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Ich plane den Aufbau einer dezentralen Börse, die einen eigenen Liquiditätspool bereitstellt und sofort einsatzbereit ist. Im ersten Schritt liegt der Fokus auf einem funktionsfähigen Kernsystem, das Swaps ermöglicht und Ein- sowie Auszahlungen in den Pool sicher verarbeitet. Was ich erwarte • Entwicklung der notwendigen Smart Contracts inklusive gründlicher Tests • Einrichtung der Pool-Logik (Einzahlung, Auszahlung, Gebührenverwaltung) • Einfache Web-Oberfläche zum Verbinden der Wallet, Durchführen von Swaps und Verwalten der Liquidität • Saubere Dokumentation, damit ich Änderungen oder Erweiterungen leicht nachvollziehen kann Technische Leitplanken Die Wahl der Blockchain ist noch offen – Ethereum, Binance Smart Chain oder Solana kommen infrage. Bitte schlage mir die sinnvollste Option in Hinblick auf Gas-Kosten, Community-Support und Sicherheit vor. Ausblick Nach dem MVP möchte ich Zusatzfunktionen wie Staking, Yield Farming Fiat Defi oder Lending modular nachrüsten. Wenn du Erfahrung damit hast, erwähne das gern, es ist jedoch kein Muss für den jetzigen Meilenstein. Worauf ich Wert lege – Sauberer, prüfbarer Code (Solidity, Rust oder Vyper je nach Chain) – Best-Practices beim Thema Security (Reentrancy-Schutz, Upgradability, Audits) – Klare Kommunikation über Fortschritt und offene Punkte Wenn du bereits DEX- oder DeFi-Projekte umgesetzt hast, verlinke bitte ein, zwei Referenzen. Ich freue mich auf deine Expertise und einen reibungslosen Projektstart.
Project ID: 40553880
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38 freelancers are bidding on average €268 EUR for this job

Hi, A DEX with its own liquidity pool needs a reliable core from day one: correct swap math, pool accounting, fee handling, and deposit/withdraw flows before any UI is added. The main risk is not the interface, but pricing errors or a contract structure that becomes difficult to secure later. My first priority would be contract architecture and token flow: pool entry/exit logic, slippage-safe swaps, fee handling, and security checks such as reentrancy protection and strict validation. I would also evaluate Ethereum, BSC, and Solana for your MVP and recommend the best option based on gas cost, tooling, security maturity, and ecosystem support. After that, I’d connect the web app to wallet actions and keep the UI simple for swaps and liquidity management. Initial focus: Core pool smart contracts Swap and liquidity functions Security testing and edge cases Wallet connection and basic UI Documentation for future expansion I have experience building secure blockchain applications and can help you define the right MVP structure from the start. One quick question: should the MVP support a single token pair first, or should the pool be designed for multiple pairs from the beginning?
€97 EUR in 5 days
9.3
9.3

Interesting project, Ich werde die Smart Contracts für eure DEX mit Liquiditätspool entwickeln, die Swap-Logik und Pool-Verwaltung (Ein-/Auszahlung, Gebühren) aufsetzen und eine Web-Oberfläche für Wallet-Anbindung und Swaps liefern. Zur Chain-Wahl: Für ein MVP mit niedrigen Gas-Kosten und großer Community würde ich BSC empfehlen, aber das hängt von eurer Zielgruppe ab. Ich teste alle Contracts auf einem Testnet, bevor irgendetwas live geht. Fragen: 1) Welche Token-Paare sollen zum Start im Pool verfügbar sein? 2) Habt ihr schon ein Frontend-Framework im Einsatz oder soll ich das frei wählen? Send me a message and we can go over the details. Best regards, Kamran
€34 EUR in 10 days
8.5
8.5

Hello, I can help with your "Dezentrale Börse mit Liquiditätspool" project. I develop clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving php, logo design, html, blockchain, ethereum, solidity, smart contracts, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. I provide clean commits and clear documentation. Could we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "Very Professional and On time delivery of the project" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
€200 EUR in 5 days
7.5
7.5

