Product Designer- Cloud

Mendix; Rotterdam; Hybrid; EUR 60,000 - 75,000; Full time

Job summary

Mendix in Rotterdam is seeking a product designer with 2–5 years of experience to shape AI-enabled UX for cloud platform environments. You will frame problems with product teams, create concepts and functional prototypes using AI-assisted coding tools, and deliver detailed UI designs that follow our design-system patterns.

You will validate concepts through usability tests, collaborate with researchers, PMs and developers, and iterate based on feedback, keeping a clear written and spoken English

Qualifications

• Around 2–5 years of relevant product design experience and a design degree or equivalent practical experience.
• Strong UX, interaction, and UI design skills, with experience using design systems.
• Hands-on experience using AI in research and design workflows and building functional prototypes with AI-assisted coding tools.
• Experience validating concepts, testing usability, and collaborating with product managers and developers.
• Initiative, comfort with ambiguity, and willingness to challenge assumptions and learn from feedback.
• Clear written and spoken English, with the ability to articulate ideas and explain design decisions.

Responsibilities

• Work with product and technical teams to discover and frame problems, challenge assumptions, and explore opportunities.
• Create concepts and functional prototypes using AI-assisted coding tools to explore behaviours, test assumptions, and support product decisions.
• Conduct concept-validation sessions and usability tests with Research Ops support. Test user understanding, task success, and recovery when things go wrong, and use findings to improve designs.
• Deliver detailed UI and interaction designs, including how people guide, review and correct AI agents. Apply existing design-system patterns and contribute improvements where needed.
• Work closely with developers through implementation and conduct design QA to improve usability and experience quality.
• Communicate decisions clearly, share work in progress, and own defined problems with guidance while collaborating on more complex challenges.

Skills

UX design

UI design

Prototyping

Design systems

English communication

Education

Design degree or equivalent practical experience

Tools

Figma

AI-assisted coding tools

Job description

Company Overview

Siemens Digital Industries Software is a leading provider of solutions for digital innovation and transformation. Our portfolio includes product lifecycle management, electronic design automation, low-code application development, and enterprise software solutions that help companies accelerate innovation and create lasting value. At Mendix, we empower organizations to build, deploy, and govern modern applications using our low-code platform. With the resources of a large company and the innovation of a software leader, we create solutions that enable our customers to achieve more.

Position Overview

Join the Cloud Unit within Mendix R&D, helping customers deploy, operate, and govern applications and platform environments. We make complex cloud capabilities, administration, and integrations easier to use. You'll help shape a new agentic platform, working with product managers, technical leads, and developers to frame problems, validate ideas, and deliver well-crafted experiences, including interactions between people and AI agents. AI is central to what we build and how we work. We value strong UX and UI craft through clear thinking, communication, rapid prototyping, and attention to the implemented experience, not just polished design files.

Key Responsibilities

• Work with product and technical teams to discover and frame problems, challenge assumptions, and explore opportunities.
• Create concepts and functional prototypes using AI-assisted coding tools to explore behaviours, test assumptions, and support product decisions.
• Conduct concept-validation sessions and usability tests with Research Ops support. Test user understanding, task success, and recovery when things go wrong, and use findings to improve designs.
• Deliver detailed UI and interaction designs, including how people guide, review and correct AI agents. Apply existing design-system patterns and contribute improvements where needed.
• Work closely with developers through implementation and conduct design QA to improve usability and experience quality.
• Communicate decisions clearly, share work in progress, and own defined problems with guidance while collaborating on more complex challenges.

Qualifications

• Around 2–5 years of relevant product design experience and a design degree or equivalent practical experience.
• Strong UX, interaction, and UI design skills, with experience using design systems.
• Hands‑on experience using AI in research and design workflows and building functional prototypes with AI‑assisted coding tools.
• Experience validating concepts, testing usability, and collaborating with product managers and developers.
• Initiative, comfort with ambiguity, and willingness to challenge assumptions and learn from feedback.
• Clear written and spoken English, with the ability to articulate ideas and explain design decisions.

Preferred Skills

• Experience designing AI‑powered or human–agent experiences.
• Experience with B2B SaaS, enterprise software, cloud platforms, deployment, operations, or governance.

Why Us

We are Siemens:
At Siemens Software, flexibility is how we work–hybrid by default, built on trust and autonomy. Together, 30,000 people across more than 200 countries build technology that shapes the real world.
You'll grow through real projects, strong technical peers, and global mobility, backed by the scale and benefits of an industrial software leader. We're committed to equality and inclusion, and we hire based on merit, skills, and impact. Bring your curiosity and creativity and help us shape tomorrow!

Our Benefits & Rewards

The salary range for this position is €60,000- €75,000 and this role is eligible to earn incentive compensation. The actual compensation offered is based on the successful candidate's job-related skills, experience, and relevant education/training. Siemens offers health and wellness benefits to employees; you can access the benefits available in your country via the link: https://jobs.sw.siemens.com/benefits/

Diversity & Inclusion

We are committed to creating an inclusive workplace where everyone can bring their authentic self to work. We welcome applications from all backgrounds and experiences. We believe in building a diverse workforce that reflects the communities we serve. Siemens is an Equal Opportunity Employer and does not discriminate based on race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity, or any other protected characteristic. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

How We Work

You'll join a design team working across multiple product and development teams. We use Figma and AI-assisted tools, but specific tools are not a checklist. Functional prototyping is expected; production coding is not. Hybrid arrangements are agreed within the team.

Your Portfolio

Show how you think, collaborate, and learn, from problem framing to testing and delivery. Include work-in-progress artefacts, prototypes, and how findings changed your designs. Explain your contribution, trade‑offs, and outcomes where available. We value an honest view of your process over a polished sales presentation.

#LI-Hybrid #LI-SaaS

Siemens Software. Transform the Everyday.