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shakib@portfolio ~ $

Hello, I'm

Shakib Haris

Software & Systems Engineer

"I design and operate secure, high-performance systems—from code to clusters."

Get in touch Get in touch
8+ Years Enterprise Experience 70+ Features Engineered 49% Infrastructure Cost Optimization
.NETKubernetesDevOpsInfrastructureC#DockerPostgreSQLLinux
Scroll to explore
shakib@portfolio ~ $
Shakib Haris

I build systems that stay fast, stay up, and stay secure

Code meets infrastructure. For 8+ years I've built .NET backends that hold up under load, run Kubernetes on bare metal, and automated deployments until they're boring. I've cut costs by 49%, hardened networks, and built observability that catches fires before they spread. I optimize for the long game.

$ neofetch --about-me
Location
Dhaka, Bangladesh
Focus
Infrastructure & DevOps
Languages
C#, F#, Python
Tools
Kubernetes, Ansible, Docker
$ cat ~/.interests
⚡
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 ~ $
Jan 2023 - Present

Infrastructure Engineer

Chaldal PLC

Own the on-prem Kubernetes platform end-to-end — from bare metal to production workloads — with a focus on uptime, security, and operational simplicity.

  • 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 PLC

Took ownership of high-impact delivery projects — from building a last-mile routing system to measurably improving inventory performance.

  • 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 PLC

Shipped dozens of customer-facing features with production accountability, while mentoring teammates and raising the bar on engineering quality.

  • 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 PLC

Hit the ground running — delivered 30+ features in inventory workflows, earning trust through consistent, high-quality work.

  • 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 real-world ERP and university management systems from scratch — owning the full stack from data modeling to deployment.

  • 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 ~ $

.NET Development

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

DevOps Engineering

Shipping safer, faster: CI/CD, IaC, release automation, and pragmatic DevSecOps practices that reduce risk while increasing delivery velocity.

// 6 projects

Microservices Architecture

Designing service boundaries, contracts, and operational patterns (observability, resiliency, failure isolation) so distributed systems stay debuggable and stable.

// 4 projects

IT Infrastructure

Designing and operating secure infrastructure: networks, identity, compute, storage, and operational processes built for uptime and auditability.

// 8 projects

Security & SIEM

Implementing detection, logging, and response workflows—turning security signals into actionable alerts and measurable controls.

// 2 projects

Containerization

Containerizing and orchestrating workloads with Docker/Kubernetes—secure defaults, sensible resource management, and operational visibility from day one.

