(Senior) Frontend Engineer (all genders)

Number of employees

160

Cologne / Remote from Germany

Posted on: 2026-08-03

Category: energy

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Employment type:

Full time

Experience required:

Senior

Salary

Salary not provided

About the company:

⚡ envelio - Supporting the smarter, faster evolution of your power grid. 

We provide distribution grid operators with the Intelligent Grid Platform (IGP) – a software suite that brings all your grid data together to enable real-time decisions, long-term planning, and much, much more. 

With real-time digital twins, automated grid assessments, and live monitoring, IGP empowers DSOs to manage increasing infrastructure complexity, renewable integration, and growing power demand.

Our applications cover the full spectrum of operations and planning:
🔹 Process thousands of connection requests in minutes, not days
🔹 Detect grid congestion risks before they cause trouble
🔹 Simulate and plan new grid areas with confidence
🔹 Evaluate the grid impact of EVs, PVs, and heat pumps before they’re built

IGP integrates seamlessly with existing systems like GIS, NIS, SCADA, MDM, EDM and others – enhancing visibility without overhauling existing workflows. And because it’s modular, grid operators can start where they need impact the most.

Trusted by grid operators across Europe and beyond – from Westnetz to Helen Electricity Network and Eversource – envelio's IGP is setting new standards in grid management and planning, facilitating a smoother transition to renewable energies.

💡 Not sure which part of IGP fits your needs? We’ll help you find it. 
👉 Visit our product pages or message us directly.

🚀 Want to work with us? We're hiring – and with a 95% recommendation rate on Kununu, we're proud of the culture we've built. ⭐ Check our open positions on Kununu: https://www.kununu.com/de/envelio

About Working at envelio

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 200 envelians are already on board. Dive in and thrive!

Your Role

As Senior Frontend 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.

How You Make an Impact

  • 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 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 have a continuous improvement mindset and actively look for ways to bring our code to industry best practices with confidence — including iterating on your team’s implementations and navigating the trade-offs that come with evolving a living codebase.
  • You step up as a technical voice within the team: you communicate clearly, help shape decisions, and know when to lead and when to support others.

Your Profile

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 frontend development of web applications, and enjoy working across different stages of a product’s lifecycle — from shaping new solutions to evolving established codebases.
  • You are business-fluent in English (Level C1)
  • You have strong experience in modern frontend development, are proficient with at least one JavaScript framework such as Vue, React, or Angular, and you design and interact with APIs.
  • You are comfortable navigating ambiguity — you can make progress without a perfect spec and bring structure to open-ended problems.
  • You are a team player who communicates thoughtfully and collaborates effectively: you share context, take on responsibility, and make it easy for others to do the same.
  • When using AI tools, you do it thoughtfully as part of your daily work, while applying sound judgment, critically reviewing and refining the output, and taking ownership of the results you share with others.

How we develop Software

  • Agile working method with Kanban in interdisciplinary squads
  • Continuous integration / Continuous delivery
  • MVP-first mindset iterating based on feedback
  • Knowledge sharing sessions between developers
  • End-to-end ownership for certain functional areas of the product

Our Tech Stack

Python (incl. additional packages/frameworks e.g. FastAPI, Pytest and Celery), PostgreSQL, RabbitMQ, Redis, Vue.js, Pinia, PrimeVue, TypeScript, TailwindCss

Your Benefits

  • Join us fully remote or at our lovely office in Cologne in a hybrid working mode
  • Option for remote work from abroad (up to three months per year from anywhere in the EU or the USA)
  • 30 holidays + 3 corporate holidays
  • Support for your health through sports membership cooperations
  • Flexible use of a monthly mobility budget (e.g. Jobrad, ÖPNV)
  • Time and resources for individual growth
  • envelio pension plan
  • Professional mental wellbeing support through our partner nilo for you and your family
  • Regular tech and growth talks for internal knowledge sharing
  • Regular company and team events

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