Senior Product Designer

At Cirql One, we are building the foundational layer that connects enterprise data to AI: a layer that doesn’t just relay information, but genuinely understands it, making business meaning explicit, trusted, and actionable at scale.

The problem we’re solving is deceptively hard. SAP runs the core operations of more than 90% of Fortune 500 companies. The data is reliable. The meaning, however, is buried inside 30 years of configurations, customizations, and undocumented logic that no AI system can interpret on its own. We’ve spent decades inside these environments. We know the problem intimately, and we’ve built our company around a single conviction: before AI can truly scale inside the enterprise, business meaning must be made explicit.

Cirql One is that missing link: an enterprise semantic intelligence layer that gives AI models and agents a shared, business-accurate understanding of enterprise data. Our vision is to become the system of reason sitting above SAP, where intelligence, metrics, and AI automation are defined, governed, and executed.

For a talented, driven, and collaborative designer, working at Cirql One is an opportunity to define how enterprise intelligence becomes legible, shaping the interfaces through which humans and AI navigate business meaning together, from the ground floor, with a team that takes both craft and mission seriously. That is our promise.

Tasks

• Own the UI layer. Define how semantic models, metrics, governance rules, and data lineage are represented, versioned, and navigated in the platform.
• Translate complexity. Turn ambiguous requirements into scalable interaction patterns that work for data engineers and business stakeholders alike.
• Ship end-to-end. Work directly with engineering and product from early concept to shipped product. No handoffs.
• Design for AI. Build interfaces where humans and AI think together: natural language exploration, structured reasoning, governed outputs.
• Research and synthesise. Conduct user research and usability testing with enterprise customers; translate findings into design decisions with clear rationale.
• Defend your decisions. Articulate design rationale confidently across technical and non-technical contexts: founders, engineers, and customers.

Requirements

• Enterprise design depth. 7+ years of product design experience, including 4+ years on complex B2B software: data platforms, developer tools, or analytics applications.
• Systems thinker. Able to design coherent patterns at scale, hold a large design vision, and break it into shippable pieces without losing the thread.
• Strong portfolio. End-to-end process from research and problem framing to interaction design and high-fidelity execution, on genuinely hard problems.
• AI-first by default. Fluent in Claude Code and agentic design workflows; experienced building interfaces where humans and AI collaborate on complex tasks.
• Collaborative partner. Direct track record of working with engineering through the build cycle, not as a handoff, and making the people around you better.
• Clear communicator. Articulates design rationale precisely to engineers and non-technical stakeholders; invites feedback and adapts without losing direction.

Strong plus:

• Background in data visualisation, dashboard design, or developer-facing tools.
• Experience designing natural language or AI-assisted interfaces.

Benefits

• Competitive compensation. Fair and attractive pay that reflects the seniority and impact of the role.
• A growing team. We are scaling deliberately, bringing in people who raise the bar. Your scope grows as the company does.
• People who care. Everyone on the team is deeply invested in the problem and committed to doing the work well.
• Full transparency. No filtered updates. Everyone knows what’s being built, how the business is doing, and where we’re going.

If you want to shape how enterprise intelligence becomes legible, and do it at the ground floor with a team that takes craft seriously, we’d like to hear from you.

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Position Details

• Job Title: Senior Product Designer
• Company / Organisation: Cirql One GmbH
• Location: Heidelberg
• Employment Type: Full-time
• Field / Industry: Design & Creative
• Work Arrangement: On-site or hybrid — Heidelberg

About This Opportunity

This full-time opportunity at Cirql One GmbH is an excellent opening for experienced professionals in the field of design and user experience. The role is structured around an on-site or hybrid environment based in Heidelberg and is designed for candidates who are ready to make a meaningful contribution from the moment they join.

Based in Heidelberg, this role offers the opportunity to collaborate closely with a local team in a structured professional environment. Candidates currently based in the area or open to relocation are strongly encouraged to apply.

Whether you are an established practitioner in design and user experience or a highly skilled professional looking for your next challenge, this Senior Product Designer role offers the platform to apply your expertise in a real-world, results-oriented environment. Cirql One GmbH is looking for a candidate who can hit the ground running and add genuine value to the team.

Who Should Apply

This role is ideal for candidates who have a solid background in design and user experience and a demonstrable track record of delivering high-quality results. You should possess a strong visual sensibility, creativity, and the ability to translate complex ideas into clear, intuitive designs. Experience working with industry-standard design tools, prototyping software, and collaborative design platforms will be an advantage, though a commitment to continuous learning and professional development is equally valued.

Beyond technical or domain expertise, Cirql One GmbH is looking for someone who communicates clearly, collaborates effectively with colleagues and stakeholders, and takes ownership of their work from start to finish. If you thrive in a professional environment and are passionate about the opportunity to create compelling and user-centred design experiences that delight customers, we encourage you to apply.

Key Competencies for This Role

Successful candidates for the Senior Product Designer position at Cirql One GmbH will typically demonstrate the following core competencies:

• Domain expertise — a strong foundation of knowledge and hands-on experience in design and user experience
• Problem-solving ability — the capacity to identify challenges, think critically, and implement practical solutions efficiently
• Communication skills — clear and professional communication with colleagues, stakeholders, and partners at all levels
• Self-management — strong time management and the ability to prioritise a varied workload while meeting deadlines
• Team collaboration — a collaborative and supportive approach to working alongside colleagues across departments or locations
• Adaptability — the ability to respond positively to change and thrive in a dynamic, evolving work environment

How to Apply

To apply for this Senior Product Designer position at Cirql One GmbH, click the "Apply Now" button on this page. You will be taken directly to the official application page where you can complete and submit your application.

Before applying, please ensure that your CV or résumé is fully up to date and clearly highlights your experience and accomplishments in design and user experience. If a cover letter is included or requested, tailor it specifically to this role and explain how your background, skills, and goals align with what Cirql One GmbH is looking for in a Senior Product Designer.

All applications for this role are processed directly by Cirql One GmbH. Career Nest facilitates the job discovery process and does not pre-screen or forward applications on behalf of employers. There are no fees for job seekers at any stage of the application process.

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