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I need a full-stack custodial wallet system that combines the centralised power of an exchange such as Binance with the clean, mobile-first interface users recognise from Trust Wallet. Every blockchain transaction—deposit, withdrawal, or on-chain settlement—must route through a single Admin Wallet, while balances move instantly off-chain when users send funds to each other. That structure lets me freeze, unfreeze, or otherwise act on any account at will. Functional scope • Supported flows: cryptocurrency deposits, cryptocurrency withdrawals, and instant user-to-user transfers recorded in our ledger but not broadcast on-chain. • Admin authority: full control of every wallet, including the ability to pause activity, reverse internal transfers, or place holds on balances. • Security baseline: two-factor authentication baked into both the user apps and the admin dashboard. What I expect from you 1. A robust backend (language and framework are your choice) that handles key generation, transaction signing, hot/cold wallet logic, and a real-time ledger for off-chain moves. 2. REST or GraphQL APIs so our mobile and web clients can call balance, history, and transfer endpoints. 3. A lightweight, responsive front-end that mirrors Trust Wallet’s ease of use—simple asset list, send/receive screens, QR scanner, and activity log. 4. An admin console where I can view deposits, approve or reject withdrawals, freeze accounts, and audit logs. 5. 2FA implementation (TOTP or similar) for both sides. 6. Deployment scripts, basic unit/integration tests, and concise documentation so my team can maintain and extend the system. Hand-off is complete when I can: • Create users, fund them via the Admin Wallet, move funds between users off-chain, and withdraw on-chain from the Admin Wallet. • Freeze a user and see their attempted actions blocked. • Enable or disable 2FA per account. If you’ve delivered custodial or exchange-level projects before and can meet these checkpoints, let’s get started.
Proje No: 40064376
19 teklifler
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19 freelancer bu proje için ortalama $3.115 USD teklif veriyor

I have extensive experience in PHP, C Programming, JavaScript, Mobile App Development, and Software Architecture, making me a perfect fit for the Custodial Crypto Wallet Platform android and ios project. I am confident in my ability to deliver a robust backend, REST/GraphQL APIs, responsive front-end, admin console, and 2FA implementation. Budget flexibility and project completion within your budget are my priorities. Let's discuss the full scope and get started on this exciting project. Please review my 15-year-old profile for past work. Looking forward to hearing from you.
$2.100 USD 21 gün içinde
8,7
8,7

We developed 3 CEX and 2 DEX so far using different technstack based on the features and client expectations. Looking at your given project description, you need a very simple platform to start with a single chain and add more chains going ahead. For your good understanding, platform development costs around 8500USD with 3500USD/chain for any additional chain integration.
$10.550 USD 90 gün içinde
8,0
8,0

Leveraging on my impressive Full Stack Developer track record, I am confident in my ability to build your custodial crypto wallet platform. Throughout my career, designing and developing dynamic web applications has been a key focus. Combining bespoke solutions with user-friendly interfaces is central to my design ethic, and this aligns perfectly with your project's vision. I have a deep understanding of key backend technologies that this project demands; Node.js and Laravel, both of which are primed for facilitating seamless transactions and ledger management. In addition to a robust backend, I possess considerable frontend prowess making me your one-stop solution to develop the lightweight, responsive front-end you require - mirroring Trust Wallet’s ease of use but with added creativity and precision. I’m also skilled in integrating complex APIs and deploying on different cloud platforms including AWS. Early in my career journey, I had an extensive exposure building cryptocurrency centric platforms which incorporated meticulous security & confidentiality protocols to ensure it was hacker-proof. Coining off-chain transfers while recording them in your ledger is something I specifically did there in addition to real-time stats updates.
$3.000 USD 7 gün içinde
7,7
7,7

Hello I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
$2.000 USD 45 gün içinde
6,6
6,6

