
Closed
Posted
Paid on delivery
I# Senior Python Execution Engineer / Trading Systems Developer ## Project: HYPERION DEUS EX MACHINA ORB Trading Platform ### Contract Position Remote | Project-Based | Potential Long-Term Engagement --- # Project Overview We are seeking an experienced Python execution engineer and trading systems developer to complete and productionize an advanced stock-trading platform known as: ## HYPERION DEUS EX MACHINA The system currently contains substantial infrastructure, including: * ORB (Opening Range Breakout) execution framework * Multi-factor stock discovery engine * Institutional-grade scoring framework * Risk management engine * GUI framework * Paper trading environment * Schwab API approval and OAuth infrastructure * Testing framework * Modular architecture The objective is to move the platform from advanced prototype status into a production-ready system suitable for funded trader evaluations and systematic discretionary trading. --- # Project Goals Complete and productionize: ### ORB Execution Engine * Opening Range Breakout logic * Multi-timeframe confirmation * VWAP integration * Relative strength calculations * Premarket analysis * Retest-and-reclaim entries * Position sizing engine * Trade lifecycle management ### Discovery Engine * Stock scoring system * ORB scoring system * Candidate ranking * Watchlist generation * Institutional-quality screening ### Broker Integration Primary broker: * Charles Schwab API Additional API integrations (up to five simultaneous connections): Examples include: * Financial Modeling Prep (FMP) * [login to view URL] / Massive * Finviz * Unusual Whales * Tradier * Alpaca * Benzinga * SpotGamma * Custom APIs --- # Development Environment Developer will receive: * Existing codebase * Repository access * Architecture documentation * Access to OpenAI Codex * Potential access to Claude Code * Existing GUI assets * Existing testing assets We expect the engineer to leverage modern AI-assisted development workflows to accelerate delivery while maintaining code quality and production standards. --- # Required Technical Skills ## Mandatory ### Python Minimum 5+ years experience Strong knowledge of: * AsyncIO * Multiprocessing * Threading * Event-driven systems * Data pipelines * API integration * Logging * Testing ### Trading Systems Experience with: * Equities * Options * Order routing * Position management * Broker APIs * Market data feeds ### GUI Development Experience with one or more: * PyQt6 * Streamlit * React + FastAPI * Dash ### Data Engineering Experience handling: * Real-time feeds * Market data normalization * Websocket streams * Rate limits * Caching ### Software Engineering * Git * CI/CD * Unit testing * Integration testing * Production deployment --- # Highly Preferred Experience with: * Schwab API * TD Ameritrade API * Alpaca * Polygon * FMP * Interactive Brokers * Unusual Whales * Quantitative trading systems Knowledge of: * VWAP * ORB * Relative Volume * Float Turnover * Gamma Exposure (GEX) * Vanna * Charm * Dark Pools * Auction Market Theory * Market Profile * Volume Profile --- # Desired Engineering Traits We are looking for someone who: * Thinks like an owner * Can challenge assumptions * Builds maintainable systems * Understands execution risk * Understands trading risk * Documents work clearly * Can move quickly without sacrificing quality --- # Expected Deliverables ### Phase 1 Productionize current architecture ### Phase 2 Complete broker integration ### Phase 3 Complete API integration layer ### Phase 4 Implement institutional overlays ### Phase 5 Validate execution paths ### Phase 6 Production readiness certification --- # Application Questionnaire Please answer all questions. ## Trading Systems Experience 1. How many years have you worked on trading-related software? 2. Have you built live trading systems before? 3. Which broker APIs have you integrated? 4. Have you worked with Schwab APIs? 5. Have you worked with options order flows? 6. Have you built position-management systems? 7. Have you implemented trade reconciliation systems? --- ## Python Engineering 8. Rate your Python proficiency from 1–10. 9. Describe the largest Python application you have built. 10. Describe your experience with AsyncIO. 11. Describe your experience with multiprocessing. 12. Describe your experience handling websocket feeds. 13. Have you built event-driven architectures? --- ## API Integration 14. Which market-data APIs have you integrated? 15. Have you worked with: * Polygon * FMP * Alpaca * Tradier * Unusual Whales * Other market data providers 16. Describe the most complex API integration you have completed. 17. How do you handle rate limits and failover? --- ## GUI Development 18. Which GUI frameworks have you used? 19. PyQt6 experience level? 20. Streamlit experience level? 21. React experience level? 22. Provide screenshots or examples of interfaces you have built. --- ## Production Engineering 23. How do you handle: * logging * monitoring * alerts * crash recovery 24. Describe your deployment workflow. 25. Have you built automated testing pipelines? 26. What percentage test coverage do you typically target? --- ## AI-Assisted Development 27. Have you used: * OpenAI Codex * Claude Code * Cursor * Windsurf * GitHub Copilot 28. How do you integrate AI tools into your workflow? 29. Give an example where AI materially accelerated development. --- ## Architecture Assessment 30. Based on the project description, what do you believe are the three highest-risk areas? 31. What would be your first two weeks of work? 32. What improvements would you make beyond the current scope? 33. How long do you estimate to bring this system to production readiness? 34. What information would you need before providing a final estimate? --- # Proposal Submission Please include: * Resume * GitHub profile * Relevant trading-system experience * Examples of production applications * Estimated timeline * Estimated cost * Availability We are specifically seeking engineers who can combine strong software engineering discipline with trading-system execution experience. you will also have access to open ai codex .
Project ID: 40482541
160 proposals
Remote project
Active 1 day ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
160 freelancers are bidding on average $943 USD for this job

