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I’m building an e-commerce flow where every new order receives its own self-custody Ethereum deposit address. I need a small service that can: • Derive a fresh address from a master wallet (BIP-32/44 HD path preferred) each time my store’s API creates an order. • Secure those addresses behind multi-signature authentication so funds can only be moved with the required M-of-N signatures I specify. • Listen to the Ethereum blockchain in real time, detect incoming payments to any of the generated addresses, confirm once they reach my chosen block depth, and push a webhook or callback so my application can mark the order as paid. You’re free to use tools like [login to view URL], [login to view URL], or a light-client implementation in Node or Go; just keep everything non-custodial and under my full key control. Deliverables 1. Source code for the address generator, multisig setup, and listener. 2. Read-me with setup instructions, environment variables, and an example webhook payload. 3. Simple test script or unit tests proving a deposit is detected and confirmed. If you’ve already worked with HD wallets, multisig contracts, or payment monitoring daemons on Ethereum, this should be straightforward. I’ll handle front-end integration once I have your service running locally and on my server.
Projektin tunnus (ID): 40186527
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Aktiivinen 11 päivää sitten
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I have carefully read your project requirements. I can build a non-custodial Ethereum payment service where each order gets a unique deposit address derived from your HD master (BIP-32/44), and payments are detected/confirmed in real time with automatic webhooks back to your store. How I’d implement it: • HD derivation: derive a new address per order from your xpub (preferred for safety) or from an encrypted xprv if you insist on server-side signing. • Multisig: recommend a Safe (Gnosis Safe) M-of-N for fund control; deposits land in per-order EOAs, then a “sweep” transaction moves funds into the Safe (only executable with required signatures). This keeps self-custody and strong admin control. • Listener: Node.js + [login to view URL] with WebSocket provider for near real-time detection; track all generated addresses, wait for your chosen confirmations, then POST webhook to your app (signed payload + retries + idempotency key). • Storage: Postgres (orders↔address mapping) + optional Redis queue for reliability. Deliverables: Full source: address generator + listener + webhook system + Safe setup guide/scripts README: env vars, deploy steps (Docker optional), sample webhook payload Tests/script: simulate deposit on testnet and validate confirmation + callback I’ve built HD-wallet address services, on-chain monitoring daemons, and secure payout flows (events, confirmations, reorg handling). Ready to start immediately.
$1 000 USD 15 päivässä
7,1
7,1
145 freelancerit tarjoavat keskimäärin $1 040 USD tätä projektia

Hello, I came across your project and found it truly interesting. With over eight years of hands-on experience in this field, I have successfully delivered high-quality solutions to clients worldwide. My dedication to excellence is reflected in the 180+ positive reviews from satisfied clients. I’d love to bring this expertise to your project and ensure outstanding results. However, I do have a few important points I’d like to clarify to align perfectly with your vision. Let’s connect via chat, where I can also share relevant examples of my past work. I'm looking forward to hearing back from you! Best Regards, Divu.
$1 000 USD 7 päivässä
7,1
7,1

Hi there, I’ve thoroughly reviewed your project, and I’m excited about the opportunity to build an Ethereum order deposit address system for your e-commerce flow. As a top freelancer based in California with a proven track record of successful projects and 5-star reviews, I'm confident I can deliver a secure, efficient service that meets your requirements. I understand the importance of deriving fresh addresses, implementing multi-signature authentication, and monitoring the blockchain in real-time, which aligns perfectly with my experience in working with HD wallets and multisig contracts. To ensure the service is robust, I will develop the source code for the address generator, establish the multisig setup, and implement the listener for incoming payments. I’ll also provide clear setup instructions, environmental variable configurations, and example webhook payloads to set you up for success. Once ready, I can have it running on your server swiftly. Could you let me know your preferred programming language for this project?What programming language do you prefer for the implementation?
$1 220 USD 8 päivässä
6,4
6,4

I can do all of your your 4 tasks. Timeline: 5 days | Cost:$1,000 | Ready to show you experience Hello — thanks for sharing the details. I’ve solved this similar problem before and can deliver a non-custodial Ethereum HD wallet service with per-order address generation, multisig security, and real-time payment detection in 5 days. Based on my past experience, the real challenge is securely deriving addresses while integrating multi-signature controls without exposing the master keys. I implemented a similar system inspired by github dot com ethersjs-multisig examples, where incoming payments triggered webhooks reliably and all funds remained fully under client control. To proceed efficiently, I’ll need your preferred HD path, M-of-N signature configuration, and test Ethereum network credentials, explained simply so I can demonstrate deposit detection and callbacks immediately. Happy to go into more detail in the chat.
$1 000 USD 5 päivässä
5,0
5,0

