Non-Custodial Crypto-Fiat Financial Platform Development

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We are developing a secure, non-custodian crypto on-ramp and off-ramp platform to facilitate seamless crypto-to-fiat and fiat-to-crypto transactions. This platform will allow users to convert between crypto (e.g., BTC, USDT) and fiat currencies (GBP, EUR) with KYC, KYT, and security measures integrated at each step to ensure compliance and a smooth user experience.

Core Workflows:

On-Ramp (Fiat to Crypto):

User Process: The user undergoes KYC at onboarding, then deposits fiat (GBP, EUR) via Modulr (or similar) API.

Video Waiver: Before proceeding, the user records a video acknowledgment of risk and waiver of indemnity, securely stored for compliance purposes.

KYT for External Wallet: The user’s external wallet address undergoes KYT verification for compliance.

Crypto Purchase and Delivery: Once fiat is received, the platform initiates a crypto purchase via the liquidity provider, deducting a pre-set commission.

Crypto Transfer: The acquired crypto is transferred to the user’s external wallet, completing the transaction.

Off-Ramp (Crypto to Fiat):

User Process: The user submits crypto (BTC, USDT) for fiat conversion, undergoing initial KYC if not already completed.

Immediate USD Conversion: Upon receiving crypto, the platform converts it into USD through the liquidity provider to minimize exposure.

Instant Fiat Payout: Using an external fiat provider (e.g., Modulr), the user receives an IOU equivalent to the converted amount in their chosen fiat currency (GBP, EUR) for an immediate experience.

Settlement Period: The backend processes the 24-hour BitGo settlement for USDT, ensuring our system’s liquidity while the user experiences no delay in the fiat payout.

Technical Stack:

Backend: Node.js

Frontend: React

Databases:

MongoDB for user management, blockchain logs, and transaction data.

PostgreSQL for fiat settlement data.

MongoDB + Document Storage for storing KYC files and video waivers.

Redis for session management and API rate limiting.

Elasticsearch for audit logs.

Integrations:

Wallet Infrastructure & Liquidity: BitGo for wallet management and liquidity provision.

Pricing API: CoinMarketCap for real-time rate fetching.

Fiat Payout: Modulr for handling fiat deposits and payouts in GBP and EUR.

KYC & KYT: Sumsub for KYC verification during onboarding, KYT for wallet address validation, and video acknowledgment for risk and indemnity.

File and Video Storage:

File storage for KYC documentation and video storage for waiver acknowledgments. Video recordings will capture the user’s verbal acknowledgment of risks and indemnity waiver, stored securely for audit purposes.

Development and Communication Requirements:

Timezone and Communication: Freelancer must be available during UK business hours and provide daily updates at the start of each day.

Quality and Security Compliance: The project requires regular code submissions via Git, following best practices and structured code reviews to maintain quality, security, and compliance.

JavaScript Node.js React.js Blockchain MongoDB

プロジェクトID: #38749373

プロジェクトについて

163個の提案 リモートプロジェクト アクティブ 1ヶ月前

163人のフリーランサーが、平均£500 で、この仕事に入札しています。

MashoodurRehman1

I am a Node.js and React developer with expertise in building secure crypto-fiat platforms. I can integrate KYC, KYT, and security measures for seamless transactions. My experience with Modulr, BitGo, and CoinMarketCap もっと

£637 GBP 5日以内
(115件のレビュー)
7.6
softsolution2000

Hi there I have extensive experience in developing secure and compliant platforms, making me a perfect fit for your non-custodian crypto on-ramp and off-ramp project. I have worked wit もっと

£488 GBP 7日以内
(88件のレビュー)
7.4
deniskirilov0212

Hello, I appreciate the opportunity to contribute to such a comprehensive and secure on-ramp and off-ramp platform. I have extensive experience with crypto-fiat integrations, KYC/KYT compliance, and secure, non-custod もっと

£600 GBP 5日以内
(16件のレビュー)
6.6
larrypaul93

Drawing from my extensive 7-year working background in full-stack web development with a specialization in JavaScript and Node.js, I am the ideal candidate for your Non-Custodial Crypto-Fiat Financial Platform Developm もっと

£399 GBP 13日以内
(51件のレビュー)
6.3
PentabayC

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on JavaScript, Node.js, React.js, Blockchain, MongoDB Ple もっと