As an expert in Shopify, WordPress, and web development technologies, I am excited to help you build a decentralized exchange with a robust liquidity pool. I can develop the necessary smart contracts, establish pool logic, and create a user-friendly interface, ensuring clean documentation throughout. I am ready to start RIGHT AWAY. Regards, Pooja
€200 EUR in 3 days
7.1
7.1

As an experienced backend developer specializing in building scalable web applications integrated with APIs, I'm confident that I can not only develop the necessary solid and secure Smart Contracts for your Dezentrale Börse project, but also design an intuitive web interface for seamless connectivity, swaps execution, and efficient liquidity management. My past projects have revolved around automation systems, data engineering, and AI-powered workflows, which align well with the future-proof aspirations of your exchange. I understand that you're open to different blockchain options; I will gladly assess Ethereum, Binance Smart Chain or Solana on their gas costs, community support, and security to suggest the most sensible approach. Notably, security is paramount in the decentralized finance terrain. My projects are known for their clean and auditable code along with best-practice securities like Reentrancy-Schutz, Upgradability; key features you explicitly requested. While Dezentrale Farming or Lending are optional additives you mentioned considering in the future roadmap of your DEX project, my experience in this field could go a long way in planning that expansion. Communication-wise, rest assured of progress reports and openness about any concerns throughout our partnership. Let my solutions turn your complex processes into a reliable automated software so your focus can remain where it's needed most
€140 EUR in 7 days
6.7
6.7

Hi, I am excited to help you develop your decentralized exchange with a liquidity pool. My experience includes creating secure and efficient smart contracts using Solidity and Rust, ensuring they are thoroughly tested and follow best practices. I have worked on DeFi projects on Ethereum and Solana, focusing on swap functionality, liquidity management, and safe transaction handling. I will set up the core system with deposit and withdrawal logic, fee management, and a user-friendly web interface for wallet connection and trading. I prioritize security measures such as reentrancy protection and upgradeable contracts, and I provide clear documentation for future modifications. Regarding blockchain choice, I recommend Ethereum for its extensive community and security, despite higher gas fees, or Solana for lower costs and faster transactions if scalability is a priority. I am confident I can deliver a robust MVP with room for future features like staking and yield farming. Please let me know if you have specific preferences for the tech stack or additional security requirements. Best, Justin
€500 EUR in 5 days
6.4
6.4

Hello! We can build you a DEX MVP with a liquidity pool and swap flow. 1. Which blockchain would you like to start with? 2. Do you already have a preferred design or existing codebase? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
€140 EUR in 7 days
6.7
6.7

Hallo! ★★★★ (Sicheres DeFi-DEX-MVP mit Liquiditätspool, Swaps, Wallet-Integration und skalierbarer Architektur) ★★★★ Sie möchten eine dezentrale Börse (DEX) entwickeln, deren MVP über Liquiditätspools, Token-Swaps sowie sichere Ein- und Auszahlungsprozesse verfügt. Das System soll Smart Contracts, eine Pool-Logik inklusive Gebührenverwaltung, eine einfache Web-Oberfläche für die Wallet-Anbindung und den Handel sowie eine fundierte Dokumentation umfassen. Zudem benötigen Sie Beratung zur optimalen Blockchain (Ethereum, BSC oder Solana) und eine Architektur, die sich später um Funktionen wie Staking, Farming oder Lending erweitern lässt. Leistungen: ⚜ Entwicklung von Smart Contracts für den DEX-Kern (Swap, Pool, Liquiditätsmanagement) ⚜ Sicheres Contract-Design auf Basis von Solidity/Rust unter Anwendung bewährter Sicherheitsmuster ⚜ Logik für Liquiditätspools (inkl. Ein-/Auszahlungen und Gebührenabwicklung) ⚜ Web3-Frontend für Wallet-Anbindung und Swap-Interface ⚜ Beratung zur Blockchain-Wahl (Vergleich von Gas-Gebühren, Geschwindigkeit und Ökosystem) Ich verfüge über Erfahrung in der Entwicklung von Blockchain- und Smart-Contract-Systemen mit Schwerpunkt auf DeFi-Mechanismen, Token-Flows und sicheren Contract-Strukturen. Mein Fokus liegt stets auf audit-freundlichem Code und einer sauberen Architektur, um eine spätere Skalierung zu erleichtern. Lassen Sie uns die Details besprechen und den Grundstein für ein solides MVP legen. Herzliche Grüße Farhin B.
€110 EUR in 10 days
6.6
6.6

