m
mani4677

Muhammad Usman

@mani4677
5.0(22)

Senior Software Engineer

Pakistan
English, Urdu
About me
Full Stack Developer with 6+ years of experience building scalable SaaS, healthcare, and enterprise web applications. I specialize in Ruby on Rails, React.js, Next.js, TypeScript, Node.js, PostgreSQL, AWS, Docker, REST APIs, and AI integrations (OpenAI, Claude, Gemini). I build secure, high-performance, production-ready applications with clean, maintainable code. Whether you need a new product, API integration, bug fixes, or ongoing development, I deliver reliable solutions that help businesses grow. ... Read more

Skills

m
mani4677
Muhammad Usman
Offline • 
Average response time: 38 hours

See my services

Full Stack Web Applications
I will be your expert ruby on rails developer
5.0(2)
Bug Fixes
I will debug problems in your rails application

Portfolio

Work experience

company

7 yrs 1 mo

Senior Software Engineer

Apr 2022 - Present4 yrs 3 mos

DEEL PAKISTAN (PRIVATE) LIMITED, Remote • Designed and optimized database structures, improving data access and query performance for mission-critical applications. • Integrated third-party APIs and services to enhance functionality and provide seamless user experiences. • Investigated and resolved complex technical issues, reducing system downtime and enhancing user satisfaction. • Implemented security best practices, including data encryption, user authentication, and vulnerability assessments, to protect sensitive user information. • System upgrade from legacy ruby and rails versions to latest version.

Senior Software Engineer

Jun 2021 - Feb 20228 mos

EVOLVERS TECH SOLUTIONS, Lahore, Pakistan • Researching, designing, implementing, and managing software programs. • Working closely with other developers, UX designers, business and systems analysts. • Work with developers to design algorithms and flowcharts. • Testing and evaluating new programs. Identifying areas for modification in existing programs and subsequently developing these modifications. • Produce clean, efficient code based on specifications. • Developing quality assurance procedures. • Deploying software tools, processes, and metrics. • Troubleshoot, debug, and upgrade existing software. • Gather and evaluate user feedback. Recommend and execute improvements. • Create technical documentation for reference and reporting.

Senior Software Developer

Apr 2019 - Jun 20212 yrs 2 mos

HEALTHWIRE (PRIVATE) LIMITED, Lahore, Pakistan • As the deployment of the system was done manually he was responsible for deploying the production releases through Capistrano bi-weekly in the morning times. • Managing junior resources and giving knowledge-sharing sessions to support the team and other stakeholders for the developed API/Modules. • Demonstrated deep knowledge of OOP, Data Structures and Algorithm, Operating Systems. • Skilled in Ruby, Ruby on Rails, & front-end technologies (HTML, ERB, HAML, CSS, JavaScript. • Developed & deployed production builds. • Proficiently worked with relational database systems & SQL (PostgreSQL). • Demonstrated good understanding of server-side CSS preprocessors such as Sass, based on project requirements.

22 Reviews
5.0

(21)
(0)
(0)
(0)
(1)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
1-5 out of 22 Reviews
Sort By
Most relevant
    S
    image-docs

    stephenheuer

    US

    United States

    5

    Mohammad Usman, knew exactly what needed to be done to implement the changes I requested. He completed the job in less than a day. I am very pleased with his work.

    Up to $50

    Price

    3 days

    Duration

    gig

    Full Stack Web Applications

    Helpful?
    Yes
    No
    D

    danishrashee104

    PK

    Pakistan

    5

    Overall excellent experience. Usman is experienced and delivery was fast. Definitely working with him next time.

    Up to $50

    Price

    1 day

    Duration

    gig

    Full Stack Web Applications

    Helpful?
    Yes
    No
    W
    image-docs

    wesocialyou

    US

    United States

    5

    Perfect! Mani is very expert in his field. I recommend him for anyone

    Helpful?
    Yes
    No
    B
    image-docs

    bluegene

    Repeat Client

    DE

    Germany

    5

    Very fast delivery! Thank you!

    Worksample image
    Helpful?
    Yes
    No
    B
    image-docs

    bluegene

    Repeat Client

    DE

    Germany

    5

    I have got very good support from Mani!

    Worksample image
    Helpful?
    Yes
    No