shakib@portfolio
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Shakib Haris
Software & Systems Engineer
"I design and operate secure, high-performance systems—from code to clusters."
5+
Years Enterprise Experience
49%
Infrastructure Cost Optimization
shakib@portfolio
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cat about.md
I build systems that stay fast, stay up, and stay secure
Senior Software & Systems Engineer with 5+ years of enterprise experience building secure, reliable, and highly automated platforms. I ship backend systems in .NET, design and operate Kubernetes-based infrastructure, and automate with clean IaC and reliable CI/CD. Comfortable deep in incident response, performance profiling, and network/security hardening—then turning those lessons into simpler architectures, stronger runbooks, and observable systems. I take ownership end-to-end (design → build → operate) and optimize for reliability, performance, and long-term maintainability.
Location
Dhaka, Bangladesh
Focus
Infrastructure & DevOps
Tools
Kubernetes, Ansible, Docker
⚡
Latency & Reliability
Profiling hot paths, eliminating bottlenecks, and engineering for predictable performance under load
🔒
Security by Design
Defense-in-depth: least privilege, secure defaults, hardening, and observable security controls
🌐
Open Systems Mindset
Pragmatic OSS usage and contribution—choosing tools based on reliability, maintainability, and fit
📚
Systems Thinking
Always sharpening fundamentals: distributed systems, observability, failure modes, and operational excellence
>
"The best code is no code at all. The second best is code that's so simple, it obviously has no bugs."
— Unknown wisdom
shakib@portfolio
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$
tree --experience
Jan 2023 - Present
Infrastructure Engineer
Chaldal Limited
- Designed and operated a highly-available on-prem Kubernetes platform with production-grade reliability
- Hardened network and access controls with pragmatic security architecture and compliance-minded defaults
- Built observability and alerting that reduced MTTR and improved on-call signal quality
- Automated infrastructure delivery with IaC + CI/CD, enabling safe, repeatable changes at scale
- Enabled ML/AI workloads on Kubernetes with dependable scheduling, storage, and operational guardrails
k3srancherpfsensewireguardelasticansible
Jan 2022 - Dec 2022
Software Engineer IV
Chaldal Limited
- Delivered a last-mile routing system that improved delivery efficiency and operational decision-making
- Improved inventory system performance by 20% through profiling, query optimization, and caching strategy
- Led cross-team execution by aligning requirements, managing trade-offs, and unblocking delivery
optimizationvalhallaopen-street-mapscaching
Jan 2021 - Dec 2021
Software Engineer III
Chaldal Limited
- Shipped 40+ customer-facing features with instrumentation, performance monitoring, and production accountability
- Mentored junior engineers through pairing, design guidance, and actionable code reviews
- Raised engineering quality by improving review practices, standards, and release safety
c#asp-net-coreef-coresql-server
Apr 2020 - Dec 2020
Software Engineer II
Chaldal Limited
- Delivered 30+ features in inventory workflows with a focus on correctness, clarity, and maintainability
- Improved system efficiency by reducing expensive operations and tightening critical code paths
c#asp-net-coresql-server
Jan 2018 - Dec 2019
Fullstack Developer
Freelance
- Built and delivered end-to-end ERP solutions—data modeling, workflows, reporting, and deployment
- Designed and implemented a University Management System with role-based access and operational reporting
.netmongodbwinformssql-server
2015 - 2019
Bachelor of Science Computer Science & Engineering
East West University
- IEEE Published: Blockchain-Based e-Recruitment Platform
- IEEE Published: Fake News Detection using Blockchain
blockchainsmart-contractieee
shakib@portfolio
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$
systemctl list-services --active
Building high-throughput APIs and backend systems with C#/.NET (ASP.NET Core, EF Core), designed for maintainability, observability, and real-world production load.
// 9 projects
Shipping safer, faster: CI/CD, IaC, release automation, and pragmatic DevSecOps practices that reduce risk while increasing delivery velocity.
// 6 projects
Designing service boundaries, contracts, and operational patterns (observability, resiliency, failure isolation) so distributed systems stay debuggable and stable.
// 4 projects
Designing and operating secure infrastructure: networks, identity, compute, storage, and operational processes built for uptime and auditability.
// 8 projects
Implementing detection, logging, and response workflows—turning security signals into actionable alerts and measurable controls.
// 2 projects
Containerizing and orchestrating workloads with Docker/Kubernetes—secure defaults, sensible resource management, and operational visibility from day one.
// 7 projects
shakib@portfolio
~
$
tree ~/skills --level 2
~/skills
C#
F#
Python
.NET / ASP.NET
Windows Server
Ubuntu / Debian
Docker
Kubernetes
Rancher
Harbor
Hyper-V
QEMU / KVM
Xen Orchestra
Ansible
Private Cloud
MS SQL Server
PostgreSQL
Redis
SeaweedFS
Prometheus
Grafana
Elastic Stack
CheckMK
TCP/IP & DNS
MikroTik
OpenVPN
WireGuard
Nginx
HAProxy
Active Directory
Zitadel
SSSD
PKI
SIEM / Security
Microsoft Azure
Azure DevOps
GitHub
GitHub Actions
AI/ML Ops
Nextcloud
OwnCloud
OpenStreetMap
Total: 41 technologies
Categories: 11 domains
Learning: HCI, Terraform, ITSP
shakib@portfolio
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$
ls -la ./projects/
High-Availability Kubernetes Cluster
A production-grade Kubernetes platform engineered for high availability, predictable operations, and strong security posture—built to run critical workloads with confidence.
KubernetesLinuxNetworkSecurity
Logging & Observability System
End-to-end observability (metrics, logs, dashboards, alerting) with actionable signals that improve MTTR and enable confident, data-driven operations.
ElasticGrafanaPrometheusCheckMK
Multi-Region Private Cloud Network
Resilient multi-site private cloud networking using WireGuard/IPsec and dynamic routing (OSPF/BGP/Anycast) to deliver fault-tolerant connectivity and clean segmentation.
MikroTikWireGuardBGPOSPF
Distributed Storage System
Distributed storage designed for durability and availability, with operational tooling and replication strategies that fit enterprise reliability requirements.
Distributed StorageReliabilityScalability
AI/ML Infrastructure
Kubernetes-based ML infrastructure with GPU scheduling and deployment automation—built to keep training and inference pipelines reliable and repeatable.
AI/MLGPUKubernetesPyTorch
Network Monitoring System
Custom monitoring with Python + CheckMK to track network health, performance, and anomalies—so issues are detected early and resolved faster.
PythonCheckMKMikroTik
Network Configuration Management
Network configuration management with audit trails and approvals—standardizing change control across MikroTik/Juniper/Cisco and reducing configuration drift.
C#MikroTikJuniperCisco
Pathao Courier NopCommerce Plugin
Production-ready integration plugin for Pathao Courier in NopCommerce—focused on reliability, clean integration points, and maintainable implementation.
.NETC#NopCommerce
Khata: Modern ERP Solution
A modern ERP platform for small businesses—inventory, accounting, and customer workflows designed with practicality, correctness, and extensibility in mind.
.NETC#ASP.NET CoreEF Core
Scroll: Product Magazine
A polished product showcase platform with strong content modeling and performance-minded delivery—built for clean UX and easy iteration.
ASP.NET CoreEF CorePostgres
BD Tax Calc
A tax calculator built with functional-first design in F#—lean, testable, and precise business logic with a clean architecture mindset.
.NETF#SAFE Stack
