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munimzafar13

Munim Z

@munimzafar13
4.9(70)

Passionate full stack web and blockchain developer

Pakistan
English
About me
I am a versatile full-stack software engineer with expertise in both web development and blockchain development, with web frameworks like NodeJS, React, Next, Express, GraphQL and Typescript as well as decentralized applications and smart contracts. Proficient in Solidity, JavaScript, and Python, I excel in both blockchain and web projects. My extensive skills make me an ideal candidate for various development projects. I am eager to offer my expertise to clients seeking a highly qualified developer for exceptional results in the digital world.... Read more

Skills

m
munimzafar13
Munim Z
Offline • 
Average response time: 1 hour

See my services

Smart Contracts
I will create nft smart contract and develop nft minting website
5.0(30)
Coin Design & Tokenization
I will develop crypto token and presale dapp
5.0(28)

Portfolio

Work experience

Founding Software Engineer

Mazlo • Full-time

Jul 2023 - Oct 20252 yrs 3 mos

- Built robust idempotent transaction workflows, processing $100M+ in financial transactions for 1,400+ customers with 100% accuracy and preventing duplicates. - Re-architected a legacy codebase, achieving 100% feature parity while improving maintainability, reducing technical debt, and enabling future scalability. - Led complex data migrations, including unstructured data from multiple sources, into a structured schema with 100% accuracy and zero downtime. - Integrated Stripe for donation processing, processing $1M+ in transactions while ensuring 100% matching of external donor information with user-entered records in the system. - Introduced feature flags to accelerate deployments and ensured 100% test coverage for critical systems through comprehensive test implementation. - Designed P&L and bank statement generation tools, reducing financial reporting time for users. - Streamlined multi-account management, eliminating 100% of overdraft incidents and ensuring strict budget adherence for sub-account users. - Engineered a system that allows users to create & manage recurring payments, resulting in a 15% growth in transaction volume within the first month of launch. - Automated workflows with Retool, cutting manual processing time by 60% and decreasing operational errors by 25%.

70 Reviews
4.9

(68)
(0)
(0)
(0)
(2)
Rating Breakdown
  • Seller communication level
    4.9
  • Quality of delivery
    4.7
  • Value of delivery
    4.7
1-5 out of 70 Reviews
Sort By
Most relevant
    F

    flexyflexy

    US

    United States

    5

    I went to this individual early on in the process of trying to launch my NFT project and ultimately i am very sorry that i did not immediately purchase as the quality and effort is unmatched. I am so thankful! Purchase!

    $100-$200

    Price

    9 days

    Duration

    gig

    Coin Design & Tokenization

    Helpful?
    Yes
    No
    P

    productions3

    Repeat Client

    NL

    Netherlands

    5

    I had the pleasure of working with the team and I’m absolutely thrilled with the experience! From the very beginning, communication was clear, professional, and friendly. They really took the time to understand my project requirements and delivered exactly what I needed—and more! The quality of the...

    $200-$400

    Price

    4 weeks

    Duration

    gig

    Smart Contracts

    Helpful?
    Yes
    No
    M
    image-docs

    mits108

    CH

    Switzerland

    Order Canceled

    1

    Unfortunately, I had a very disappointing experience with Munim. He promised to deliver my project on time, but after initial communication, he stopped responding. My project was important, and I relied on his commitment, but he failed to complete it. I cannot recommend working with him, as he is unreliable and does not follow through on his promises.

    $1,000-$1,500

    Price

    13 days

    Duration

    gig

    Decentralized Applications (dApps)

    Helpful?
    Yes
    No
    P

    productions3

    Repeat Client

    NL

    Netherlands

    5

    10/10 good

    $200-$400

    Price

    4 weeks

    Duration

    gig

    Full Stack Web Applications

    Helpful?
    Yes
    No
    I

    imaginesalaam

    Repeat Client

    US

    United States

    5

    Superb! Amazing experience with the best guy! Thank you Munim!

    $50-$100

    Price

    4 weeks

    Duration

    gig

    Smart Contracts

    Helpful?
    Yes
    No