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Requirements – Technical Stack (MANDATORY): Minimum 3 years hands-on experience with OpenCEX Polygan platform Deep knowledge of Python and Django Experience with Gunicorn, ASGI, Daphne, WebSockets Proficient with Docker & Docker Compose (multi-container setups) Strong SQL & PostgreSQL skills (indexes, joins, optimizations) Comfortable with CI/CD pipelines, GitHub Actions Experience managing production/staging environments & logs Familiar with PyCharm or similar IDEs Solid Linux/Ubuntu Server experience Strong understanding of security practices for crypto platforms Experience with production monitoring & alerting (logs, metrics, tracing) Experience with Angular (v15–v21) & PrimeNG, TailWind Role Responsibilities: Full backend ownership of the OpenCEX platform Integration of new crypto tokens and standalone coins (via RPC, API, Explorer) Ensure scalability, performance, uptime, and security Manage Dockerized infrastructure, databases, and monitoring Collaborate directly with the founder on architecture and product direction Lead the backend roadmap and mentor future tech hires DevOps knowledge (NGINX, Docker Registry, reverse proxies) Past contributions to open-source or blockchain projects Position Details: 100% Remote Full-time commitment Equity-based partnership (not salaried): Year 1: 5% of net profits Year 2: 6% Year 3 and beyond: 7% DevOps knowledge (NGINX, Docker Registry, reverse proxies) Past contributions to open-source or blockchain projects Why Join Pool4Ever? Join as a true partner, not just a developer Help shape a live and revenue-generating blockchain platform Work with full backend autonomy and creative freedom Leverage a fully operational private infrastructure (no cloud dependency) Legal structure and equity framework are already in place Year 3 and beyond: 7% DevOps knowledge (NGINX, Docker Registry, reverse proxies) Past contributions to open-source or blockchain projects. This bid amount is submitted solely for the purpose of initiating and signing the agreement. The final project pricing will be determined after a full evaluation, detailed requirements analysis, and mutual agreement on scope. *** MANDATORY PRE-SCREENING TASK (NO EXCEPTIONS) *** : To proceed, you MUST include the following in your BID: 1. Confirm that you have cloned and successfully run the OpenCEX project locally: [login to view URL] 2. Provide a remote view live screen of the running project (frontend + backend or API response) 3. Answer this question (to verify real understanding): - What is the role of Daphne/ASGI in this project architecture? 4. Confirm your estimated time to complete this setup (should not exceed 24–72 hours) 5. Confirm your availability for a short video interview after completing the task Bids without ALL of the above will be automatically rejected WITHOUT review. - After successful completion of the task, a video meeting will be required prior to contract signing. Max Bid: $100 - (Contract Signing Only) * HIGHER BID WILL BE REMOVE AND BLCOK *
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51 freelancerit tarjoavat keskimäärin $230 USD tätä projektia

⭐⭐⭐⭐⭐ Build and Manage the OpenCEX Platform with Python and Django ❇️ Hi My Friend, I hope you're doing well. I've looked over your project requirements and see you are looking for a backend developer for the OpenCEX platform. You've come to the right place; Zohaib is here to assist you! My team has completed over 50 similar projects in backend development. I will ensure scalability, performance, and security while managing Dockerized infrastructure and databases, all within your budget. ➡️ Why Me? I can efficiently handle your OpenCEX platform needs as I have over 3 years of experience with the OpenCEX Polygon platform, Python, and Django. My expertise includes Docker, SQL, and CI/CD pipelines. Additionally, I have a strong grip on production monitoring and security practices for crypto platforms. ➡️ Let's have a quick chat to discuss your project further and let me share samples of my previous work. I'm excited to explore this opportunity with you! ➡️ Skills & Experience: ✅ Python ✅ Django ✅ OpenCEX Polygon ✅ Docker ✅ SQL ✅ PostgreSQL ✅ CI/CD Pipelines ✅ WebSockets ✅ Linux/Ubuntu ✅ Angular (v15–v21) ✅ PrimeNG ✅ TailWind Waiting for your response! Best Regards, Zohaib
$150 USD 2 päivässä
7,9
7,9

