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Filip Macek

PROFILE

Filip Macek

Over a 16-month period, contributed to nautechsystems/nautilus_trader by architecting and delivering advanced trading, analytics, and blockchain data infrastructure. Developed core systems for order matching, DEX analytics, and DeFi data pipelines, emphasizing reliability, real-time processing, and cross-chain support. Leveraged Rust and Python to implement high-performance modules for AMM pool profiling, live data streaming, and execution management, while integrating PostgreSQL for scalable persistence. Enhanced system robustness through asynchronous programming, rigorous testing, and error handling. The work enabled accurate trading simulations, robust risk controls, and actionable analytics, supporting institutional-grade workflows and extensible integration with diverse blockchain and exchange protocols.

Overall Statistics

Feature vs Bugs

79%Features

Repository Contributions

142Total
Bugs
21
Commits
142
Features
81
Lines of code
147,224
Activity Months16

Your Network

73 people

Work History

April 2026

6 Commits • 2 Features

Apr 1, 2026

April 2026 performance focused on strengthening reconciliation reliability, inflight lifecycle management, and developer enablement for Nautilus Trader. Delivered critical ExecutionManager integration, robust startup handling, and Polymarket-specific timestamp fixes, while publishing practical Rust-based Polymarket arbitrage guidance. These efforts improved data integrity, reduced runtime panics, and provided a clearer path for implementing automated strategies in production.

March 2026

13 Commits • 4 Features

Mar 1, 2026

March 2026 monthly summary focused on delivering business-value features, stabilizing system architecture, and improving trading correctness across Nautilus Trader. Highlights include end-to-end Option Chains and Greeks, modular Polymarket data/exec enhancements, system-wide startup reliability improvements, and real-time instrument status updates for Bybit.

February 2026

6 Commits • 4 Features

Feb 1, 2026

February 2026 monthly summary for nautechsystems/nautilus_trader focusing on delivering business value through cross-exchange instrument parsing improvements, real-time data pipeline enhancements, execution reliability, and API data accessibility. The work delivered enhances data accuracy, trading reliability, and platform scalability for institutional and professional traders.

January 2026

26 Commits • 18 Features

Jan 1, 2026

January 2026 (Month: 2026-01) focused on strengthening Deribit integration, stabilizing the core cache and LiveNode startup path, and hardening risk controls. The team delivered several high-impact features, closed a number of reliability bugs, and improved configurability and performance across the Deribit integration stack. The net effect is more reliable data delivery, safer order routing, and faster reconciliation, directly supporting trading accuracy and uptime for customers. Key features delivered and capabilities added: - Finish Deribit data client (commit 0bff521fbf4ba8e058d5094ed36f68a61009b5bd) - Add support for setting cache database adapter in cache and LiveNode (commit 72305189518eb39b8e85ba940c2cb3b5ea2c9c7e) - Deribit order submission implementation (commit cebad7428fc578bbb0b14990e20abfd6ee2cd28f) - Deribit live reconciliation support (commit 7217204bbb7aa7a963e0e54af4e1a1eb6559f4f2) - Deribit rate limiting for HTTP and WebSocket clients (commit 8de442f194a9d9792346b10469588c6b2288ab34) Major bugs fixed: - Fix instrument cache race condition during LiveNode startup (#3385) — c11083a3db74497779f4052a9066be9aa77b5ada - Fix OKX order rejection handling in execution client (#3399) — c137fd0e14b5df35e7a51c422ce3131f50b9a412 - Fix missing currency registration when adding instruments to cache (#3400) — 83f9c079b278356e38d7fdf27d9f75ed4cd5154b - Fix Deribit auth token refresh race condition (#3402) — 3a6f8ad9838962d3b2280ad96e64d13b5cddd830 - Fix Deribit race condition between response and subscription (#3436) — 8ed4293364b960f20f01c7babb0c669b78de687e Overall impact and accomplishments: - Improved data integrity and pricing accuracy through a completed Deribit data client and enhanced live reconciliation support. - Increased system reliability by addressing cache startup races, token refresh races, and risk engine balance checks. - Enhanced configurability and scalability with cache DB adapter support, enabling easier deployment and operational tuning. - Strengthened execution and risk workflows with API refactors and performance improvements across Deribit integration. Technologies/skills demonstrated: - Rust and Python testing approaches for risk engine validation (inverse instrument order handling). - High-performance data deserialization improvements for Deribit data paths. - Refactoring of WebSocket client and execution clients to standard patterns for maintainability. - System-level reliability work (race condition mitigation, startup ordering, token refresh sequencing).

December 2025

5 Commits • 4 Features

Dec 1, 2025

Monthly summary for 2025-12 focused on nautilus_trader development. Delivered features to unify Tokio runtime usage across adapters, enhanced Deribit data capabilities (instruments, trade ticks, WebSocket streaming) and scaffolded Deribit execution client for integration testing. Implemented instrument callback deduplication across Kraken, Deribit, and OKX adapters. Achieved improved runtime management, reliability in concurrent operations, and richer market data access with robust parsing and error handling. Test stability improvements include Delays in BitMEX submitter tests to improve synchronization.

November 2025

9 Commits • 3 Features

Nov 1, 2025

November 2025 monthly summary focusing on key accomplishments for the nautechsystems/nautilus_trader repository. Delivered significant analytics, reliability, and wallet/account capabilities that directly enable better decision-making, faster integration with diverse RPC providers, and expanded coverage for DeFi assets.

