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- Vention
Developer20 days ago$35–$50 hourlyFull-timeManhattan, New YorkWe are looking for an experienced game developer to build a standalone, provably fair betting module that integrates securely via API with our existing socifi platform. The selected developer will NOT have access to our casino’s source code but will work on an isolated module that connects to our platform through predefined API endpoints. This ensures security while enabling seamless integration into our system. - You will develop a separate game backend and frontend - It must be built on a provably fair gaming system using blockchain/cryptographic verification - It will interact with our casino platform - All game transactions will be recorded in our existing Back Office - Real-time WebSockets will be used for price updates & bet execution Key Responsibilities: Develop a standalone betting module (backend + frontend). Implement real-time price updates using Binance WebSocket API. Build a scalable WebSocket server to handle thousands of users. Implement betting logic (users place bets on live crypto prices). Ensure fair bet settlement based on final price at the end of each round. Implement provably fair gaming using cryptographic verification (e.g., SHA-256, Ethereum smart contracts, or Chainlink VRF). Validate user authentication Check & update player balances Store bet transactions & results in Back Office Ensure the game runs at maximum speed, even under high traffic loads. Optimize WebSocket connections to prevent lag & ensure ultra-low latency. Develop a React.js frontend matching our casino UI/UX. Ensure secure, fair, and high-performance game logic. Write clean, modular, and well-documented code. Required Skills & Experience: Game Development Experience (Must Have) Node.js (Express/Nest.js) – WebSocket Development Blockchain (Ethereum, Solana, or similar) – Smart Contracts for Provably Fair Gaming WebSockets (Socket.io, Redis Pub/Sub) for real-time connections React.js – Frontend UI & WebSocket handling Binance WebSocket API – Live crypto price tracking Security Best Practices – Prevent exploits, fraud detection Scalability Knowledge – Handle high-concurrency users (100,000+ active connections) Preferred (Bonus) Skills: Experience with Game Development Knowledge of Trading Platforms / Forex / Crypto Betting Familiarity with MetaMask & Web3.js for crypto betting Performance & Scalability Requirements This game must be ultra-fast and highly scalable. To ensure this, the developer must implement: WebSockets Optimization (High-Speed Real-Time Connections) Must handle 100,000+ concurrent users without lag. WebSocket connections must be load-balanced using NGINX or AWS ALB. Database Performance MonogDB must be optimized for high-frequency transactions. Bets should first be stored before batch-writing to the database every second. Database partitioning & indexing must be applied to prevent slow queries. Binance WebSocket API (Live Price Updates) Prices must be cached for instant access to reduce API latency. Provably Fair System (Blockchain / SHA-256 Hashing) Users must be able to verify the fairness of the game using cryptographic proof. The game seed must be hashed before the round starts, ensuring that results cannot be manipulated. If blockchain-based, use Layer 2 solutions (Polygon, Solana) for speed instead of Ethereum. Security & Protection Against Cheating Rate-limiting & bot detection must be implemented to prevent abuse. Game logic must be auditable & verifiable to ensure fairness. DDoS protection (Cloudflare/AWS WAF) must be in place to prevent attacks. Failover & Auto-Scaling Must deploy multiple WebSocket servers behind a load balancer. Game must automatically scale up and down based on traffic demand. AWS or DigitalOcean must be used for auto-scaling server infrastructure. API-Driven Integration with Our Platform (Key Requirement!) Securely connect via wallet authentication, transactions & bet history Game data must be logged in our Back Office, so admin staff can view transactions Potential for ongoing work: Long-term collaboration possible Project Scope: Ensure API-driven architecture (no direct casino access) Implement real-time WebSockets for price updates Build & optimize betting logic with provably fair verification Deliver clean, scalable, and secure code Optimize for ultra-fast performance, scalability, and security Work closely with our lead developer for API integration Please submit: Your resume / portfolio showcasing or similar games you've built A short cover letter explaining your experience with provably fair gaming & WebSockets Links to live projects or GitHub repositories (if available) Your availability and estimated timeline for completion Looking forward talking more soon!
