Solidity/MEV specialist
Hello! We are looking for a Solidity/MEV specialist to finalize our execution stack.
Context
We already have an on-chain "squeeze radar" (node + detector) working.
We need fast/private execution (private bundles) and/or integration with existing executors.
The main bottleneck: the executor contract — our developer made the mechanics, but the contract is not performing.
Goal
When the radar catches an event (dump/squeeze under conditions), we want to execute trades quickly and privately:
Buy (and optionally subsequent actions: approve)
Priority: speed, stability, security.
What needs to be done
Solidity contract "Executor" (minimal, gas-optimized)
Swap functions through popular routers:
Uniswap V2-like (swapExactETHForTokens / swapExactTokensForETH, etc.)
Uniswap V3 (exactInputSingle / exactInput) — if needed
Support for WETH wrap/unwrap if necessary
Safe approvals (preferably "approve max once")
Return of tokens/ETH to the owner
Access control: owner-only / authorized caller
Optionally: multi-call / atomic sequence (buy → approve → sell) in one transaction
Recommendations for the pipeline of private bundles
We plan to send privately through builders/relais (e.g., Titan Builder), need best practices:
nonce, simulations, handling revert
strategy for replacing bundles
how to debug/trace more conveniently
Quality
Clean code, comments, and tests (preferably Foundry)
Security notes: threats/edge cases (MEV, approvals, reentrancy, etc.)
Simple configuration: routers, fee tiers, slippage parameters
What is already available
The radar triggers are ready (we can trigger webhook/message/internal call).
precise networks (ETH)
Your experience (MEV/searcher, Uniswap V2/V3, private bundles)
Volume assessment (MVP vs extended)
What we need from you to start (networks, routers, preset amounts, etc.)
We will agree on the price!
Thank you!
Current freelance projects in the category Web Programming
Development of a post view management system in MAXA custom method is required for implementing and managing views of publications on the MAX platform. Important: implementation is of interest through browser emulation and proxy, without using third-party services. Required functionality: • A separate activity script is launched… Web Programming ∙ 16 minutes back ∙ 3 proposals |
Development of a simple catalog website (Czech Republic)A budget-friendly yet fully functional product catalog website is needed for the Czech market. The project is short-term (launched for a clearance sale), so the priorities are minimum cost, speed of implementation, and ease of deployment. No complex automation systems or… HTML & CSS, Web Programming ∙ 15 hours 47 minutes back ∙ 97 proposals |
Automation setup: Form on the website → WhatsApp bot → CRM (Make + WATI)Project Description: There is a transportation company website. Clients submit requests through a form on the site — the form is sent to email. We need to set up the following automation:Stage 1 — Form → WhatsApp — When a new request comes to the email from the website, the… Web Programming, Bot Development ∙ 17 hours 1 minute back ∙ 30 proposals |
I want to learn how to create websites for CS:GO/CS2I need a mentor who will teach me how to create a CS2/CS:GO server. I want to go through step by step via Discord/Zoom: hosting/VPS, server.cfg, maps, plugins, admin panel, ban system, Discord, website, and statistics. Language: Ukrainian or Russian. HTML & CSS, Web Programming ∙ 22 hours 43 minutes back ∙ 10 proposals |
Looking for a programmer or vibe coding Automation scraping data 2https://drive.google.com/file/d/14tP5XWJB9acV4gn_cJrFwMpihUj3EbQz/view?usp=sharing I accidentally sent that link Web Programming, Data Parsing ∙ 1 day 1 hour back ∙ 31 proposals |