Interaction Designer - Remote - Inside IR35

About Us

Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.

We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical expertise with people-centred design, we create solutions that deliver meaningful, lasting impact.

Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors.

Past and present clients include the Ministry of Justice, Department for Education, Ministry of Housing, Communities and Local Government, UEFA, International Olympic Committee, and Mercedes-Benz. Our services span the full digital delivery life cycle, including architecture, engineering, delivery management, user-centred design, business analysis, data, DevOps, and AI.

About You

You are a motivated and adaptable professional with a strong analytical mindset and a passion for using technology to solve real-world problems. You enjoy working in collaborative, agile teams and take pride in delivering high-quality solutions that make a tangible impact. With strong communication skills and a consultative approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes.

Role Overview

We are seeking a creative, structured, and logical Interaction Designer to join our multidisciplinary team designing and delivering innovative, user-centred digital public services.

You will be a great listener and communicator who takes a pragmatic approach to balancing business objectives with user needs. As a collaborative team player keen to develop your 'T-shaped' skills, you will design simple, intuitive, and accessible digital services that transform public and private sector experiences taking assignments across all stages of the delivery life cycle from strategy to implementation.

Key Responsibilities

Interaction Design & Service Delivery

• User-Centred Interactions: Design simple, intuitive, and accessible digital services that meet user needs and business objectives across online and offline channels.

• Rapid Prototyping: Build, test, and iterate designs rapidly using a range of methods-from paper sketches and wireframes to digital tools and code-based prototypes using the GOV.UK Prototype Kit.

• Design Artefacts: Produce clear design deliverables, including user flows, scenarios, wireframes, journey maps, and interaction prototypes.

• Design Systems & Standards: Utilize and contribute to design systems and design patterns, maintaining consistency across services while ensuring alignment with WCAG and GOV.UK guidelines.

• Service Transformation: Take an end-to-end view of services to improve the efficiency, speed, and overall usability of public sector platforms.

• Agile Collaboration: Work closely in multidisciplinary agile teams alongside developers, researchers, product managers, and stakeholders to deliver effective solutions.

Research, Testing & Facilitation

• Evidence-Based Design: Participate in user research activities, synthesizing qualitative and quantitative evidence to inform design decisions and continuous service improvements.

• Co-Design & Facilitation: Facilitate workshops, co-design sessions, and user testing to explore complex problems, generate ideas, and validate concepts.

• Stakeholder Engagement: Capture and communicate design decisions clearly and confidently, building a strong evidence base to influence stakeholders and colleagues.

Essential Experience & Skills

• GOV.UK Prototype Kit & Systems: Proven hands-on experience and knowledge of using the GOV.UK Prototype Kit, standard design systems, and design patterns.

• Government Service Standard: Practical experience working to the Government Service Standard, ideally with service assessment experience across all project phases.

• Accessibility & Inclusivity: Proven experience designing for usability, accessibility, and inclusivity in line with WCAG standards and GOV.UK design guidelines.

• Multi-Format Prototyping: Demonstrated ability to rapidly prototype using paper, digital tools, and code-based environments.

• Technical Literacy: Strong technical literacy with the ability to understand high-level technical processes, constraints, and engineering concepts.

• Pragmatic Delivery: Ability to recognize and work effectively within project constraints, ensuring value is delivered consistently to clients and users.

• Communication & Facilitation: Excellent verbal, written, and facilitation skills, with confidence engaging stakeholders at all levels.

• Flexibility & Mobility: Openness to working across different sectors and client locations, including hybrid working with travel to our London office and client sites as needed.

• Service Assessment Leadership: Direct experience leading the interaction design narrative through formal GDS/departmental Service Assessments across Discovery, Alpha, Beta, or Live phases.