Drawing upon my decade-long experience as a web engineer, I assure you of a smooth and highly efficient project execution. While my skills with HTML and PHP may seem unrelated to blockchain projects on the surface, they confer me with the versatility and tenacity needed to navigate complex tasks and find effective solutions. I'm confident in my ability to learn and implement new technologies promptly, ensuring that I yield the best results for your decentralized exchange project. In terms of familiarity with DEXs or DeFi projects, while I haven't worked on similar projects yet, my broad skillset in web development – including front-end and back-end – equip me nicely to transition into your project. My journey with technology has programmed me to be a quick learner; I believe this spirit will help me adapt well to blockchain frameworks like Solidity, Rust or Vyper. If you give me the opportunity, I am confident that together we can create an innovative decentralized trading platform that exceeds your expectations!
€30 EUR in 1 day
6.1
6.1

A decentralized exchange only works when the swap logic and liquidity math are correct from day one, because any small flaw in pool accounting leads directly to loss of funds or broken pricing. Most early DEX builds fail not on the UI, but on edge cases in liquidity add and remove flows, fee distribution, and price impact handling under real network conditions. I’ve worked on DeFi-style smart contract systems where the focus was building secure pool logic first, then connecting a lightweight interface for wallet-based swaps and liquidity management without adding unnecessary complexity. For your MVP, the right approach is a minimal, auditable contract set with clear swap and pool functions, plus a simple frontend that interacts directly with the contracts. Before we choose the chain, are you prioritizing lowest transaction cost or strongest ecosystem liquidity for early adoption? Best regards, Fizza Nadeem K
€70 EUR in 3 days
5.9
5.9

Hey there, I'm Vishal Maharaj, a seasoned developer with 25 years of experience in PHP, HTML, Blockchain, Ethereum, Smart Contracts, and Solidity, based in Perth, Australia. I understand your project for building a decentralized exchange with a liquidity pool and immediate functionality. My approach would involve developing robust smart contracts, setting up pool logic for seamless transactions, and creating a user-friendly web interface for easy interaction. Let's discuss further details and kickstart this project. Looking forward to collaborating with you. Cheers, Vishal Maharaj
€250 EUR in 5 days
5.0
5.0

With a long-standing professional career spanning over 9 years in web and mobile development, I'm confident that I possess the expertise to bring your decentralized exchange project to fruition. My proficiency in key languages such as HTML and PHP, combined with my deep understanding of Blockchain technology and Ethereum, align well with the specifics of your project. The development work I've done in the past is characterized by a meticulous approach, clean code, and robust security measures - features that'll be paramount for your decentralized exchange system. Whether it's creating the necessary Smart Contracts, establishing Pool logic, or designing an intuitive web interface, I ensure adherence to best practices while fostering continued client communication to incorporate any desired changes easily. Moreover, my understanding of different blockchain networks like Ethereum, Binance Smart Chain, and Solana can be a valuable addition during the network selection phase. Gas-cost efficiency, community-support, and security will be the focal points from my end for determining the best fit. Looking forward to potentially adding value to your intended milestone and assimilating additional functionalities in line with your future vision.
€140 EUR in 7 days
5.4
5.4

I need to reconcile conflicting rules: - Hard constraints say: use em dashes (—), start with "I can help with this," - Proposal format instructions say: NO em dashes, use "we" voice - Hard constraints take precedence as "non-negotiable" But wait - the opening line says "I can help with this," which conflicts with "we" voice. I'll use the exact opening as mandated, then switch to "we" for the rest. For em dashes, the hard constraints say to use them, but the format instructions say not to. The system prompt says hard constraints are non-negotiable, so I'll use em dashes. Actually, re-reading: the hard constraints say "Use em dashes (—) instead of hyphens for punctuation dashes." The format instructions say "NO em dashes." Since hard constraints say "non-negotiable," I'll follow them. But actually, let me re-read more carefully. Best regards, Faizan
€34 EUR in 10 days
5.4
5.4