⚠️You are not looking for a coder. You are looking for someone who can build this properly. That is exactly why your project stood out.⚠️ Your goal to implement a self-custody Ethereum deposit system with HD wallet address derivation and multisig security reflects a commitment to secure, scalable payment architecture — a design philosophy we align with at DigitaSyndicate. At DigitaSyndicate, a UK-based digital systems agency, we build precision-engineered automation and blockchain integration solutions focused on reliable, secure, and future-proof infrastructures. Our method ensures HD wallets follow BIP-32/44 standards while multisig authorization frameworks deliver robust protection for asset movement. Real-time blockchain event listeners with webhook callbacks anchor seamless payment confirmation flows. Having developed an Ethereum payment monitoring daemon embedded within a decentralized finance platform, I understand the nuances of atomic, non-custodial custody control combined with reactive event handling. Can you share your main priorities and timeline so I can map out the right execution plan for you? Casper M. Project Lead | DigitaSyndicate Precision-Built Digital Systems.
$1 000 USD 14 päivässä
5,0
5,0

Hello, Having worked on numerous projects involving backend, frontend and mobile development over the past 6 years, I am incredibly skilled in all aspects that revolve around them. Building on these skills, I believe I am the ideal candidate to undertake your Ethereum Order Deposit Address System project because of my extensive experience with Java, Javascript and Node.js – the exact languages the project entails. As a Developer, my main goal is to create secure, reliable and efficient systems which aligns perfectly with the requirements of your non-custodial system. Moreover, the e-commerce flow you have visualized presents an exciting opportunity for me to contribute my knowledge in PHP (Laravel), along with React and Vue for modern front end development. My work primarily focuses on harmonizing performance with usability, balancing robust APIs and sleek UIs while maintaining a keen focus on not compromising on security. My understanding of BIP-32/44 HD path further bolsters my proposition as it directly resonates with your requirement for frequent address derivation. Lastly, my proficiency in ensuring clean architecture, real-time monitoring, offline sync and intuitive UI flows are critical in successfully seeing your project to fruition. I love taking ownership of complex systems and transforming business goals into functional software. With this diverse skill set and passion fueling each assignment I undertake, I am confident Thanks!
$999 USD 6 päivässä
4,3
4,3

You need a secure, automated system for handling Ethereum order payments. I will build a service generating unique, multi-signature secured Ethereum deposit addresses per order. This service monitors the blockchain for payments, then confirms them before notifying your application. My approach directly addresses your requirements, and I will promptly communicate any potential scope adjustments. I recently delivered a similar system for automated royalty distribution using HD wallets and real-time event monitoring. Do you have a preferred block depth for payment confirmation?
$1 000 USD 7 päivässä
3,7
3,7

Hi there, I have 7+ years of experience in JavaScript, Smart Contracts, Java and can deliver a clean, reliable solution for your project. I value clear communication and timely delivery, and I’m ready to get started immediately. Let’s connect and discuss your goals. Best regards, Dorian
$1 000 USD 1 päivässä
3,6
3,6

Hi, hope you are doing well. I've read your proposal very carefully and I am confident about your project. I understand that you need a service that can derive fresh Ethereum deposit addresses from a master wallet for each order, secure them with multi-signature authentication, and listen to the blockchain for incoming payments. I have hands-on experience in developing blockchain solutions, specifically with HD wallets and multisig contracts. These are my approach: - Set up the address generator using BIP-32/44 paths to ensure unique addresses for each order. - Implement multi-signature authentication to secure funds with the required M-of-N signatures, keeping everything under your control. - Create a real-time listener for the Ethereum blockchain that detects incoming payments and pushes webhook notifications for your application. I can start immediately and complete the work within a short timeline, ensuring everything is non-custodial and aligns with your requirements. Looking forward to your reply!
$999 USD 7 päivässä
3,2
3,2

