r
real_coder20

Saad Ullah

@real_coder20
4.8(11)

Senior Full Stack Web and Mobile App Developer

Pakistan
English, Urdu, Russian
About me
I am a Senior Full Stack Developer with 5.5+ years of professional experience building scalable web and mobile applications. I specialize in Ruby on Rails, React, and React Native, delivering high-performance, secure, and production-ready solutions. I have worked on real-world applications in FinTech, Fitness, Logistics, Healthcare, and eCommerce industries. I focus on writing clean, maintainable code and building systems that scale. Whether you need a new application, API development, performance optimization, or fixing an existing project. I can help. Let’s build something great together.... Read more

Skills

r
real_coder20
Saad Ullah
Offline • 

See my services

Cross-Platform Development
I will do android app and ios app mobile app development using react native cli expo
5.0(8)
From$120 / projectMore details
Full Stack Web Applications
I will do any task or project of java html CSS servlet ajax javascrip jquery
5.0(1)
From$15 / projectMore details

Portfolio

Work experience

Sr Software Engineer/Sr Full Stack Developer | MTBC CareCloud

Devsinc • Full-time

May 2020 - Present • 6 yrs

At Devsinc, I worked as a Software Engineer, contributing to full-stack web applications using Ruby on Rails and ReactJS. I developed and maintained scalable backend systems following MVC architecture and built RESTful APIs for frontend and third-party integrations. - I worked on a Shopify embedded app (Recurate) that automated product resale workflows and contributed to a Lead Management System to track sales pipelines, multi-stage processes, and commission structures. - I also implemented dynamic frontend features using ReactJS, JavaScript, and AJAX, optimized databases (PostgreSQL/MySQL), fixed bugs in legacy code, and collaborated with cross-functional teams in agile sprints. Tech Stack: Ruby on Rails, ReactJS, Shopify API, JavaScript, AJAX, PostgreSQL, MySQL, Git.

11 Reviews
4.8

(10)
(0)
(1)
(0)
(0)
Rating Breakdown
  • Seller communication level
    4.9
  • Recommend to a friend
    4.8
  • Service as described
    4.8
1-5 out of 11 Reviews
Sort By
Most relevant
    A

    aloe_drink

    US

    United States

    5

    Fast, efficient, highly reccommend!

    gig

    Cross-Platform Development

    Helpful?
    Yes
    No
    B
    image-docs

    borishermann

    DE

    Germany

    5

    very experienced coder, did everything as expected

    gig

    Cross-Platform Development

    Helpful?
    Yes
    No
    N
    image-docs

    nicokraemer

    DE

    Germany

    5

    Very friendly and delivered great work in time!

    gig

    Cross-Platform Development

    Helpful?
    Yes
    No
    B

    benatkins107

    Repeat Client

    IE

    Ireland

    5

    my project was complete and i am very satisfied. there was good communication throughtout and im very happy with the work i received 5/5

    gig

    Cross-Platform Development

    Helpful?
    Yes
    No
    F

    faris_49

    SA

    Saudi Arabia

    5

    Nice person. Cooperative and supportive. Willing to work again in future

    gig

    Cross-Platform Development

    Helpful?
    Yes
    No