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We are seeking a blockchain software expert capable of developing a system that allows for the creation of unlimited addresses on a blockchain network—customized to our specifications—and enables the tracking of these addresses.
Project ID: 40546129
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69 freelancers are bidding on average €3,895 EUR for this job

Having already developed a breadth of skills and knowledge in the world of blockchain, I am well-equipped to meet your specific needs for this project. My proficiency extends not only to Ethereum but also Solana, which is a perfect fit for your specified requirements. The ability to create unlimited addresses on a blockchain network is an intricate process, but one that I am well-versed in and can accomplish securely. My scope of expertise also encompasses building secure blockchains, and launching custom crypto coins and tokens based on different networks such as ERC, BNB & SOL. This means I can deliver you a highly personalized solution that matches your blockchain platform for the tracking of unlimited addresses seamlessly. Furthermore, my skills in PHP, Software Architecture, and Website Design will be valuable throughout the project's implementation as they enable me to approach tasks holistically. I am constantly up-to-date with the latest advancements in blockchain technology, and will ensure that your system is both scalable and high-performing. Through my work with various clients, I have learned to tailor solutions according to their unique needs, which makes me confident that I am the right fit for your project.
€5,000 EUR in 70 days
9.6
9.6

Hi there, I have checked your requirements where you mentioned that you are looking for a blockchain software expert…Please invite me in chat so we can discuss in detail….
€4,000 EUR in 30 days
9.1
9.1

Hi — Elias here from Miami. I see you’re looking for a blockchain software expert to develop a system for creating and managing blockchain applications. This can be a complex area, especially when it comes to ensuring security and scalability. One common challenge in blockchain projects is integrating with existing systems and ensuring smooth user experiences. Another issue is managing the nuances of different blockchain platforms, especially when deciding between solutions like Ethereum and Hyperledger. My approach would start with understanding your specific requirements and the intended user flow. From there, I would focus on building a robust backend that integrates well with the front end while ensuring security measures are in place. I’ve worked with RESTful APIs and GraphQL to create flexible and efficient interactions between the frontend and blockchain. To move forward, could you clarify what specific functionalities you envision for this system? Also, do you have a preferred blockchain platform in mind? Looking forward to your thoughts.
€4,000 EUR in 14 days
8.5
8.5

Hi, this reads less like a simple wallet feature and more like blockchain account infrastructure with monitoring, controls, and long-term operational constraints. The real engineering risk is not address creation itself; it is designing a tracking model that stays reliable as address count grows and chain events need to be indexed, reconciled, and queried cleanly. I’ve built production systems around event-driven backends, API integrations, and stateful monitoring flows, and that is the part of this project I can assess clearly. From your stack notes, the RESTful API requirement suggests you likely need a service layer separating address lifecycle management from downstream reporting or application use. The closest work here is Custom Feature Development & Integration for requirement shaping and core backend changes, plus NYSE Day Trading Bot Development for real-time tracking patterns and operational reliability. I usually structure systems like this with separate layers for address generation, chain indexing, normalized storage, and query/reporting APIs. That separation matters because derivation, event ingestion, and historical lookups scale differently. Given the blockchain-specific depth here, the first step should be tightening the chain model, custody assumptions, and tracking semantics before implementation. If useful, I can sketch the service architecture and data model for address generation and monitoring. Thanks, Hercules
€5,000 EUR in 7 days
7.4
7.4

Hi! I have extensive experience developing blockchain solutions, including custom wallet/address generation and address tracking systems. I can build a scalable solution tailored to your requirements and am ready to start immediately. A couple of questions: 1. Which blockchain network(s) do you want to support (Bitcoin, Ethereum, TRON, Solana, etc.)? 2. What tracking capabilities do you need—balance monitoring, incoming/outgoing transactions, or real-time event notifications?
€4,000 EUR in 7 days
7.5
7.5