Hi, I see that your main worries are making the trading platform reliable and getting Schwab API access sorted quickly. I will handle the threading and stress points to ensure the system runs smoothly under real trading loads. For the Schwab API, I will set up OAuth correctly and make sure the account connection is seamless. I also plan to improve your trading routines by optimizing the order execution and data flow, making sure the other APIs like Polygon or FMP work well together. Additionally, I will focus on testing the platform thoroughly to avoid any surprises during live trading, and I’ll ensure your GUI communicates clearly with the backend for better user experience. My goal is to keep communication open, deliver high-quality work on time, and help you grow by making the platform more dependable. Let’s chat about how we can plan and build something even bigger together. Regards, Nick.
$600 USD in 6 days
8.1
8.1

Hi I can help productionize the HYPERION ORB trading platform by strengthening the Python execution engine, broker integrations, market data layer, GUI, testing, and deployment workflow. My experience aligns with AsyncIO, event-driven systems, multiprocessing, websocket feeds, API integrations, logging, automated testing, Git workflows, and trading-platform architecture. A key technical risk is coordinating real-time market data, Schwab order routing, position sizing, and risk controls without latency issues, duplicate orders, or state mismatches. I would solve this by separating the execution engine, broker adapter, market data normalizer, risk module, and reconciliation layer with clear event queues, failover handling, and testable interfaces. I can also integrate providers such as Polygon, FMP, Alpaca, Tradier, or custom APIs while managing rate limits, caching, retries, and data consistency. For the GUI and monitoring layer, I can support PyQt6, Streamlit, React/FastAPI, alerts, logs, crash recovery, and production-readiness validation. My focus is to make the platform reliable, maintainable, and safe for systematic execution while using AI-assisted development only where it improves delivery quality. Thanks, Hercules
$800 USD in 7 days
6.8
6.8

Hello! As a Senior Python Execution Engineer and professional in Trading System Development, I have the necessary expertise to complete and productionize your HYPERION DEUS EX MACHINA ORB Trading Platform. My 13+ years of experience make me more than qualified to take on your complex project with ease. I am well-versed in Python, more specifically, in AsyncIO, Multiprocessing, Threading and event-driven systems just to name a few; skills that are crucial for the completion of the ORB Execution Engine and Broker Integration that you are looking to achieve. Additionally, my comprehensive knowledge and experience in the trading systems domain notably with equities and options will prove invaluable in executing any order routing aspects of the project. Moreover, my grasp of data engineering skills including dealing with real-time feeds, market data normalization among others will ensure the integration and normalization of various API's you require for seamless functionality. Furthermore, I am skilled in employing CI/CD, carrying out Unit testing integrating effectively me on repositories as stipulated on your project overview. Let's work together and turn your advanced prototype into a fully functional trading system!
$600 USD in 1 day
7.2
7.2

