> Markdown version of [/jobs/ext/1670689-front-end-engineer](https://www.wearedevelopers.com/jobs/ext/1670689-front-end-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Front End Engineer - **Company:** Abacum Means... - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Cascading Style Sheets (CSS), Databases, Data Structures, ECMAScript, Python (Programming Language), PostgreSQL, MySQL, Scrum Methodology, TypeScript, ReactJS, Ios Frameworks, Pandas, Playwright, React Redux, Asynchronous Programming, Restful APIs - **Published:** July 25, 2026 - **Apply:** https://www.jobleads.com/es/job/e616e58ed5d3cbe95f52f2451d05a4a84 ## About the Role * TypeScript * React (or strong experience in other UI frameworks) * Redux * SCSS/CSS-in-JS * Jest/Playwright * Methodology Agile/Scrum * Data driven Skills * Strong knowledge of JavaScript, asynchronous programming, closures, types, and ES6. * Ability to solve complex product problems with optimized data structures and best practices * Product mindset * Team player * Deep understanding on performance when building and operating through observability, * Experience with backend programming languages (Python, NodeJS, GO or Ruby are preferred) and RESTful API creation * Database systems knowledge (PostgreSQL and MySQL are preferred) * Experience with Pandas, Polars or similar DataFrames technologies ## Description * Collaborate closely with engineers, product designers, and product to perform experiments and test new ideas * Build performant, design-centric, reusable and usable interfaces that solve complex needs. Such as customisation possibilities for our users, complex data visualisations (graphs, charts, etc...), delightful components that provide the best platform experience * Drive user defined data modeling and performance, providing the user with customization possibilities through reusable building blocks: models, variables, formulas, … * Take operational responsibility for the components that you write * Work in an environment that supports your individual growth by providing you with challenging tasks and projects to solve and the freedom to acquire new skills in hack time * Work with product and our operations team to incorporate customer feedback in order to constantly improve our product ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Advanced Typing in TypeScript](https://www.wearedevelopers.com/videos/496-advanced-typing-in-typescript) - [Frontend Abstractions: Frameworks and Applications Architectural Patterns](https://www.wearedevelopers.com/videos/2066-frontend-abstractions-frameworks-and-applications-architectural-patterns) - [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app) - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) ## Related Articles - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [Dev Digest 133 - Back to Front](https://www.wearedevelopers.com/magazine/474-dev-digest-133-back-to-front) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [The Best JavaScript Framework to Learn](https://www.wearedevelopers.com/magazine/229-the-best-javascript-framework-to-learn) - [Dev Digest 131 - AI'm not sure about OSS](https://www.wearedevelopers.com/magazine/472-dev-digest-131-ai-m-not-sure-about-oss)