Building a system to generate unlimited customized blockchain addresses with tracking is a practical challenge I’ve handled. For example, I helped a fintech client create Ethereum wallets linked to user profiles, with real-time monitoring of transactions. To proceed, it would help to know which blockchain network you want to target and if you need on-chain or off-chain tracking. Also, should the addresses be generated deterministically (like HD wallets), or fully random? This impacts how scalable and secure the solution will be. I can design a system that not only creates unlimited addresses according to your specs but also tracks their balances and movements via event listeners or API calls. This approach allows easy customization and efficient monitoring. If there are any specific data points or custom metadata you want linked to each address, let me know. I’m ready to start building a reliable, scalable address management system that fits your exact needs.
€5,000 EUR in 7 days
6.0
6.0

I am excited about the opportunity to work on your blockchain project. With my expertise in PHP and Java, I can develop a robust system tailored to your specifications. The ability to create unlimited addresses on a blockchain network is essential for various applications, and I understand the technical implications. I have a solid understanding of how Hyperledger can be utilized to streamline this process and ensure security. What specific functionalities do you envision for tracking these addresses? Are there any particular security protocols you would like to implement? What is your timeline for the project to be completed? I am eager to contribute to this innovative project!
€3,000 EUR in 13 days
5.6
5.6

SolutionzHere can build this as a blockchain address-generation and tracking system, most likely using an HD-wallet approach so unlimited addresses can be derived deterministically and monitored cleanly. That pattern is standard for scalable address creation, tracking, and payment attribution without exposing private keys unnecessarily. For a scoped build like this, I’d quote €3,500–€5,000 depending on how many chains, notification rules, and dashboard views are required. If you need live monitoring, webhooks, and audit logs, I’d keep it modular so the tracking layer can expand later. One quick question: which blockchain network do you want first, and do you need the system to be non-custodial?
€5,000 EUR in 20 days
5.4
5.4

Hi there, Thank you for sharing your project requirements. We are Demivision LLC, a dedicated team of blockchain software experts with extensive experience in custom blockchain solutions, smart contract development, and advanced address management across various platforms including Ethereum and Hyperledger. We understand that you are seeking a solution to generate unlimited blockchain addresses tailored to your specific needs, alongside a robust system to track and manage these addresses efficiently. Your need for expertise across PHP, Java, RESTful API, GraphQL, and blockchain development aligns perfectly with our team's skill set. Our approach will involve analyzing your detailed specifications to design a modular and scalable system architecture. We will leverage proven frameworks to ensure security and performance, whether you require public blockchain integration (such as Ethereum) or permissioned networks (like Hyperledger). Address generation will be automated, with secure key management and custom metadata support. For address tracking, we will implement a real-time monitoring mechanism using APIs or node integrations, providing you with comprehensive data access through intuitive dashboards or API endpoints. Our team has successfully delivered similar solutions to clients in the fintech and enterprise sectors, with a focus on reliability, security, and user-centric design. We are confident that our collaborative approach and technical expertise will meet your project goals. We look forward to discussing your requirements in further detail and exploring how Demivision LLC can add value to your project. Best regards, Demivision LLC
€4,000 EUR in 40 days
4.6
4.6

Hello, you’re describing wallet infrastructure plus chain monitoring, not just address creation, and that distinction matters for how the system should be designed. The real engineering risk is not generating unlimited addresses; it is building a deterministic, auditable tracking layer that handles chain events, confirmations, and operational safety without turning into a brittle indexer. I usually structure systems like this with a clean separation between address provisioning, chain ingestion, transaction normalization, and reporting APIs. That keeps the creation path simple while isolating the higher-variance tracking logic behind a dedicated event pipeline. Your mention of Ethereum suggests the first design decision is whether this is HD wallet derivation, contract-based address workflows, or a watcher service around externally controlled wallets. The closest work I’ve done here is Enterprise ProxyTool Client App for control-plane/data-plane architecture and Dent-Cloud for high-volume tracking and analytics pipelines. Different domain, but the same production concerns apply: scale, observability, and clean event modeling. If useful, I can sketch the service boundaries and data model for address generation, chain sync, and tracking before implementation. Clifton
€4,000 EUR in 7 days
4.6
4.6

Hello, Your project caught my attention because it goes beyond standard blockchain development. Building a scalable system for generating and tracking unlimited blockchain addresses requires careful architecture to ensure security, performance, and future scalability. I can develop a clean, well-structured solution tailored to your requirements, with a strong focus on reliability, efficient address management, and API integration where needed. My approach is to build a flexible foundation that can easily adapt as your project evolves rather than limiting future expansion. I'd be happy to discuss the technical details and suggest the most suitable blockchain architecture before development begins. Best regards
€3,900 EUR in 42 days
4.3
4.3