// 7 projects
shakib@portfolio ~ $
~/skills
├──
📂 development (4)
C# C#
info
C#
Primary language for enterprise applications, APIs, and backend services. Expert in async patterns, LINQ, and .NET ecosystem.
5+ years · Expert
F# F#
info
F#
Functional-first language for data processing, domain modeling, and type-safe applications. Used for complex business logic.
3+ years · Advanced
Python Python
info
Python
Automation scripts, DevOps tooling, data processing, and rapid prototyping. Proficient with Flask, FastAPI, and scripting.
3+ years · Advanced
.NET / ASP.NET .NET / ASP.NET
info
.NET / ASP.NET
Full-stack framework for web APIs, microservices, and enterprise applications. Expert in EF Core, Identity, and middleware.
5+ years · Expert
├──
📂 operating-systems (2)
Windows Server Windows Server
info
Windows Server
Enterprise administration including AD DS, DNS, DHCP, Group Policy, failover clustering, and Windows Admin Center.
5+ years · Expert
Ubuntu / Debian Ubuntu / Debian
info
Ubuntu / Debian
Server administration, systemd services, package management, shell scripting, and security hardening for production systems.
5+ years · Expert
├──
📂 containers (4)
Docker Docker
info
Docker
Container builds, multi-stage Dockerfiles, Docker Compose, networking, volumes, and production optimization.
4+ years · Expert
Kubernetes Kubernetes
info
Kubernetes
Cluster deployment, Helm charts, Ingress controllers, RBAC, persistent storage, and GitOps workflows with ArgoCD.
3+ years · Advanced
Rancher Rancher
info
Rancher
Multi-cluster Kubernetes management, RKE2 deployments, user management, and centralized cluster operations.
3+ years · Advanced
Harbor Harbor
info
Harbor
Private container registry with vulnerability scanning, image signing, replication policies, and access control.
3+ years · Advanced
├──
📂 virtualization (3)
Hyper-V Hyper-V
info
Hyper-V
Windows virtualization with live migration, failover clustering, replica, and System Center Virtual Machine Manager.
4+ years · Expert
QEMU / KVM QEMU / KVM
info
QEMU / KVM
Linux virtualization with libvirt, virt-manager, GPU passthrough, and performance tuning for production VMs.
3+ years · Advanced
Xen Orchestra Xen Orchestra
info
Xen Orchestra
XCP-ng management platform for VM orchestration, backup/restore, continuous replication, and pool management.
2+ years · Advanced
├──
📂 infrastructure (2)
Ansible Ansible
info
Ansible
Infrastructure automation with playbooks, roles, inventory management, and AWX/Tower for enterprise deployments.
3+ years · Advanced
Private Cloud Private Cloud
info
Private Cloud
Design and deployment of on-premise cloud infrastructure with compute, storage, and networking integration.
4+ years · Expert
├──
📂 data-storage (4)
MS SQL Server MS SQL Server
info
MS SQL Server
Enterprise database administration, Always On availability groups, performance tuning, and SSIS/SSRS integration.
5+ years · Expert
PostgreSQL PostgreSQL
info
PostgreSQL
Open-source database with replication, partitioning, JSON support, and extensions like PostGIS and TimescaleDB.
3+ years · Advanced
Redis Redis
info
Redis
In-memory caching, session storage, pub/sub messaging, and Redis Cluster for high-availability deployments.
2+ years · Proficient
SeaweedFS SeaweedFS
info
SeaweedFS
Distributed object storage with S3 API compatibility, replication, erasure coding, and tiered storage.
2+ years · Advanced
├──
📂 observability (4)
Prometheus Prometheus
info
Prometheus
Metrics collection, PromQL queries, alerting rules, service discovery, and federation for large-scale monitoring.
3+ years · Advanced
Grafana Grafana
info
Grafana
Dashboard creation, data source integration, alerting, and Grafana Loki for log aggregation and querying.
3+ years · Advanced
Elastic Stack Elastic Stack
info
Elastic Stack
Elasticsearch, Logstash, Kibana for centralized logging, full-text search, and analytics dashboards.
2+ years · Advanced
CheckMK CheckMK
info
CheckMK
Infrastructure monitoring with agent-based checks, SNMP, custom plugins, and automated host discovery.
2+ years · Advanced
├──
📂 networking (6)
TCP/IP & DNS TCP/IP & DNS
info
TCP/IP & DNS
Network design, subnetting, VLANs, routing protocols, DNS administration, and traffic analysis with Wireshark.
5+ years · Expert
MikroTik MikroTik
info
MikroTik