HELLO, I HAVE EXPERIENCE WORKING WITH CRYPTO PLATFORMS, DOCKERIZED SYSTEMS, AND HIGH-AVAILABILITY BACKENDS AND CAN SHARE RELEVANT WORK I UNDERSTAND YOUR REQUIREMENT FOR FULL BACKEND OWNERSHIP OF AN OPENCEX PLATFORM WITH FOCUS ON PERFORMANCE, SECURITY, AND SCALABILITY. I BRING 10+ YEARS OF EXPERIENCE WITH PYTHON, DJANGO, POSTGRESQL, AND PRODUCTION SYSTEMS, INCLUDING WEBSOCKETS (ASGI/DAPHNE), DOCKERIZED DEPLOYMENTS, AND CI/CD PIPELINES USING GITHUB ACTIONS. I AM ALSO COMFORTABLE WITH LINUX SERVER MANAGEMENT, NGINX, AND MONITORING SETUPS. I HAVE EXPERIENCE IN API/RPC INTEGRATIONS AND CAN HANDLE TOKEN/COIN INTEGRATIONS, ORDER FLOW, AND REAL-TIME SYSTEMS WHILE ENSURING SECURITY BEST PRACTICES FOR CRYPTO ENVIRONMENTS. TECH STACK → Python, Django, PostgreSQL, Docker, WebSockets, NGINX, CI/CD I AM READY TO TAKE FULL OWNERSHIP, CONTRIBUTE TO ARCHITECTURE DECISIONS, AND SCALE THE PLATFORM WITH A LONG-TERM PARTNERSHIP MINDSET. I ACCEPT YOUR TERMS AND CAN START IMMEDIATELY. I WILL PROVIDE COMPLETE SOURCE SUPPORT, 2 YEARS FREE ONGOING SUPPORT, AND WORK CLOSELY FROM DEVELOPMENT TO PRODUCTION STABILITY I EAGERLY AWAIT YOUR POSITIVE RESPONSE THANKS
$140 USD 7 päivässä
6,7
6,7

I'm Iosif Peterfi, 15+ years delivering secure, scalable platforms for ambitious teams navigating crypto and cloud. This is my speciality: building resilient backend platforms for crypto services with strong security, governance, and seamless token integrations. You're seeking full backend ownership of the OpenCEX platform, onboarding new tokens and standalone coins via RPC, API, and Explorer, while ensuring scalability, uptime and security. You want Dockerized infrastructure with solid logs and CI/CD, production and staging discipline, and close collaboration with the founder on architecture and product direction, plus mentoring future tech hires and contributing to open-source. This is an equity-based, remote collaboration designed to turn ideas into a live, revenue-generating platform. I'll deliver a unified backend scope with token integration playbooks, stable deployment practices, strong security controls, and clear governance. You'll get a predictable roadmap, production-ready stacks, proactive monitoring, and a clear path for growth. Milestones include scope alignment, token integration planning, production readiness, monitoring enablement, and knowledge transfer. Risks are mitigated with staged deployments, formal reviews, and thorough documentation to keep the platform resilient and compliant.
$4 200 USD 21 päivässä
6,9
6,9

Hi, To ensure full backend ownership of the OpenCEX platform, I will leverage my 3+ years of experience with Python and Django. I will manage the integration of new crypto tokens and standalone coins using RPC and API, while ensuring scalability, performance, uptime, and security. I will utilize Docker and Docker Compose for a multi-container setup, and implement CI/CD pipelines with GitHub Actions to streamline deployments. My strong SQL and PostgreSQL skills will help optimize database performance, and I will monitor production environments to maintain high availability. Could you clarify if there are specific crypto tokens you want to integrate initially? Also, what is your preferred method for communication and file sharing? Let's chat more about this project and share any details or access needed to start. Thanks!
$900 USD 30 päivässä
6,3
6,3

Hi there, I understand you're looking for a Senior Full Stack Software Engineer to take ownership of the OpenCEX platform, ensuring scalability, performance, and security. I'm excited about the opportunity to collaborate and contribute to the project's success. - Full backend development and integration of new crypto tokens - Management of Dockerized infrastructure and databases - Implementation of CI/CD pipelines and monitoring - Collaboration on architecture and product direction **Skills:** ✅ Python and Django ✅ Docker and Docker Compose ✅ PostgreSQL and SQL ✅ Linux/Ubuntu Server Looking forward to discussing the project further.
$107 USD 1 päivässä
5,7
5,7

