Senior Machine Learning Engineer

Bulgaria Europe Europe (remote) Hungary Poland Ukraine Machine Learning Python Software Developer

Required skills

Machine Learning frameworks / strong
Python / strong
Big Data frameworks / good
Cloud platforms / good

We are looking for a Machine Learning/AI Engineer to build and optimize predictive models for the “Magnificent 7” stocks (NVDA, AAPL, META, TSLA, GOOG, MSFT, and AMZN), using techniques like time-series analysis, sentiment modeling, and advanced feature engineering.

As a Machine Learning/AI Engineer, you’ll design, implement, and maintain a range of advanced AI/ML models aimed at boosting trading performance. Using up to a decade’s worth of historical market data — collected daily, every 4 hours, or hourly — you’ll ensure robust, data-driven insights that power our core strategies.

Customer

The client is a fintech company that develops AI-driven trading solutions tailored to the stock market. Our goal is to design strategies that maximize risk-adjusted returns for portfolios.

Requirements

  • At least 5 years of experience in Machine Learning or AI-related roles with a focus on financial data modeling, quantitative analysis, or algorithmic trading systems
  • Proficiency in Python, with hands-on experience using libraries such as TensorFlow, PyTorch, scikit-learn, and XGBoost
  • Familiarity with big data frameworks (e.g., Spark, Dask) and cloud platforms like AWS or GCP
  • Proven track record of developing and deploying trading models or financial strategies
  • Strong experience in time-series forecasting, financial data analysis, and feature engineering for stock market data, including technical indicators and sentiment analysis
  • Expertise in hyperparameter tuning techniques, model optimization, and performance enhancement
  • Solid foundation in statistics, probability, and optimization methods, with knowledge of risk management metrics such as Sharpe Ratio, Alpha, and Beta for portfolio optimization
  • At least an Upper-Intermediate level of English

WILL BE A PLUS

  • Experience in proprietary trading, hedge funds, or asset management firms
  • Knowledge of trading platforms such as Interactive Brokers, Alpaca, or similar systems
  • Knowledge of options pricing, derivatives, or quantitative trading strategies
  • Familiarity with alternative data sources, including news sentiment, social media trends, and other non-traditional datasets for market analysis
  • Experience with transformer models (both language and visual)
  • Hands-on experience with backtesting tools like Zipline or Backtrader
  • Familiarity with Docker, Kubernetes, and CI/CD pipelines for scalable model deployment

Personal Profile

  • Strong critical thinking and problem-solving skills, with the ability to assess and challenge model assumptions
  • Excellent communication skills for presenting complex concepts
  • Ability to work both independently and collaboratively in fast-paced, dynamic environments

Responsibilities

  • Collect, clean, and preprocess historical financial data, extracting meaningful features such as moving averages, RSI, and volatility indicators to enhance model performance
  • Design and train predictive models (e.g., LSTM, XGBoost, Random Forests) with rigorous backtesting, hyperparameter tuning, and evaluation using metrics such as Sharpe Ratio, Sortino Ratio, and Maximum Drawdown
  • Deploy models in production environments, monitor performance, address data drift through retraining, and collaborate with teams to integrate insights into trading systems while maintaining thorough documentation

WHY US

  • Diversity of Domains & Businesses
  • Variety of technology
  • Health & Legal support
  • Active professional community
  • Continuous education and growing
  • Flexible schedule
  • Remote work
  • Outstanding offices (if you choose it)
  • Sports and community activities

REF3240Y

Share this vacancy

apply now

apply now

    OR

    Drop your CV here, or

    Supports: DOC, DOCX, PDF, max size 5 Mb

    Take a quiz

    Take a quiz

      Was it comfortable to apply the CV?


      How did you find us?




      Did you hear about us before visiting the site?