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Betting Engine Developer – Arbitrage & Book Balancing System Description: We are building Betting site, a next-generation betting exchange designed around perfect book balance, odds rotation, and structured external arbitrage opportunities. Unlike traditional sportsbooks, This is built specifically for professional arbitrage traders and syndicates. We are looking for an experienced developer (or small team) to help us implement the Bet Odds Engine from the ground up. Requirements: Strong experience with sportsbook / betting exchange development. Knowledge of odds feeds, probability math, overrounds, and arbitrage logic. Proficiency in backend development (Node.js, Python, or similar) and frontend frameworks. Experience with real-time data, APIs, and scalable architecture. Bonus: Prior work with bookmaker APIs or trading platforms. What We Expect: Delivery of a secure, high-performance odds engine. Clean, modular code that allows scaling to multiple sports. Clear admin tools for monitoring, overrides, and compliance reporting. Strong focus on book balancing and risk-free exposure closure. If you have proven experience in building betting engines, trading platforms, or arbitrage systems, we’d love to hear from you. Please share: Examples of relevant past work Your proposed approach / stack Estimated timeline & cost
Project ID: 39715273
47 proposals
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Active 8 mos ago
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47 freelancers are bidding on average $3,639 USD for this job

⭐⭐⭐⭐⭐ Valuable Client, CnELIndia, led by Raman Ladhani, has extensive experience building high-performance betting platforms and arbitrage systems. We can design and implement your Betting Exchange System and Bet Odds Engine with precise book balancing, real-time odds rotation, and structured arbitrage detection. Our approach includes developing a scalable Python/Django backend, integrating live odds feeds, and creating a responsive frontend for professional traders. We emphasize modular code, secure APIs, and admin tools for monitoring, overrides, and compliance reporting. CnELIndia’s expertise in probability modeling, overround calculations, and risk management ensures risk-free exposure closure. We will deliver a fully tested, production-ready system tailored for arbitrage trading, with clear timelines and iterative progress updates. Raman Ladhani will personally oversee architecture, development, and deployment, ensuring high reliability and performance. Estimated timeline: 16–20 weeks. Proposed stack: Python, Django, React, PostgreSQL, WebSockets.
$500 USD in 7 days
6.2
6.2

Hi, buddy. I have strong experience developing sportsbook and trading platforms, with a deep understanding of odds feeds, arbitrage logic, and book balancing systems. My expertise in backend development with Node.js and Python, combined with frontend frameworks, allows me to deliver secure and scalable betting engines optimized for real-time data and high-frequency trading. I’ve previously built odds engines that integrate bookmaker APIs, maintain perfect overrounds, and provide admin dashboards for monitoring and compliance. With my proven track record, I can architect a clean, modular system that ensures book balance, risk-free exposure closure, and long-term scalability. Best regard. Denis.
$500 USD in 7 days
5.4
5.4

Hello, Thank you so much for posting this opportunity it sounds like a great fit, and I’d love to be part of it! I’ve worked on similar projects before, and I’m confident I can bring real value to your project. I’m passionate about what I do and always aim to deliver work that’s not only high-quality but also makes things easier and smoother for my clients. Feel free to take a quick look at my profile to see some of the work I’ve done in the past. If it feels like a good match, I’d be happy to chat further about your project and how I can help bring it to life. I’m available to get started right away and will give this project my full attention from day one. Let’s connect and see how we can make this a success together! Looking forward to hearing from you soon. With Regards! Abhishek Saini
$500 USD in 7 days
5.5
5.5

I am an expert statistician, Research Writer, and data analyst with more than eight years of experience. I have full command of Excel analysis, SPSS, STATA, R LANGUAGE, AND PYTHON. I am an expert in creating time series prediction models, working with survey data, conducting marketing analysis, building estimators, and medical analysis. I am a perfect match for your project share other details of the work so I can start working on your project. Will complete task on time.
$750 USD in 7 days
5.1
5.1

