Senior Product Designer . Wellio

Hard Problems; Greater London; Hybrid; GBP 78,000 - 94,000; Full time

Job summary

Wellio is hiring a Senior Product Designer to lead end-to-end design within a squad, combining research, interface design and front-end work. You will own the design system and collaborate closely with PMs, engineers and content teams to deliver outcomes across the Wellbeing Management System for schools.

In this role, you will ship features, work directly in the codebase with AI tooling, and use research methods to inform design decisions.

Qualifications

• 4+ years of product design experience with a track record of shipping successful B2B SaaS products.
• Strong visual and interaction design skills, can create well-crafted and highly functional interfaces.
• Experience in user research and testing, turning insights into better design decisions.
• Excellent writing skills, with words as part of the design.

Responsibilities

• Take features from shaping to shipped, owning the design process end to end with your squad's PM and engineers.
• Design complete experiences, from rough sketches to pixel-perfect interfaces.
• Build your designs in the codebase using AI tools and ship front-end changes without a handoff.
• Contribute patterns to a design system that scales across the platform.
• Observe teachers and students using the product, run user interviews, and prototype with users.

Skills

Full-stack design

AI tools experience

User research

Excellent writing

Tools

AI coding tools

Job description

# Senior Product DesignerWellio, London, UKEducation## Why this work mattersWellio helps schools deliver evidence-based wellbeing and mental health lessons to students, equipping young people with skills to proactively manage their mental health across 20+ countries.View the full listing and apply →Listed 20 Oct 2026Applications are handled by Wellio, not by Hard Problems.## About WellioWellio builds the world's first Wellbeing Management System for schools, helping them teach wellbeing consistently, identify students who may be struggling earlier, coordinate support, and continuously improve student outcomes. The platform powers wellbeing programs in 1,000 schools across 25 countries, supporting millions of students. The company has completed three consecutive years of 100% growth and is founder-led and profitable.### The roleWellio is hiring a Senior Product Designer to be the designer on one of its product squads. The company runs Shape Up, with six-week build cycles and small squads where a PM, designer, engineers and content people own one outcome together. Design at Wellio is a single role covering research, shaping, interface design and front-end build. Designers own the design system and, alongside Figma, work directly in the codebase. The role reports into a squad structure alongside a PM and engineers.### What you would do* Take features from shaping to shipped, owning the design process end to end with your squad's PM and engineers.* Design complete experiences, from rough sketches to pixel-perfect interfaces.* Build your designs in the codebase using AI tools and ship front-end changes without a handoff.* Check your code with AI review tools, then pair with engineers through code review and on technical constraints.* Contribute patterns to a design system that scales across the platform.* Give AI the context, components and constraints to produce output that looks and works like Wellio, and share what works with the rest of the team.* Observe teachers and students using the product in real classrooms, run user interviews, and put working prototypes in front of users before committing to building.* Use PostHog and session recordings to identify where users get stuck, and turn those insights into clear design principles and interface patterns.* Write clear interface copy and work with the content team to keep messaging consistent.* Shape pitches live with your PM and engineers, present work at the betting table, and create materials that help sales and customer success communicate the product's value.* Mentor others on design thinking and user-centred approaches.### What they are looking for* 4+ years of product design experience with a track record of shipping successful B2B SaaS products.* Full-stack design skills: you take designs from concept to production yourself and are comfortable working in a codebase using AI coding tools to build and ship front-end work.* An AI-native workflow: you already use AI tools day to day and understand where they help and where they fall short.* Strong visual and interaction design skills, with the ability to create interfaces that are both well-crafted and highly functional.* Experience in user research and testing, turning insights from real users into better design decisions.* Excellent writing skills, with an understanding that words are part of the design.* Systems thinking: you can design individual features while building and maintaining consistent design systems that scale.* A collaborative mindset, working well with engineering, product and content teams.* Strong problem-solving skills: you can identify user problems, break them down, and work toward clear solutions.### Working arrangementsThe role is listed as remote (any location), with bases in London, Amsterdam, Sydney and Melbourne. The team comes together for two in-person meetups per year.### Pay and benefits€92,000 – €111,000 per year.## DetailsLocation: London, UKOn-site or remote: RemoteSalary: €92,000 – €111,000Sector: EducationRole: Product designSeniority: SeniorOrganisation: For-profitThis job is listed on the Hard Problems job board, but details come from the employer’s own listing and may have changed — always check the original posting.