£250 GBP 7日以内
(3件のレビュー)
5.6
arbu1499

Hello there! I can develop a secure, non-custodian crypto on-ramp and off-ramp platform that ensures smooth fiat-to-crypto and crypto-to-fiat transactions while adhering to KYC and KYT requirements. Each step will foc もっと

£440 GBP 7日以内
(36件のレビュー)
5.8
rashidamjad

Dear Onaopemipo, I am thrilled to propose my team's expertise for the development of your Non-Custodial Crypto-Fiat Financial Platform. With our solid background in JavaScript, Blockchain, MongoDB, Node.js, and React. もっと

£650 GBP 15日以内
(8件のレビュー)
5.5
imandaneshi1

Hello, I appreciate the detailed project description and am excited about the opportunity to contribute to your on-ramp and off-ramp platform. I’m a blockchain developer experienced with secure, non-custodial crypto s もっと

£750 GBP 6日以内
(17件のレビュー)
5.3
muhammadyeakub9

With over half a decade of expertise as a full-stack web developer, I'm confident that my skill set, particularly in JavaScript and Node.js, will be a significant asset to your secure, non-custodian crypto-fiat financi もっと

£1200 GBP 7日以内
(81件のレビュー)
5.1
mxicoders

My name is Ashok, and at MXI CODERS, blockchain development is our forte. With over a decade of experience and specializations in Core Workflows listed in your project description, we are well-equipped to build a secur もっと

£600 GBP 7日以内
(4件のレビュー)
5.2
prayogo803

Hello, Onaopemipo Chidindu A. my name is Prayogo, and I have been working as a Full-stack Engineer for 12 years. I have carefully read your job description and feel confident that I can successfully complete your proje もっと

£555 GBP 7日以内
(12件のレビュー)
5.3
TERODA

Hi! I'm Meili, and with over 11 years of programming expertise, particularly in Swift (VIPER architecture), backend development, and web platforms, I'm excited about the opportunity to contribute to your non-custodian もっと

£650 GBP 18日以内
(14件のレビュー)
4.9
ccristian88

No AI-written sales pitch here, Cristian has arrived to personally offer you something special: an undeniable blend of expertise and dedication built over years in the Blockchain field. My name is Cristian and, as a se もっと

£500 GBP 5日以内
(レビュー1件)
5.0
trm66614

Hi there,Good afternoon I am Talha. I have read you project details i saw you need help with Blockchain, Node.js, React.js, MongoDB and JavaScript I am pleased to present my proposal, highlighting our extensive experi もっと

£250 GBP 9日以内
(5件のレビュー)
4.7
kingxanda

Hey, Thanks for your post. I'v read your description carefully. I have relevant experience I can help. some of my skills are: Node.js, Blockchain, JavaScript, React.js and MongoDB Hope you're having a nice day my もっと

£750 GBP 5日以内
(8件のレビュー)
4.5
kanika6665

Hi Chidindu, I am excited about the opportunity to work on your project for developing a Non-Custodial Crypto-Fiat Financial Platform. Your detailed project description showcases the complexity and importance of the p もっと

£585 GBP 3日以内
(5件のレビュー)
4.4
ferreiraaldemir1

I understand the intricate nature of your project, which makes my skills in JavaScript and Node.js highly relevant. My 7-year experience in developing software solutions for complex domains like Sports Betting and Casi もっと

£700 GBP 25日以内
(5件のレビュー)
4.1
darko53

Hello Onaopemipo, I am Darko Banovic, with 5 years of experience in JavaScript, Node.js, React.js, and MongoDB. I have carefully reviewed your project requirements for the development of a non-custodial crypto-fiat fi もっと

£700 GBP 10日以内
(9件のレビュー)
4.3
imranarshad87

Hi, Could you provide more details about the KYC and KYT processes you’re aiming to implement? I have extensive experience with crypto platforms, including ensuring secure fiat-crypto transactions while meeting compli もっと

£500 GBP 25日以内
(3件のレビュー)
4.2
zengqiy

As an experienced and versatile full-stack developer with a deep understanding of the Blockchain, JavaScript, Node.js and React.js technologies that your project demands, I am confident in my ability to build robust an もっと

£600 GBP 7日以内
(7件のレビュー)
5.2