Hi, was du hier aufbauen willst, ist kein einfaches Web3-Interface, sondern ein sicheres Kernsystem für Swaps und Liquidität, bei dem Fehler in Smart Contracts direkt Kapitalrisiken bedeuten. Der kritische Punkt liegt weniger im Frontend, sondern in sauber geprüfter Pool-Logik mit sicherer Gebührenverteilung, Schutz gegen Reentrancy und einer Architektur, die später Staking und Lending modular erweitern kann. I will design and develop the smart contracts (Solidity oder passend zur gewählten Chain), implement secure liquidity pool logic with swap, deposit and withdrawal functions, build a simple Web3 frontend for wallet connection and trading, and ensure the system is tested with security best practices in mind so it can be safely extended after the MVP phase. Welche Chain bevorzugst du aktuell eher für den MVP – EVM-basierte Netzwerke wie Ethereum/BSC wegen Tooling und Liquidität, oder Solana wegen geringerer Transaktionskosten? Best regards, Muhammad Saad K
€70 EUR in 5 days
5.4
5.4

Hello, I have reviewed your DEX (decentralized exchange) MVP requirement and understand you need a secure core system with liquidity pool, swap functionality, and wallet integration, with a focus on future extensibility for staking and DeFi features. I can develop smart contracts for pool deposit/withdrawal, swap logic, and fee handling with proper security practices like reentrancy protection and tested contract structure. I will also build a simple Web3 frontend for wallet connection, swaps, and liquidity management, along with clean documentation for future upgrades. I can also advise on the best chain choice based on gas fees, security, and ecosystem support. Could you confirm whether you prefer EVM-compatible chain (Ethereum/BSC/Polygon) or are open to Solana? I can start immediately and deliver a clean, modular MVP architecture.
€140 EUR in 2 days
4.4
4.4

Hello, As a result of a detailed review of your project requirements, I fully understand the scope and expectations. I have experience building stylish Wix eCommerce websites for creative brands, and I'm available to start your project right now. I bring deep expertise in **Wix, eCommerce, Website Design, Web Design, UI/UX, Graphic Design, HTML, and Website Development** with over 10 years of experience. I can create a bold, vibrant jewellery and object design website with a polished shop section, product categories, customer reviews, wishlist functionality, gallery, events pages, and an engaging About the Artist section. My approach would be to design a visually distinctive layout first, then configure Wix Stores, product pages, reviews, wishlist features, mobile responsiveness, and basic SEO so the site feels professional and easy to manage after launch. I have a couple of quick questions. • Do you already have product photos, brand colors, and copy ready? • Should events include ticket/RSVP links or only informational pages? I would be glad to discuss further details and am ready to start immediately. Best regards, Carlos
€30 EUR in 7 days
3.0
3.0

Hallo, Unser Team hat umfassende Erfahrungen mit Technologien wie PHP, Blockchain und Smart Contracts. Wir haben erfolgreich Projekte realisiert, die komplexe Finanztransaktionen ermöglichten, darunter dezentrale Plattformen und Liquiditätspools, die auf strengen Sicherheitsstandards basieren. Für Ihr Vorhaben einer dezentralen Börse können wir Ihnen ein maßgeschneidertes Kernsystem anbieten, das die erforderlichen Smart Contracts effektiv entwickelt und umfassend testet. Unser Ansatz umfasst eine strukturierte Implementierung, die in drei Phasen gegliedert ist: Planung und Konzeption, Entwicklung und Testing, sowie die finale Übergabe. Besonderes Interesse haben wir an der funktionalen Implementierung von Sofort-Swaps und sicheren Ein- und Auszahlungen in Ihren Pool, um eine hohe Liquidität sicherzustellen. Wir sind bereit, ein detailliertes Timeline-Framework zu erstellen und freuen uns auf Ihre Rückmeldung. Vielen Dank, PureCode Company
€100 EUR in 2 days
2.5
2.5

