Passionate about creating user-centered products that deliver business value while enhancing people's interactions with technology. Proven ability to lead cross-functional teams, advocate for design thinking, and implement iterative design processes based on user feedback and testing.
Product Designer
I transform complexity into clarity. With 20 years of design mastery and a delectable decade crafting product experiences, I create digital solutions that don't just look beautiful, they change how people interact with technology.
HumanisingTech with Empathy, Experimentation, & a Sustainable Future.
My superpower? Taking million-data-point challenges and turning them into intuitive interfaces that your grandmother could navigate. From assisted living platforms processing real-time health data to enterprise expense systems that actually make sense, I bridge the gap between what technology can do and what humans need it to do.
I don't just design products. I architect experiences.
Every pixel serves a purpose. Every interaction tells a story. Every solution starts with deep empathy for the humans who will live with what I create. Whether it's helping elderly users maintain independence through smart technology or enabling businesses to streamline complex workflows, I believe great design should feel invisible—effortlessly guiding users toward their goals.
When I'm not simplifying the seemingly impossible, I'm mentoring the next generation of designers, establishing scalable design systems, and advocating for accessibility as a fundamental right, not an afterthought.
Ready to turn your complex challenge into someone's favorite digital experience?
Let's create something that matters.
My approach to turning complex problems into simple, impactful solutions, rooted in design thinking, double diamond, and design sprint methodologies.
Real problems start with real people. I listen deeply, design with heart, and make decisions rooted in empathy.
Ambiguity doesn’t scare me, it excites me. I treat change as fuel for creativity, not friction.
Failure isn't a flaw, it’s feedback. I iterate with intent, using each misstep to sharpen what comes next.
I untangle complexity to find the signal. My goal, make things feel simple, without dumbing them down.
I design in the open. Working closely with PMs, engineers, and stakeholders, I believe shared ownership builds stronger products.
I balance intuition with structure. Creativity lights the spark; systems scale the fire.
I design for people and performance. Every decision ties back to both user needs and business goals.
Curiosity shapes my craft. I draw from psychology, tech, and art to design with deeper perspective.
Where Philosophy Meets Practice
I believe that the measure of great design isn't how impressive it looks in a portfolio—it's how invisible it feels to the person using it. When someone navigates a complex healthcare system without confusion, or processes expense reports without frustration, that's when design has truly succeeded.
AI didn't change what great design is. It raised the stakes for who delivers it.
I work with AI, and I design for it – and I know the difference.
As a practitioner, I use AI across my entire workflow. From synthesising user research and generating rapid prototypes to automating design token pipelines from Figma to production-ready SCSS — AI is embedded in how I think, move, and deliver.
As a designer of AI-powered products, I bring something tools alone can't: the human judgement to know when AI should be invisible, when it should explain itself, and when it should get out of the way entirely. I design for trust, transparency, and graceful failure — because users don't forgive products that feel unpredictable.
The designers who will shape the next decade aren't the ones who fear AI. They're the ones who know how to humanise it.
I'm one of them.
Design philosophy means nothing without execution. Here's the proof - 23 years of research, leadership, and delivered results.
Usability Testing Hours
User Research Sessions Conducted
Cross-Functional Teams Led
Products/Features Shipped
Years of Experience
Feels the most authentic and humble while still being professional. It positions the recommendations as coming from meaningful working relationships rather than just endorsements.
Sameera is a very talented developer with an excellent mix of tecnical and business acumen. His client service abilities and can-do attitude made him an invaluable addition to the Aeturnum team.
I wish him all the best for the future.
Sameera Thilakasiri worked under me at Mitra and was a pleasure to work with. He has solid UI/UX skills and always brought a user-centered approach to his work. A friendly and positive team player, Sameera was well-liked and consistently dependable.
I worked with Sameera on the build and delivery of a very complicated, major web project. Sameera was great to work with - both on a professional and personal level. He was very adept at both coding, organising, and dealing with a constantly changing set of requirements. He was seemingly unflappable, and could cope with anything thrown at him. I'm very grateful for the hard work he put in.
I had the privilege of working closely with Sameera during his tenure at Mitra Innovation. His contributions were invaluable to our team. Sameera’s expertise in usability analysis and user experience (UX) design significantly enhanced our projects.
As an HFI Usability Analyst, Sameera consistently demonstrated a deep understanding of user needs. He conducted thorough research, identified pain points, and proposed effective solutions. His ability to bridge the gap between technical requirements and user expectations was remarkable.
During our collaboration, Sameera played a pivotal role in optimizing the user interfaces of several critical applications. His attention to detail, creativity, and commitment to delivering user-friendly experiences were evident in every project. Sameera’s positive attitude and collaborative approach made him a pleasure to work with.
I wholeheartedly recommend Sameera for any UX-related role. His passion for enhancing usability and creating delightful interactions will undoubtedly benefit any organisation.
Drawing parallels from diverse subject areas, a source of enormous knowledge on user experience, and a true team player. These are the 3 key things that comes to mind about Sameera. Sameera is someone who wants to make a difference in the world, and takes every opportunity he gets to do so. From sharing knowledge on unpopular topics, to contributing and driving charities, to initiating standardisation for country wide design systems, Sameera has been part of it all. It was a pleasure to be part of a project Sameera initiated called DeSysLag, which was essentially driving design systems approach for public/government related digital projects which saw a big boost in pickup within a span of few weeks. Sameera is an asset to any team/company and I wish him all the very best!
I had the pleasure of working with Sameera on multiple projects and it has been a very pleasant experience for me. He brings in alot of team spirit can collaboration into teams he works with. He was also onsite at the same time that I was on an onsite engagement in the UK and I have seen Sameera conduct himself professionally and also maintaining good client relationships with our customers. I recommend Sameera with my highest regard and I wish him well in his career.
A selection of brands I've had the privilege to design for, spanning startups to enterprise clients across various industries.
I am happy to walk through the problem-solving process, user research, and final outcomes.
My work spans enterprise SaaS, government digital services, and healthcare technology—all contexts where detailed case studies require confidential discussion.
During portfolio reviews, I share:
Let's schedule a 30-minute walkthrough where I can tailor examples to your team's challenges.
23 years of experience means I've already solved the problem you're hiring for.
This timeline shows my evolution from designing interfaces to architecting experiences that transform businesses. I've built expertise across every challenge modern design leaders face. What you get: Strategic thinking. Hands-on execution. Leadership that elevates entire teams.
Oct 2023
Witney, England, United Kingdom – Hybrid
Oct 2017 – Nov 2023
Ipswich, England, United Kingdom – Hybrid
Jan 2021 – Jun 2023
Colombo, Western Province, Sri Lanka – Remote
Sep 2019 to Mar 2021
Ipswich, England, United Kingdom – On-site
Sep 2014 – Sep 2017
Colombo, Sri Lanka – On-site
Jan 2013 – Sep 2014
Colombo, Sri Lanka
Apr 2012 to Mar 2013
London, United Kingdom
Apr 2008 – Dec 2008
Colombo, Sri Lanka
The Human Behind the Designs
The best designers understand humanity because they're fully human. Family, exploration, and service keep me grounded and inspired.
Every experience—from raising my family to exploring new cultures—teaches me something about how people interact with their world. These lessons live in every design I create.
Ready to turn your complex challenge into an intuitive experience? Let's talk about it.
Discovery → Research → Design → Test → Iterate
Based in Bristol, working globally
Hybrid. I work remotely with global teams and can be on-site in the UK when needed.
Let’s discuss your timeline.
Figma, Adobe XD(ex), Sketch, InVision, Miro, and various user research tools. I adapt to your team’s workflow.