Hello, I would love if i get the chance to work on your project. I have strong experience building Python based automation and real time systems using AsyncIO, multiprocessing, websocket feeds, event driven architectures, FastAPI, PostgreSQL, Redis, broker/API integrations, testing, logging, and production deployment. Python proficiency: 9/10. The three highest risk areas I see are execution reliability during market volatility, data consistency across multiple providers, and trade state reconciliation after partial fills or connection failures. One question: what is currently considered the source of truth for positions and P&L when broker data conflicts with internal trade state? Can we connect over a chat to discuss more about the project? Best regards, Dev Singh
$1,000 USD in 10 days
6.7
6.7

Hi, I build modern JavaScript apps end to end — React/Vue on the front and Node/Express (or Nest) on the back, in TypeScript where it helps. I focus on responsive, fast UIs, clean component structure, and reliable APIs, no page-builder shortcuts. I'll lock down the scope and key user flows first, then ship in reviewable increments with working previews so you're never guessing about progress. Performance, state management, and clean code are the defaults, not extras. To give you an accurate plan, could you tell me [the core feature] and whether this is a fresh build or an existing codebase I'd be extending? Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$800 USD in 16 days
6.5
6.5

Hello, I understand you're taking the HYPERION platform from prototype to production. The system's workflow ingests multi-source data to a discovery engine that scores ORB candidates. Validated signals are passed to an execution core that manages the entire trade lifecycle (entry, risk, exit) via the Schwab API, processing concurrent data streams for its decisions. Technical approach: - Use asyncio for I/O-heavy tasks (API calls, websockets) and multiprocessing for CPU-bound scoring. - Build a unified adapter layer for all data/broker APIs (Schwab, FMP) for clean, modular integration. - Employ Redis for centralized state management (positions, orders) to ensure consistency and fault tolerance. - Implement structured logging and monitoring for production stability. Core modules: - Data Ingestion: Manages parallel streams, normalizes data formats, and handles API rate limits. - Discovery Engine: Applies the multi-factor scoring model in real-time to generate ranked trade candidates. - Execution Core: Handles the full order lifecycle with the broker, tracking fills and position state changes. - Risk Manager: Enforces position sizing and stop-loss rules across all trades. I'll begin with a code audit focused on the existing concurrency model. Priority one is hardening the Schwab API connection and the core trade logic in the paper environment, validated with a test suite that includes failure simulations like connection loss. Regards, Rohit
$600 USD in 45 days
6.8
6.8

Hello, I am a senior Python engineer with extensive experience building production-grade trading, automation, and real-time data systems. Your HYPERION DEUS EX MACHINA platform aligns closely with my background in event-driven architectures, broker integrations, market data processing, and systematic trading infrastructure. My experience includes: • Python (AsyncIO, multiprocessing, threading, FastAPI, data pipelines) • Live trading and execution systems • Broker/API integrations (Schwab, Alpaca, Polygon, Tradier, FMP, Interactive Brokers) • WebSocket market-data feeds and real-time processing • Position management, risk controls, trade lifecycle management • Production logging, monitoring, testing, and deployment • PyQt, Streamlit, and modern dashboard development • AI-assisted development using Codex, Claude Code, Cursor, and GitHub Copilot Based on the project description, the highest-risk areas are execution reliability, multi-provider market-data synchronization, and broker/order-state reconciliation. My first phase would focus on architecture review, execution-path validation, observability, and stabilization of the ORB engine before expanding integrations. I would be happy to review the existing repository, architecture documents, and current implementation before providing a detailed timeline and fixed-cost estimate. Looking forward to discussing the project. Best regards
$800 USD in 7 days
5.8
5.8

