
Closed
Posted
Paid on delivery
BitQube Decentralized Trading Engine We are looking for an experienced blockchain developer/team to develop a non-custodial decentralized order-book trading platform for the BitQube ecosystem. Initial Trading Markets The MVP will support only: * BTQ / USDT * BTQ / QUBX The objective is to provide a simple decentralized trading platform for BitQube miners, holders and ecosystem users. Core Requirements * Central Limit Order Book (CLOB) * Buy and Sell orders * Market and Limit orders * Order matching engine * Real-time order book * Trade history * Wallet connection * Non-custodial architecture * BTQ blockchain integration * QUBX integration * USDT integration * Deposits and withdrawals * On-chain settlement where technically feasible * Transaction confirmation tracking * Basic trading fee mechanism * Order cancellation * Failed/expired order handling * Basic API/WebSocket support Blockchain Architecture BTQ is a Ravencoin-derived PoW blockchain using KawPoW. The developer must evaluate the BTQ blockchain and determine the safest architecture for decentralized trading. We are not looking for a generic EVM/AMM DEX. We are interested in an order-book trading model, with potential approaches including: * Decentralized order book + on-chain settlement * P2P trading * Atomic swap / HTLC-based settlement * Other genuinely non-custodial solutions The developer should recommend the most practical architecture after reviewing the BTQ blockchain. Initial User Flow BTQ / USDT User connects wallet → views BTQ/USDT order book → places Buy/Sell order → orders are matched → settlement occurs → user receives the purchased asset BTQ / QUBX User connects wallet → views BTQ/QUBX order book → places Buy/Sell order → orders are matched → settlement occurs → user receives BTQ or QUBX Non-Custodial Requirement The platform must not take custody of user funds. Users should control their own wallets/private keys and authorize transactions themselves. The platform should not have an unrestricted ability to withdraw user assets. Phase 1 — Technical Feasibility Before full development, the developer should provide: 1. BTQ blockchain compatibility assessment 2. Recommended DEX/order-book architecture 3. Recommended settlement mechanism 4. Feasibility of BTQ/USDT atomic settlement 5. Feasibility of BTQ/QUBX settlement 6. Required BTQ blockchain modifications, if any 7. Open-source technology that can be reused 8. Estimated development timeline 9. Estimated development cost Phase 2 — MVP Develop a working platform supporting: BTQ/USDT + BTQ/QUBX with: Wallet → Order Book → Order → Matching → Settlement → Trade History The MVP should prioritize security, reliability and simplicity rather than a large number of features. Preferred Experience Strong preference for developers with experience in: * DEX development * CLOB/order-book exchanges * P2P DEX * Atomic swaps / HTLC * Bitcoin/UTXO-based blockchains * Ravencoin or Ravencoin-derived chains * Blockchain RPC * Wallet integration * Decentralized settlement Open-Source Approach We prefer adapting proven open-source DEX/order-book infrastructure where the license permits, rather than building everything from scratch. Developer should identify suitable existing projects and explain what modifications would be required for BTQ. Partnership Opportunity We are open to: * Fixed-price development * Milestone-based development * Lower upfront cost + revenue share * Technical partnership Developers interested in becoming a long-term BitQube technical partner are welcome. Proposal Requirements Please provide: * Previous DEX/order-book projects * UTXO/Bitcoin/Ravencoin experience * Proposed architecture * Open-source frameworks you recommend * BTQ integration approach * USDT settlement approach * Estimated timeline * Development cost * Security/audit approach * Long-term maintenance cost * Partnership/revenue-share proposal, if interested Important: Please do not propose a generic PancakeSwap/Uniswap clone. The requirement is specifically for a non-custodial decentralized order-book trading engine supporting BTQ/USDT and BTQ/QUBX.
Project ID: 40675200
11 proposals
Remote project
Active 3 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
11 freelancers are bidding on average ₹65,473 INR for this job

As a full-stack developer with a strong background in blockchain technology, including an expertise in Ravencoin-derived chains, I believe I am ideal for the task at hand: creating a non-custodial DEX for the BitQube ecosystem. As your project description highlighted the need for someone who understands BTQ's technology intricacies and can design genuinely non-custodial solutions, my past experience in working on decentralized, order-book trading platforms and atomic swaps/HTLCs becomes invaluable. In addition to my experience in DEX and CLOB/order-book exchanges development, I can offer you a strong understanding of UTXO-based blockchains and Blockchain RPC/Wallet integration. Alongside this, my domain knowledge of P2P DEX and decentralized settlements is another strength which aligns perfectly with your project requirements. Additionally, since you are a proponent of open-source approach, I will leverage existing proven open-source DEX/order-book infrastructure where licenses permit to save time and enhance usability.
₹40,000 INR in 7 days
4.4
4.4

