Your mission
Join us at Rhesis AI – Open-source test generation and management for Gen AI applications that deliver value, not surprises!
At Rhesis AI, we empower organizations to develop and deploy Gen AI applications that meet high standards for reliability, robustness, and compliance. As the creators of an open-source solution for test generation & management, we enable AI teams to build context-specific tests, and collaborate directly with domain experts.
We're currently part of the K.I.E.Z. Accelerator at the Merantix AI Campus in Berlin, where we’re building the testing infrastructure Gen AI needs to earn trust at scale.
If you’re passionate about advancing trustworthy AI through practical tools and collaborative infrastructure, we invite you to join our mission.
Your profile
As a Frontend Engineer at Rhesis AI, you will play a critical role in shaping how users interact with our Gen AI testing and validation platform. You'll be responsible for building responsive, intuitive, and performant web applications that help customers evaluate and ensure the quality of their AI applications:
* Design and develop elegant, scalable, and highly responsive user interfaces using React and TypeScript.
* Collaborate closely with design, product, and backend engineering teams to deliver seamless and insightful user experiences for interacting with AI models and validation results.
* Build interactive visualizations and dashboards that make complex AI testing data accessible and actionable for users.
* Integrate frontend components with RESTful and GraphQL APIs, ensuring smooth data flow and real-time updates.
* Maintain a modern frontend architecture, ensuring consistency, accessibility, and performance across browsers and devices.
* Continuously improve UX, collecting feedback and iterating on features to ensure the platform remains intuitive and powerful.
* Stay up to date on modern frontend technologies, helping Rhesis AI stay at the forefront of design and usability.
You will thrive in this role if you have:
* Advanced experience with React, JavaScript/TypeScript and CSS/SCSS.
* A strong grasp of frontend architecture, design systems, and building modular, reusable UI components.
* Familiarity with integrating frontend apps into cloud environments (e.g., GCP, AWS) and with CI/CD workflows.
* Experience building and consuming RESTful or GraphQL APIs.
* An eye for detail in UI/UX, with experience working closely with designers or directly contributing to product design.
Bonus Skills
* Experience visualizing data or test results using libraries like D3.js, Recharts, or Plotly.
* Knowledge of AI/ML product interfaces and how to display model outputs, performance metrics, or validation results effectively.
* Familiarity with full stack development (e.g., Node.js, Python) is a plus, especially for debugging and cross-functional collaboration.
* Interest or experience in building tools for developers, testers, or data scientists.
Why us?
We’re excited to offer a fixed one-year contract (with very likely extension), starting 15 July or 1 August, along with a range of benefits to support our team members, including:
1. Work at the forefront of Gen AI: Collaborate with some of the most innovative companies building LLM applications. Contribute to the trustworthiness of AI by shaping open-source tools that define how Gen AI is tested and validated.
2. Flexible work arrangements: We understand the importance of work-life balance and offer flexible working options to accommodate personal needs and preferences. We have offices in Berlin and Potsdam (Griebnitzsee).
3. Compensation: We offer salaries and benefits tailored to your experience and qualifications, along with the opportunity to gain ownership in the company.
4. A supportive and collaborative work environment: We foster a culture of teamwork, collaboration, and mutual respect, where every team member is valued and supported in their professional and personal growth.
About us
At Rhesis AI, we’re driven by the goal of making AI evaluation and testing seamless, thorough, and accessible. We’re not just another tech company – we’re building solutions to ensure that Gen AI applications are reliable, resilient, and ready to meet the demands of real-world use. Our focus is on providing a comprehensive, automated testing platform that validates AI applications across diverse scenarios and industries, helping businesses confidently deploy Gen AI.