07/21/2025 updated
100 % available
Senior Backend Developer (Python, Django, FastAPI, GCP, AWS, SQL, ...)
Danzig, Poland
Only remote
Computer ScienceApplication Programming Interfaces (APIs)Google BigQueryExtract Transform Load (ETL)DjangoPython (Programming Language)PostgreSQLMachine LearningMicrosoft SQL ServersNoSQLNumPyRabbitMQRedisSQL DatabasesSQLAlchemyData Streaming
Python, AWS, BigQuery, Celery, Dataflow, Django, Docker, ETL, FastAPI, Firebase, Firestore, Flask, GCP, Google Cloud Platform, Grafana, Graphite, Kubernetes, k8s, Machine Learning, MSSQL, NoSQL, numpy, pandas, postgres, Postgresql, PubSub, RabbitMQ, Redis, REST API, SQL, SQLAlchemy, SQLServer
Experience
Professional experience10+ years
Freelancer since2020
Languages
GermanGoodEnglishFluentPolishNative speaker
Project history
- Designed and implemented backend for messaging app for communication between pilots and ground controllers
- Designed and implemented service for consuming pub/sub events and delivering push notifications to mobile app
- Implemented high-performance (2000 msgs/s) service for consuming and storing tracks data
- Designed and implemented service for consuming pub/sub events and delivering push notifications to mobile app
- Implemented high-performance (2000 msgs/s) service for consuming and storing tracks data
- Led development of data processing pipeline on Google Cloud Platform, resulting in over 300% increase in efficiency for data analytics team (Python, Django, PubSub, Dataflow, Apache Beam, Postgresql, BigQuery)
- Designed and created asynchronous backend with REST API and data processing for finance processes analysis web application (Python, FastAPI, SQLAlchemy, MSSQL)
- Implemented a new AML screening process for a financial institution, resulting in improved efficiency and compliance with regulations (Django, Google Cloud Platform, Postgres)
- Designed and created asynchronous backend with REST API and data processing for finance processes analysis web application (Python, FastAPI, SQLAlchemy, MSSQL)
- Implemented a new AML screening process for a financial institution, resulting in improved efficiency and compliance with regulations (Django, Google Cloud Platform, Postgres)
- Led design and development of mobile onboarding process for a new bank as a Technical Team Leader (team of 5 people) including AML screening and KYC process
- Developed and implemented a new KYC verification system for a major financial institution (Python, Django, SQLAlchemy, MSSQL)
- Implemented image unifier and data pre-processing for AI model training, created REST API and designed database models (Python, Flask, SQLAlchemy, Postgres)
- Developed and maintained large-scale Python applications on Django, Google Cloud Platform and FastAPI in a fast-paced, high-pressure environment for various financial institutions
- Mentored junior developers and improved their Python development skills, specifically on Django, Google Cloud Platform and FastAPI.
- Developed and implemented a new KYC verification system for a major financial institution (Python, Django, SQLAlchemy, MSSQL)
- Implemented image unifier and data pre-processing for AI model training, created REST API and designed database models (Python, Flask, SQLAlchemy, Postgres)
- Developed and maintained large-scale Python applications on Django, Google Cloud Platform and FastAPI in a fast-paced, high-pressure environment for various financial institutions
- Mentored junior developers and improved their Python development skills, specifically on Django, Google Cloud Platform and FastAPI.