Hello! I am a US-based senior software engineer with extensive experience in Python and trading systems. I carefully reviewed your project description regarding the OPTIONS TRADING BOT and understand the importance of hardening and threading for optimal performance. I also have experience integrating APIs, including Schwab, which aligns well with your needs. With 15 years in software architecture, I’ve developed high-performance trading algorithms and bots. For instance, I built a trading platform that integrates with multiple brokers and ensures seamless transaction processing. Could you please clarify the following questions to help me better understand the project? 1. What specific functionalities do you want to enhance in the current trading bot? 2. Are there any performance metrics or benchmarks you are aiming to achieve? I propose to start with a thorough analysis of the existing code, followed by a phased approach: 1. Enhance threading for better concurrency. 2. Harden the system against vulnerabilities. 3. Test and optimize API integration for reliability. I am committed to delivering a solution that meets your requirements and exceeds expectations. Let’s discuss how I can help make your project a success! Best, James Zappi
$800 USD in 5 days
5.9
5.9

Hello dear, Greetings from MD. Toriqul Islam! We are a dedicated Web Design & Development team with over 10+ years of industry experience. I’m Engineer Toriqul Islam, an experienced Computer Science & Engineering graduate from RUET. We specialize in building modern, scalable, and user-friendly digital solutions tailored to business needs. What I Offer We help businesses grow online by delivering: • Clean, modern, and responsive website designs • High-performance and scalable web applications • User-focused UI/UX for better engagement and conversion My Technical Expertise We work across a wide range of technologies, including: • Frontend: HTML5, CSS3, Bootstrap, JavaScript, jQuery, Angular, React • Backend: Node.js, PHP, Laravel, .NET, CodeIgniter, Ruby on Rails, Python • CMS & Platforms: WordPress • Database: MySQL, MongoDB • Mobile Development: React Native, Flutter, and more Why choose me? ✔️ Clean, optimized, and well-documented code ✔️ Reusable and scalable components ✔️ On-time delivery with complete requirement fulfillment We are confident in our ability to turn your ideas into a powerful digital product. Let’s discuss your project and make it a success. Looking forward to working with you! Best Regards, Md. Toriqul Islam
$600 USD in 7 days
5.6
5.6

Hi there, Trading bots usually don’t fail because the strategy is missing — they fail because execution, threading, API reliability, and recovery behavior break under real market conditions, and that’s the part I’d focus on hardening first. I’m a senior Python engineer with strong backend and systems experience, including async workflows, API integrations, logging, testing, modular architecture, and production-minded debugging, and I’m comfortable working on high-risk event-driven systems where stability matters more than flashy code. Your platform already has serious structure behind it, so this feels less like “build from scratch” and more like disciplined productionization, which is where I’m strongest. I can work on execution-path hardening, threading/multiprocessing cleanup, broker/API integration layers, reliability around websocket and market-data flows, and improving testability and observability across the system. Schwab does have an individual developer path for Trader APIs, and access requires a Schwab brokerage account, so I understand why that requirement matters here. I also like that you’re thinking in phases, because a system like this should be stabilized in layers rather than rushed into “live-ready” status. I’m comfortable using AI-assisted tools like Codex/Copilot to move faster, but always with engineering discipline around review, testing, and failure handling.
$600 USD in 7 days
5.8
5.8

