Senior Product Design Contractor - B2B SaaS

rmg digital; Greater London; Hybrid; GBP 92,000 - 148,000; Full time

Job summary

rmg digital is seeking a Senior Product Designer for a B2B SaaS environment, focusing on UX with a solid UI foundation. The role involves tackling complex products, collaborating with Product, Engineering, and senior stakeholders, and leveraging AI where applicable.

The ideal candidate has strong UX skills, a robust portfolio, and experience with design systems and Figma. This is a hybrid London or UK-wide remote role, with UK-based candidates preferred.

Qualifications

• Senior Product Designer with strong B2B SaaS experience.
• Excellent UX skills including user journeys, IA and prototyping.
• Solid UI and visual design foundation.
• Strong Figma and design systems experience.
• Experience partnering with Product Managers and Engineers.
• Comfort communicating with and influencing senior stakeholders.
• Portfolio showing UX thinking and impact beyond UI.
• AI experience is a plus, from projects or personal work.

Responsibilities

• Translate user and business needs into simple, intuitive experiences.
• Lead UX and UI design across complex product workflows.
• Collaborate closely with Product, Engineering and senior stakeholders.
• Adapt quickly to new commercial environments and deliver value fast.

Skills

UX design

UI design

Figma

Design systems

Stakeholder management

Product collaboration

AI experience

Tools

Figma

Job description

Working model: Hybrid or Remote (work must be completed within the UK)

Start Date & Duration: September 2026 for 3+ months (potential to extend)

Rate: Dependent on experience (outside IR35)

We’re looking for an experienced Senior Product Designer to join a B2B SaaS environment, with a strong focus on UX and a solid foundation in UI design. You’ll be comfortable tackling complex products and workflows, turning user and business needs into simple, intuitive experiences and working closely with Product, Engineering and senior stakeholders.

What we’re looking for

• Strong Senior Product Design experience within B2B SaaS.
• Excellent UX skills, including user journeys, interaction design, information architecture and prototyping.
• A solid foundation in UI and visual design.
• Strong Figma and design systems experience.
• Experience working closely with Product Managers and Engineers.
• Confidence communicating with and influencing senior stakeholders.
• A portfolio demonstrating your UX thinking, problem-solving and impact, not just finished UI.
• Experience with AI would be highly beneficial — whether gained professionally or through your own projects, experimentation or AI-powered product concepts.
• Private sector contracting experience.

Extensive private sector contracting experience is particularly important for this role.

We’re looking for someone accustomed to joining new commercial environments, quickly understanding complex products and delivering value at pace. You’ll be adaptable, autonomous and commercially minded, with the confidence to work effectively with new teams and stakeholders.

Location

The role can be hybrid in London or fully remote within the UK. Candidates must be UK-based.

If you’re a Senior Product Designer with strong B2B SaaS, UX and private sector contracting experience, we’d love to see your CV and portfolio.