Billion RWA

Budget: 15000 EUR Deadline: 60 days

Kevin, your platform needs more than tokenization — it needs compliance built into the asset layer. I’ve worked with Solidity, Hardhat, and Arbitrum-style deployments, and I can help design ERC-3643 contracts with ONCHAINID/KYC flows, audit-friendly architecture, and gas-aware logic. I’m also comfortable bridging smart contracts with Node/TypeScript backends and DeFi integrations for lending, staking, and collateral use. Let’s discuss the compliance model and token lifecycle.

Budget: 15000 EUR Deadline: 56 days

Hello. The architecture of the RWA tokenization platform requires strict compliance logic control at the level of smart contracts and reliable integration with ONCHAINID. I have experience in developing Web3 infrastructure and financial trading terminals with complex risk management (React, backend, API). I will deploy ERC-3643 standards on Arbitrum One in Hardhat, set up KYC whitelisting and backend connectivity for DeFi mechanics (staking, collateralization). Is there an approved specification for undergoing an external security audit of the smart contracts?

Budget: 15000 EUR Deadline: 5 days

Good day! I will complete it turnkey. I have experience in implementing such projects. I guarantee the completed work. The exact cost will be calculated after discussing all the details. Shall we discuss?

Budget: 15000 EUR Deadline: 90 days

📌Hello.👋
⭐️My name is Andrey.
⭐️My work experience: 12 years+

• ➡️I can show works specifically on blockchain projects
• 🎨Portfolio: Freelancehunt
• ✅Work rating on Behance (over 600,000 views)
• 💼More works here: Dribbble

Budget: 14997 EUR Deadline: 28 days

For this budget, I would propose a first engineering stage - architecture, smart contract design, compliance flow, core ERC-3643 prototype, deployment pipeline, and integration plan. A full regulated RWA platform with secondary trading, DeFi lending, audits, backend, frontend, and AWS operations is a larger budget story, so it is better to split it into stages and not pretend this is a small token contract =)

WE have relevant experience with complex fintech-like platforms, marketplaces, automation and AI systems where business logic, roles, security and integrations matter. For a project like this, I would start from the asset lifecycle, investor verification, transfer restrictions, issuer roles, auditability, and failure scenarios - because in tokenized real estate the expensive part is usually not minting tokens, it is keeping the system legally and technically controlled.

> Similar case - https://business.ingello.com/vorfahr - platform logic, automation and asset-heavy business processes
> Similar case - https://business.ingello.com/fractal - agentic and automation architecture for complex systems
> Main Ingello FLH page - https://systems-fl.ingello.com

Implementation vision
> ERC-3643 contracts and ONCHAINID compliance as the base layer
> KYC whitelist, issuer permissions, investor transfer rules and operational roles
> Hardhat test coverage, gas review, deployment scripts and audit-ready documentation
> Backend services for identity status, asset metadata, transactions and admin workflows
> Frontend investor and admin flows with wallet connection and controlled secondary market actions

To estimate the next stage accurately, I need 2 clarifications
> Do you already have the legal compliance model and KYC provider selected, or should we design that integration layer too
> Is DeFi lending required in the first release, or can it be specced after the regulated transfer and ownership model is stable

Смотрите, тут нюанс - I can work with the stated budget as a focused first stage, but not as the whole prodution platform. Measure twice, cut once - boring phrase, but smart contracts punish optimism rather quickly. Expand

Budget: 14500 EUR Deadline: 120 days

Good afternoon, I have over 15 years of development experience, including in the specified technologies, and I would be happy to take on your project.

Budget: 14500 EUR Deadline: 30 days

I can help with the development of the blockchain part of the platform, including the deployment of ERC-3643, integration of ONCHAINID, setting up a trusted issuer and claim registry, KYC whitelist logic, compliance rules for transfers, Hardhat tests, and integration of smart contracts with the frontend and backend.

