Senior UI Developer

Bloomreach is building the world’s premier agentic platform for personalization.We’re revolutionizing how businesses connect with their customers, building and deploying AI agents to personalize the entire customer journey.

We're taking autonomous search mainstream, making product discovery more intuitive and conversational for customers, and more profitable for businesses.

We’re making conversational shopping a reality, connecting every shopper with tailored guidance and product expertise — available on demand, at every touchpoint in their journey.

We're designing the future of autonomous marketing, taking the work out of workflows, and reclaiming the creative, strategic, and customer-first work marketers were always meant to do.

And we're building all of that on the intelligence of a single AI engine — Loomi AI — so that personalization isn't only autonomous…it's also consistent.From retail to financial services, hospitality to gaming, businesses use Bloomreach to drive higher growth and lasting loyalty. We power personalization for more than 1,400 global brands, including American Eagle, Sonepar, and Pandora.

Help us evolve and scale the Bloomreach Engagement UI design system and become our new UI Developer. Implement new designs, and create and maintain UI components used across our product. You’ll sit at the intersection of design, engineering, and product, turning ideas into intuitive, robust, and beautiful interfaces. Working in one of our Central European offices (Bratislava, Brno, Prague) or from home on a full-time basis, you’ll become a core part of our Frontend Team.

What tech stack do we use?

Our styles are written in Sass (SCSS).

Our Engagement app currently runs on Angular.

We use JavaScript/TypeScript for application logic.

We use Git for version control.

Our build process uses Nx + Angular CLI, with custom ts-node and Node scripts.

You don’t need to be an expert in every framework from day one, but you should be comfortable working in at least one modern SPA framework (Angular, React, or Vue) and curious to learn the others.

What challenge awaits you?

As a Bloomreach UI Developer, you will be the go‑to person for:

Designing and implementing UI components and patterns that are reused across the Engagement app.

Evolving our in‑house UI framework and design system so that it’s easier and faster for product and engineering teams to build consistent experiences.

Collaborating tightly with product designers to bring new ideas to life and to keep our visual language coherent.

Bringing a CSS architecture mindset to a large codebase so styles remain modular, predictable, and easy to refactor over time.

Leveraging AI in your daily work — from code generation and refactoring suggestions to documentation and quick UI experiments.

Our goal is to make our Engagement app easy to use and visually pleasant for our customers. You’ll operate on three levels: bug fixing, maintenance and creation of UI components, and implementation of new designs — with a strong focus on the design‑system layer and product outcomes. Having a great developer experience is also something we’re serious about.

Your job will be to:

Expand & maintain our UI design system and components library

Improve & maintain our in‑house SCSS framework

Implement new designs and product experiences

a. Expand & maintain our UI design system and components library

Understand how our components work under the hood and enable frontend developers to build advanced interfaces using our framework.

Design and implement reusable UI primitives (tokens, layout primitives, form controls) and higher‑level components in a way that can be applied across Angular applications.

Revise code of the components frequently and keep up with the latest possibilities of CSS (e.g. container queries, cascade layers, new color functions) and how they affect our architecture.

Ensure cross‑browser compatibility (modern browsers only) and good accessibility practices.

Shape visual representation and behavior together with designers, acting as a technical partner in design reviews.

Maintain and improve our internal “Showcase”/component gallery as a single source of truth for our design system (documentation, usage examples).

b. Improve & maintain our in‑house SCSS framework

Extend and update core functions, mixins, and utilities that help us write styles efficiently and keep them easy to reason about.

Evolve our CSS architecture (e.g. layers, naming conventions, design tokens, theming approach) to keep the system scalable as the product grows.

Identify and remove legacy styles, dead code, and inconsistencies, focusing on performance and maintainability.

Use AI‑powered tooling where it makes sense (code search, refactor suggestions, documentation summaries) to speed up this work.

c. Implement new designs and product experiences

Update existing screens to match the latest design specs and interaction patterns.

Research the best strategies for comprehensive changes — understanding how components are reused across screens and in different contexts — and propose pragmatic rollout plans.

Work closely with product managers and designers to make trade‑offs that balance UX quality, technical feasibility, and delivery timelines.

Ensure that visual and structural changes don’t introduce any bugs — partnering with QA and using tools (including AI‑assisted testing where appropriate) to catch regressions early.

Your success story will be:

In 30 days, you will learn how our methodology works, ship your first UI bug fixes, and start contributing to small improvements in our design system.

In 90 days, you will understand how our core components and SCSS framework work, co‑own at least one part of the design system, and support other frontend developers on a sprint project — including reviewing their usage of UI components and any styling or template changes.

In 180 days, you will be able to tackle most tasks on your own, question and challenge designs with confidence, propose and drive improvements to our UI architecture, and help shape the future roadmap of our design system.

You have the following experience and qualities:

Professional — CSS, Sass, working with browser, programming skills, Git, knowledge of Angular (optionally React or Vue), familiarity with web components is an advantage.

Personal — team player, honesty, responsibility, motivation

Professional experience

Strong CSS and Sass skills — CSS will be your bread and butter and for a smooth experience it’s good if you know: selector types and specificity, fonts, relative units, box sizing, positioning, flexbox, grid, responsiveness, pseudo elements, animations, and their performance impacts.

Experience with writing maintainable, modular, component‑based CSS

Experience building or significantly contributing to a design system or UI component library (tokens, components, documentation, versioning, rollout).

Comfortable with intermediate programming in JavaScript or TypeScript — structuring code, working with asynchronous logic, and debugging — and using that knowledge to implement or adjust UI behavior in Angular/React/Vue components.

Hands‑on experience with at least one modern frontend framework (Angular, React, or Vue). Curiosity to apply design‑system thinking across frameworks is a plus.

Familiarity with Git and standard workflows (branching, pull/merge requests, code review).

A genuine passion for modern CSS and web UI, keeping an eye on new specs and browser capabilities and knowing when (and when not) to use them.

An architecture mindset when it comes to stylesheets: you think in layers, dependencies, and long‑term maintainability, not just “what works right now”.

Openness to leveraging AI in the development process — for example, using AI tools to explore refactoring options, generate variants, or support documentation — while still owning the final quality of the solution.

Personal qualities

Product‑oriented mindset: you care about the problem we’re solving and the impact on the user, not only the implementation details.

Ability to work in a team where we value diversity and open‑mindedness.

Willingness to discuss problems honestly, keep focus on what’s important, and look for outcomes, not blame.

Sense of ownership and responsibility — you follow through on what you start and care about the quality of your work in production.

Motivation to grow: you enjoy your craft, seek feedback, and look for ways to improve both the product and the system you’re building on.

Excited? Join us and transform the future of commerce experiences.