Dear Hiring Manager, I am a seasoned developer with extensive experience in sportsbook and betting exchange development, making me an ideal candidate for your project. My expertise includes implementing Bet Odds Engines from scratch, ensuring perfect book balance, odds rotation, and structured arbitrage opportunities. I possess strong knowledge of odds feeds, probability math, and overrounds, coupled with proficiency in backend (Python) and frontend frameworks. Additionally, my experience in real-time data, APIs, and scalable architecture aligns perfectly with your project requirements. I am committed to delivering a secure, high-performance odds engine with clean, modular code for seamless scaling. My focus on book balancing and risk-free exposure closure will ensure the success of your platform. I am excited about the opportunity to contribute to your innovative betting exchange system. Looking forward to discussing further details with you. Warm regards,
$750 USD in 7 days
4.7
4.7

As an AI and machine learning expert, I am no stranger to delivering high-performance systems that leverage advanced mathematics and scalable architectures. I have over 25 years of experience in the field, which has made me a trusted global partner for intelligent solutions like the one you need for your betting exchange system. I have a strong understanding of sportsbook development and relevant components like odds feeds, probability math, and arbitrage logic. My proficiency in backend development (especially Python) along with my knowledge on real-time data and APIs makes me capable in building a secure and high-performance odds engine that is pivotal for your platform. Moreover, given my prior experience in risk management, there would be an additional layer of assurance that the book balance will be perfect while ensuring risk-free exposure closure. My work will not only feature clean and modular code necessary for scaling but also clear admin tools for monitoring and compliance reporting. With me on board, you can expect nothing less than excellence – a system that is both practical and aligned with your long-term goals.
$500 USD in 7 days
4.8
4.8

Hi There!!! I have studied your project description very carefully and understand you need a robust, high-performance betting exchange engine focused on perfect book balancing, odds rotation, and arbitrage opportunities tailored for professional traders and syndicates. I am best fit for this project because I have deep expertise in building secure, scalable betting and trading platforms with strong backend logic. * Extensive experience with sportsbook and betting exchange development * Skilled in odds feed integration, probability math, and arbitrage logic * Proficient in backend technologies like Node.js and Python for real-time, scalable architectures * Delivered modular, clean code with admin tools for monitoring and risk management I also offer design assistance, API integration, testing, and complete source code delivery after project completion. I have 9+ years experience as a full stack developer and have worked on multiple trading and betting engines similar to your requirements. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$281 USD in 18 days
4.9
4.9

Hello, My name is Sheriff Oladejo, a seasoned software developer with extensive experience, particularly in creating robust, efficient betting engines and trading platforms. Your project on developing a next-generation betting exchange resonates with my expertise and successful project deliveries over the past five years. Understanding the critical nature of building a secure and high-performance Bet Odds Engine, my approach integrates advanced technologies with strategic methodologies to ensure scalability, real-time data processing, and compliance with odds rotation and arbitrage requirements. I bring a deep understanding of sportsbook development dynamics, including proficiency in backend technologies such as Node.js and Python, and am well-versed in managing odds feeds, implementing probability mathematics, and ensuring the integrity of overrounds and arbitrage logic. My past projects involve working with bookmaker APIs and developing frontends that provide clear, actionable admin tools and monitoring capabilities. I am confident in constructing a betting exchange system that not only meets but exceeds your expectations for book balancing and risk management. My commitment is to deliver modular, clean code tailored to facilitate seamless scalability across various sports and comprehensive risk-free exposure control. Thank you for considering my proposal. I am eager to contribute to your vision and discuss how my background aligns perfectly with your needs. Best regards, Sheriff Oladejo
$500 USD in 7 days
4.6
4.6

Hey Nidal S., I just finished reading the job description and I see you are looking for someone experienced in Risk Management, Mathematics, Software Development, Python, Backend Development, Django and API Development. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 180 major projects. 2. I have not received a single bad feedback since the last 4-5 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. 4. I will provide you my fast service until 100% satisfactions. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Zain
$250 USD in 3 days
3.5
3.5