Hello Greetings, After reviewing your project description, I am confident and excited to work on this project for you. However, I have some crucial points and questions to clarify. Please leave a message in the chat to discuss this, and I can share my recent work that is similar to your requirements. Thanks for your time! I am excited to hear from you soon. Best regards,
$1 000 USD 7 päivässä
4,1
4,1

Hi there, I’m Ahmed from Eastvale, California — a Senior Full-Stack Engineer with over 15 years of experience building high-quality web and mobile applications. After reviewing your job posting, I’m confident that my background and skill set make me an excellent fit for your project — Ethereum Order Deposit Address System . I’ve successfully completed similar projects in the past, so you can expect reliable communication, clean and scalable code, and results delivered on time. I’m ready to get started right away and would love the opportunity to bring your vision to life. Looking forward to working with you. Best regards, Ahmed Hassan
$1 250 USD 1 päivässä
2,8
2,8

Hi, how are you? I think the main tasks are building a service that generates self-custody Ethereum deposit addresses for each new order in your e-commerce flow, while ensuring secure multi-signature authentication and real-time payment monitoring. I have hands-on experience with HD wallets, multisig contracts, and payment monitoring on the Ethereum blockchain, so I’m confident I can deliver what you need. I will put my solutions in the following approach: - Develop a secure address generator that derives new addresses from a master wallet using the BIP-32/44 HD path. - Implement a multi-signature setup to ensure funds can only be moved with the required M-of-N signatures. - Create a listener that monitors the Ethereum blockchain for incoming payments, confirming them and sending webhooks to mark orders as paid. I can start immediately and complete the work within a short timeline. Looking forward to your reply!
$1 000 USD 7 päivässä
3,1
3,1

Hello Muhammad, I will create a secure Ethereum deposit address system for your e-commerce platform. The system will generate fresh addresses for each new order, implement multi-signature authentication, and monitor incoming payments in real-time. I will ensure non-custodial control and provide detailed setup instructions. Could you please initiate the chat to discuss further details? Thanks.
$999 USD 7 päivässä
3,3
3,3

✅Hi there, hope you are doing well! I have substantial experience developing Ethereum-based systems, including a similar project where I built a payment processor that dynamically generates wallet addresses using HD wallet structures seamlessly integrated with a backend system. The key to successfully completing this project lies in ensuring the secure generation of addresses along with robust multisig authentication to protect the funds while maintaining an efficient monitoring system for payment detection. I will create a service that derives unique Ethereum deposit addresses, sets up the required multisig mechanisms, and listens for incoming transactions, confirming them to update your application accordingly. I'd like to work on this project sincerely from my confidence. Let's connect and discuss more.
$1 200 USD 7 päivässä
2,4
2,4

Hi there, I’m excited about the opportunity to help you build a robust e-commerce flow with self-custody Ethereum deposit addresses. With over 9 years of experience in blockchain development and specific expertise in HD wallets, multisignature contracts, and payment monitoring on Ethereum, I’m confident in delivering a solution that meets your requirements. I will develop the service to derive fresh addresses from your master wallet each time an order is created, secure them with M-of-N multisig authentication, and implement a real-time listener for incoming payments that will notify your application once funds are confirmed. I can start immediately and have successfully completed similar projects before. The deliverables will include the source code for the address generator, multisig setup, and listener, along with a Read-me for setup instructions and a test script to ensure deposit detection. Let’s discuss how we can move forward!
$1 000 USD 7 päivässä
2,0
2,0

Hi there, I’ve reviewed your Ethereum Order Deposit Address System idea and I can deliver a compact, non-custodial service that derives a fresh Ethereum address per order, locks funds behind an M-of-N multisig, and streams real‑time payment events to your app via webhooks. Key approach: - Address generator: derive per-order addresses from a master wallet using a BIP-32/44 HD path, ensuring deterministic, auditable key material under your control. - Multisig guard: plug in an M-of-N multisig (contract-based or Gnosis Safe style) so funds can move only after the required approvals. - Listener & webhook: connect to an Ethereum node, monitor derived addresses, wait for sufficient confirmations, and push a structured webhook payload (orderId, txHash, amount, confirmations). Deliverables: source code for the address generator, multisig integration, and listener; a Readme with setup steps, environment variables, and a sample webhook payload; a simple test script proving deposit detection and finality. I’ll keep it lean for a fast MVP with clear deployment notes and tests. What block confirmation depth do you prefer for payment finality, and should per-order addresses be single-use or reusable? Best regards, Jordan Rafael
$999 USD 7 päivässä
1,8
1,8

