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Lead Front End Developer



Muume AG ( is an emerging growth company in the field of digital solutions for the retail and consumer industry. We develop and sell standard solutions in this segment, especially for small and medium-sized market participants in Switzerland,Germany and abroad. For the top segment, we work with large international consulting companies and resellers, to which we contribute as a technology provider. We also develop digital solutions and platforms for traditional card providers on their way to digital cards. Muume employs around 30 software engineers at various locations. For our Swiss Software Engineering Team, we are seeking for a

React.js principal developer that can act as Head of Front-End Development – Principal Developer - Lead Front End Developer - engineering manager

Job Description

We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.

Key Responsibilities:

– Development of Web Front End applications;

– Ensure best possible performance, quality and responsiveness of the app;

– Help and guide the product team when designing new features;

– Implementation of code documentation;

– Applying internal company standards

– Developing new user-facing features using React.js

– Building reusable components and front-end libraries for future use

– Translating designs and wireframes into high quality code

– Optimizing components for maximum performance across a vast array of web-capable devices and browsers



– Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

– Thorough understanding of React.js and its core principles
– Familiarity with newer specifications of EcmaScript
– Experience with data structure libraries (e.g., Immutable.js)
– Knowledge of isomorphic React is a plus
– Knowledge of modern authorization mechanisms, such as JSON Web Token
– Ability to understand business requirements and translate them into technical requirements
– A knack for benchmarking and optimizatio

– Advanced knowledge of HTML5, CSS3, JavaScript;

– Advanced knowledge of CSS Preprocessors (Sass, Less);

– Advanced knowledge of the following frameworks: React, Flux, Redux, Angular, Bootstrap;

– Solid understanding of frontend MVC/MVVM architectures;

– Knowledge of modern JavaScript standards (ES6, ES7);

– Knowledge of Automatization Tools: npm, Webpack, Gulp, Grunt;

– Experience using RESTful APIs;

– Experience with Responsive/Adaptive Design;

– Experience with Testing/Debugging;

– Experience with Git, task trackers;

– Good writing and verbal communication skills in English.

Additional advantages:

– Experience with Adobe Photoshop, Adobe Illustrator, Sketch;

– Experience with TYPO3 CMS;

– Knowledge of CI/CD/CL pipelines;

– Follow solid coding practices and standards;

– Ability to accurately set and meet deadlines;

– Knowledge of Semantic Release/Conventional Commits.

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