Frontend Developer

Your Mission

At Circunomics, we are transforming the circular economy with groundbreaking solutions for the lifecycle management of batteries. As a dynamic startup leading the charge in green technology and sustainability, we harness the power of cutting-edge software and data-driven insights to:

• Optimize efficiency
• Minimize waste
• Make a meaningful impact on the environment

Join our dedicated team of innovators as we pave the way for the future of battery technology and drive the global transition toward a sustainable energy future.

CX-Video 2023: Watch here
Product Video 2023: Watch here

Your Profile

As a Frontend Developer, you will:

• Develop and maintain a state-of-the-art analytics-based Lifecycle Management platform and marketplace using Angular
• Visualize complex battery data and usage KPIs using frameworks like ECharts, D3, Chart, or Recharts
• Continuously leverage, maintain, and extend our Component Library (Storybook)
• Implement GDPR-compliant security and optimize performance using smart caching
• Contribute to architectural decisions and component design strategy
• Work in an agile interdisciplinary team with product managers, UX designers, and backend developers to integrate REST APIs
• Develop and integrate E2E tests according to test definitions
• Provide a robust application with high-test coverage (unit tests)
• Continuously maintain and sustain technical documentation

You Have

• Degree in computer science or a similar technical field
• 3+ years of experience in architecting and implementing scalable, multi-component User Interfaces
• Proficiency in JavaScript, TypeScript, HTML, CSS/SASS
• Strong knowledge of Angular 17+ and charting frameworks
• Expertise in component-based architecture, state management, and reusable UI components
• Experience with ES Lint, Prettier, Husky, Jasmine, or Karma
• Solid understanding of RESTful API design and implementation
• Familiarity with CI/CD pipelines using GitHub Actions
• Excellent communication skills
• Experience working as part of a remote team
• Proactive attitude and motivation to improve the work
• Experience with software releases
• Good command of English (German is a plus)

Bonus Points For

• AWS Certifications
• Experience with backend technologies (PHP, Node.js) and IaaS
• Ability to implement UX analytics for user activity insights

Why Us?

• Flexible Working Hours: Enjoy work-life balance with autonomous scheduling
• €50 Monthly Perks: Use on wellness, dining, or lifestyle benefits
• 28 Holiday Days + Public Holidays: Carry over or earn extra days
• Dedicated L&D Budget: Invest in professional and personal development
• Hybrid Work Options: Work from home full-time or part-time with flexibility
• Flat Hierarchies: Open communication and collaborative decision-making
• Career Growth & Mentorship: Creative freedom, mentorship, and leadership opportunities

About Us

Circunomics GmbH, based in Mainz, Germany, was founded in 2019. We offer a comprehensive battery lifecycle management solution. Co-Founders Felix Wagner and Jan Born aim to establish a true circular battery economy by maximizing each stage of battery life—from automotive, to energy, to recycling.

Our AI-powered B2B marketplace allows for the buying and selling of battery cells, modules, and packs. Our Analytics product offers detailed insights such as current SoH and 2nd-life simulations to support efficient lifecycle management.

We are backed by key players like:

• Next Mobility Labs
• TES (Recycler)
• Orlen VC
• Dr. Peter Mertens (former CTO of Audi)

Series A funding was completed in December 2024 with Schaeffler and GET Fund joining as investors.

In January 2025, we officially expanded into the US Market with the hiring of Adam Willmouth as US Managing Director.

Awards

• Frost & Sullivan 2023: Market Leadership Award for the European Circular Marketplace for Battery Trade
• Automobilewoche & McKinsey & Co.: 2nd Best Startup in the Automotive Industry (2023)
• Motor Presse Stuttgart: Safety & Environment Award (2024)

Publications & Podcasts

• Auto motor und sport podcast
• Spotify Episode
• E-world Essen
• Easy Engineering — Most Advanced Digital Life Cycle