Hi, As a individual developer and I can jump into on your suitable time. I can help in your project, focusing on backend ownership of your OpenCEX platform, token integrations via RPC/API, Dockerized infrastructure, PostgreSQL optimization, and maintaining performance, security, and uptime across production environments. With my expertise in full-stack development and experience working with modern web technologies like Python, Django, PostgreSQL, Docker, CI/CD pipelines, Linux servers, WebSockets, and Angular with PrimeNG and Tailwind, i can fix this quickly. I have experience working on complex backend systems with real-time data, API integrations, and scalable architectures, and I can collaborate directly on system design while ensuring clean, secure, and maintainable code across your infrastructure. You can expect clear communication, fast turnaround, and a high-quality result that fits seamlessly into your existing workflow, and I’m comfortable starting with the contract bid and aligning on full scope and pricing after evaluation. Best regards, Juan
$140 USD 1 päivässä
5,8
5,8

Hello, I’ve gone through your requirement for a senior engineer with direct OpenCEX Polygon experience, especially around token integration, production scalability, and containerized infrastructure. That combination tells me you need someone who can take full backend ownership without hand-holding. I’ve previously led two exchange backend rebuilds where I delivered optimized PostgreSQL pipelines, integrated multiple RPC-based coins, and refactored Django services behind Gunicorn and ASGI to handle real-time WebSocket loads. The real complexity here isn’t just Django or Docker, it’s managing a live crypto platform where security, uptime, and operational observability must all be engineered together. A junior dev misses how indexing strategies, RPC latency, and container orchestration quietly impact trading flow and platform reliability. I’ll review the existing OpenCEX setup, harden the Dockerized services, stabilize ASGI/Django concurrency, and structure monitoring for logs, metrics, and tracing. I’ll also outline a roadmap for safe token/coin integrations and CI/CD improvements. Before starting, I need clarity on your current on-prem infrastructure and how deployments are handled today. This aligns well with a contract-signing phase. Sincerely, John allen.
$155 USD 1 päivässä
5,5
5,5

Hello, As a senior full-stack software engineer with over 8 years of experience, I'm confident that I am the perfect fit for your OpenCEX project. I have solid hands-on experience with the entire technical stack you've listed, including the OpenCEX Polygan platform, Python, Django, Gunicorn, ASGI, Daphne, WebSockets, Docker & Docker Compose for multi-container setups.I'm also well-versed in SQL and PostgreSQL for efficient database management. Plus, my experience with CI/CD pipelines and GitHub Actions will help to ensure a smooth workflow. Not only do I have the technical expertise required for the role, but I am also well-versed in blockchain projects and understand the security practices necessary in a crypto platform. I have developed AI-powered web and mobile applications, automated business processes using AI agents & APIs. Thus my skills match your project need of integrating new crypto tokens and maintaining production environment. Ultimately, what sets me apart from other freelancers is my commitment not just as a participant but as your partner. Choosing me means gaining a developer who deeply understands your project vision and can contribute to its growth by leveraging my substantial backend and DevOps experiences.
$250 USD 7 päivässä
5,6
5,6

Hello, I can deliver what you need. I’ve carefully reviewed your requirements, and this is essentially the same type of project I completed two months ago. I am a skilled freelancer with 6+ years of experience in Python, Angular, Blockchain, Django, PostgreSQL and I can deliver the results as quickly as possible. Feel free to visit my profile to check latest work and feedback from clients. Let us make this great together, please connect in chat. Talk soon.
$100 USD 7 päivässä
5,2
5,2

Hi, I am a full-stack backend engineer with 8 years of rich experience with a background in Python, Django, PostgreSQL, Docker, and Linux infrastructure. For this project, the most important part is maintaining a secure and stable backend while scaling the system for performance and reliability in a crypto environment. I can manage Dockerized services, optimize database performance, handle API/RPC integrations, and ensure monitoring, logging, and CI/CD pipelines are clean and production-ready. I'm an individual freelancer and can work on any time zone you want. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.
$250 USD 7 päivässä
4,7
4,7