Hi, I’ve delivered custodial and exchange‑level wallet systems before and can share examples directly in chat. I will deliver: 1. Robust backend handling key generation, transaction signing, hot/cold wallet logic, and a real‑time off‑chain ledger 2. REST or GraphQL APIs for mobile and web clients to access balances, history, and transfer endpoints 3. Lightweight, mobile‑first front‑end mirroring Trust Wallet’s simplicity (asset list, send/receive, QR scanner, activity log) 4. Admin console to view deposits, approve/reject withdrawals, freeze accounts, and audit logs 5. Two‑factor authentication (TOTP or similar) implemented for both user apps and admin dashboard 6. Deployment scripts, unit/integration tests, and concise documentation for maintenance and extension Hand‑off checkpoints: - Create users, fund via Admin Wallet, move funds off‑chain, and withdraw on‑chain - Freeze/unfreeze accounts with blocked attempted actions - Enable/disable 2FA per account Please feel free to reach out so we can discuss timeline and price. Best regards, Houssame
$1.500 USD 7 gün içinde
5,9
5,9

As an experienced software engineer, I understand the complexity and intricacies of your project on a deep level. My Master's in Embedded Systems equips me with a unique perspective that blends well with your needs. I've spent years working with C/C++ programming and multiple mobile app projects, giving me strong expertise in both aspects essential to your project. As for my proficiency in Python and Linux, you'll find it extremely beneficial during the deployment process, as they allow me to create highly-advanced yet easy-to-maintain systems. Moreover, my experience in designing secure and efficient software solutions aligns perfectly with your security concerns, especially for the admin panel. I'm comfortable incorporating 2FA (such as TOTP) authentification into both the user apps and the admin dashboard to ensure system integrity. When it comes to delivering custodial or exchange-level projects like yours, my track record speaks volumes. You can trust me not only to build a robust backend but also to craft APIs that meet your mobile and web clients’ needs. Alongside that, you can expect a lightweight but highly-responsive front-end that mirrors Trust Wallet's simplicity which is crucial for user adoption.
$3.000 USD 60 gün içinde
5,5
5,5

Nice to meet you dyans4, My name is Anthony Muñoz, I express my interest in working on your project after carefully reading the requirements and concluding that they match my area of knowledge and skills. I am currently the lead engineer for the IT agency DSPro and I have more than 10 years of experience in the field. I have successfully completed a large number of similar jobs and I consider your project to be a challenge in which I would like to work and be able to make it a reality. Please feel free to contact me, it will be my pleasure to help you. I greatly appreciate the time provided and I remain attentive to any questions or concerns. Greetings
$5.046 USD 7 gün içinde
5,9
5,9

Hi, I will make it a reality for you. I am an IIT grad . I have undertaken many such projects Kindly click on the chat button so we can discuss and get started Will share you my prior projects done and my resume too. I have been doing frelencing since 2019 worked at top MNCs in both USA and India. Lets connect
$1.500 USD 7 gün içinde
5,4
5,4

As a seasoned developer with a wide range of skills, including fluency in JavaScript and proficiency in mobile app development, PHP, and REST API, I am more than equipped to execute every aspect of the Custodial Crypto Wallet Platform project you have outlined. Over the past eight years, my expertise has been successfully applied to project-types that are similar to yours—Web Development, Mobile Applications, Cryptocurrency. My strength lies in delivering comprehensive solutions that entail robust backend strategies, intuitive frontend designs, impeccable API integrations, and many other components you require for your wallet system. To further solidify my candidacy for this role, the fact that I also bring an adeptness in Designing and Branding (Adobe Creative Suite for example) signals an added advantage; I can guarantee a pleasing UI/UX experience mirroring the ease of Trust Wallet functionalities for your decisive main goal. Let's chart a path forward and talk about how our collaboration will create an optimal product that exceeds your expectations.
$2.250 USD 21 gün içinde
3,9
3,9

Ahmedabad, India
Ara 14, 2025 tarihinden bu yana üye
₹400-750 INR / saat
$250-750 USD
₹37500-75000 INR
$250-750 USD
₹1500-12500 INR
$750-1500 USD
$15-25 USD / saat
₹12500-37500 INR
$30-250 USD
₹12500-37500 INR
$10-30 USD
$1500-3000 CAD
₹12500-37500 INR
$750-1500 AUD
€8-30 EUR
$10-30 USD
₹1500-12500 INR
$30-250 USD
$50 USD
₹12500-37500 INR