Open to Opportunities — Backend Engineer

I build backend systems
that solve real problems.

Sibghatullah Laghari · Java · Spring Boot · REST APIs · Security

Backend engineer specializing in authentication, API design, and database architecture. I ship Spring Boot services with JWT security, RBAC, and clean layered code — focused on software that works in production, not demos.

5+
Backend Systems
10+
REST APIs Built
1+
Yr Building
3.8
CGPA
BackendEngineer.java
// Production backend profile
 
public class BackendEngineer {
  String name = "Sibghatullah Laghari";
  String role = "Backend Engineer";
  String focus = "APIs + Security";
  boolean openSource = true;
 
  String[] stack = {
    "Spring Boot", "JWT", "MySQL"
  };
}
 
$ mvn spring-boot:run 
About

Engineering-focused. Product-minded.

I approach software as an engineer — understand the problem, design the system, ship the solution.

I build backend systems that solve real problems — authentication flows, data models, and APIs that other engineers can integrate with confidence.

My work centers on Java and Spring Boot: layered architecture, secure endpoints, and relational databases designed for maintainability.

I learn by shipping. Every project pushes me deeper into security, API design, and the engineering decisions that make software reliable at scale.

Open source and collaboration are part of how I grow — I contribute where I can, review code, and build software meant to be used.

At a Glance

Role
Backend Engineer
Education
BE Software Engineering · CGPA 3.8
University
Mehran University of Engineering & Technology
Location
Sindh, Pakistan
Availability
Internship · Full-Time · Freelance
View Experience
Case Studies

Systems I've Built

Engineering depth over UI polish — each project documents problem, architecture, and what I learned.

Featured Completed

CCTRS Carbon Contribution & Reward Tracking System

GitHub

Organizations need a reliable way to log carbon-reducing activities, score contributions, and issue rewards — with different access levels for users and administrators.

Solution

Built a Spring Boot backend with REST endpoints for activity logging, score calculation, and reward issuance. JWT-secured routes enforce USER vs ADMIN permissions across all operations.

Architecture

Layered design: REST controllers → service layer (business rules) → JPA repositories → MySQL. Stateless auth via JWT filter chain in Spring Security.

Key Features
  • Multi-role API access (USER, ADMIN)
  • Contribution logging and reward calculation engine
  • Admin dashboard endpoints for oversight
  • Documented REST API for client integration
Technical Challenge

Balancing reward calculation logic in the service layer while keeping controllers thin and repositories focused on persistence.

Biggest Learning

How to model domain rules in services, protect routes by role, and design APIs that stay consistent as features grow.

Impact

End-to-end backend system demonstrating authentication, RBAC, and business logic in a real tracking domain.

JavaSpring BootSpring SecurityJWTMySQLJPA/HibernateMavenREST APIs
Featured Backend API Completed

MediConnect Healthcare Backend API Platform

GitHub

Healthcare workflows need a secure backend that manages users, roles, and sensitive data — without coupling business logic to any single frontend.

Solution

Designed and built a backend-only Spring Boot service with REST endpoints, role-based access, and a relational schema shaped around core healthcare entities and workflows.

Architecture

Client → REST API → Spring Security (JWT + RBAC) → Service Layer → JPA/Hibernate → MySQL. API-first design with clear request/response contracts.

Key Features
  • REST API with role-protected endpoints
  • JWT authentication and authorization flow
  • Normalized database schema for core entities
  • Postman-tested endpoint documentation
Technical Challenge

Designing secure data flow and access boundaries for sensitive domain data while keeping the API predictable for future clients.

Biggest Learning

Backend-first product thinking — security, schema design, and API contracts matter as much as feature coverage when there is no frontend in scope.

Impact

Demonstrates ability to deliver a complete backend platform: API design, security, and database architecture without relying on UI screenshots.

Client → REST API → Spring Security
↓
Service Layer → JPA / Hibernate → MySQL
JavaSpring BootSpring SecurityJWTRBACMySQLJPAREST APIsPostman
Featured Completed

ULSM User Login & Service Management API

GitHub

Applications need a dependable user management backend — registration, login, profile updates, and admin control — with secure, token-based access to protected routes.

Solution

Implemented a production-style user management API covering the full auth lifecycle: BCrypt registration, JWT login, token-protected routes, and role-specific capabilities.

Architecture

Standard Spring Boot layering with a dedicated security config, UserDetailsService integration, and JPA-backed user persistence in MySQL.

Key Features
  • User registration with password hashing
  • JWT issuance and stateless session management
  • Profile management for authenticated users
  • ADMIN endpoints for user oversight
Technical Challenge

Configuring Spring Security filter order and ensuring protected vs public routes behave correctly across all HTTP methods.

Biggest Learning

Deep understanding of authentication vs authorization and how to structure security config that stays maintainable as endpoints grow.

Impact

Reusable auth foundation applicable to any product needing secure user management and RBAC.

Spring BootSpring SecurityJWTBCryptMySQLJPAMaven
View All Projects
Currently Building

Flagship Project

Reserved for the next major backend system — microservices architecture, advanced API design, or open source contribution at scale.

System DesignScalable APIsOpen Source
Tech Stack

Tools & Technologies

Organized by what I use daily, what secures my APIs, and what I'm actively learning.

Core Backend

Primary stack for building production-style services

  • Java
  • Spring Boot
  • Spring Security
  • REST APIs
  • JPA
  • Hibernate
  • MySQL

Authentication & Security

Identity, access control, and secure API patterns

  • JWT
  • RBAC
  • OAuth2
  • BCrypt

Tools

Day-to-day engineering workflow

  • Git
  • GitHub
  • Maven
  • Postman
  • Linux

Currently Exploring

Growing into — honest progression, not claimed mastery

  • Docker
  • Microservices
  • Cloud
  • System Design
  • Open Source
Collaboration

Open Source & Collaboration

I build in public and collaborate with other engineers on backend systems, API design, and useful open source tools.

View GitHub Profile
  • Contributing to and maintaining backend projects on GitHub
  • Open to pair programming, code reviews, and architecture discussions
  • Interested in projects where clean APIs and solid engineering matter
  • Always looking to collaborate on software that solves real user problems
Credentials

Certifications

Professional certifications with verifiable credentials — links added as they become available.

Certification cards will appear here.

Each card supports name, provider, skills learned, and a clickable verification URL.

Why interview me?

I build real backend systems with Java and Spring Boot. My projects prove API design, security, and database skills. I'm ready to contribute from day one — internship, junior role, or freelance.

Get In Touch View Resume