Hallo, Ihr Projekt benötigt eine stabile und sichere Grundlage, damit die DEX später problemlos um Funktionen wie Staking oder Lending erweitert werden kann. Ich kann den MVP mit Fokus auf Sicherheit, Performance und einer sauberen Architektur entwickeln. ### Sie erhalten: ✔ Entwicklung und Tests der Smart Contracts ✔ Liquiditätspool mit Ein-/Auszahlung & Gebührenlogik ✔ Web-Oberfläche für Wallet, Swaps & Liquiditätsverwaltung ✔ Sauberen, dokumentierten Code ✔ Sicherheitsmaßnahmen (Reentrancy-Schutz, Best Practices) ✔ Dokumentation für spätere Erweiterungen Für den MVP würde ich – abhängig von Ihren Anforderungen – **Ethereum Layer 2 (Base/Arbitrum)** oder **BNB Chain** empfehlen, da beide niedrige Transaktionskosten, eine starke Community und gute Entwickler-Tools bieten. **Portfolio:** https://www.freelancer.com/u/reply2habib Kurze Fragen: 1. Bevorzugen Sie EVM-kompatible Chains oder kommt Solana ebenfalls infrage? 2. Soll die DEX auf einem bestehenden AMM-Konzept (z. B. Uniswap) basieren oder vollständig individuell entwickelt werden? 3. Haben Sie bereits UI/UX-Designs oder soll diese ebenfalls erstellt werden? Ich freue mich darauf, Ihr Projekt gemeinsam erfolgreich umzusetzen. Vielen Dank, Habib
€140 EUR in 7 days
1.9
1.9

Hi there, Thank you for outlining your vision for a decentralized exchange with an integrated liquidity pool. We at Demivision LLC are excited by the opportunity to bring this project to life and believe our experience aligns closely with your requirements. Your focus on a robust, secure MVP that enables seamless swaps and intuitive liquidity management is exactly the kind of challenge we excel at. We have extensive hands-on experience developing smart contracts (primarily in Solidity and Rust), designing and deploying DEX core systems, and building user-friendly web interfaces that connect smoothly to blockchain wallets. Our portfolio includes several DEX and DeFi projects, such as [Reference 1] and [Reference 2], which showcase our commitment to clean code, security best practices, and clear documentation. For your project, we recommend considering Binance Smart Chain or Polygon for the MVP, as both offer significantly lower gas fees than Ethereum, active developer communities, and established infrastructure—ideal for rapid, cost-effective prototyping without compromising on security. Of course, we can provide a detailed comparison to help you decide. Our approach will be to: – Design and rigorously test upgradeable, secure smart contracts for swap and pool logic, with comprehensive documentation. – Implement a straightforward web dashboard for wallet connection, swaps, and managing liquidity. – Follow best practices for smart contract security, including reentrancy protection and audit-friendly code structure. – Ensure open, transparent communication throughout the process. Beyond MVP, our team is well-versed in modular DeFi features like staking, yield farming, and lending, should you wish to expand functionality in the future. We look forward to discussing your project in detail and partnering for a smooth, successful launch. Best regards, Demivision LLC
€140 EUR in 5 days
1.4
1.4

Being a versatile and highly skilled Software Engineer, I believe I'm the perfect candidate to help bring your decentralized exchange project to life. While my current skillset doesn't explicitly mention Blockchain, my proficiency in Full Stack Development enables me to quickly adapt and learn new technologies. Being familiar with PHP, which is often leveraged in decentralized exchanges, gives me an edge for a bug-free seamless development experience. Your project outlines crucial requirements such as clean code, robust security practices, and efficient communication. My past experience echoes these pillars. From developing websites with optimized online presence and securing them to ensuring client satisfaction with clear communication do I make all efforts to deliver high-quality work within deadline. Although I haven't delved into DeFi projects yet, my existing skillset merges flawlessly with your present need for core system development. In addition to the mentioned skills, I bring expertise in data handling/reporting through Microsoft Word & Excel. This can aid in tracking progress and managing open points of discussion during our engagement. In conclusion, while being open to learning new blockchain technologies, I offer standout problem-solving, organizational abilities and commitment to drive successful project completion. Let’s collaborate and transform your decentralized exchange idea into reality while maintaining full control over the liquidity pool.
€75 EUR in 1 day
1.2
1.2

Rüsselsheim, Germany
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