Zain Khalid.

Hi, I'm Zain Khalid. I build reliable software.

Full‑stack software engineer specializing in scalable apps, clean APIs and engaging user experiences.

View Projects Resume PDF

zsh — portfolio

~ $ whoami

Zain Khalid

~ $ ./hello_world.sh

Hello, World! Welcome to my portfolio. Feel free to look around or drop a message. Have a great day :)

~ $ cat education.txt

Bachelor of Science in Electrical Engineering 2012-2016

~ $ cat experience.txt

Software Engineer ~ 8 years of experience

~ $ grep -i "programming" skills.txt

Java Spring Boot php laravel

~ $ exit

~ $ ▍

Projects

Here are some of the projects I've build and worked on.

Experience

Seamless Distribution Systems

Software Engineer — Backend

Lahore, PK

Oct 2020 — Aug 2025
- Swedish fintech, building software for telcos to manage agent networks & sales.
- Built and maintained Java/Spring Boot mobile APIs powering core features.
- Integrated external REST & SOAP APIs to extend app functionality.
- Diagnosed production issues via logs and root‑cause analysis.
- Contributed to migration from monolith to microservices.
- Implemented scheduled jobs with Spring; added JUnit test coverage.
- Deployed on CentOS via RPM & Docker.
- Built a React dashboard for CRUD and operational tooling.
Java Spring Boot Nginx MariaDB Docker Elasticsearch Logstash Kafka React Groovy
Upwork / Fiverr

Freelancer — Web Developer

Remote

Feb 2018 — Oct 2020
- Delivered full‑stack web solutions from concept to production.
- Built a Laravel app for a US healthcare company, end‑to‑end.
- Improved Dotila (Mexian SaaS platform) performance 50s → 4s via DB indexing & SSL.
PHP Laravel AWS (EC2, S3) HTML CSS JavaScript Vue Redis
Heuristix

Software Engineer — Web Developer

Lahore, PK

Nov 2017 — Feb 2018
- Project‑based startup delivering web development services.
- Built an Airbnb‑style lodging app from scratch using Laravel.
- Integrated Google OAuth, Maps, Autocomplete for onboarding & search.
- Extended a CodeIgniter admin portal with PDF report generation.
PHP Laravel HTML CSS JavaScript jQuery

Clients

A few companies I've collaborated with during my tenure at Seamless Distribution Systems.

Let's connect

Ready to collaborate, or just want to talk? My inbox is always open.

Email me Resume PDF