> Markdown version of [/jobs/ext/4038508-senior-interaction-designer](https://www.wearedevelopers.com/jobs/ext/4038508-senior-interaction-designer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Interaction Designer

- **Company:** Government Commercial Agency
- **Location:** Norwich, UK (Remote available)
- **Experience:** Expert
- **Salary:** £59,877.0 - £69,457.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Statistical Hypothesis Testing, Interaction Design, Rapid Prototyping Process, Service Design, Web Content Accessibility Guidelines, Website Wireframe, Working Model 2D, Backend, Figma
- **Published:** October 9, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=aa1a484118cfa1e8

## About the Role

Proven End-to-End Interaction Design Experience: Extensive track record of designing complex, intuitive user journeys and interfaces within an Agile delivery environment.

Prototyping: Demonstrated capability in creating low-to-high fidelity interactive prototypes (using Figma, HTML/CSS, or design toolkits) to test hypotheses and validate user flows.

Expertise in Accessibility & Inclusion (WCAG 2.2): Deep knowledge and practical application of inclusive design principles and WCAG 2.2 standards to ensure products work for all users, including those using assistive tech.

Evidence-Based & Collaborative: Track record of using user research, data, and usability testing to defend design decisions and iteratively improve digital services alongside cross-functional teams.

Influencing: Proven ability to impact direction of projects, outcomes of the team and build consensus among diverse stakeholders and delivery squads., * Delivering at pace

 * Communicating and influencing
 * Making effective decisions, * Designing for everyone (lead success profile, a task will be sent ahead of the interview to be presented to the panel during the interview)
 * Design communication
 * Evidence-based design

## Description

This role will join a growing UCD team that currently contains 5 permanent team members, and a host of wonderful contractor colleagues. It will report directly to the Head of UCD, and will take over line management of any contractors assigned to the same programme of work., * Lead End-to-End Journey Design: Map complex user flows, wireframes, and digital interaction touchpoints to ensure services are simple, intuitive, and seamless for all users.

 * Rapid Prototyping & Iteration: Create low-to-high fidelity interactive prototypes (in Figma, HTML/CSS, or design kits) to test design hypotheses and refine interaction models rapidly.
 * Drive Accessibility & Inclusive Design: Guarantee all digital touchpoints strictly comply with WCAG 2.2 AA standards, ensuring equal access for citizens with varying digital skills or assistive technology needs.
 * Apply and Extend Design Systems: Champion established standards (such as the GOV.UK Design System) while developing new reusable UI patterns.
 * Evidence-Based Design Decisions: Collaborate closely with User Researchers, Content Designers, and Performance Analysts to iterate interfaces based on real user data.
 * Balance Policy, Legal & Tech Constraints: Work alongside software engineers, policy leads, and product managers to translate complex regulatory or backend constraints into elegant human-centred solutions.
 * Lead Co-Design & Strategic Workshops: Facilitate design critiques, co-design sessions, and cross-functional alignment workshops to build consensus among diverse stakeholders and delivery squads.
 * Shape Service Strategy Across Project Phases: Provide design leadership across Discovery, Alpha, Beta, and Live phases, ensuring the team builds the right thing before committing resources to scaling.
 * Line Management & Mentoring: Lead and guide contract team members, manage performance to ensure a high-performing team, and support staff development through regular feedback., GCA operates a smarter working model that balances flexibility with collaboration. Successful candidates are expected to spend at least 26 days per quarter (approximately 2 days per week, pro-rata) at their contracted office, another GCA site, or off-site for meetings. For the remainder of the time, you may work from home or another suitable location that meets business needs.