Senior Frontend Engineer
Colliers is a global real estate services and investment management company expanding its technology footprint in Spain. They are assembling multiple teams in a new Technology Hub in Madrid to standardize the stack, accelerate delivery, and build data-driven products at global scale.
Do you want to design and build the frontend experiences that power these global products? Keep reading!👇
¿Qué harás?
Colliers is a global real estate services and investment management company with operations across EMEA, the Americas, and APAC. They help clients buy, lease, operate, and optimise property portfolios, and are now scaling a global technology platform to drive data-driven decisions and modern digital products.Technology has strong executive sponsorship and a global leadership structure (Software Engineering, Data & AI, Infrastructure, Product, Enterprise Architecture, etc.) to unify and standardise how software is built worldwide.
Colliers is launching a Technology Hub in Madrid to bring together a diverse landscape of internal and client-facing applications into a single, standardised development environment. Think containerized dev setups, robust CI/CD, shared component libraries/design systems, security screening baked into the pipeline, and, above all, a strong Developer Experience. The work spans platform engineering and product delivery (analytics & data products, internal platforms, client portals), in close collaboration with Product, Data & AI, and Infrastructure teams.
As a Frontend Engineer, you’ll work mainly with React and TypeScript, building accessible, high-performance interfaces and component libraries, integrating with REST/GraphQL APIs, and shaping the design system used across regions.
Help build and consolidate a high-performing engineering hub from the ground up by turning Colliers’ global strategy into execution at the UI layer:
- Design, build and maintain scalable frontend applications and component libraries with React + TypeScript, integrated via REST/GraphQL, on a unified, cloud-native platform.
- Rationalize and modernize legacy frontends (keep, refactor or rebuild), converge on a single design system/Storybook, and retire duplicated country-specific solutions.
- Uphold common tooling and standards (accessibility/WCAG, testing with Playwright/Cypress, performance budgets, observability, security & privacy) and contribute to engineering KPIs like throughput, lead time and reliability.
- Collaborate across time zones and functions (Product, Design, DevOps/EngOps, Data, QA, Architecture), translating business needs into elegant, performant user experiences.
This is a multi-year transformation with real autonomy, high visibility, and the opportunity to shape how Colliers builds software at global scale, from inside the frontend codebase.
Tu evolución
En 1 mes
You will have completed your onboarding with your manager and key peers in Software Engineering, Product, Data & AI, Infrastructure, Security and Enterprise Architecture, gaining a high-level view of the business and how the current application landscape is distributed across countries. You will be familiar with the main platforms and internal tools, understand the Madrid hub’s initial scope, have your React/TypeScript environment and CI/CD pipelines set up (including Storybook), and know exactly who to turn to for each domain.
Tus responsabilidades
Design & build UIs. Develop scalable, accessible interfaces and reusable components with React + TypeScript, integrating REST/GraphQL APIs with solid testing and performance.
Own delivery end-to-end. Code, review, automate with CI/CD, and ship frontends packaged for modern runtimes; collaborate on containerised workflows when needed.
Make it observable & reliable. Track frontend health with logs, metrics and traces, define alerts, and improve delivery metrics.
Modernise the stack. Refactor/rebuild legacy frontends, retire duplicated country apps, and evolve the design system/Storybook and shared component libraries.
Collaborate & elevate. Partner with Product, Design/UX, DevOps, Data, QA and Architecture; mentor peers, uphold standards, and document data-informed decisions.
¿Cómo lo harás?
As part of a cross-functional squad in the Madrid Technology Hub, design, build and operate frontend applications that help set the reference for how Colliers ships software globally. Squads own experiences end-to-end, make decisions close to the problem, and work within clear global guardrails for security, privacy and architecture.
Mentoring peers through design and code reviews, you’ll share best practices and foster a culture of high standards with psychological safety, where failures are documented, teams learn quickly, and improvements happen without blame.
Ownership of your domain includes planning and estimation, turning product and design requirements into well-scoped work, and delivering predictably across regions and time zones in close collaboration with Product & Design.
Together with EngOps and Architecture, evolve a unified developer platform, containerized dev environments, Storybook-driven component workflows, automated testing, trunk-based development and CI/CD by default.
