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Senior Quant Developer
Sigma Software · Remote, Lower Silesian Voivodeship, Poland
About The Role
- Design, develop, test, and deploy quantitative trading and portfolio management solutions 
- Develop and maintain research, backtesting, and portfolio optimization frameworks 
- Analyze historical and real-time market data across multiple asset classes 
- Implement validation, simulation, and performance testing methodologies 
- Integrate machine learning models into quantitative workflows where applicable 
- Collaborate with engineering and quantitative teams to deliver production-grade solutions 
- Contribute to software architecture, code quality, automation, and operational excellence 
- Monitor and improve strategy performance, scalability, and system reliability 
- Participate in technical discussions, design reviews, and solution planning 
- Optimize data processing pipelines and analytical workflows for performance and scalability 
- 5+ years of commercial software development experience 
- Strong Python development expertise 
- Hands-on experience with Pandas, Polars, NumPy, or similar data processing libraries 
- Experience building quantitative analytics, research, or trading systems 
- Strong knowledge of statistics, probability, and quantitative modeling techniques 
- Experience with backtesting frameworks and performance analysis 
- Understanding of portfolio construction and risk management concepts 
- Experience working with relational and time-series databases 
- Practical knowledge of PostgreSQL or equivalent databases 
- Experience with Git, Docker, and CI/CD practices 
- Strong analytical thinking and problem-solving skills 
- Upper-Intermediate or higher English level 
WILL BE A PLUS
- Experience with VectorBT, Backtrader, QuantConnect LEAN, or similar platforms 
- Exposure to machine learning frameworks such as PyTorch, XGBoost, or LightGBM 
- Knowledge of equities, futures, forex, or cryptocurrency markets 
- Experience with FIX protocol integrations 
- Exposure to Java or C++ 
- Experience with cloud platforms and distributed systems 
- Background in institutional trading, fintech, or investment management solutions 
PERSONAL PROFILE
- Ability to work independently 
- Ability to convey ideas, recommendations, and strategy clearly 
- Excellent verbal and written communication skills 
- Strong collaboration and teamwork abilities 
- Proactive and ownership-driven mindset 
- Strong attention to detail and analytical thinking 
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