I would suggest starting with a proof of concept in the Arbitrum Sepolia test network. Within the first phase, a complete basic scenario can be implemented: creating a real estate token, ONCHAINID, KYC claim, adding an investor to the whitelist, minting tokens, as well as allowed and prohibited transfers depending on the user's status.

After verifying the architecture and business logic, the contracts can be prepared for an independent security audit before deployment on Arbitrum One.

DeFi integrations, including staking, lending, yield farming, and using tokens as collateral, I would move to a separate phase after the basic regulated token and identification system have been fully tested.

Also, before starting, it is necessary to clarify the jurisdiction, KYC/AML provider, transfer rules, administrator roles, and exact compliance requirements.

Budget: 14997 EUR Deadline: 50 days

Hello!

We are the digital IT company Spectrium LLP (United Kingdom). We specialize in branding, AI, UI/UX design, and comprehensive web development for clients worldwide. Our portfolio includes architecturally complex B2B products, high-security fintech solutions, and scalable ecosystems with intricate cabinet logic and access rights.

Your project on real estate tokenization based on ERC-3643 and Arbitrum One requires maximum accuracy, security, and a deep understanding of Web3 infrastructure. Our team of developers fully covers the entire necessary technical stack turnkey. We are ready to take on the design and deployment of smart contracts in Solidity, flawless integration of compliance logic through ONCHAINID, as well as complete backend development in Node.js/TypeScript and frontend in React with wagmi/ethers.js integration. We will also provide full support before external security audits and gas optimization.

Important: The final cost of the project and exact development deadlines are always discussed and agreed upon with you in detail before starting, to fully align with your business goals and launch stages.

We would be happy to discuss the details of our collaboration in personal messages or on a short call!

Budget: 14997 EUR Deadline: 14 days

Turning institutional real estate into compliant, tradeable ERC-3643 tokens on Arbitrum is the core challenge here. My approach: deploy the T-REX suite (ERC-3643 + ONCHAINID ClaimIssuers) with a modular compliance contract so KYC rules per jurisdiction are swappable without redeploying the token; wire the identity registry to your KYC provider via a claim topic registry and automate whitelist updates through a backend worker in Node.js/TypeScript; then build DeFi integrations (collateralization, yield) as isolated adapter contracts with reentrancy guards and a pausable circuit breaker — the edge case a junior misses is that Arbitrum's sequencer downtime can leave lending positions in limbo, so I'd add a fallback grace period on liquidation triggers.

One architectural question before scoping the audit coordination: do you need multi-jurisdiction compliance modules at launch (e.g. US accredited investor rules alongside EU retail), or is the first version targeting a single regulatory framework?

Budget: 14997 EUR Deadline: 1 day

Hello! Real estate tokenization with ERC-3643 and ONCHAINID compliance is a great fit for me — I work daily with Node.js/TypeScript, React with ethers.js/wagmi, PostgreSQL and Redis, and I'm comfortable with Solidity contracts, KYC whitelist logic and DeFi integrations like staking and collateralization. Coordinating external audits and optimizing gas is exactly the kind of work I enjoy. Happy to discuss the details in private messages.

Budget: 14997 EUR Deadline: 50 days

Given your current budget, I propose treating this as the first milestone of the project. We can focus on the core engineering stage: architecture, smart contract design, compliance flow, the ERC-3643 prototype, and the deployment pipeline. Building a fully regulated RWA platform with secondary trading, DeFi lending, audits, backend, frontend, and cloud infrastructure is a much larger scope, so breaking the entire project down into manageable milestones is the most realistic approach. We have strong experience building complex fintech platforms, marketplaces, and automation systems, and for tokenized real estate, the priority must be the asset lifecycle, investor verification, and legal control rather than just minting tokens. Our implementation plan covers ERC-3643 contracts, ONCHAINID, Hardhat test coverage, backend services for identity and assets, and frontend investor flows. To estimate everything accurately, I need to know what functionality or codebase already exists, whether you have selected a legal compliance model and KYC provider, and if DeFi lending is required in the very first release. We are fully ready to collaborate and can deliver this focused first stage within your budget to ensure a secure foundation before moving forward.

