Senior Python Developer

AmRest Holdings SE; Warszawa; Hybrid; PLN 220,000 - 320,000; Full time

Job summary

C&F, a technology services company, is seeking a Senior Python Developer in Warsaw with hybrid work options. You will design GenAI-based architectures, build and maintain Python back-end services, and collaborate with data scientists to integrate AI models into applications.

The role requires deep Python expertise, experience with FastAPI/Flask, cloud platforms, and a strong ability to write robust tests. English and Polish communication is essential.

Qualifications

• At least 6 years of Python development experience in backend services.
• Experience with FastAPI (or Flask), SQL and NoSQL databases.
• Ability to write robust unit tests and clean code.
• Experience deploying GenAI-enabled business applications.
• Familiarity with cloud platforms (AWS, GCP, Azure) and CI/CD.
• Excellent English and Polish with strong communication skills.

Responsibilities

• Design architecture of GenAI applications and back-end services.
• Develop and maintain Python code in AI applications and components.
• Perform code reviews and identify areas for improvement.
• Collaborate with data scientists to integrate AI models into apps.
• Develop and maintain APIs and microservices for AI integration.
• Stay up-to-date with GenAI advances and contribute to team culture.

Skills

Python ecosystem

FastAPI/Flask

SQL/NoSQL databases

Unit tests

GenAI in apps

Cloud platforms

CI/CD

English & Polish

Tools

FastAPI

Flask

PyTorch

scikit-learn

Job description

C&F is a technology services company providing innovative solutions inData Management,Big Data, Advanced Analytics and Compliance. With a highly integrated team of 400+ experts, for over 20 years C&F has been delivering superior engineering and premium operations toFortune 500companies, primarily in the Life Science industry.

Senior Python Developer

Workplace
Warsaw/Remote

You will be responsible for:

• Design architecture of GenAI applications,
• Design, develop, and maintain Python code in AI applications and components,
• Code review and identification of areas of improvments,
• Collaborate with data scientists and machine learning engineers to utilize AI models in the applications,
• Knowledge of basic types of solutions using GenAI models (RAGs, agentic workflows, etc.)
• Collaborate with other roles (managers, testers, DevOps, etc.) through the whole life cycle of a project,
• Develop and maintain APIs and microservices for AI integration with other systems,
• Conduct experiments and evaluations to measure the performance of GenAI models,
• Stay up-to-date with the latest advancements in GenAI technologies,Contribute to a collaborative and innovative team culture.

Nice to have:

• Knowledge of another object-oriented programming language (Java/C#/C++)
• Knowledge of Machine Learning algorithms and libraries (scikit-learn, PyTorch)

What you will need:

• At least 6 years of experience and fluency in Python development ecosystem,
• Experience in building back-end services in Python with frameworks like FastAPI (or Flask), SQL and NoSQL databases,
• Knowledge of clean code and design patterns in Python, strong attitude to build well structured, high quality solutions,
• Experience in writing robust unit tests for developed applications,
• Experience in using GenAI models in building business applications,
• Familiarity with cloud platforms (AWS, GCP, Azure) and cloud-native technologies,
• Familiarity with Continuous Deployment lifecycle,
• Excellent problem-solving and analytical skills,
• Ability to work independently and as part of a team,
• Very goodknowledge of English and Polish
• Strong communication and documentation skills

What we offer:

• Learning & development opportunities – after your probation period, you’ll have access to a highly flexible and generous English language reimbursement program, along with an individual development budget to use as you see fit.
• Classic benefits like private medical care, a sports card, and a preferential life insurance plan. Plus, our infamous Fruit Tuesdays and a special summer bonus – ice cream.
• A hybrid work setup with plenty of flexibility. Delivery teams work mostly remotely.Support teams come to the office at least once a week – as an HR team, we meet every Wednesday. On other days, you decide where you work.
• A bunch of non-work activities, including Office Day (a fun-filled day when employees from all over Poland gather at the office), POP UP integrations, various competitions from cooking to photography, and the chance to submit charity causes to our CF4GOOD program, which provides support to those in need.
• A workplace that values people and is built on collaboration, not competition.If you’re tired of toxic work environments, you’ll finally get a chance to breathe. And if you’ve been lucky with great employers so far, we’ll do our best to keep that streak going.