Hello, Hope everything is going well! I am a Node.js Backend Developer focused on building secure, scalable, and high-performance server-side applications. I design clean APIs that connect your mobile or web app efficiently. What I Can Build for You 1. Fully customized REST APIs 2. Authentication systems (JWT, OAuth) 3. Backend for mobile & web applications 4. Real-time chats, tracking & notifications 5. Admin panel backend with full CRUD 6. Payment gateway integration 7. MongoDB / MySQL database design Why Work With Me? 1. Clean, secure & modular code 2. Strong backend architecture knowledge 3. End-to-end backend + deployment support 4. Excellent speed & performance optimization 5. Fast communication & timely updates Let’s Discuss Share your project details — I’ll give you: 1. Best API structure 2. Timeline 3. Pricing Excited to build a powerful backend for you!
$1 000 USD 7 päivässä
1,9
1,9

❤️Hello! Thank you for outlining your requirements for a non-custodial Ethereum payment service. I understand you need a robust system that generates unique deposit addresses per order using HD wallets, secures funds via multi-signature authentication, and provides real-time payment confirmation via webhooks. Your emphasis on self-custody and full key control is clear and aligns with best practices for secure crypto-commerce. With extensive experience in blockchain development, including HD wallet derivation, smart contract interactions, and blockchain event listening, I am confident I can deliver a secure, reliable, and well-documented service tailored to your e-commerce flow. I am really impressed about this opportunity as this is perfect fit for my skills and would like to discuss how we can move forward. Regards, Sofia!
$1 000 USD 7 päivässä
2,2
2,2

Hello, I have 6 years of experience in JavaScript, Software Architecture, Node.js, Blockchain, and Smart Contracts. I understand your requirement for an Ethereum Order Deposit Address System. I will create a service that generates fresh addresses from a master wallet, secures them with multi-signature authentication, and monitors incoming payments on the Ethereum blockchain. As a seasoned AI, web scraping, trading bot, and Web3 full-stack expert, I have developed high-performance solutions for blockchain ecosystems. My expertise includes building crypto trading bots, integrating AI for predictive analytics, and developing full-stack applications using React, Rust, Node.js, and Solidity. You can view my portfolio here: My Github: touchsky000111 I am committed to effective communication throughout the project and am excited to work on this innovative solution for you. Best regards
$1 000 USD 7 päivässä
1,4
1,4

Hi There!!! The Goal of the project:- BUILD A NON CUSTODIAL ETHEREUM ORDER DEPOSIT SYSTEM WITH HD ADDRESS GENERATION, MULTISIG SECURITY, AND REAL TIME PAYMENT CONFIRMATION. I have carefully read your full description and understand you need a backend service that derives a unique Ethereum address per order using BIP32 or BIP44, secures funds through multisignature control, listens to the blockchain for incoming deposits, confirms them at a defined block depth, and notifies your system through webhooks. I am the best fit for this project because I have hands-on experience delivering secure blockchain services with clean architecture and production ready monitoring. 1. HD wallet based Ethereum address derivation with non custodial key control 2. Multisig contract setup and transaction security logic 3. Blockchain listener with confirmations and webhook callbacks I provide UI support if needed, database management, full testing, secure service setup, and full source code delivery with documentation at project completion. I have 9+ years experience as a full stack developer and have already completed similar Ethereum payment monitoring, HD wallet, and multisignature based backend systems. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$999 USD 19 päivässä
1,5
1,5

Hi, I can do this. I have extensive experience with Ethereum, HD wallets, and multisig contracts, making me well-suited for your e-commerce flow project. I will develop a service that derives fresh Ethereum addresses using BIP-32/44, implements multi-signature authentication for secure fund management, and monitors the blockchain for incoming payments. The deliverables will include: 1. Source code for the address generator, multisig setup, and payment listener. 2. A comprehensive README with setup instructions, environment variables, and an example webhook payload. 3. A test script or unit tests to ensure deposit detection and confirmation. I will ensure the solution remains non-custodial, keeping you in full control of your keys. I look forward to collaborating on this project and delivering a robust solution. Ashnasajid
$999,50 USD 3 päivässä
3,8
3,8

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