Middle/AI/ML Engineer

Department: Internal

Location: Warsaw, Poland

Employment Type: FullTime

We build an insight-driven platform that turns complex candidate and hiring data into clear, actionable hiring intelligence. Our demo is already being tested by fast-growing scaleups as we prepare for broader product rollout and adoption by a growing number of companies.

We are expanding the engineering team to accelerate development and scaling. In this role, you will work on core product systems and directly influence how the platform evolves as we enter the next stage of growth.

Responsibilities:

• Develop and maintain LLM-based extraction pipelines (resume parsing, skill extraction) using OpenAI and Google Gemini APIs.

• Design and iterate on prompts for structured data extraction and multi-criteria candidate evaluation.

• Data processing, transformation and storage.

Required Skills:

Python (3.11+) (2+ years of experience)

• Knowledge of Production ready code approaches.

• Async programming (asyncio, async/await).

• Pydantic for data validation and structured schemas.

ML / AI

• Practical experience with LLM APIs (OpenAI, Gemini, or similar) — prompt engineering, structured outputs, multi-turn conversations.

• Understanding of text embeddings and semantic similarity (cosine similarity, vector search).

• Basic PyTorch: building and training simple neural networks (MLP classifiers).

• Scikit-learn fundamentals (metrics, train/test splitting, preprocessing).

Data Engineering

• PostgreSQL — schema design, queries, upserts.

• Data transformation and normalization patterns.

Nice to Have:

• GCP, Git, GitHub Actions.

• Familiarity with recruitment/HR tech domain.

• Experience with pandas for data processing.

Personal Fit

We are a small team, so mindset and ownership matter as much as technical skills. You’ll thrive here if you:

• Are a doer. You approach your work with an ownership mindset and attention to quality. You take responsibility for outcomes, not just tasks. You care about quality, reliability, and long-term impact.

• Care about engineering excellence. You continuously improve systems and code. You don’t settle for “good enough” when it can be better.

• Are curious and proactive. You explore, experiment, and learn. Innovation starts with curiosity and a willingness to try new approaches.

• Communicate clearly. You share ideas, progress, and challenges openly and directly. Clear communication helps us move fast and work effectively.

What will you get?

• Flexible work format — the freedom to work remotely or from our Warsaw office, depending on your preference.

• A strong growth environment and the opportunity to build a product from its early stage — you will work on meaningful engineering challenges, contribute directly to core system design, and collaborate closely within a small, focused team of four engineers where your impact is visible and significant.