Senior Fullstack Engineer (all genders)

About the role

Too easy is boring! Together, we are on a mission to drive forward the energy transition. We love what we do, and we are unafraid to dive in. We believe in taking ownership of our work and in continuously growing and evolving. In short: own it, love it, grow with it. We are a humble team of coffee and maté lovers with over 20 nationalities. With our geek humor, our love for emojis and random facts is only natural. Over 130 envelians are already on board. Dive in and thrive!As  Senior Fullstack Engineer (all genders) you enhance our diverse engineering squad with your expertise. Together, you drive the scaling of our products and have an impact on our users, our organization, and our engineering practices. You are part of a cross-functional team and develop user-friendly applications which bring effective customer value
You conceptualize, develop, and implement high-quality backend and frontend solutions to continuously evolve envelio’s core products — taking ownership of the entire development process from concept to implementation, testing, and go-live in an agile environment.
You design and interact with APIs, both in external interaction as well as communication with the product’s frontend
You have a continuous improvement mindset and actively look for ways to bring our code to industry best practices with confidence.
Perfection is a myth! We’re more interested in the human behind the screen, so think of these criteria as helpful directions — we're excited to see how your unique skills might fit in. You have + 3 years of relevant experience in the development (frontend + backend) of web applications
You have experience with Python, ideally in the context of designing or interacting with APIs as well as integration with 3rd party systems
You are business-fluent in English (Level C1)
You have already worked with SQL databases for data modeling and writing queries
You have strong experience in modern frontend development and are proficient with at least one JavaScript framework such as  Vue, React, or Angular
You are a teamplayer and passionate about working with talented and inspiring people
You are familiar with parts of our tech stack and are looking forward to keeping up with current industry best practices
You are looking for technical challenges and pride yourself in finding smart and creative solutions
Agile working method with Kanban in interdisciplinary squads
Continuous integration / Continuous delivery
Clean (and simple) code, documentation
High unit test coverage and regular code reviews
Knowledge sharing sessions between developers
“You Code it – You Own it” – Squad responsibility for certain functional areas of the product
Python, incl. additional packages/frameworks e.g. FastAPI, Pytest and Celery, PostgreSQL, RabbitMQ, Redis, Vue.js, Pinia, PrimeVue, TypeScript, TailwindCss Flexible working mode  within Germany, Spain or the Netherlands: Hybrid, from home (#LI-Remote) or in our lovely office in Cologne
Option for remote work   from abroad (up to three months per year from anywhere in the EU or the USA)
State of the art technology  and modern tech stack
Excellent hardware equipment (16 inch MacBooks, 2 screens at your workplace)
30  holidays +  3  corporate holidays
Support for your health through  sports membership cooperations
Professional   mental wellbeing support   through our partner nilo for you and your family
Flexible use of a monthly mobility budget (e.g. Jobrad, public transport)
Time and resources  for individual growth
Regular tech & growth talks for internal knowledge sharing
envelio pension plan
Regular company and team events