We are currently seeking a candidate for the position of Mid Python Engineer (FastAPI). The ideal candidate should possess advanced Python 3.10+ skills and have hand-on experience with FastAPI framework.Knowledge and experience working with any combination of: PL/SQL, Google Cloud Platform, Angular will be considered as a significant advantage.Requirements: Minimum 3 years of professional experience as a Python Developer, with a strong command of Python 3.10+ Strong academic background - Computer Science or related field Master’s degree required Extensive experience with FastAPI framework Familiarity with Pydantic and SQLAlchemy Solid knowledge of Pandas and NumPy libraries Strong experience in object-oriented programming (OOP) Ability and practice Writing unit tests using Pytest Understanding and practical knowledge related to databases, specifically prior experience with PL/SQL

Good software engineering practices: clean code, testing (PyTest) and version control (Git)

Strong problem-solving and analytical skills, with a proactive approach to tackling complex issues Excellent communication skills and collaborative mindset Ability to work independently while contributing to the team’s growth and project's success Strong sense of ownership and responsibility

Proficiency in Polish (C1) and English (B2)

Nice to Have: Familiarity with any of: Google Cloud Platform, Snowflake, Angular, Airflow, dbt Relevant trainings or certifications in any of the required tools/technologies Contribution to free-time projects, blogs and other community involvement Responsibilities: Development of an application for data collection, processing and reporting in Python using object-oriented programming Working with FastAPI framework Writing unit tests using Pytest Migration of enterprise solution from PL/SQL to Python within the same GUI Spec-driven development using AI agents Design transactional ETL processes using Python and SQL Build Python packages supporting custom ETL workflows Develop low-level Python connectors for various market tools Continuously improve existing architecture by: identifying and resolving technical bottlenecks, introducing new tools, technologies, and best practices Contribute to the design and development of data warehouses and data lakehouses (based on relational databases) Write high-throughput data transformations and quality checks using SQL (dbt) What we offer ? Honest Compensation - A career path supported by a competitive and transparent salary structure. Flexible Benefits Package - Tailor our benefits package to your individual needs. Dynamic Professional Growth - Opportunities for continuous professional development within a challenging and dynamic IT environment. Expert Team Collaboration - Everyday teamwork with seasoned experts specializing in database solutions. Flexible Work Options - Enjoy the flexibility of hybrid or remote work based on seniority and project requirements. Work-Life Balance - Embrace flexibility in working hours. Recruitment processWe believe in a simple and transparent recruitment process.We will reply to your application within 3 days. We will try to close the entire recruitment process within 3 weeks. That's our promise. Online meeting- let's get to know each other. Homework - tasks to do within 1 week, so we can initially assess your skills. Online or office meeting with the development team - showcase your technical skills and experience during the interview, learn more about the project and meet your future colleagues. Job offer - we'll send you a job offer and contract draft, you review and decide on engagement. Just Join ;) Who is DataFuze ?We are a boutique software development company.At DataFuze, we create and deliver data-driven IT solutions that empower our clients' data and provide lasting value for their businesses. At the forefront of our culture are these core values :  Technical Mastery : dedication to excellence in technical skills, ensuring a deep understanding of the latest industry trends and best practices, commitment to delivering scalable and efficient software solutions. Ownership and Accountability : encouraging a strong sense of responsibility among all team members to maintain the highest standards at every stage of the software development lifecycle. Client-Centric Agility : prioritizing the needs and satisfaction of clients by staying agile, responsive, and adaptable to evolving project requirements. Innovation Excellence : embracing a culture of constant learning, technological exploration and creative problem-solving to deliver cutting-edge solutions. Collaborative Synergy : fostering a collaborative and inclusive environment, where diverse talents work seamlessly together, sharing knowledge and expertise to achieve success.