I looked at your project and see you need a blockchain expert to develop a system for creating unlimited customized addresses on a blockchain network and tracking them. I have built 3 blockchain address management systems using Ethereum and Hyperledger, including a multi-address generation tool with HD wallet support (BIP32/BIP44) that created 10,000+ unique addresses with custom metadata tags and real-time balance tracking via blockchain explorers and Web3 APIs. You can see representative examples of my work on my Freelancer profile at https://www.freelancer.com/u/cuyodigital. My solution includes a backend service (Node.js or Python) with HD wallet generation for unlimited addresses, a custom metadata mapping system to associate addresses with your internal identifiers, real-time tracking of transactions and balances via blockchain RPC calls, and a RESTful API or GraphQL endpoint for integration with your existing systems. I will also include a monitoring dashboard for address activity Do you have a preferred blockchain (Ethereum, Hyperledger, or another), and would you like the tracking to include transaction history and alerts for incoming/outgoing activity? Let me know your answers. I can start right away. Ricardo
€3,000 EUR in 20 days
3.8
3.8

I am a seasoned blockchain software expert with extensive experience in developing customized solutions tailored to specific needs. My expertise includes creating secure systems that manage multiple blockchain addresses, ensuring easy tracking and seamless integration with existing structures. I am committed to delivering high-quality solutions and ensuring your project's success with reliable support throughout the process.
€4,000 EUR in 7 days
4.3
4.3

Hi there, we have recently completed a similar project and would love to share some references. Developing a system that allows for unlimited address creation on a blockchain network is right up our alley, and we would love to exceed your expectations. We specialize in blockchain software development, leveraging our expertise to create a customized system tailored to your specifications. With our skills in blockchain technology, we can ensure a seamless process for address tracking, meeting your unique requirements effectively. Each project is treated with the utmost respect, and we only take on a handful of clients to provide top-quality outcomes. While we might be new to Freelancer, we have over 9 years of experience off-site. I truly appreciate you taking your time to review our proposal and would love to discuss this project more. Kind regards, Trichelle
€3,750 EUR in 7 days
3.6
3.6

Hello, Let's turn great ideas into products people love using and businesses love growing with. To achieve your goal of developing a system for creating unlimited addresses on a blockchain network and tracking them, it's crucial to ensure a secure and scalable solution that meets your specific requirements. This project holds significant importance as it will enhance transparency and efficiency within your blockchain network, benefiting both your organization and its users. In addressing this project, it's essential to consider potential risks such as scalability, security, and efficient database management to ensure a reliable and maintainable system. I recommend implementing a robust architecture with secure authentication, scalable database design, and efficient deployment processes to support the tracking of addresses effectively. With over 6 years of experience in developing SaaS platforms and blockchain solutions, I have successfully tackled similar challenges, utilizing technologies like Node.js, AWS, and PostgreSQL. I would love to discuss further technical details and recommendations to optimize the solution for your specific needs. I have a few technical questions and some recommendations that I believe could improve the overall solution. I'd appreciate it if you could send me a message through chat so we can discuss them in more detail. Cheers, Yuan.C
€4,000 EUR in 15 days
2.8
2.8

Hi! I can help design a secure blockchain-based system that generates and tracks large-scale address sets according to your specifications, with proper key management, indexing, and monitoring. I’d like to review your exact chain requirements and use case before confirming the final estimate. I’d love to work with you!
€3,000 EUR in 7 days
2.8
2.8

Athens, Greece
Member since Jun 28, 2026
€3000-5000 EUR
₹1500-12500 INR
$10-30 USD
$10-30 USD
$8-15 USD / hour
£20-250 GBP
₹600-1500 INR
$250-750 USD
₹1500-12500 INR
$250-750 USD
₹37500-75000 INR
₹12500-37500 INR
₹12500-37500 INR
$10-30 USD
₹600-1500 INR
$750-1500 USD
₹1500-12500 INR
£750-1500 GBP
$250-750 USD
₹600-1500 INR