Job
In this role, you will develop data-intensive web applications using React and TypeScript, enhance the data flow between the backend and UI, and design API contracts and testing strategies for E2E and contract tests.
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Job technologies
Your role in the team
- You work on the data flow between the backend and the UI: API contracts, backend-for-frontend, server status, caching, and invalidation.
- Together with the backend team, you’ll continue developing our frontend interface.
- You help us build a testing strategy, including E2E and API contract tests.
- You thoroughly review the code and raise well-founded objections on both technical and product-related matters.
- You work directly with the product and design teams: you clarify the goal and customer value before you start development.
Our expectations of you
Qualifications
- You identify performance bottlenecks throughout the entire data flow through measurements and address them in a targeted manner.
- You have created charts and dashboards for time series and KPIs that remain accurate even with gaps, varying resolutions, and time zones, and that users can understand without explanation.
- Your work is clear and easy to follow: integration, E2E, and contract tests—not just unit tests; small, easy-to-review PRs; concise updates and early warnings about risks.
- You have shipped production features using agentic coding tools (e.g., Claude Code, Codex, or Cursor’s Agent mode), rather than just using AI autocomplete. You break the work down into clear tasks, provide the agent with context and constraints, and review and test every change before it goes into a PR. You can explain every line you submit: the agent speeds up your work, but it doesn’t make decisions.
Experience
- You have more than 5 years of experience with React and TypeScript in complex, data-intensive web applications.
- You have a solid understanding of frontend data architecture: UI state vs. server state, caching, invalidation, and data consistency in asynchronous workflows. You have hands-on experience with state management in React.
- You have extensive API and backend experience: API contracts, request orchestration, and permission boundaries. You have designed frontend interfaces. You solve problems across the frontend/backend boundary.
What we offer
- AI meets Industry: the next big thing.
- Real impact: From day one, you’ll make a tangible contribution to the fight against climate change.
- Entrepreneurial freedom: Flat hierarchies, maximum responsibility, and the freedom to shape things. Your ideas are not just welcome—they’re essential to encentive’s continued growth.
- Modern work environment: Inspiring offices in the heart of Berlin-Mitte and Hamburg’s Sternschanze district. Centrally located, well connected, and full of life.
- Flexibility: Hybrid work & flexible working hours: You decide how to make the most of your productivity.
- Sustainable mobility: We cover the cost of your Deutschlandticket, so you can get around comfortably and sustainably.
- Health & Wellbeing: Access to Wellpass and Urban Sports, with hundreds of fitness and wellness options across Germany.
- Team spirit: Several offsites each year at exciting locations across Europe, for inspiration, strategy, and genuine team cohesion.
- Learning & Development Culture: We support you through mentoring, professional development opportunities, and access to a strong network of founders and investors.
Benefits
Work-Life-Integration
Topics you will work on
Job locations
About your employer
encentive GmbH, based in Hamburg, is a modern startup developing an AI-driven platform for energy management in the industry. Its software solution flexOn enables industrial companies to optimize their electricity consumption through data-driven and automated control, aiming to reduce costs and CO₂ emissions. Founded in 2020, the company combines internal facility data with external factors such as weather conditions and market prices.
- Startup
- Onsite, Hybrid
- Power Sector, Economy
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