Budget: 14997 EUR Deadline: 30 days

We will implement ERC-3643 compliance logic via a modular Identity Registry: our smart contracts will verify valid KYC/AML claims (Claim Topics) via ONCHAINID prior to executing any transfer or transferFrom function. Security tokens will never be transferred to an unverified wallet, ensuring 100% on-chain regulatory compliance on Arbitrum One.

Hello Kevin! I'm Nina, the operations manager at Valflow IT agency. Our blockchain architecture and smart contracts are developed by Valentin, a Senior Web3 Engineer. We specialize in building enterprise-grade DeFi platforms, focusing on production-ready Solidity code, deep gas optimization, and bulletproof security.
Core Competencies: Full T-REX (ERC-3643) ecosystem deployment, custom escrow, staking, and collateralization mechanics for RWA DeFi lending. Seamless integration with Node.js/TS backend.

Security First: Thorough gas profiling in Arbitrum and full smart contract preparation (Hardhat/Foundry, 100% test coverage) for external security audits.

Price: 14 997 EUR
Timeframe: 30 days

Let's connect in DM - we can discuss your required KYC providers (Claim Issuers) and outline the architecture for your DeFi fractional ownership layers. Expand

Budget: 16000 EUR Deadline: 40 days

Hello. My name is Alexey, and I represent a group of developers – NC-1. For over five years, we have been creating websites, mobile applications, online stores, ERP/CRM systems, and other e-commerce products. In our team, there is a Senior Blockchain Developer with the necessary experience and knowledge for you. Preliminary cost and timeline: 6000 eur., 40 working days. Best regards, Alexey M.

Budget: 14997 EUR Deadline: 50 days

Kevin, this is exactly the kind of regulated blockchain product where strong smart-contract design matters. I can help build ERC-3643 contracts with ONCHAINID/KYC logic, support audit-ready architecture, and tune gas on Arbitrum. I’ve led development teams for 7 years and delivered production web and app systems, so I know how to keep backend, frontend, and infrastructure aligned. Let’s discuss your token flow and compliance model.

Budget: 14990 EUR Deadline: 29 days

Good day.

My name is Valentin, and I represent ACW Soft Solutions. We can take your project into work and offer not just development, but a proper approach from task analysis to the launch of the finished solution.

To avoid giving a general response, I suggest we first briefly clarify your goals, functionality, and expectations regarding timelines. After that, we can propose a clear work plan, an approximate estimate, and the next steps.

I can also send examples of similar work in private messages and quickly discuss the details.

Portfolio: Freelancehunt

Budget: 14997 EUR Deadline: 30 days

Hello!

I have experience building scalable web applications with React, Next.js, TypeScript, Node.js, and integrating Web3 solutions using EVM-compatible networks and smart contracts.

I can contribute to:
* Developing and optimizing Solidity smart contracts (ERC-3643 based);
* Integrating ONCHAINID and KYC/whitelisting workflows;
* Building secure backend services with Node.js, TypeScript, PostgreSQL, and Redis;
* Developing React/TypeScript frontends with ethers.js or wagmi;
* Gas optimization, testing with Hardhat, and deployment automation;
* Docker-based environments and CI/CD with GitHub Actions.

I focus on writing clean, maintainable, and secure code while following best practices for smart contract development and blockchain application architecture. I am also comfortable collaborating with external auditors and implementing recommendations from security reviews.

I would be happy to discuss your current architecture, development roadmap, and the scope of the MVP. After reviewing the technical requirements, I can provide a detailed implementation plan, timeline, and estimate.

Looking forward to discussing your project! Expand

Budget: 14444 EUR Deadline: 50 days

hi, ready to help you out

will share previous works in chat to make sure we match

Budget: 14997 EUR Deadline: 90 days

Hello!

