We are hiring a senior developer to implement and optimize a professional HFT trading system focused on market microstructure (core assets: BTC, ETH). Initial schedule ≈2–4 h/day (10–20 h/week). Project delivered in phases; NDA required. Paid technical test required before hiring ($10). Compensation - Start: $2 USD/hour. - First 4 weeks: possible increase to $3–$4 USD/hour based on performance and KPI fulfillment. - Formal reviews every 96 hours worked to negotiate further hourly adjustments; increases negotiable up to $10 USD/hour depending on KPIs and deliverables. - Possibility of a full‑time offer (8 h/day) with a significant hourly/salary improvement for outstanding performers. - Payment by milestones; any agreed adjustment will be documented in writing. Key responsibilities - Implement WebSocket data ingestion and real‑time order book processing. - Design/optimize low‑latency components (Rust/C++ where applicable) and orchestration/backtesting in Python. - Integrate with target exchanges (Binance, Coinbase Pro, Bybit; validate on Kraken/OKX). - Build a backtester with realistic slippage/latency/fee simulation. - Implement an execution engine with smart order routing (sandbox‑tested). - Implement real‑time risk controls, monitoring and alerting. - Deliver documented code, tests, and participate in code reviews. Primary deliverables (by phase) 1. Architecture document and roadmap (initial). 2. Stable WebSocket connectors for target exchanges. 3. Real‑time metrics module (imbalance / large order detection) with tests. 4. Realistic backtester (slippage / latency / fees). 5. Execution engine with smart order routing (sandbox testing). 6. Basic monitoring/alerting system and final technical documentation. Paid technical test (required) - Task: connect to an exchange sandbox, consume the order book via WebSocket, compute an imbalance metric, and emit a simple signal; document assumptions and edge cases. - Estimated effort: 3 hours (max 6). Payment: $10 USD (may be deducted from the first milestone if hired). - Deliverable: repo (public or private) with README, run instructions and basic tests. Submit link via Telegram. Candidate profile - Demonstrable competence in Python; Rust or C++ for latency‑critical modules is valued. - Practical experience or verifiable evidence working with exchange APIs and order books. - Understanding of market microstructure, order flow, market making and real‑time risk controls, or ability to demonstrate equivalent knowledge. - Professional Git workflow. - Spanish fluency required. - Formal multi‑year experience is not mandatory if skills are demonstrated via repos, projects or the paid test. Selection process (summary) 1. Initial application via Telegram: CV + 2–3 repo links + availability (hours/week and timezone) + billing type (individual/company). 2. Paid technical test ($10). 3. Code review and technical interview (30–45 min). 4. Offer by milestones and NDA signature. 5. Project start with periodic reviews every 96 hours (fee adjustments negotiable per review). KPIs and criteria for increases - On‑time delivery of agreed milestones. - Code quality: accepted PRs, timely resolution of review comments. - Tests for critical modules (coverage targets set at onboarding). - Operational robustness: reconnection handling, data validation, latency within agreed thresholds. - Implementation of risk controls (limits, stops, validation). - Communication and responsiveness within agreed windows / SLOs. Administrative terms - NDA required before sharing sensitive credentials. - IP and code: assigned to the project; assignment documented in contract. - Any rate change agreed after review will be recorded as a signed contract annex before taking effect. - Payment methods: bank transfer / Payoneer / PayPal (to be agreed). Invoices or receipts accepted per local requirements. How to apply Contact via Telegram: @YALO4444 (Adony Robles) Suggested message: “HFT Application — [Your Name]” and attach: CV, 2–3 relevant repo links, availability (hours/week and timezone) and whether you invoice as an individual or a company. Timing - Application deadline: [insert date]. - Estimated start: [insert date or “immediate”]. Regards, Adony Robles (Telegram: @YALO4444)