Hybrid Frontend Developer, Energy Trading

at Next Kraftwerke

• Job title: Frontend Developer, Energy Trading
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Cloud, Docker, GraphQL, JavaScript, Node.js, Nuxt, Python, TypeScript, Vue.js
• Location requirements: Hybrid, Cologne, Germany

About the role

• Frontend Developer developing an Asset Management Tool (AMT) for energy trading teams. Collaborating on backend integrations and ensuring software quality and scalability while working flexibly in a hybrid model.

Responsibilities

• As a Frontend Developer, you will develop the Asset Management Tool (AMT) — a central application that enables our 24/7 trading teams to control and optimize large industrial and energy assets across multiple markets.
• The AMT is the technical core of our Cross Product Optimization (CPO) initiative and allows us to operate highly complex industrial customers efficiently and to scale further.
• With your deep expertise and strong communication skills, you will understand business requirements, challenge them constructively, and translate them into a scalable software solution.
• You will work on backend integrations (e.g., REST / GraphQL APIs with Python FastAPI or Node.js) to connect data flows from internal systems and external TSO platforms.
• You will build and maintain modern CI/CD pipelines with GitHub Actions and automate deployments using Docker.
• You will work closely with stakeholders from Trading, Business Development, and Architecture to align technical solutions precisely with operational requirements.
• You will ensure code quality, testability, and maintainability from prototype to production.
• You will actively shape the technical roadmap and evaluate new frameworks and tools to continuously improve our solutions.

Requirements

• You have at least three years of experience in frontend development with Vue.js and NuxtJS and are confident with HTML, CSS, and TypeScript.
• You have solid knowledge of backend technologies such as Python, Node.js, REST/GraphQL APIs, and data modelling.
• You have experience with CI/CD pipelines (e.g., GitHub Actions) and containerization with Docker, as well as a basic understanding of cloud environments.
• You understand complex technical and business contexts and can communicate them clearly and purposefully to non-technical stakeholders.
• You have a strong quality mindset, work independently, and are eager to help shape a strategically important product from the ground up.
• You are fluent in German and English, both written and spoken.

Benefits

• Hybrid and flexible working, including home office equipment
• The option to accrue and flexibly use additional vacation days through our flextime model
• Extensive professional development opportunities such as language courses, coaching, and training
• Company bike (JobRad) and Deutschlandticket (regional transit pass)
• Sports offerings such as Urban Sports Club membership and yoga classes
• Regular events: summer party, Christmas party, LAN party, after-work pizza & drinks
• External support in finding daycare places (Kitaplätze) and assistance with other personal and professional challenges