Midweight Service Designer Public Sector

As a Midweight Service Designer at Tangity, you'll play a key role in designing and delivering human-centred public services within agile, cross-functional teams. With 3-5 years of experience in service design, you'll bring expertise in translating complex policy and organisational challenges into clear, user-centred service experiences. 

You'll lead service design activities from framing challenges and conducting user research to mapping end-to-end journeys and developing holistic service models that meet both user needs and government objectives. 

Applicants must be clearable, have proven experience with GDS (Government Digital Service) standards and be able to demonstrate their work through a portfolio, case study or work samples. 

• Scope, plan, and collaborate in service design activities across all phases of design and delivery 
• Conduct mixed-method user research (interviews, contextual inquiries, usability testing, surveys, etc.) to uncover user needs and pain points 
• Map and visualise services across layers (e.g. service blueprints, customer journeys, ecosystem maps, process diagrams) to reveal opportunities and drive alignment 
• Synthesise research insights and identify patterns using frameworks such as Jobs to Be Done, service safaris, personas, and value proposition canvases 
• Facilitate co-creation sessions, ideation workshops, and playback sessions with stakeholders and users 
• Prototype service components and touchpoints (e.g. scripts, flows, mock service experiences) to test desirability and feasibility 
• Translate insights into actionable service improvements, opportunity areas, and design recommendations 
• Communicate complex service concepts and journeys through compelling storytelling and artefacts 
• Embed accessibility and inclusive design principles throughout the service lifecycle 
• Contribute to the ongoing development of Tangity's service design practice, methods, and tools 

Must Have: 

• 3-5 years of relevant experience in Service Design or a related discipline 
• Strong portfolio demonstrating end-to-end service design capability across sectors or domains 
• Knowledge of accessibility standards (e.g., WCAG) and proven experience with GDS (Government Digital Service) standards  
• Confident in applying human-centred design principles and inclusive design practices 
• Experienced in mapping services, synthesising insights, and facilitating collaborative workshops 
• Proficient in communicating design concepts visually and verbally to stakeholders 
• Familiar with agile environments and working in multidisciplinary product teams 
• Strong written and verbal English communication skills 

Nice to have:

• Degree in Service Design, UX, HCI, or a related discipline 
• Experience working in complex, regulated sectors such as banking or insurance 
• Interest in systems thinking or organisational design, applying service design to drive broader transformation 

About NTT DATA and Tangity
NTT DATA is a trusted global innovator with over 100,000 professionals in 50+ countries. Headquartered in Tokyo, we bring elements of our Japanese heritage—precision, long-term thinking, and social responsibility—into our UK work. In the UK, we work across telecoms, financial services, manufacturing, and the public sector, delivering end-to-end services from strategy to implementation.

Tangity – Part of NTT DATA, is a global design studio dedicated to humanising complexity. We combine Strategy, Technology, and Design to create meaningful, inclusive, and impactful services that improve lives and systems. Our studios work closely with delivery teams to embed design deeply into every project and across every touchpoint.

We're a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects.

Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation. We are also proud to share that we have a range of Inclusion Networks such as: the Women's Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network and the Parent Network.

For more information on Diversity, Equity and Inclusion please click here: Creating Inclusion Together at NTT DATA UK | NTT DATA

We offer a range of tailored benefits that support your physical, emotional, and financial wellbeing. Our Learning and Development team ensure that there are continuous growth and development opportunities for our people. We also offer the opportunity to have flexible work options.

You can find more information about NTT DATA UK & Ireland here: 

We are an equal opportunities employer. We believe in the fair treatment of all our employees and commit to promoting equity and diversity in our employment practices. We are also a proud Disability Confident Committed Employer - we are committed to creating a diverse and inclusive workforce. We actively collaborate with individuals who have disabilities and long-term health conditions which have an effect on their ability to do normal daily activities, ensuring that barriers are eliminated when it comes to employment opportunities. In line with our commitment, we guarantee an interview to applicants who declare to us, during the application process, that they have a disability and meet the minimum requirements for the role. If you require any reasonable adjustments during the recruitment process, please let us know. Join us in building a truly diverse and empowered team.

Back to search Email to a friend