Hi there, Which sports or events will the betting exchange initially support, and are there specific odds feeds or sources you'd like to use? How do you plan to handle risk management, particularly in relation to exposure closure and odds rotation? I can help you build a next-generation betting exchange, focusing on the odds engine, book balance, and arbitrage logic. I’d design the backend to ensure high performance, scalability, and a smooth user experience, all while integrating real-time data and APIs. I’ve worked on similar projects where I built a betting engine for a sports exchange platform. I handled odds feeds, integrated real-time data, and implemented robust book balancing and risk management strategies. This ensured smooth operation for professional traders and syndicates, allowing for seamless odds rotation and risk-free exposure closure. Hope to discuss more on chat Best Sython
$500 USD in 7 days
3.2
3.2

Hello There!!! ⭐⭐⭐⭐ (Betting Exchange Engine Development) ⭐⭐⭐⭐ You’re creating a professional-grade betting exchange platform focused on arbitrage trading, risk-free exposure, and dynamic odds balancing this is a serious build, and I love the challenge! ⭐⭐⭐⭐ From what I understand, you need a clean, modular odds engine that can process real-time feeds, manage book balance, and optimize for arbitrage across sports all while being scalable and secure. ⭐⭐⭐⭐ Here’s my plan: * Use Python (Django or FastAPI) for robust backend logic and real-time data handling * Integrate bookmaker APIs and build arbitrage logic with overround + probability models * Design an admin dashboard for odds control, compliance, and exposure tracking * Focus on clean, extensible architecture to scale across sports and bet types * Implement book balancing with risk management logic With over 9 years of backend and data-heavy systems experience, I’ve worked on similar algorithm-driven platforms and bring a sharp understanding of trading logic and real-time data systems. I value reliability, transparent communication, and delivering results that scale. Let’s connect and map out how to make your betting engine a rock-solid foundation for pro-level trading. Best Regards, Farhin B.
$256 USD in 13 days
4.2
4.2

My name is Rabia Faisal, I am working in the writing industry since 2011. During this time, I have served countless clients with a full amount of satisfaction by providing them with TOP Quality Solutions. I have command of all references APA, Harvard, IEEE, MLA & Chicago, etc. I will provide plagiarism-free work with 100 percent accurate grammar within your given deadline. Please message me to get Top Class Services. I am waiting; https://www.freelancer.com/u/TopWritingGuru
$250 USD in 1 day
3.0
3.0

Hey there, I am a Software engineer with over 2 years of experience. Examples: designed a low-latency exchange-style matching engine for a trading firm (odds rotation, risk limits), implemented book‑balancing and automated lay/hedge modules for a sportsbook, and integrated real‑time feeds + admin dashboards for compliance reporting. Proposed approach/stack: Node.js/TypeScript backend (event-driven), Redis for in‑memory books, PostgreSQL for ledgering, Kafka (or Redis Streams) for feed/event bus, WebSockets for realtime, Docker/K8s for scale; modular services for odds feed adapters, arbitrage detector, matcher, settlement and admin APIs. Estimate: MVP core engine + admin tools 2 weeks; 250$ With my experience, I’m sure I can finish this task in a very short time, assuring the expected results. Feel free to check my profile and contact me for more details. Regards,
$250 USD in 15 days
2.8
2.8

Dear Sir I just read your description more detail and it sounds like you want Arbitrage betting sites. I am very motivated in this project. I have much experiences of arbitrage finder and have been working for 7 years. I already have developed many auto betting software for sports betting bookies. I am particular proud of my skills. This job is an ideal match for my skills and experiences. I will pull my weight to this project. I would like to discuss about your project more specifics after contacting. Best Regard.
$750 USD in 7 days
2.9
2.9

As an experienced web developer, I've specialized in using Python to create intricate and efficient systems, which makes me the perfect fit for implementing your betting engine. I've worked on numerous projects that intersected bookmaking and probability math. Thus, I'm well-versed in handling odds feeds, overrounds, and arb logics proficiently.
$250 USD in 7 days
3.1
3.1

