Frontend Technical Expert (m/w/d)

Permanent employee, Full-time · Valencia

WHAT WE ROCK AT!
As a consultancy and creation company, we act at eye level with our clients - and with each other, too. At nexum, you'll find short decision-making processes, flexible scope for action, and plenty of room for your ideas and further development. Whether you're a newcomer or a seasoned pro, your colleagues are real personalities who learn something new every day through open exchange on challenging topics and grow together: They are parents, globetrotters, musicians, headbangers, nerds...
 
What unites us? We are people with team spirit, high self-motivation, and enthusiasm for digital topics.
 
Curious? Then take a look and get to know your colleagues: https://www.nexum.com/ueber-die-nexum
WHAT WE OFFER...
Advance Your Expertise
Enhance your React skills through nexum Academy, specialized workshops, industry conferences, and advanced JavaScript/React certifications.

Collaborative Innovation
Lead cross-functional teams, shape user experiences, and drive architectural decisions using cutting-edge React tools and frameworks.

Work Your Way
Flexible hours and remote options that fit your creative process. Choose your preferred setup—Mac or Windows—configured to your needs.

Beyond the Code
Connect with tech enthusiasts through team activities, tech meetups, and our annual nexum summer party.
WHAT YOU WILL DO WITH US
Lead Frontend Development
Spearhead major digital initiatives, own the complete React development lifecycle, and drive projects from concept to deployment.

Shape Technical Architecture
Design scalable, maintainable solutions using advanced React patterns while balancing business needs with technical excellence.

Drive Cross-functional Collaboration
Lead requirement gathering, provide accurate estimations, and bridge design vision with technical implementation.

Champion Quality & Best Practices
Set standards for code quality, lead agile methodologies, and ensure comprehensive testing strategies.

Provide Technical Leadership
Serve as the trusted frontend authority, evaluate emerging technologies, and guide architectural decisions.

YOU ARE...
Exceptional Communicator
You articulate complex technical concepts clearly to diverse audiences and foster collaboration across teams and stakeholders.

Seasoned React Expert
You have substantial experience building sophisticated, high-performance React applications with proven scalability.

User Experience Champion
You're passionate about crafting intuitive interfaces and seamless user journeys that balance business goals with user needs.

Quality-Driven Professional
You embrace agile principles while maintaining high standards for code quality, performance, and accessibility.

Growth Catalyst
You're committed to continuous learning and mentoring colleagues to elevate the team's technical capabilities.
YOU HAVE...
Communication Skills
Advanced English proficiency for international collaboration. German knowledge is a plus but not required.

Frontend Leadership
5+ years of progressive frontend development with proven team leadership and project delivery experience.

React & JavaScript Mastery
5+ years building sophisticated React/Next.js applications with deep JavaScript and TypeScript expertise.

API & Architecture Experience
Strong experience with REST/GraphQL APIs, headless CMS/commerce platforms, and scalable frontend architectures.

Technical Excellence
Advanced HTML, CSS/SCSS, Bootstrap skills with focus on SEO, accessibility, and performance optimization.
YOU ARE WELL VERSED...
Development Tools & Workflow
Git version control, CI/CD pipelines, modern build tools (Webpack, Vite), and testing frameworks (Jest, React Testing Library, Cypress).

Modern Development Practices
Agile/Scrum methodologies, performance monitoring, debugging tools, and cloud deployment strategies.

Design & Collaboration Tools
Figma/Sketch for developer handoff, component libraries, design systems, and browser developer tools.

Cross-Platform Development
Responsive design, mobile-first approaches, Progressive Web Apps (PWA), and cross-browser compatibility.

Code Quality & Standards
ESLint, Prettier, Husky, and other tools for maintaining consistent, high-quality codebases.
QUESTION? NO PROBLEM:
We're on a first-name basis here at nexum, so feel free to address us informally in your application. A cover letter is not mandatory - just send us your CV in two minutes. That's it!

Use the "Apply now" button to reach our contact form, where you can also ask us questions. We'll get in touch with you personally without delay. 

Please note, we can only consider applicants with a place of residence in Germany, Spain or Switzerland
About us
nexum is the consultancy and agency for communication, interaction and transactions in the digital age. The company helps its clients to master the challenges of digital transformation and offers them the full range of digital services: Strategy & Innovation, Websites & Experience Platforms, Commerce Solutions, Digital Communication & Media, Data Intelligence & CRM, Software Architecture & Operation as well as Digital Business & Company Building.

nexum is one of the top 5 largest owner-managed digital full-service providers in the German-speaking world and employs over 180 people at its locations in Cologne (headquarters), Berlin, Hamburg, Nuremberg and Paderborn as well as in Biel/Bienne and Valencia. Its clients include Adecco, apoBank, Braun, Claas, Coop Switzerland, Fresenius, Melitta and Swiss Post.
We are looking forward to meeting you!
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