Immediate start!Easy apply - AA Driver Training Center
Front Desk Receptionist-Chinese speaking1 month ago$18–$19 hourlyPart-timeSunset Park, BrooklynDTA Driver Associates, Inc. (AA Driver Training Center) is a private company that was formed in 2016 to meet a growing need for reputable companies in New York City to train for-hire drivers. The mission of the driving school is to provide each student with a solid foundation of knowledge and skills to help them become a safe, responsible, and confident driver; we strive to be a one-stop resource center for existing and future TLC drivers. Position Summary: The Office Receptionist, serves as an office gatekeeper and performs front-desk administrative duties, greets visitors, oversees the office setting, maintains office supplies, and ensures compliance. Position Objective: To accurately understand and accommodate customer needs by providing satisfactory solutions within required time frame. Responsibilities Greet visitors, assess their needs, support them by providing information and direct them appropriately Assist and support the entire student enrollment process Establish a professional & friendly interface Find out caller’s objectives and proposed resolution Help students to set up TLC account and upload required documents to TLC Remind students to come to class and check attendance Collect course fees from students and ensure the accuracy and timely completion of transactions Support instructors and other administrative personnel with their administrative functions Maintain a variety of records, invoices, receipts, files and department databases Keep office supply room tidy and organize Troubleshoot and coordinate any office emergencies—e.g., power outage, internet outage (inform IT), fire extinguisher audit, etc. Maintain safe, clean reception area by following procedures, rules, and regulations. Other tasks as needed Qualifications Highly responsible and willingness to take ownership of every incoming request by delivering satisfactory solutions that meet or exceed client expectations Exceptional planning and organizational skills, including ability to prioritize Detailed-oriented Excellent customer service and interpersonal skills Ability to work in a fast-paced, highly demanding environment Self-motivated problem-solver Computer Literate Associate degree required, Bachelor degree preferred Bilingual English & Chinese is preferred This position is open for both full-time and part-time applicants. Job Type: Part-time Pay: $18.00 - $19.00 per hour Benefits: Paid time off Schedule: Monday to Friday Work Location: In person
Easy apply - Hotel Chamber of Commerce
Intern2 months agoFull-timeManhattan, New YorkMy name is Nathaniel Clarke, and I am reaching out on behalf of a unique and purpose-driven hybrid initiative: The Chamber of Commerce Guest Staff Affairs, doing business as the Hotel Chamber of Commerce, and our nonprofit wing, the Hotel Advocacy Network (HAN). Together, we are redefining what hospitality can look like — not just at the front desk, but in the hearts and minds of every guest and staff member. We believe that fairness, emotional intelligence, and accountability should be embedded in every guest experience. Our mission is built on three pillars:1. Hotel Chamber of Commerce (HCC) – The For-Profit Arm Supports hospitality operations by offering: The EchoConnect Front Desk System, a real-time AI-powered check-in and loyalty audit tool Staff training modules in empathy, decorum, crisis de-escalation, and human trafficking prevention The Sauti Listener system — a venting tool designed to reduce leadership burnout 1. Hotel Advocacy Network (HAN) – Our Nonprofit Force 2. Leads grassroots and institutional advocacy by: 3. Promoting ethical hospitality standards 4. Offering emotional intelligence programs to under-served communities 5. Campaigning for policy change, diversity, and staff dignity3. League of Hospitality Guardians – The Next Generation of Leadership 6. This signature program under HAN trains and certifies Hospitality Heroes who exemplify: 7. H = Hospitable, E = Empathy, R = Resolution, O = Ownership. 8. Students who intern with us become part of this larger ecosystem — learning from real-world business, tech, and nonprofit experiences, while contributing to meaningful social change. Open Intern Roles: Marketing & Social Media Intern – Create campaigns and promote outreach Nonprofit & Grant Writing Intern – Assist with funding proposals and impact storytelling Tech & Automation Intern – Work on our EchoConnect platform Hospitality Training Support Intern – Help build and document empathy + decorum modules All roles are remote-friendly, with flexible hours, and eligible for college credit (if approved by your institution). Interns receive professional mentorship, a letter of recommendation, and the chance to directly impact the future of hospitality. I've attached a full flyer and listing for your review. We’d love if you could circulate it among your students or post to your job/internship board. Thank you for your time and dedication to student growth. Together, we can build a fairer, smarter, and more human-centered hospitality industry. Warm regards, Nathaniel Clarke Founder, Hotel Chamber of Commerce & Hotel Advocacy Network
Immediate start!No experienceEasy apply
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