i.ZAHIR
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Skills & Expertise

3+ years of experience across the full stack — from Spring Boot microservices to Kubernetes clusters. Always learning, always shipping.

Backend Development

Production-grade APIs and services with Spring Boot, Node.js, and ASP.NET

Java

5 years

Core Java, OOP, design patterns, Jakarta EE, concurrency and JVM optimization

Expert90%

Spring Boot

3 years

Building production-grade Java microservices and REST APIs — Spring Security, Spring Data, JUnit

Expert90%

ASP.NET Core

2 years

Web APIs and enterprise applications with C#, NHibernate, and the .NET ecosystem

Advanced75%

Node.js

3 years

Scalable server-side applications, REST APIs, and real-time services with NestJS/Express

Advanced75%

Laravel

2 years

Full-stack PHP applications, REST APIs, and training management platforms

Advanced75%

NestJS

1 year

Building modular and scalable server-side applications with TypeScript and decorators

Intermediate60%

PostgreSQL

3 years

Relational database design, query optimization, indexing, and migrations

Advanced75%

MongoDB

3 years

Document-oriented storage, aggregation pipelines, and spatial data with MongoDB Atlas

Advanced75%

Frontend Development

Building responsive, interactive UIs with React, Next.js, and TypeScript

React

3 years

Building component-based UIs with hooks, context, and state management

Advanced75%

Next.js

4 years

Full-stack applications with server components, SSR, and API routes

Advanced75%

TypeScript

4 years

Type-safe development with advanced type patterns and generics

Expert90%

Angular

3 years

Enterprise-grade SPA development with RxJS and NgRx state management

Expert90%

Tailwind CSS

3 years

Utility-first CSS for rapid UI development and design systems

Expert90%

DevOps & Cloud

Containerization, orchestration, CI/CD, and cloud infrastructure

Docker

4 years

Containerization, multi-stage builds, Docker Compose, and image optimization

Expert90%

Kubernetes

2 years

Container orchestration, deployments, Helm charts, and cluster management

Advanced75%

VPS & Cloud Services

2 years

Managing virtual private servers, cloud hosting, and deployment automation

Intermediate60%

CI/CD

3 years

GitHub Actions, Jenkins, automated pipelines, and release automation

Advanced75%

Terraform

1 year

Infrastructure as code for AWS and cloud resource provisioning

Intermediate60%

Git & GitHub

5 years

Version control, branching strategies, code review, and collaboration

Expert90%

Linux

5 years

Shell scripting, server administration, and system troubleshooting

Advanced75%

Architecture & Emerging Tech

Microservices design, AI/ML integration, and blockchain/Web3 development

Microservices

1 year

Designing distributed systems with event-driven communication — Kafka, API Gateway, service discovery

Intermediate60%

Neo4j

1 year

Graph database modeling for complex relationship data — used in transit and social network projects

Intermediate60%

Blockchain / Solidity

1 year

Smart contract development with Solidity, DApp architecture, and the Ethereum ecosystem

Intermediate60%

React Native

1 year

Cross-platform mobile app development — iOS & Android from a single JavaScript codebase

Intermediate60%

Elsa Workflow

1 year

Workflow automation and orchestration for .NET applications — used in enterprise solutions

Intermediate60%

Proficiency Levels

How I measure my expertise

Expert

Deep, production-tested expertise consistently applied in complex real-world projects.

Advanced

Strong production experience with solid mastery of complex use cases and system design.

Intermediate

Solid foundational knowledge with active professional application and ongoing growth.