A seasoned interaction designer exploring the critical relationship between behaviour, design & information.
I design digital products that feel natural and fun to use - and help design teams stay happy, focused, and effective. Currently leading design and research at Significa.
Based in Athens, Greece.
mrjonaslehec@gmail.com
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+30 6957 505 332
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jonaslehec.com
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Experience
For 15+ years I've designed and scaled digital products & services. I'm a hands-on design leader with experience in both consumer and B2B. My focus is on building products and services where strategy, usability, and aesthetics align.
Head of user experience
- Led AI transformation across creative operations, pioneering implementation of Claude Projects, Google Labs Flow, Weavy, ElevenLabs, and Figma-to-code workflows that fundamentally reshaped team productivity and output quality.
- Led UX/UI department strategy, managed client relationships at executive level, and oversaw cross-functional teams delivering conversion rate optimisation, accessibility compliance, and design system governance
- Facilitated discovery workshops and co-creation sessions for complex business analysis and strategic alignment with C-level stakeholders
- Directed creative strategy and delivery for flagship accounts including Public Power Corporation, Aegean Airlines, and major financial services clients across digital ecosystems.
- Led executive-level presentations, transforming research and analytics into persuasive narratives that shaped boardroom decisions and secured strategic buy-in
- Orchestrated full design culture transformation: formalised roles, instituted workflows, fostered cross-departmental collaboration
- Managed international projects including digital migration of Saudi bank's customer base following merger, balancing business constraints with user experience excellence
Creative consultant — Freelance
Dec 2004 – Present
Greece & Paris, France
- Provide creative direction and strategic consulting for clients requiring visual communication strategy paired with strong aesthetic guidance and production oversight.
- Direct integrated brand experiences across digital and physical touchpoints
- Manage budgets, timelines, and contractor partnerships for complex creative deliverables through production planning, team building, and market research
Senior designer
Mozaik
Oct 2012 – Apr 2019
Athens, Greece
- Served as a mast to the traditional creative team to define the creative vision, mentor, inspire and advocate junior/intermediate staff on innovation, interaction, experience design, and best practices from concept through delivery. Worked with senior management across 3 offices to grow new business and client acquisitions.
- Shaped a disruptive hospitality booking engine called Bookwize and its client-centric counterpart, Hotelwize.
- Led the concept of Yeller, a fake-news debunk app. Built Athens' International airport digital ecosystem ranging from the app to web & B2B portals to physical touchscreen info points.
- Led creative direction for Athens International Airport digital ecosystem (mobile app, web portals, B2B platforms, physical touchscreen installations)
Production designer
Diplomates
Mar 2010 – Sep 2012
Paris, France
- Defined and managed visual creative direction for bespoke installations and site-specific experiences, specialising in high-profile fashion presentations and runway productions.
- Collaborated with Creative Director to establish aesthetic vision and immersive brand experiences
- Coordinated with producers to calculate budgets, schedule resources, and select contractor partnerships
- Led pre-production teams, prioritising work schedules and monitoring budget allocation
- Directed productions for Dover Street Market, Van Cleef & Arpels, Adam Kimmel, Bernard Willhelm, Cacharel, Band of Outsiders, Damir Doma, and Julien David
Founder & design lead
- Managed team of 8 delivering identity systems combining UI design, motion graphics, and 3D animation for media, advertising, and institutional clients.
Skills
Leadership
- Leading/Directing
- Pitch Work
- Team cluture
- Orchestration
- Conflict resolution
Soft skills
- Leading/Directing
- Pitch Work
- Team cluture
- Orchestration
- Conflict resolution
Disciplines
- Information architecture
- Design & user research
- Experience design
- Product design
- Art direction
- Product management
- Interaction design
- User testing
- Workshop facilitation
Tools
- Figma, Weavy, Spline, LLMs, Adobe
- Pen & paper
- Whiteboard
- Ideation
- Co-creation
- Interviewing
Education
École de Communication Visuelle
Master of Arts — MA, 2000–2002
Visual communication
LISAA - L'Institut Supérieur des Arts Appliqués
Bachelor of Arts — BA, 1998–2002
Branding, Typography
Awards & recognition:
3× CSS Design Awards
2× Lovie Awards
2× Sitecore Site of the Year
1× European Design Award
1× IAB Mixx Award