October 2025

17 Commits • 12 Features

Oct 1, 2025

October 2025 focused on delivering core PoolProfiler capabilities with improved accuracy, reliability, and analytics in Nautilus Trader. Key features delivered include improved active liquidity calculation for the AMM pool profiler, unified swap simulation logic, a snapshot/analytics/PSQL schema for PoolProfiler, PoolFlash event integration into the blockchain adapter and live subscription flow, and the introduction of a liquidity utilization rate metric to quantify pool efficiency. Notable reliability improvements were achieved through targeted bug fixes on overflow in fee calculations, out-of-gas Multicall handling, and blockchain client busy-loop stability. These workstreams collectively enhance data-driven decision making, risk assessment, and scalable analytics for pool dynamics.

September 2025

3 Commits • 3 Features

Sep 1, 2025

September 2025 monthly summary for nautilus_trader. Delivered three high-impact features across DEX data synchronization, RPC efficiency, and AMM analytics, driving data accuracy, throughput, and actionable insights for trading analytics and risk monitoring. Focused on robust data processing, scalability and developer tooling.

August 2025

15 Commits • 14 Features

Aug 1, 2025

August 2025 highlights Nautilus Trader’s data layer and CLI performance improvements, expanding DEX coverage while strengthening data quality and reliability. Delivered real-time data via live subscriptions for the blockchain data client, accelerated synchronization with efficient block syncing and CLI pool syncing, and extended parsing for PancakeSwapV3 pools. Standardized InstrumentId chain name validation and DEX pool symbol validation to reduce data integrity issues and improve downstream signal quality. Business impact: faster time-to-value for new pools, more reliable trading signals, and improved developer productivity through clearer CLI commands (sync-dex). Technologies/skills: Rust, async streaming, high-performance CLI tooling, robust data validation, and cross-chain pool parsing (including Arbitrum ecosystems).

July 2025

4 Commits • 2 Features

Jul 1, 2025

In July 2025, delivered substantial enhancements to nautilus_trader's blockchain data pipeline and DEX pool synchronization, focusing on data integrity, performance, and reliability. Key changes include PostgreSQL caching and optimized synchronization in the Blockchain Data Client, a refactor of DEX configuration, factory deployment block numbers for data correctness, and improved database loading, caching, error handling, and logging for DEX pool synchronization in the blockchain adapter. These improvements reduce data latency, increase resilience of data pipelines, and provide a solid foundation for scalable deployment and analytics-driven decision making.

June 2025

2 Commits • 1 Features

Jun 1, 2025

June 2025: Delivered end-to-end DEX analytics data collection across blockchains in the nautilus_trader repository, focusing on swap events and liquidity updates (mints/burns). Implemented in the blockchain adapters with dedicated syncing, caching, and persistence to enable robust business analytics and insights. This work lays the foundation for cross-chain liquidity and swap analytics, improving data completeness and decision support for product and business teams.

May 2025

2 Commits • 2 Features

May 1, 2025

May 2025 monthly summary for nautechsystems/na Nautilus Trader: Focused on delivering robust live data infrastructure and expanding DeFi data coverage to support traders and analytics. The changes emphasize business value, data reliability, and scalable data pipelines.

April 2025

5 Commits • 3 Features

Apr 1, 2025

April 2025: Focused feature deliveries and reliability improvements in nautilus_trader, establishing a blockchain-domain foundation, improving observability, and enabling multi-network live updates. These changes provide a scalable data model, safer RPC data interchange, and faster incident response for trading workflows.

March 2025

6 Commits • 2 Features

Mar 1, 2025

March 2025 monthly summary for nautechsystems/nautilus_trader. Delivered major features and backtest architecture modernization with strong business value and technical impact. Key commits included: 952e0bf90fbaea05ba9a25d2814003c29a20592e, 49f5593bd8cd6f084b9fbc42e9077b2bea5cc452, bce11a1a7a468f56d221ab4972224a6fb0d8d200, c228c5c0c9000927c7749d759b7f22c0c0c2e20f, dfd23a0af0d67a057aab72806f7e4cb9d80a43cd, 5a5b0d885b51a37bca46bf8cf4bd5a90d011b974.

February 2025

7 Commits • 5 Features

Feb 1, 2025

February 2025 monthly summary for nautechsystems/nautilus_trader: Implemented and ported conditional order types (market-if-touched, limit-if-touched), added market-to-limit processing, refactored trailing stop handling into unified paths for consistency, fixed critical order status logic (partial/FOK) to improve reliability, and introduced cache benchmarking tooling to quantify performance and guide future optimizations. These changes enhance order execution accuracy, routing, and maintainability while enabling measurable performance analysis.

January 2025

16 Commits • 2 Features

Jan 1, 2025

January 2025 monthly work summary for nautilus_trader focused on delivering end-to-end order execution capabilities, expanding simulation readiness, and strengthening stability and test coverage. The month centered on completing feature delivery in the OrderMatchingEngine, enabling realistic trading workflows in both live-like and simulated environments, while ensuring robust reliability and maintainability across the Rust stack.

Activity

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Quality Metrics

Correctness90.6%
Maintainability84.8%
Architecture87.2%
Performance82.4%
AI Usage39.0%

Skills & Technologies

Programming Languages

CythonMakefileMarkdownPythonRustSQLShellSolidityTOML

Technical Skills

AMMAMM (Automated Market Maker) developmentAPI DesignAPI DevelopmentAPI IntegrationAPI developmentAPI integrationAccount ManagementAlgorithm DesignAlgorithmsAsynchronous ProgrammingAsynchronous programmingBack-end DevelopmentBackend DevelopmentBacktesting

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

nautechsystems/nautilus_trader

Jan 2025 Apr 2026
16 Months active

Languages Used

PythonRustMakefileMarkdownSQLTOMLShellSolidity

Technical Skills

API IntegrationAccount ManagementBack-end DevelopmentBackend DevelopmentBacktestingCache Management