Hi, crypto platforms usually break at scale because backend ownership, security, and infrastructure are not handled deeply enough from the start, especially with token integrations and real time systems. I have worked on a very similar project recently where I handled backend development for a trading platform using Python and Django with WebSockets, Docker based deployment, and PostgreSQL optimization. I also worked on integrating external APIs, managing environments, and ensuring uptime with proper monitoring and logging. From your post, I understand you need full backend ownership of an OpenCEX based platform, including token integrations via RPC or APIs, managing Docker infrastructure, handling performance and security, and working closely on architecture decisions. This also involves maintaining production environments, optimizing database queries, and ensuring stable real time communication. I can help here because I am comfortable working across backend, DevOps, and system level decisions, especially in data heavy and real time systems. I would like to ask, is the current OpenCEX setup already deployed in production or still evolving in staging? Also, how are you currently handling monitoring and alerts across services? Happy to discuss the platform and next steps. Regards Ali Zain!
$100 USD 7 päivässä
4,8
4,8

Hello, I’m a full-stack developer with 10+ years of experience working on high-performance systems, real-time platforms, and DevOps-heavy architectures. While I haven’t worked specifically on OpenCEX, I do have strong experience with: • Python/Django + PostgreSQL (query optimization, indexing, scaling) • Dockerized infrastructures (multi-container, CI/CD, GitHub Actions) • WebSockets / real-time systems • Linux server management (Ubuntu, NGINX, reverse proxies) • Secure system design (auth, rate limiting, data integrity) How I would approach your platform • Take full backend ownership with a structured audit first • Harden security (wallet handling, API validation, anti-abuse layers) • Optimize DB + services for high concurrency and uptime • Standardize deployment (Docker + CI/CD + monitoring stack) • Design token integrations (RPC/API/explorer-based) in a modular way Important note (honest feedback) Crypto exchange platforms require extreme security rigor (wallets, withdrawals, exploits). I will not “move fast and break things”—I focus on safe, production-grade systems. On compensation I understand the equity model. I’m open to it only if: • Clear technical ownership is defined • Codebase + infra access is granted fully • There is alignment on long-term roadmap Availability: Full-time Timezone: IST (flexible overlap) Let's talk!
$100 USD 7 päivässä
4,6
4,6

Hi, I have extensive experience with the technical stack required for the Senior Full Stack Software Engineer position. . Please start the chat for further discussion. Regards, Sai Bhaskar
$100 USD 2 päivässä
4,4
4,4

Dear Client, I’m Md Ruhul, a senior full-stack developer with 10+ years of experience in Python, Django, Dockerized systems, and high-performance backend architectures. I have strong expertise in PostgreSQL optimization, CI/CD pipelines, Linux server management, and secure API integrations. I understand you need full backend ownership of an OpenCEX platform, including token integrations, scalability, monitoring, and infrastructure management. I’ve worked on similar systems involving REST/WebSocket services, container orchestration, and production-grade deployments. I can ensure secure, scalable architecture and collaborate closely on product direction while mentoring future developers. I’m comfortable with equity-based partnerships and long-term commitment. Bid submitted as requested for contract initiation. Best regards, Md Ruhul
$85 USD 3 päivässä
4,0
4,0

Hi there. Which OpenCEX Polygon repo/version are you running now, and how are token integrations handled today, direct RPC nodes or third-party APIs? Is your infra already split between Gunicorn and ASGI for WebSockets, or do you need a full setup with Docker, Nginx, and monitoring from scratch? This is a strong backend ownership role, and the best way is to stabilize the core stack first, then optimize token integrations, scaling, and monitoring for production reliability. Clean Docker setup, PostgreSQL tuning, and secure RPC handling will be key for uptime and growth. A similar blockchain backend was handled before with token integrations, high-availability services, and containerized infra. The main challenge was keeping performance stable while handling multiple RPC calls, WebSockets, and real-time updates. That was solved by optimizing DB queries, structuring async services with ASGI, and building a solid CI/CD and monitoring flow. Background as senior software engineer and security auditor in DeFi helps handle both scaling and risk. Ready for long-term ownership and immediate start. Best, Ivan
$100 USD 2 päivässä
3,6
3,6

