
E-commerce & Marketplaces
High-converting online stores, marketplace platforms, checkout experiences, and customer-focused shopping journeys.

ZenTexx engineers web products for Dublin's most ambitious companies — from
bespoke web applications and multi-tenant SaaS platforms to API ecosystems
and marketplace builds. GDPR-compliant by design. Hosted in the EU. Built
for the precision and regulatory rigour Ireland's digital economy demands.

The web development landscape in Ireland has shifted. Businesses no longer just need a website — they need a web product: a performant, scalable, secure application that sits at the centre of how they acquire, serve, and retain customers.ZenTexx was built for exactly this. We're a Dublin-based web product development company staffed by senior engineers, product-minded architects, and developers who've built systems that handle real Irish scale — from seed-stage MVPs to enterprise platforms managing millions of monthly transactions.
If your product needs to perform reliably, integrate cleanly, comply with Irish and EU regulations, and give your engineers something they're proud to maintain — that's what we build.

Purpose-built web applications engineered around your specific business logic — not adapted from a template or off-the-shelf platform. We architect for the features you need today and the scale you’re planning for in 24 months.
Multi-tenant SaaS platforms built to support your growth from first customer to enterprise contract — with the subscription billing, role-based access control, usage analytics, and audit logging that B2B buyers expect before signing a deal.
Custom e-commerce and two-sided marketplace platforms built for Irish and EU consumer protection requirements — not a Shopify theme with a logo swap. We engineer checkout flows, payment processing, seller/buyer dashboards, and review systems from the ground up.
RESTful and GraphQL APIs that connect your web product to the systems your Dublin operation depends on — CRM, ERP, banking APIs, HSE data standards, Salesforce, HubSpot, Xero, and industry-specific data sources across Irish and EU regulated sectors.
Legacy web applications are the hidden cost that compounds every sprint — slower feature delivery, harder developer onboarding, growing security exposure, and enterprise deals lost to competitors running modern stacks. We fix this without stopping your business.
.png&w=3840&q=75)
Zentexx conducts deep user research with Dublin and European audiences bilingual interviews, competitive analysis, and journey mapping.
View Work.png&w=3840&q=75)
Zentexx conducts deep user research with Dublin and European audiences bilingual interviews, competitive analysis, and journey mapping.
View WorkRated 4.9 based on verified customer reviews
Read full review on clutch
”The platform is incredibly intuitive and powerful. Our SaaS onboarding became 2x faster after using Zentexx.”
David Miller
Product Manager at Barre
Stakeholder interviews, existing analytics review, user research recruitment, and a heuristic audit of your current product. We align on what the actual problem is before agreeing on anything else.
Problem statements, user personas grounded in research, validated journey maps, and a north-star UX brief that your team signs off before design begins.
Wireframes, interactive prototypes, and high-fidelity UI developed in weekly review cycles with your team — never a six-week black box followed by a big reveal.
Annotated Figma specs, a Storybook component library, and a post-launch review session. We remain available as your embedded design partner as the product evolves.

High-converting online stores, marketplace platforms, checkout experiences, and customer-focused shopping journeys.

Banking platforms, payment products, investment tools, and secure financial experiences built around user trust.

Property management systems, investment platforms, listing tools, and digital real estate products.

Property listing platforms, booking experiences, agent dashboards, and tools that simplify property decisions.

Learning platforms, student portals, course management products, and engaging digital education experiences.

Patient applications, appointment systems, healthcare portals, and operational dashboards for medical teams.

AI-powered SaaS products, intelligent dashboards, automation tools, and complex workflows made easy to use.

AI-powered SaaS products, intelligent dashboards, automation tools, and complex workflows made easy to use.
Every ZenTexx engagement is staffed by senior engineers with production experience on systems of your scale. We don’t rotate inexperienced developers onto client projects.
Our engineers ask why before they ask how. A feature built precisely to the wrong spec is still the wrong feature — and you'll pay to undo it. We flag ambiguity early,
We build with EU data residency, GDPR data minimisation, and DPC compliance as architectural defaults — not post-build add-ons. Your legal team will thank you.
OWASP Top 10 mitigations, dependency scanning, secrets management, and secure-by-default deployment practices are part of how we build — not a separate engagement
Clean architecture, consistent patterns, readable documentation, and test coverage that gives your next engineer confidence — not a codebase that requires the
UX design is about how a product works and how easy it is to use. UI design is about how a product looks. We handle both together so your product works well and looks great.
Most design projects take 3–8 weeks depending on scope, number of screens, research needs, and how quickly feedback is shared.
Yes. We treat your business idea, product strategy, and internal information as confidential from the first conversation.
Yes. We work in review cycles, so your team can give feedback and request changes while the project is still moving.
Yes. We can create reusable Figma components, style guides, interaction rules, and developer-ready design system documentation.
Yes. We can validate flows, prototypes, and key screens with real users before development starts.