Backend Developer - Data (f/m/d)

TN Germany; Würzburg; Remote; EUR 60,000 - 80,000; Full time

Job summary

Join a dynamic team at a leading company in the energy sector as a Python Developer. You will build data-intensive applications in AWS, manage energy devices, and collaborate with cross-functional teams. Enjoy flexible working arrangements, generous holidays, and opportunities for personal growth.

Benefits

30 holidays per year

Work from home flexibility

Car and bike leasing offers

Company pension scheme

Comprehensive insurance packages

Qualifications

• Several years of experience in building enterprise-grade Python applications.
• Experience with SQL-based libraries and AWS services.

Responsibilities

• Build Python data-intensive applications based on microservice architecture.
• Implement ORMs for energy data management backend systems.
• Support data scientists to refactor analytical apps into production-ready applications.

Skills

Python

SQL

Communication

Tools

SQLAlchemy

Peewee

Docker

Kubernetes

Job description

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Client:

Leverage AWS AP

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Other

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EU work permit required:

Yes

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Job Reference:

Job Views:

1

Posted:

13.05.2025

Expiry Date:

27.06.2025

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Job Description:

About the team

In this position, you will be part of our Chapter Software Engineering. The chapter represents all experts who deliver essential software development and engineering capabilities to all our product teams. These experts are organized together to keep E.ON’s code base modern, secure, and excellent.

The products you will be working on belong to our team Digital Solutions | Future Energy Home. This team develops and operates software to manage home energy devices such as photovoltaic systems, inverters, batteries, EV charging wall boxes, heat pumps, and meters as a cloud-based solution for our central and local units, enabling rollout to end-customers. We integrate with numerous vendors’ devices and apply centralized insights, analytics, and control mechanisms for these devices.

Meaningful & challenging - Your tasks

• Build Python data-intensive applications based on microservice architecture using DDD & CQRS within AWS cloud
• Implement ORMs for our energy data management backend system using libraries such as SQLAlchemy, Peewee, and access databases like TimescaleDB, AWS RDS (MySQL, PostgreSQL) with Python
• Leverage AWS API Gateway and AWS AppSync to build energy management data products for transactional and analytical operations
• Support cross-functional domain data scientists to refactor their analytical apps into production-ready applications using software design patterns and principles such as Factory/Observer, clean code, and SOLID principles
• Continuously integrate, package, and test code changes into GitLab repositories based on Gitflow branching strategy, with unit tests and BDD integration test scenarios

Authentic & ambitious - Your profile

• Several years of experience in building enterprise-grade Python data-intensive applications using best practices such as DDD, CQRS, and TDD principles on AWS cloud
• Several years of experience in SQL-based Python libraries such as SQLAlchemy/Peewee to access AWS RDS (MySQL & PostgreSQL) databases
• Multiple years of experience in AWS services such as API Gateway, AWS AppSync, AWS IAM, AWS Cognito, Lambda, AWS PowerTools, DynamoDB
• Profound knowledge in building Python applications using Factory/Observer design patterns, clean code/SOLID principles, Docker & Kubernetes
• Effective communication skills and ability to assist others and contribute to a “Community of Practice”

We provide full flexibility: Work from home or any location in Germany, including offices from Hamburg to Munich. Want more? Go on a workation for up to 20 days per year within Europe.

Recharge your battery: 30 holidays per year plus Christmas and New Year's Eve. You can exchange parts of your salary for more holidays or take a sabbatical if needed.

Your development: We support your growth through on-the-job learning, peer exchange, or individual training to advance your personal and professional skills.

Let’s empower each other: Engage in our Digital Empowerment Communities for collaboration, learning, and networking.

We elevate your mobility: Car and bike leasing offers, subsidized Deutschland-Ticket, and more.

Let’s think ahead: Company pension scheme and comprehensive insurance packages to secure your future.

This is not all: We look forward to discussing additional benefits with you during the recruitment process.