Hello, I have 11+ years of experience as a Senior UI/UX and Front-End Developer, delivering high-quality, user-focused web solutions. I specialize in building clean, scalable, and pixel-perfect interfaces that ensure smooth performance across all devices and browsers. My focus is not just on development, but on creating fast, SEO-friendly, and conversion-optimized experiences. ? “Here’s what I deliver:” ✅ • Frontend: HTML, CSS, SASS, Tailwind CSS, Bootstrap • JavaScript: JavaScript, jQuery, React, Angular • Platforms: Shopify, WordPress, Webflow • UI/UX: Responsive design, animations, performance optimization I’m available to start immediately and would be happy to discuss how I can add value to your project. Best regards, Nirbhay
$140 USD 2 päivässä
3,1
3,1

I’m eager to help build and scale your OpenCEX platform, ensuring it stays secure, high-performing, and seamless. With experience designing backend systems for diverse tech projects, I’m confident I can deliver solutions that fit your evolving needs. My background includes strong expertise in Python and Django, working extensively with Docker, PostgreSQL, and WebSockets to create clean, automated environments. I understand the importance of integrated monitoring and smooth CI/CD pipelines to maintain uptime and security on crypto platforms. I’d love to chat about how to take ownership of the backend roadmap and contribute long-term. Let’s keep things secure and a little fun. Let’s have a chat, Alicia
$200 USD 14 päivässä
3,3
3,3

With over 3 years of hands-on experience with OpenCEX Polygan platform and an in-depth knowledge of Python, Django, Gunicorn, ASGI, Daphne, and WebSockets, I am confident in my ability to fulfill all the technical requirements of this project. My proficiency with Docker & Docker Compose is well-suited for managing the multi-container setups related to your production and staging environments. Additionally, my strong SQL & PostgreSQL skills will ensure efficient data management on your platform which is crucial for any crypto platform. I am no stranger to DevOps and CI/CD pipelines having worked extensively with Linux/Ubuntu Servers, GitHub Actions, NGINX, Docker Registry, and reverse proxies. This helps me bring a holistic approach to my work wherein I ensure consistent performance, security, uptime through reliable monitoring & alerting systems. I've also had experience working on production and staging environments to guarantee the best results possible. Last but not least, my contribution to open-source and blockchain projects highlights my passion for cutting-edge technologies which is something your project clearly aligns with. My bid symbolizes my serious intent in this partnership and bears due respect for the contractual agreement process. Your contract values collaboration and autonomy, these are qualities that fuel my drive to deliver the best possible solution.
$100 USD 7 päivässä
3,2
3,2

Hello, I’m excited to submit my proposal for the Pool4Ever backend role. I bring strong hands-on experience with Python and Django, along with solid expertise in Docker, PostgreSQL optimization, and Linux server environments. I am comfortable working with Gunicorn, ASGI, WebSockets, and managing production systems with monitoring, logging, and CI/CD pipelines using GitHub Actions. My background includes building scalable backend architectures, handling secure systems, and working with blockchain integrations via APIs and RPC. I am confident in taking full backend ownership of the OpenCEX platform, ensuring performance, uptime, and security while managing Dockerized infrastructure and databases. I also have working experience with Angular and modern frontend tools, enabling smooth collaboration across the stack. I am highly interested in joining as a long-term partner, contributing to product direction, and helping scale a live blockchain platform. I understand the equity-based structure and am comfortable proceeding with initial agreement terms while defining full scope collaboratively.
$250 USD 7 päivässä
2,9
2,9

Hi there, You’re absolutely in the RIGHT PLACE. I’ve delivered SIMILAR PROJECTS multiple times and know EXACTLY how to execute this efficiently and correctly from day one. To lock down the SCOPE, TIMELINE, AND PRICING, I’ll need to ask you a few key questions. Unfortunately, Freelancer’s 1500 CHARACTER LIMIT doesn’t allow me to break everything down properly here. Let’s jump on CHAT so I can show you my PROVEN PAST WORK, walk you through the REAL RESULTS I’ve delivered, and outline a CLEAR ACTION PLAN for your project. You’ll immediately see why my approach is DIFFERENT and EFFECTIVE. If you’re serious about getting this done RIGHT, I’m ready to move forward. Looking forward to CONNECTING and WINNING TOGETHER. Cheers, Mayank Sahu
$140 USD 7 päivässä
2,8
2,8

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