RouterOS configuration for enterprise routing, VLANs, firewalls, VPNs, QoS, and network monitoring.
5+ years · Expert
OpenVPN OpenVPN
info
OpenVPN
Site-to-site and remote access VPN with certificate management, split tunneling, and high-availability setups.
3+ years · Advanced
WireGuard WireGuard
info
WireGuard
Modern VPN protocol with minimal configuration, excellent performance, and integration with various platforms.
2+ years · Advanced
Nginx Nginx
info
Nginx
Reverse proxy, load balancing, SSL termination, rate limiting, and caching for high-traffic applications.
4+ years · Expert
HAProxy HAProxy
info
HAProxy
TCP/HTTP load balancer with health checks, sticky sessions, ACLs, and high-availability configurations.
3+ years · Advanced
├──
📂 identity-security (5)
Active Directory Active Directory
info
Active Directory
Domain services, Group Policy, federation with ADFS, Azure AD Connect, and multi-forest architectures.
5+ years · Expert
Zitadel Zitadel
info
Zitadel
Modern identity management with OIDC/OAuth2, multi-tenancy, passwordless auth, and self-hosted deployments.
2+ years · Advanced
SSSD SSSD
info
SSSD
Linux integration with Active Directory, Kerberos authentication, sudo rules, and centralized access control.
3+ years · Advanced
PKI PKI
info
PKI
Certificate authority management, TLS/SSL certificates, code signing, and automated cert renewal with ACME.
3+ years · Advanced
SIEM / Security SIEM / Security
info
SIEM / Security
Security monitoring, log correlation, threat detection, incident response, and compliance reporting.
2+ years · Advanced
├──
📂 cloud-devops (5)
Microsoft Azure Microsoft Azure
info
Microsoft Azure
Azure VMs, AKS, App Services, Azure DevOps, networking, and hybrid cloud integration with on-premise.
4+ years · Advanced
Azure DevOps Azure DevOps
info
Azure DevOps
Build and release automation with Azure DevOps, GitHub Actions, GitLab CI, and ArgoCD for GitOps.
3+ years · Advanced
GitHub GitHub
info
GitHub
Version control, pull requests, code reviews, branch protection, GitHub Packages, and repository management.
5+ years · Expert
GitHub Actions GitHub Actions
info
GitHub Actions
Workflow automation, custom actions, matrix builds, self-hosted runners, and reusable workflows.
3+ years · Advanced
AI/ML Ops AI/ML Ops
info
AI/ML Ops
Model deployment pipelines, GPU infrastructure, inference serving, and integration with LLM platforms.
1+ years · Proficient
└──
📂 self-hosted (3)
Nextcloud Nextcloud
info
Nextcloud
Self-hosted collaboration with file sync, calendars, contacts, Talk video calls, and Office integration.
2+ years · Advanced
OwnCloud OwnCloud
info
OwnCloud
Enterprise file sync and share with external storage backends, LDAP integration, and audit logging.
2+ years · Advanced
OpenStreetMap OpenStreetMap
info
OpenStreetMap
Self-hosted tile server, Nominatim geocoding, routing engines, and custom map styling with vector tiles.
1+ years · Proficient
Total: 41 technologies Categories: 11 domains Learning: HCI, Terraform, ITSP
shakib@portfolio ~ $
Chokidar screenshot

Chokidar

A multi-tenant monitoring platform for networks, services, and hosts — built with .NET 10, Next.js 16, PostgreSQL, and ClickHouse. Features include probe-based health checks, smart alerting, time-series analytics, and multi-tenant isolation.

.NET 10Next.js 16PostgreSQLClickHouseDockerMulti-TenantAlertingTime-Series
SportsVerse screenshot

SportsVerse

A comprehensive sports e-commerce platform built with Next.js and PostgreSQL, featuring a modern UI, secure payments, and seamless shipping integration with Pathao and UddoktaPay.

ReactNext.jsPostgreSQLSEOPaymentsShippingPathaoUddoktaPayOAuth
Samim's Tutorial screenshot

Samim's Tutorial

An online education platform built with Next.js and ASP.NET Core, featuring a modern UI, secure payments, and seamless integration with Zitadel for authentication and authorization.

ReactNext.jsASP.NET CorePostgreSQLEducationEdTechZitadelOIDCJWT

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
Khata: Modern ERP Solution screenshot

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 screenshot

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
shakib@portfolio ~ $

Let's build something production-grade.

If you need a senior engineer who can design, ship, and operate reliable systems end-to-end, let's talk.

Dhaka, Bangladesh

$ exit 0

shakib@portfolio $