

A small FastAPI app with a GitHub Actions pipeline for automated tests, dependency and secret checks, then deployment to AWS EC2 managed with systemd.

What I learned

Debugging failed CI runs one at a time until the pipeline went green and the app answered at a live endpoint.

FastAPI GitHub Actions AWS EC2 systemd
View Project Walkthrough

Git & GitHub Mastery — 10 Scenarios

Branching, stash, squash merge, conflict resolution, and reflog recovery, done deliberately.

Enterprise File Server

Windows Server 2022, Active Directory, NTFS/SMB permissions, and FSRM.

QR Code Generator API

A small API built in Go — my first step into a second language.

DevSecOps CI/CD Pipeline

Automated testing, CodeQL scanning, secret scanning, and GitHub Pages deployment.

Also on GitHub: a Go URL shortener (in progress, learning CI/CD to AWS EC2), an Antigravity Tic-Tac-Toe terminal game with Jest tests and CI, and full system-administration lab notes. See all 22 repos →

PROJECT WALKTHROUGHS

How These Actually Work

INTERNSHIP PROJECT

DevOps Intern Final Assessment — Walkthrough

Workflow


Git / Linux

Docker

HashiCorp Nomad

Grafana Loki
Repository

README covers the build steps, the Nomad job configuration, and how logs flow into Loki for querying.

What I'm still learning

Cardinality-aware labeling in Loki, and comparing Nomad's scheduling model against Kubernetes for future projects.

View Repository

PERSONAL PROJECT

Mini Todo API — Walkthrough

Workflow


Git Commit

Pull Request

GitHub Actions

Test + Security Scan

AWS EC2
Repository

README documents the FastAPI app, the pipeline stages, and the systemd unit that keeps it running on EC2.

Real issues I hit

Security-group access, port mapping, and a pipeline that failed silently until I added proper dependency checks.

View Repository
05.

Principles I'm Building Habits Around

Reliability

Health checks, service management, graceful recovery.

Security

Least privilege, secrets out of Git, CodeQL and secret scanning.

Observability

Logs and dashboards that actually explain what happened.

Safe Delivery

Tests and checks before merge, not after something breaks.

Documentation

If it's not written down, the next person re-learns it the hard way.

06.

Journey

DEC 2022 — DEC 2025

B.Sc. in Computer Engineering

Bangladesh University of Business & Technology (BUBT)

NOV 2025 — FEB 2026

Junior Executive

SkyTech Solutions, Uttara — client communication and lead handling

AUG 2026 — PRESENT

DevOps Intern

Springer Capital — Linux, Docker, CI/CD, Nomad, Grafana Loki, cloud fundamentals

WHAT'S NEXT

AWS · Kubernetes · Terraform · DevSecOps

BUILD · BREAK · FIX · REPEAT

Still early. Still building. Still documenting all of it.

I'm growing into a well-rounded DevOps Engineer by earning each layer through real projects — networking and systems first, automation and cloud next.

GitHub Resume