My name is "Usama Safdar" and I am a Ph.D degree holder which means I am highly-capable to tackle this project "Content Editor " with 100 percent accuracy. I am a professional writer with over 6 years of experience in writing; Essays, Research Summaries, Thesis, Dissertation, Lab Reports and Case Studies. I always provide High-Quality Solutions within the shortest possible time with all instructions followed against very reasonable prices. I can manage works even with shortest deadlines like; "2500 words work in just 6 Hours" with very reasonable time. As a pro academic writer I am also familiar with all the referencing styles; such as APA, Harvard, OSCOLA, IEE, MLA etc. I always provide plagiarism-free solutions and as a prove I also provide "FREE Turnitin reports". For Samples, please visit my profile https://www.freelancer.com/u/SolutionMart Please message me to start the discussion. Thank You
$250 USD in 1 day
2.4
2.4

With over eight years of experience delivering end-to-end solutions in web and software development, I am confident in my ability to construct a robust and secure betting exchange system tailored to your specific needs. I am well-versed in backend development using Node.js and Python which you require for this project. Moreover, my extensive knowledge of API integration and web scraping will allow me to work smoothly with existing bookmaker APIs and trading platforms. In regards to your essential requirement of having a strong focus on book balancing and risk-free exposure closure, my proficiency in data analytics, probability math, overrounds and my practical experience in deliverying high-performance odds engines are essential in ensuring perfect book balance. My ability to employ real-time data and APIs alongside the backend systems will help achieve clean, modular code that can scale to multiple sports with ease. Another significant feature of my profile that resonates with the requirement is my expertise in scalable architecture which is pivotal for your market. Furthermore, I have a proven track record of creating monitoring tools for oversight purposes as well as seamless integrations with compliance reporting system. So let's connect and discuss more about your valued project.
$350 USD in 7 days
2.6
2.6

Your project deserves more than just completion—it deserves to stand out. I’m here to make that happen. I understand your need for a Betting site focused on perfect book balance, structured arbitrage, and odds rotation for professional traders. I thrive on creating seamless, high-performance systems built for complex arbitrage strategies and structured trading. Although I’m new to Freelancer, I’ve spent years refining my craft and have completed similar projects beyond this platform—with care and consistency. I’d genuinely love to learn more about what you're building and how I can help make it happen—At the very least, you gain valuable insights from a free consultation. I’d be pleased to discuss your ideas in more detail! Armando Lucas
$400 USD in 30 days
2.2
2.2

We appreciate the opportunity to submit a proposal for your Betting Exchange System. Our team at Associative has reviewed your requirements and is confident we can build a secure, high-performance odds engine with a strong focus on book balancing and arbitrage logic. Our proposed approach is to build the system from scratch, ensuring you have full ownership of the source code. We'll use a robust and scalable technology stack that includes Node.js, Python, React.js, and PostgreSQL, leveraging our expertise in real-time data and scalable architecture. The final product will include clear admin tools for monitoring, overrides, and compliance reporting, as requested. Milestone Payment Plan: Milestone 1: Project Kickoff and Planning This phase includes a project kickoff meeting, agreement signing, and in-depth discovery and planning. We will define a detailed scope of work, technical specifications, and a finalized project roadmap. Milestone 2: Core Engine Development This phase focuses on the development of the core odds engine, including the implementation of arbitrage and book balancing logic. We will also integrate third-party odds feeds and build the foundational API. Milestone 3: UI and Admin Tools This final phase covers the development of the user-facing interface and the comprehensive admin dashboard for monitoring and management. We will also perform rigorous testing, quality assurance, and deployment. Warm regards, Associative Pune
$150,000 USD in 270 days
1.2
1.2

I am a perfect fit for your project as an experienced developer with expertise in building betting engines, trading platforms, and arbitrage systems. With strong backend development skills in Node.js and proficiency in real-time data and APIs, I can deliver a secure, high-performance odds engine focused on book balancing and risk-free exposure closure. While I am new to freelancer, I have tons of experience and have done other projects off site. I would love to chat more about your project! Regards, Zain Levine
$400 USD in 14 days
0.0
0.0

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