Portrait of Md. Sultan Shahjalal
Open to Networking & IT Support roles

Md. Sultan Shahjalal

Motivated Computer & Communication Engineering graduate with hands-on experience in network design, routing & switching, VLAN, ACL, DHCP and Level-1/2 troubleshooting. Passionate about building reliable, secure network infrastructure.

CCNA Certified B.Sc. in CCE Coursera Network Security & SOC
About Me

Networking is my craft

A quick snapshot of who I am, what I work with and where I am heading.

Career Objective

I am a recent Computer and Communication Engineering graduate from International Islamic University Chittagong, currently working as a Data Operator at YiXin Bangladesh Company Limited in the BEPZA Economic Zone, Mirsarai. My core passion lies in networking and IT infrastructure — designing and simulating enterprise topologies with Cisco Packet Tracer, configuring OSPF, RIP and EIGRP routing, and resolving connectivity, IP-conflict and routing incidents at Level-1 and Level-2.

I hold the Cisco Certified Network Associate (CCNA) credential along with Coursera certifications in Network Security and Security Operations Center (SOC) operations. I am committed to continuous learning and to building a successful long-term career in the IT and networking field.

Location

Sitakunda, Chattogram, Bangladesh

Degree

Languages

Bangla (Native), English (Professional)

Focus

Skills & Tools

What I work with

From routing protocols to programming languages — the toolkit I use to build and troubleshoot.

Networking

Routing — OSPF / RIP / EIGRP 88%
Switching & VLANs 85%
Cisco Packet Tracer 90%
ACL, DHCP & NAT 82%
L1/L2 Troubleshooting 86%
IP Addressing & Subnetting 84%

Programming

C 75%
Python 72%
JavaScript 68%
PHP 62%
HTML & CSS 80%

Office & Productivity

MS Word / Excel / PowerPoint 85%
Google Sheet / Google Form 82%

Databases

MySQL 74%
Oracle (familiar) 58%
My Journey

Experience & education

A timeline of the roles, studies and certifications that shaped my networking path.

Data Operator

Aug 2026 — Present

YiXin Bangladesh Company Limited — BEPZA Economic Zone, Mirsarai, Chattogram

Responsible for accurate entry, processing and management of operational data, generating reports and supporting day-to-day administrative workflows with MS Office and Google Workspace tools.

Network Design & Troubleshooting (Labs & Projects)

2022 — Present

International Islamic University Chittagong — CCE Department

Designed and simulated enterprise networks in Cisco Packet Tracer. Configured OSPF / RIP / EIGRP routing, VLANs, ACLs and DHCP. Performed Level-1 and Level-2 troubleshooting for connectivity issues, hardware/software incidents, IP conflicts and routing problems.

Things I have built

Projects & configurations

Selected labs, setups and builds — from packet-level practice to full network designs.

Featured Networking

Campus Network Design & Simulation

Designed a multi-building campus network in Cisco Packet Tracer with a hierarchical core / distribution / access architecture, VLAN segmentation, redundant uplinks and DHCP scopes for each department.

Cisco Packet Tracer VLAN OSPF DHCP Subnetting
Networking

Inter-VLAN Routing & Switching Lab

Built a switched LAN with 802.1Q trunk links, router-on-a-stick and Layer-3 switching to route traffic between departmental VLANs, then validated end-to-end connectivity.

Switching 802.1Q Inter-VLAN Routing Cisco IOS
Featured Security

ACL-Based Network Security Lab

Implemented standard and extended access control lists on edge routers to filter traffic between departments, restrict management access and harden the network against unauthorized flows.

ACL Network Security Cisco IOS
Networking

Multi-Area OSPF Enterprise Topology

Created a multi-area OSPF topology with route summarization and stub areas, verified adjacencies and practiced systematic troubleshooting of neighbor and routing-table issues.

OSPF Routing Packet Tracer Troubleshooting
Networking

Small-Office LAN with DHCP & NAT

Designed a small-office network with DHCP address management, NAT for shared internet access and a structured IP addressing plan ready for growth.

DHCP NAT LAN Design IP Addressing
Featured Web

This Portfolio Website

A minimalist glassmorphism portfolio with dark mode, scroll animations, an admin dashboard for editing every section, a contact form and live GitHub contribution stats.

Next.js 16 TypeScript Tailwind CSS Prisma
Open Source

GitHub activity

Live contribution statistics straight from GitHub.

Get in touch

Let's build something reliable

Have a network to design, an office to set up, or a role to discuss? My inbox is always open.

Email

mdsultanja516@gmail.com

Phone

+880 18445-82459

Location

Kumira, Sitakunda, Chattogram, Bangladesh

Profiles

Open to networking & IT support roles