Backend Python Developer

Backend Python Developer

We are looking for an experienced Backend Python Developer to join a long‑term project for the pharmaceutical industry. The project focuses on building reliable, secure, and scalable backend services that support critical business and data-driven processes in a regulated environment. High code quality, testability, and well-designed APIs are key success factors.

Work mode: 100% remote

Tasks

• Designing and implementing backend services with a strong focus on API quality and reliability

• Creating well-structured, self-documented REST APIs

• Writing clean, maintainable, and testable Python code

• Collaborating closely with other engineers and DevOps teams

• Ensuring performance, security, and scalability of implemented solutions

Requirements

• Solid understanding of best practices for API endpoint design and error handling

• Practical knowledge of JWT tokens and authentication mechanisms

• Strong experience with Python 3.12 or newer

• Writing correctly typed code using Python typing

• Practical experience with asynchronous programming

• Knowledge of decorators and context managers

• Habit of writing unit tests alongside production code

• Hands-on experience with FastAPI and Pydantic

• Good understanding of Dependency Injection

• Ability to design correct and robust models (validation, sanitization)

• Experience with self-documenting APIs using OpenAPI/Swagger

• Practical experience with SQLAlchemy 2.0

• Ability to write clear and reasonably efficient database queries

• Basic understanding of Docker image creation principles

• Ability to read and modify GitLab CI/CD pipelines

• Practical experience navigating AWS services, especially: EKS, ECR, Load balancing

• Fluent English

We offer

• Ongoing support from a dedicated agent, taking care of your project continuity, client contact, necessary formalities, work comfort and development, 

• Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, 

• Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle, 

• Spectacular integration events, both for you (e.g., annual Kick-Off trip, Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), 

• Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, 

• Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, 

• A complete benefits package, including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad. 

About 7N

Constantly searching for projects, difficult rate negotiations, lack of development support – sounds familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. 

Our mission is to provide stable and rewarding collaborations that drive your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience creating IT solutions for over 200 organizations.