Your ORB execution engine will fail in production if threading isn't isolated per symbol - I've seen race conditions corrupt position state when multiple breakouts trigger simultaneously. The Schwab API also has strict OAuth token refresh requirements that will cause disconnects if not handled in a separate async loop. Before architecting the threading model, I need clarity on two things: What's your target symbol universe size (10 stocks or 100+)? And does your Schwab account tier support streaming quotes, or are you polling REST endpoints? Here's the hardening approach: - ASYNCIO + THREADING: Separate event loops for market data ingestion, order execution, and GUI updates to prevent blocking. Use thread-safe queues for cross-thread communication. - SCHWAB API INTEGRATION: Implement token refresh daemon with exponential backoff and connection pooling to handle rate limits (120 requests/minute). Add idempotency keys to prevent duplicate orders during network failures. - POSITION MANAGEMENT: Build atomic state machine for trade lifecycle (pending → filled → exited) with SQLite WAL mode to prevent corruption during crashes. - MULTI-API ORCHESTRATION: Create adapter pattern for FMP/Polygon/Unusual Whales with circuit breakers when APIs go down. Cache VWAP/relative volume calculations to reduce redundant calls. - CI/CD PIPELINE: Set up pytest with mock broker responses, GitHub Actions for regression testing, and Docker containers for reproducible deployments. I've built 3 algorithmic trading systems that processed 50K+ orders daily without position drift. I don't take on projects where the risk model is unclear - let's discuss edge cases like partial fills and after-hours gaps before hardening the execution layer.
$720 USD in 21 days
5.6
5.6

I have strong experience building Python-based trading infrastructure, real-time data processing systems, broker/API integrations, event-driven architectures, AsyncIO applications, and AI-assisted development workflows. Your HYPERION platform already has a solid foundation, and I can help productionize the ORB engine, broker integrations, execution management, testing, monitoring, and deployment layers while maintaining scalability and reliability for live trading environments.
$700 USD in 3 days
5.3
5.3

Hi, I’m interested in this project and have experience with Python, API integrations, real-time data processing, WebSockets, AsyncIO, and trading-related applications. I can productionize the existing platform, improve reliability, complete integrations, and prepare it for live trading use. Best regards, Shakila Naz
$700 USD in 7 days
5.2
5.2

✋ Hi there. I can help productionize your HYPERION trading platform by improving execution reliability, broker connectivity, threading performance, and overall system stability for live trading. ✔️ I have strong experience building Python applications with AsyncIO, threading, multiprocessing, websocket feeds, broker APIs, market data pipelines, and event driven architectures. I have worked on trading and financial systems involving automated execution, risk controls, position management, real time monitoring, and API integrations. ✔️ For your project, I will first review the current codebase, architecture, execution engine, and Schwab integration to identify bottlenecks, race conditions, and production risks. I will then strengthen the ORB workflow, improve data handling, optimize threading, and validate execution paths across all major components. ✔️ I will also improve logging, error recovery, testing coverage, monitoring, and API failover handling to ensure the platform remains stable under live market conditions. My focus is maintainable code, clear documentation, and reliable execution. Let’s chat to discuss your project in detail. Best regards, Mykhaylo
$800 USD in 7 days
5.0
5.0

Hello, Your HYPERION DEUS EX MACHINA project immediately caught my attention because it combines advanced Python engineering with real world trading system requirements. I have extensive experience working with complex Python applications involving API integrations, event driven workflows, real time data processing, authentication systems, testing, and production deployments. I have also worked on financial and data intensive platforms where performance, reliability, and accuracy are critical. The foundation you already have in place appears well structured, and I am confident I can help take the platform from its current state to a production ready trading environment. The combination of ORB execution, broker connectivity, market data integrations, risk controls, and trade lifecycle management aligns well with projects I have handled previously. I would welcome the opportunity to schedule a discussion to review the current architecture, codebase status, and project priorities. After understanding the existing components in greater detail, I can provide accurate timelines, identify key risk areas, and outline the most efficient path toward production readiness. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira
$800 USD in 7 days
4.5
4.5

HI, I have rich experience in Trading bot development using Python I have developed many trading bot before Let's discuss more Thanks
$800 USD in 7 days
4.6
4.6

Nice to talk you , After reading in detail the requirements of your project and concluding that they match my areas of knowledge and skills, I would like to introduce myself. My name is Anthony Muñoz and I am the lead engineer for DS Pro IT agency. I have worked for over 10 years in Backend and software development and have successfully done multiple jobs. It will be a pleasure to work together to make your project a reality. Please feel free to contact me. I´m looking forward to working with you. I really appreciate your time and remain attentive to any request or question. Greetings
$1,884 USD in 7 days
4.6
4.6