¿Cuándo trabajarás?
Flexible and outcome oriented. Work is async-first and meetings are intentional and time-boxed. Given the global setup, teams keep working within EMEA hours, and may occasionally join early or late sessions with the Americas/APAC, balanced with time off. Within these guardrails, the software team will define the team rhythm (ceremonies and any optional core hours) to keep coordination tight without sacrificing flexibility. 🛫.
Día laborable
Jornada completa
Vacaciones
23 días
Jornada laboral
Flexible¿Dónde trabajarás?
Presencial
Teletrabajo
The work model is hybrid with 2-3 on-site days per week in their office in central Madrid (Paseo de la Castellana), the rest is remote and self-organised by each squad. Flexibility to be on-site in the office when it’s needed for the role is expected within reason.
On-site presence is about culture and speed, not control, and they follow a trust-based, async-first operating model.
¿Con quién trabajarás?
Although Colliers has more than 22,000 employees worldwide, its technology organization is much smaller and distributed across multiple countries and regions. The Madrid Technology Hub is brand new, and you’ll be the one of the first people on the ground. Your initial points of contact will be Christian, Tobias and the new Software Engineering Director for Spain. If you’d like to check their profiles, here they are:
- Christian Reitz (Global Head of Software Engineering)
- Tobias Klöpper (Global Senior Director EngOps and DevOps)
¿Qué piden?
Colliers are expanding a brand-new Technology Hub in Madrid and needs Senior Frontend Engineers to build scalable user interfaces, standardize the platform, and help set the bar for how software gets shipped globally. They’re open to strong frontend profiles who’ve shipped production UIs and can turn “we should…” into “it’s live.”
Tech requirements
- 5+ years building frontends with React + TypeScript; strong component-driven design and API integration (REST/GraphQL).
- Hands-on with design systems & Storybook, translating Figma designs into accessible, pixel-perfect interfaces.
- Accessibility & performance: WCAG, Core Web Vitals/Lighthouse, performance and responsive design.
- Testing & CI/CD: Playwright or Cypress, unit tests, quality gates, automated builds and deployments.
- State & styling: Redux/Context (or similar), modern CSS (CSS Modules/Tailwind/Emotion).
- Observability & reliability: Sentry/metrics, basic tracing, alerting, etc
Non-tech requirements
- Agile delivery (Scrum/Kanban), collaboration across time zones, and excellent communication in English and Spanish.
- Experience in international, multi-cultural environments and close partnership with Product & Design.
- Builder mindset: ownership, pragmatic problem-solving, sleeves rolled up when needed.
Tecnologías
Innegociable
React
Avanzado 
TypeScript
Intermedio 
Figma
Intermedio
Estaría bien
Redux
Intermedio 
Cypress
Intermedio
Otras habilidades
Innegociable
Capacidad de autogestión
Capacidad de presentación
Pensamiento creativo
Atención al detalle
Estaría bien
Aprendizaje Continuo
Comunicación intercultural
Suma puntos
Visión crítica
Idiomas
¿Qué ofrecen?
🎯Up to €70k salary
🩺 Health insurance
🚌 Transport card
🍽️ Restaurant card
💂 English classes
🎂 Birthday half-day off
🍼 Childcare voucher
🏃 Sporting events
📡 Hybrid model
🌍 Global exposure
Beneficios
Cheque Guardería
Clases de Idiomas
Ticket Restaurante
Ayuda con el transporte
Dinámicas y eventos de teambuilding
What the FAQ?
Yes but the role is hybrid in Madrid, so you will need to live in or relocate to the Madrid area. You will be employed by Colliers Spain, which means you must have the legal right to work in Spain (e.g., EU/EEA/Swiss citizenship or a valid Spanish work permit/visa).
Work-authorization specifics will be confirmed during the process.
- Stage 1: Screening call with Tobias Klöpper (or a senior engineering lead). Background, motivation, and fit with the Madrid Hub context.
- Stage 2: Technical deep-dive: Frontend system design and problem-solving on a Miro board (component architecture, state management, performance, accessibility, API integration). Short prep window, then a collaborative discussion with engineers.
- Stage 3: Final call/meeting