Senior Backend Engineer - Core Team (f/m/d) at envelio

Your Profile

• You have +3 years of relevant experience in web application development with a focus on backend components, data modelling and infrastructure.
• You have experience with relational databases in the architecture of Data Models, preferably Digital Twins, and the design of queries, preferably in PostgreSQL.
• You have extensive experience with Python, ideally related to orchestration and parallelization of tasks in the context of multi-processing, e.g. with Celery.
• You have experience with graph-data, e.g. through experience with graph databases or other graph tooling such as networkX.
• You are a team player and passionate about working with talented and inspiring people.
• You prefer complex, technical challenges and have high standards for your elaborate and intelligent solutions.
• You are familiar with parts of our tech stack and are looking forward to keeping up with current industry best practices.
• Optionally, you are familiar with one or more of these topics: distributed computing, graph theory and geoinformatics.
• You are business-fluent in English (Level C1).

How we develop Software

• Agile working method with Kanban in interdisciplinary squads.
• Continuous Integration / Continuous Delivery.
• Unit Test mentality and 4-eyes principle during code reviews.
• Knowledge sharing sessions between developers.
• “You Code It – You Own It” – Squad responsibility for certain functional areas of the product.

Our Tech Stack

• Python, incl. additional packages/frameworks e.g., FastAPI, Pytest and Celery.
• PostgreSQL.
• RabbitMQ, Redis.
• Docker, Kubernetes.

Your Role

As (Senior) Backend Engineer - Core Team (f/m/d) you will be part of an engineering squad with strong knowledge in software architecture, data modelling and graph-functionality. Together, you drive the development of the GridHub - our Core Component which feeds all applications - and directly influence the experience of our users, our organization, and our engineering practices.

How You Make an Impact

• As part of the Core team, you directly influence the shape and functionality of our Digital Twin, by designing interfaces and generalized functionality for complex requirements.
• You develop and extend cross-application workflows that ensure data integrity for planning and live applications. In doing so, you always strive to capture the app-specific requirements in a universally applicable solution.
• You familiarize yourself with our individual and domain-specific solutions within the modelling and calculation of electrical grids and improve them in an independent and innovative way.
• You are actively involved in the design and improvement of our system architecture in the area of code, data model and infrastructure.
• You exchange ideas with other developers to enable a smooth interaction between the different components.

Your Benefits

• Flexible working mode within Germany: Hybrid, from home or in our lovely office in Cologne.
• Option for remote work from abroad (up to three months per year).
• Excellent hardware equipment: 16 inch MacBooks, 2 screens at your workplace.
• 30 holidays + 3 corporate holidays.
• Support for your health through sports membership cooperations.
• Flexible use of a monthly mobility budget (e.g. JobRad, public transport).
• Time and resources for individual growth.
• envelio pension plan.
• Regular company and team events.