Senior UX with results you can measure.
Nearly two decades of work across telecom, digital identity, publishing, public sector and media — from national-scale platforms to citizen-facing services. Client names are kept confidential; the outcomes are real.
user accounts on a digital-identity platform
all-time-high web-touchpoint satisfaction
reduction in overdue payments after redesign
How a leading UK business school reframed SEO & accessibility governance
Using AccesSEO — a structured optimisation platform Matthaios helped shape — a prestigious institution moved from a traditional SEO-plugin setup to a governance model that unifies search performance, brand integrity and accessibility. Client kept confidential.
The problem
Traditional SEO plugins optimise content field-by-field — keyword density, character length, readability — with no view of how the institution is represented across search. Under Yoast, titles overflowed and were rewritten by Google, descriptions were duplicated or too generic, and marketing-style phrasing clashed with academic tone. Editorial teams manually overrode suggestions ~63% of the time, and alt-text quality went unchecked — creating both accessibility and reputational risk.
What changed
The first scan of 6,632 pages surfaced issues Yoast never flagged — title pixel overflow, description duplication, slug inconsistency, alt-text deficiencies and rigid templated metadata. AccesSEO categorised them, generated context-aware recommendations, and let editors bulk-approve or refine — shifting their role from writing metadata to validating it.
- Titles shortened to end Google rewrites; snippets made consistent across search & social
- Alt text contextualised and WCAG-aligned; decorative images correctly marked
- Institutional tone, brand positioning and accessibility enforced as one governance model
Before → after (6 months)
| Metric | Before | After |
|---|---|---|
| Avg organic CTR (programme pages) | 3.8% | 4.6% |
| Titles within optimal pixel width | 58% | 98% |
| Descriptions within optimal range | 61% | 98% |
| Brand-positioning consistency | 64% | 98% |
| Meaningful image alt text | 48% | 95% |
| Context-aware alt text | 22% | 97% |
organic click-through rate across the site
informative images meeting WCAG alt requirements
editorial metadata production time
Beyond the numbers, AccesSEO reframed optimisation from a tactical marketing task into an institutional capability — aligning search visibility with academic integrity, regulatory compliance and brand governance, and cutting per-page accessibility remediation effort by 60%.
A single, trusted identity across a national digital ecosystem
As Scrum Product Owner, Matthaios owned the product vision for a major telecom's unified authentication, authorization and profiling platform — the enabler that connected dozens of websites and apps behind one secure login.
Working with executive stakeholders and engineering, he translated complex technical constraints into clear business terms, managed the backlog and prioritized the roadmap for a geographically distributed team — while keeping the experience simple for millions of everyday users.
- Product vision, requirements and backlog ownership end-to-end
- Centralized user profile, customer identification and cross-app interoperability
- Standard UI/UX guidelines that unified the whole ecosystem
user accounts & daily logins served by the platform
One login. An entire ecosystem.
Merging two brands into one coherent digital experience
Matthaios directed cross-functional teams through a group-wide brand merge across every digital interface — delivered on time and on budget, and recognized as a case study within the Deutsche Telekom group.
By grounding the redesign in user research and consistent UX guidelines, the program didn't just unify visual identity — it measurably improved how customers rated the group's digital touchpoints.
- Group-wide brand merge across all digital interfaces
- Research-led redesign of structure, functionality and design
- Adopted as a Deutsche Telekom group case study
web-touchpoint satisfaction — an all-time high for the group
A DT group reference case.
Turning billing friction into completed payments
Across a portfolio of self-service projects, Matthaios redesigned online invoice payment, electronic bill presentation and IVR self-care — cutting cost to serve while lifting satisfaction.
Each project paired usability improvements with clear measurement, so the business could see the impact: happier customers, lower call-center load and healthier cash flow.
online payment satisfaction
fewer overdue payments
e-billing satisfaction
What made the difference
- Simplified payment and bill-presentation flows
- IVR self-care that increased self-service adoption and cut call-center cost
- Measurement built into every release
Building a UX practice — and serving demanding institutions
As Head of UX & Design, Matthaios built a company's UX operation from the ground up: recruiting talent, introducing methodologies, and raising UX maturity across a remote-first, engineering-led organization.
Under that practice, the team optimized digital experiences for major European institutions and leading academic organizations — including the University of Cambridge Judge Business School, Cambridge University Press and the European Environment Agency.
- Founded and led a remote UX/UI team from zero
- Introduced research, design-system and evaluation processes
- Delivered for institutions where clarity, trust and accessibility are paramount
Organizations served
Sectors
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