UX Focused Product Designer | Complex Systems | Developer Tools | Data-Intensive Products

techstack Recruitment; Greater London; Hybrid; GBP 126,000 - 154,000; Full time

Benefits offered by this job

Competitive salary

Strong benefits

Flexible hybrid working model

Job summary

A leading recruitment firm is seeking a skilled UX-focused Product Designer to take ownership of user experience in complex, data-heavy systems. This role demands solid design experience for power users, strong interaction design skills, and collaboration with engineers. You will shape interaction models and produce practical artifacts in a collaborative, low-ceremony environment. The position offers competitive salary, good benefits, and a flexible hybrid model, enabling significant impact across notable products.

Qualifications

• Solid experience as a Product Designer or UX Designer on complex software products.
• Proven ability to design for power users and data-heavy workflows.
• Strong grounding in interaction design and usability principles.

Responsibilities

• Owning UX design for complex, data-intensive product areas.
• Understanding real user workflows and mental models.
• Designing interaction models, workflows, and behaviors.

Skills

UX design for complex systems

Interaction design

User research

Understanding of production environments

Technical collaboration

Tools

Git

React

Job description

UX Focused Product Designer | Complex Systems | Developer Tools

London - £140,000 with benefits

A highly respected, product-led software company is hiring a UX-focused Product Designer to take ownership of user experience across complex, data-heavy product areas.

This is not a brand, marketing, or visual-polish role.

You’ll be designing for power users, elite SW Engineers and technical teams who work daily inside dense, mission-critical interfaces. These products sit at the heart of real production systems, where clarity, efficiency, and correctness matter more than surface-level aesthetics.

If you enjoy hard problems, systems thinking, and working shoulder-to-shoulder with SW Engineers, this role will suit you.

Who this role is for

This role will resonate if you see yourself as a:

• Product Designer (Complex Systems / B2B)
• UX Designer for developer tools or technical platforms
• Interaction Designer working on dense, state-heavy interfaces
• Design Technologist or UX Engineer (design-leaning)
• Systems-minded Designer who enjoys complexity rather than hiding it

If your background is primarily brand, marketing websites, or purely visual design, this is unlikely to be a good fit.

What you’ll be doing

• Owning UX design for complex, data-intensive product areas
• Understanding real user workflows, mental models, and constraints in production environments
• Designing interaction models, workflows, and behaviours — not just screens
• Producing practical design artefacts: wireframes, interaction specs, prototypes, and documentation
• Working closely with engineers to ensure designs are feasible, performant, and implemented correctly
• Iterating designs based on user research, usability testing, and real usage data
• Helping define and evolve UX standards and design language across the product
• Occasionally contributing small frontend changes (React-based) to close the loop between design and delivery
• Supporting user research to uncover genuine customer pain points and opportunities

What you’ll need

• Solid experience as a Product Designer, UX Designer, or Interaction Designer on complex software products
• Proven ability to design for power users and data-heavy workflows
• Strong grounding in interaction design, usability principles, and information architecture
• Experience planning and running user research and usability testing
• Technical fluency, including:
• Ability to inspect DOM, layout, and interaction behaviour
• Comfortable collaborating with engineers and reading frontend code
• Working comfortably with Git
• Strong judgement, knowing when to simplify, when to expose power, and when not to hide complexity

What’s in it for you

• Shape interaction models used inside thousands of real production systems
• High autonomy and ownership over meaningful product areas
• Close collaboration with experienced engineers who care about quality
• Minimal process, low ceremony, and no design theatre
• A product where UX decisions have long-term impact at serious scale
• Competitive salary, strong benefits, and a flexible hybrid working model

How to apply

Please send your CV and portfolio, or include clear links to your online portfolio within your CV.