Hi, I understand you need a non-custodial CLOB-based DEX specifically for BTQ/USDT and BTQ/QUBX—not a generic EVM/AMM solution. The key challenge will be evaluating BTQ’s Ravencoin/UTXO architecture and selecting the safest practical settlement model. My approach: I’ll first audit BTQ’s blockchain/RPC/wallet capabilities, evaluate atomic swaps/HTLC, P2P, and on-chain settlement options, and recommend the most reliable architecture. Then I’ll build the MVP around wallet connection → order book → matching engine → settlement → trade history, with transaction tracking, cancellation, fees, and WebSocket/API support. I’d also look for proven open-source order-book/DEX components that can be adapted rather than rebuilding everything from scratch. A few questions: ================== Do you have BTQ mainnet/testnet RPC and wallet documentation/API access available? Is QUBX a native UTXO asset, token, or does it use another infrastructure? Do you already have preferred open-source DEX/order-book infrastructure, or should I evaluate suitable options? I’d recommend starting with Phase 1 feasibility/architecture before committing to the full MVP, particularly for BTQ/USDT and BTQ/QUBX atomic settlement. This will reduce technical and security risks and give you a realistic timeline and cost before development begins.
₹70,000 INR in 25 days
4.1
4.1

I've spent 20+ years in full-stack and on-chain engineering, including non-custodial decentralized exchanges with an order-book trading engine and wallet-based custody, which is exactly the BitQube engine. A non-custodial order-book DEX is won on the parts that must never go wrong: matching and settlement that stay correct under load, and custody that stays with the user's wallet the whole time. What I'd do: - Smart contracts for non-custodial trading and settlement, tested hard on a fork or testnet. - An order-book and matching layer, on-chain or hybrid, sized for your expected volume. - A web front end with wallet connect, live order book and clear transaction states. - Security passes on the contracts before anything touches mainnet. You get a decentralized order-book exchange where users keep custody and trades settle correctly, tested before mainnet. One thing to confirm: which chain is BitQube on, and is the order book fully on-chain or a hybrid with on-chain settlement? I can start right away.
₹60,000 INR in 21 days
2.7
2.7

I’m excited to bring my deep expertise in UTXO‑based DEX development to the BitQube ecosystem. With a proven track record building secure, non‑custodial order‑book engines on Ravencoin and related chains, I can deliver a robust BTQ/USDT and BTQ/QUBX platform that prioritizes on‑chain settlement, atomic swaps, and user‑controlled wallets. **Phase 1 – Technical Feasibility**: I’ll audit BTQ’s RPC and wallet interfaces, evaluate atomic‑swap viability with USDT, and recommend a modular CLOB architecture leveraging open‑source projects like 0x or Uniswap V3 adapted for UTXO. I’ll provide a detailed architecture diagram, settlement strategy (HTLC‑based or P2P), and a realistic timeline and budget. **Phase 2 – MVP**: I’ll build a lightweight, responsive UI with wallet‑connect, real‑time WebSocket book updates, and a deterministic matching engine. All trades will be settled on‑chain or via HTLC, ensuring users retain full custody. Security will be baked in from the start with formal audit plans and unit tests. I can deliver the full MVP in 8–10 weeks, with a fixed‑price scope of $42,000, inclusive of audit and post‑launch maintenance. If you’re open to a partnership, I’m happy to discuss revenue‑share or milestone‑based arrangements. I look forward to collaborating with BitQube to launch a pioneering non‑custodial DEX that meets your ecosystem’s unique needs.
₹75,000 INR in 7 days
2.4
2.4

Greetings I am Erinc I am a Web Developer since 2020 knowledgeable in Bitcoin and Blockchain. I can confirm I will provide the non-custodial decentralized order-book trading platform for bitqube you're looking for under your budget. I am available to start right now and regularly on desk everyday. Looking forward to hear from you. Thanks for your consideration.
₹38,000 INR in 24 days
0.6
0.6

With my extensive background in full-stack development, I am confident that I can leverage my skills and experience to successfully deliver BitQube's non-custodial decentralized trading platform. In addition to my profound knowledge in platforms like WordPress and Shopify, I possess expert-level competencies in Blockchain RPC, wallet integration, DEX development and decentralized settlement - which attune well with the core requirements sought by BitQube. Furthermore, my adeptness with Ravencoin and Ravencoin-derived chains will allow me to seamlessly identify and implement the most suitable open-source DEX/order-book infrastructure for the BTQ blockchain. I excel in providing clean code, prioritizing performance and security optimization and considering long-term maintenance costs –qualities much sought after for this project. My solutions are always tailored to meet real business needs which aligns beautifully with BitQube’s focus on reliability and simplicity over complex features for their MVP. As someone experienced in providing not just final products but maintaining long-term partnerships, I would be thrilled at the prospect of becoming a long-term technical partner of BitQube. My familiarity with Milestone-based development and supported lower upfront cost options reinvigorate our potential partnership even further.
₹80,000 INR in 7 days
0.0
0.0

Hydrabad, India
Payment method verified
Member since Dec 16, 2010
₹1500-12500 INR
₹600-1500 INR
$250-750 USD
₹12500-37500 INR
₹75000-150000 INR
₹600-1500 INR
$5000-10000 USD
₹1000-15000 INR
₹12500-37500 INR
₹12500-37500 INR
₹12500-37500 INR
$5000-10000 USD
£20-250 GBP
₹75000-100000 INR
₹1500-12500 INR
$25-50 USD / hour
€30-250 EUR
₹37500-75000 INR
$250-750 USD
$750-1500 USD
$15-25 CAD / hour
$30-250 USD
₹37500-75000 INR
$8-15 USD / hour
₹37500-75000 INR