Senior full-stack developer for DeFi platform (Web3)

Budget: 27000 UAH Deadline: 5 days

I would charge 27,000 UAH not for the full development of the DeFi platform, but for the initial technical stage - architecture, MVP boundaries, smart contract scheme, security risks, and development plan.

The complete product with Solidity, backend, API, frontend, wallets, oracles, indexing, tests, and documentation should be evaluated after the design phase. Otherwise, there is a risk of embedding errors in the financial logic, which is costly and dangerous in DeFi =/

I see a normal start as follows:
> describe key user and administrator scenarios
> define the network, tokenomics, roles, and rights
> design smart contracts and backend services
> prepare a technical MVP plan with an assessment of full development

Please clarify:
> what specific DeFi model is needed - staking, lending, farming, launchpad, DEX, or another
> is an external audit of smart contracts required, or is internal testing sufficient at the first stage

Similar complexity cases from Ingello:
> https://business.ingello.com/svitbus - financial dashboard, roles, returns, complex transaction and booking logic
> https://business.ingello.com/platforma - platform with roles, processes, access rights, and scalable architecture
> https://business.ingello.com/fractal - an indirect but strong example of a complex automated system

Ingello Systems for the exchange:
> https://systems-fl.ingello.com/ua Expand

Budget: 27000 UAH Deadline: 15 days

Good day, Ivan!

I have carefully reviewed the requirements. In terms of scope, this is a full-fledged DeFi platform, so I suggest a phased implementation instead of trying to formally cover all functionality in one short phase.

The first phase will include:

— requirements audit and architecture design;
— selection of the main EVM network;
— threat model and access model;
— basic Solidity contracts with automated tests;
— backend on Node.js/NestJS;
— integration of MetaMask and WalletConnect;
— basic frontend on Next.js;
— testnet deployment;
— Docker, CI, and technical documentation.

Subsequent separate phases can implement staking, rewards, governance, price oracles, indexing, multi-chain, and production launch with an independent audit of contracts.

I have practical experience in developing full-stack products, server APIs, databases, integrations, testing, and phased management of complex technical systems.

I propose to fix each phase as a separate milestone with specific functionality and acceptance criteria.

The cost of the first phase is 90,000 UAH.
Timeline — up to 15 working days.
Work through Safe. Expand

Budget: 27000 UAH Deadline: 10 days

Hello, I am ready to perform tasks, one of the projects is https://pprintdim.com/portfolio.

Budget: 27000 UAH Deadline: 7 days

We already have a practically ready similar architecture for a DeFi and Web3 platform, which can be quickly adapted for your launch. ))
27,000 UAH seems like a realistic first stage - architecture, technical decomposition, prototype of the key scenario, smart contract assessment, and security plan.
A complete platform from concept to production with staking, rewards, oracles, indexing, testing, and infrastructure requires a separate assessment after clarifying the MVP.

We can handle Solidity, Node.js or NestJS, React or Next.js, integration with MetaMask, WalletConnect, EVM networks, REST API, GraphQL, database, Docker, and cloud infrastructure.
Separately, I would include contract security checks and a test network before the live launch - in DeFi, haste is expensive; it's better to check seven times here.

Question 1 - which is the priority first network for launch - Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain?
Question 2 - is there already a tokenomics, list of contracts, and rules for reward distribution?

Similar complexity examples:
- https://business.ingello.com/vorfahr - a complex product platform with automation and integrations
- https://business.ingello.com/platforma - an example of corporate platform architecture with roles, logic, and backend

Main profile of Ingello for FLH - https://systems-fl.ingello.com/ua
We can discuss the scope of the first stage here on the exchange; I am available (: Expand