I am interested in your project — tokenization of institutional-grade real estate with ERC-3643 and ONCHAINID is a serious and interesting task.

About myself:
— 3-4 years in smart contract development on Solidity
— I have experience with ERC-20 and ERC-1400, understand the mechanics of security tokens, transfer restrictions, and KYC logic at the contract level
— I have studied the architecture of ERC-3643 (T-REX protocol) and ONCHAINID — the standard is well documented and logically follows from ERC-1400
— Experience with Hardhat, unit/integration testing, gas optimization
— Familiar with Node.js/TypeScript and AWS infrastructure

I would be happy to discuss the project in more detail. Expand

Budget: 15000 EUR Deadline: 40 days

Hi. I am ready to develop the smart contract architecture for your real estate tokenization platform. I will implement the ERC-3643 standard on Arbitrum One, fully integrating ONCHAINID for KYC whitelisting and identity management. I will also build the required DeFi logic for staking, yield, and collateralization, ensuring all contracts are gas-optimized and strictly prepared for external security audits. I can seamlessly connect the blockchain layer with your Node.js/TypeScript backend and React frontend using ethers.js and wagmi. Let's connect to discuss the project details and get started.

Budget: 14997 EUR Deadline: 1 day

I bring a different piece: EU corporate structuring, regulatory compliance, and RWA tokenomics/architecture — including a prior project building a copper-backed RWA token (issuer structure, token classification, compliance layer design). If the regulatory/structuring side of this platform isn't already covered — issuer entity setup, ONCHAINID as a legal identity framework rather than just a technical one, MiCA-type classification — that's where I could plug in alongside your technical hire.

just flagging it in case that gap exists.

Budget: 14997 EUR Deadline: 30 days

Hi,

Your project immediately caught my attention because it combines several areas I have strong experience with: security tokens, DeFi infrastructure, smart contract development, and backend systems around blockchain protocols.

I have experience building Solidity-based systems, designing smart contract architectures, integrating blockchain data flows, and working with DeFi-related mechanics such as liquidity, trading logic, and on-chain interactions. I’m comfortable working with EVM networks, Hardhat-based development workflows, contract testing, gas optimization, and deployment pipelines.

For an ERC-3643 real estate tokenization platform, I can help with:

* Developing and extending ERC-3643 compliant security token contracts
* Implementing compliance modules and transfer restrictions
* Integrating ONCHAINID-style identity and whitelist/KYC verification flows
* Designing secure token lifecycle logic (issuance, transfers, redemption, permissions)
* Building DeFi integrations for collateralization, lending, staking, and yield mechanisms
* Preparing contracts for audit by following security best practices and writing comprehensive tests

I also have backend experience with Node.js/TypeScript and blockchain integrations, so I can work across the stack when needed — from smart contracts to APIs and infrastructure.

I understand that real estate tokenization requires a strong focus not only on functionality but also on compliance, security, and upgradeability. I would approach this as a production-grade financial system rather than just a set of smart contracts.

I’d be happy to discuss your current architecture, token model, and roadmap.

Best regards
Dmitry Expand

Budget: 15002 EUR Deadline: 90 days

Kevin F

Helo. How are you doing today?
Is any problem with current architecture?
What do you belive we can improve together?

Budget: 15000 EUR Deadline: 25 days

Hello,

I'm interested in your project. I have experience developing Solidity smart contracts and building blockchain applications with Hardhat, TypeScript, and React.

Your platform is particularly interesting because it combines **ERC-3643 security tokens**, **ONCHAINID compliance**, and **real-world asset tokenization**. I can contribute to smart contract development, compliance integration, contract testing, gas optimization, deployment on Arbitrum, and collaboration during security audits.

I'm comfortable working with GitHub, Docker, and modern Web3 development workflows, and I write clean, well-tested, and maintainable code.

I'd be happy to discuss your architecture and how I can contribute to the project.

Best regards. Expand