ML / Quant Researcher (Middle / Senior)

Location: Remote setup with flexible hours. The main office is in Serbia, while the team is distributed.

Salary: Up to $12,000 net per month plus bonuses.

Company

hirify.global is a small, low-bureaucracy trading-focused team working on machine learning and quantitative research.

What you will do

• Develop machine learning and quantitative models for forecasting and signal generation.
• Analyze time-series and real-time market data.
• Test research hypotheses and improve existing trading strategies.
• Work with research and backtesting infrastructure.
• For senior candidates, shape new research directions and trading strategies.

Requirements

• Strong knowledge of Python and the machine learning stack, including NumPy, numba, PyTorch or JAX, and scikit-learn.
• Basic understanding of C++ or the ability to read C++ code.
• Strong mathematical and statistical background.
• Experience with time-series data, market data, hypothesis testing, signal or model validation, and quantitative research.
• Understanding of trading principles, market structure, and market data.
• Middle candidates need experience in ML or quantitative research; senior candidates need proven experience in trading, algorithmic trading, or quantitative research.

Nice to have

• Production C++ development, HFT, arbitrage, market-making, or low-latency systems experience.
• Competitive programming or a strong academic background, including ICPC, Kaggle, or Yandex SHAD.
• Publications at top-tier machine learning conferences or strong results in ML, data science, or quantitative competitions.
• Experience developing complex machine learning or deep learning models.

Culture & Benefits

• Remote work with flexible hours.
• Small, low-bureaucracy team with fast decision-making and rapid hypothesis testing.
• Distributed team with a main office in Serbia.
• Collaboration with specialists from leading universities and technical backgrounds.