Hi, I’m excited about the opportunity to contribute as a senior Python execution engineer for the HYPERION DEUS EX MACHINA ORB Trading Platform. With over 5 years in Python development focusing on async programming, multiprocessing, threading, and event-driven architectures, I have successfully built and productionized trading execution engines integrating brokerage APIs including Schwab. My experience with equities, options, and complex order routing aligns perfectly with your need to harden and extend the ORB engine, enhance threading, and finalize broker integrations. I’m confident in leveraging your existing modular architecture, Schwab OAuth infrastructure, and AI-assisted tools like OpenAI Codex to accelerate delivery without compromising quality. I’ll prioritize stabilizing the opening range breakout logic, optimizing concurrent trade management, and ensuring seamless multi-API operations. For next steps, I’d propose a detailed architecture review followed by a sprint plan covering Phase 1 production hardening with threading and testing improvements within 21 days. What are the current bottlenecks or stability issues you’ve observed with the ORB Execution Engine that you’d like to prioritize? Thanks,
$890 USD in 18 days
4.4
4.4

Hello, I hope you are well. I’m a Python-focused trading systems engineer with 5+ years building and productionizing high-performance execution engines, risk management, and data pipelines for equities and options. I’ve led end-to-end enhancements from live prototyping to production-ready systems, emphasizing reliability, testability, and scalable async architectures. I will apply thread-safe execution, robust asyncio patterns, and a modular design to harden the ORB framework, integrate VWAP and multi-timeframe signals, and ensure solid broker/API connectivity, including Schwab OAuth flows, while keeping risk controls tight and auditable. I’ve previously delivered live trading pipelines with multi-broker integrations and real-time data handling, automated testing, and CI/CD deployments. I will reproduce those practices here: production-grade components, clear interfaces, and comprehensive tests, with phased milestones aligned to Phase 1-6 deliverables and a production-readiness trajectory. I will work as an independent engineer and own the quality and pace, delivering a robust, maintainable system for funded-trader evaluations. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan
$890 USD in 1 day
4.3
4.3

Hello, I am excited about the opportunity to work on the HYPERION DEUS EX MACHINA trading platform. I understand that you need a Senior Python Execution Engineer to transition your advanced prototype into a production-ready trading system, particularly focusing on the ORB execution engine and broker integrations. With over 5 years of experience in Python development, particularly in trading systems, I am well-versed in AsyncIO, event-driven architectures, and API integrations. My background includes building robust applications that handle real-time market data and implementing complex trading logic, making me a strong fit for this project. To ensure a successful outcome, my approach will include: - Analyzing the existing architecture to identify enhancements for production readiness. - Implementing the ORB execution engine and integrating VWAP and multi-timeframe confirmation. - Developing a comprehensive stock discovery engine with effective scoring and ranking systems. - Ensuring seamless integration with the Charles Schwab API and additional market data providers. I am eager to bring my expertise to your project and deliver high-quality results on time. I am available to discuss further details and can start immediately. Thank you for considering my proposal!
$600 USD in 7 days
4.3
4.3

Charlotte, United States
Payment method verified
Member since Jun 11, 2025
$500-1000 USD
$500-1260 USD
$225-450 USD
$550-1100 USD
$400-800 USD
₹600-1500 INR
₹600-1500 INR
$15-25 USD / hour
₹12500-37500 INR
₹75000-150000 INR
$2-8 USD / hour
₹12500-37500 INR
₹750-1250 INR / hour
₹750-1250 INR / hour
₹12500-37500 INR
$30-250 USD
$250-750 USD
₹1500-12500 INR
$250-750 USD
₹500000-1000000 INR
₹75000-150000 INR
$30-250 USD
$600-1000 USD
₹600-1500 INR
₹600-700 INR