j
jcmtd123

Jay C.

@jcmtd123
5.0(18)

Level 1

Senior Software Developer

United States
Spanish, English
About me
I am a senior full-stack and blockchain developer with 10+ years of experience building secure, scalable, and high-performance web platforms. I specialize in Golang, Node.js, React, smart contracts, and blockchain infrastructure. I have built payment gateways, DeFi platforms, cross-chain bridges, NFT systems, and custom backend architectures. I work directly with self-hosted nodes, on-chain indexing, and security-first designs. I don’t use copy-paste code. I build clean, auditable, production-grade systems that scale and stay secure.... Read more

Skills

j
jcmtd123
Jay C.
Offline • 
Average response time: 1 hour

See my services

Trading Bots Development
I will develop polymarket bot arbitrage bot ai copy trading bot market maker bot
5.0(5)
Full Stack Web Applications
I will develop rust python go project for blockchain backend ai
5.0(2)

Portfolio

18 Reviews
5.0

(16)
(0)
(2)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
1-5 out of 18 Reviews
Sort By
Most relevant
    V
    image-docs

    vpetrovic1994

    Repeat Client

    RS

    Serbia

    5

    Outstanding work on the token launchpad and volume/holder bot. The developer demonstrated strong expertise in blockchain development and delivered a very stable and efficient system. The launchpad functions smoothly and the automation bots perform exactly as expected, helping maintain consistent activity...

    Up to $50

    Price

    2 days

    Duration

    gig

    Decentralized Applications (dApps)

    Helpful?
    Yes
    No
    C
    image-docs

    carlos_eduard2

    BR

    Brazil

    5

    Great developer with strong knowledge of trading automation and Polymarket markets. The arbitrage bot was delivered on time and works perfectly. He also added useful features like logging and configurable parameters. Communication was smooth and professional from start to finish. I’m very satisfied with the result and would definitely hire again.

    Up to $50

    Price

    1 day

    Duration

    gig

    Trading Bots Development

    Helpful?
    Yes
    No
    V
    image-docs

    vpetrovic1994

    Repeat Client

    RS

    Serbia

    5

    Absolutely fantastic experience, Jose! You delivered the Polymarket bot on time and went above and beyond by expertly controlling and optimizing its parameters. Thanks to your work, the bot is performing flawlessly and delivering excellent results. I highly recommend you for anyone looking for reliable and high-quality bot services!

    Up to $50

    Price

    4 days

    Duration

    gig

    Trading Bots Development

    Helpful?
    Yes
    No
    V
    image-docs

    vpetrovic1994

    Repeat Client

    RS

    Serbia

    5

    Jay is my long term partner and he always solved the problems in really efficient ways. Thank you, Jay, we will be the long term partners.

    $50-$100

    Price

    2 days

    Duration

    gig

    Trading Bots Development

    Helpful?
    Yes
    No
    V
    image-docs

    vpetrovic1994

    Repeat Client

    RS

    Serbia

    5

    Another good job on polymarket!!! Excellent US friend, when u need tasks US specific, then he is the perfect person for this. Thank you. Jay.

    Up to $50

    Price

    2 days

    Duration

    gig

    Trading Bots Development

    Helpful?
    Yes
    No