Senior Python Developer

Engineer the Backbone of Modern Data Solutions

Warsaw-based opportunity with the possibility to work fully remote!

As a Senior Python Developer, you will be working for our client, a global leader in life sciences dedicated to advancing healthcare and agriculture. You will contribute to a large-scale project that focuses on building and maintaining high-performance data-driven platforms, leveraging modern cloud technologies to process and analyze vast amounts of critical information. This position offers the opportunity to influence architecture, improve data pipelines, and drive innovation in environments with high demands on scalability and performance, all while ensuring compliance with industry standards and best practices in software engineering.

Your main responsibilities: Design and implement scalable backend services with Python 3.x

• Develop secure REST APIs using FastAPI and Pydantic
• Optimize SQL queries and design efficient data models in BigQuery
• Build and maintain ETL pipelines with orchestrators such as Airflow
• Integrate and manage solutions within GCP services like Pub/Sub, Cloud Functions, and Cloud Storage
• Ensure cost-effective cloud resource usage through monitoring and tuning
• Collaborate with teams to define technical designs, RFCs, and runbooks
• Implement robust authentication, authorization, and security practices
• Handle high-load system design challenges such as throughput and backpressure
• Support CI/CD pipelines and automation with Cloud Build or equivalent tools

You’re ideal for this role if you have:

• 7+ years of professional software engineering experience
• 4+ years of production experience with Python 3.x
• Strong knowledge of FastAPI, Pydantic, and asynchronous programming
• Proven expertise in SQL, data modeling, and BigQuery optimization
• Hands-on experience with GCP services (Pub/Sub, Cloud Functions, Cloud Storage, IAM)
• Track record designing and operating high-load distributed systems
• Experience with ETL processes and orchestration tools like Airflow
• Familiarity with CI/CD pipelines and automation practices
• Excellent communication and ownership skills in cross-functional environments
• Strong focus on security best practices and data protection

It is a strong plus if you have:

• File parsing at scale (CSV/Excel/XML), schema evolution/versioning
• Data quality frameworks (assertions, expectations), dbt/Dataform familiarity
• Event-driven or streaming backgrounds; Beam/Dataflow experience
• Concurrency/performance profiling in Python (asyncio, multiprocessing)
• IaC (Terraform), SRE practices

#GETREADY  to meet with us!

We would like to meet you. If you are interested please apply and attach your CV in English or Polish, including a statement that you agree to our processing and storing of your personal data. You can always also apply by sending us an email at cv-recruitment@itds.pl.

Internal number #7607