Senior Python Developer - Freelance

Missions

As a Senior Python Developer, you will:

• Design and implement backend services in Python to support asset onboarding, contract management, and market operations.

• Develop APIs and data pipelines to integrate application components with the broader information ecosystem, including internal and external applications, the data hub, other data storage systems, and data consumers.

• Build integration with messaging systems (MQTT, RabbitMQ) for real-time data ingestion.

• Work with PostgreSQL for relational and time-series data modelling, optimization, and integrity.

• Leverage AWS services such as RDS, S3, IAM, Lambda, ECS, and Docker.

• Collaborate with product managers and domain experts to translate business needs into scalable software features.

• Contribute to agile delivery processes, including sprint planning, retrospectives, and team coordination.

• Participate in the release process every two weeks.

• Support level 2 on existing applications and on the dedicated releases you deploy in production.

• Perform software development, follow-up, and implementation of fixes, evolutions, and adaptations.

• Deliver corrective solutions or workarounds as needed.

Hard Skills

• 6+ years of Python development experience (application development).

• Proficiency in PostgreSQL, including schema design, performance tuning, and time-series data handling.

• Experience with AWS services (RDS, S3, IAM, ECS, Docker).

• Experience working with APIs, data pipelines, streaming, and other system integration paradigms.

• Familiarity with agile development practices and collaborative delivery environments.

Nice to have:

• React or front-end experience.

• Experience with FastAPI or alternatives (e.g., Flask, Django).

• Familiarity with container orchestration or CI/CD pipelines.

Tools & Environment

• Python

• PostgreSQL

• AWS (RDS, S3, IAM, Lambda, ECS)

• Docker

• Messaging systems: MQTT, RabbitMQ

• Agile methodologies