> Markdown version of [/jobs/ext/1609815-back-end-developer](https://www.wearedevelopers.com/jobs/ext/1609815-back-end-developer). 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). --- # Back End Developer - **Company:** Exelin Digital - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Flutter, PHP (Programming Language), Adobe Photoshop, Application Programming Interfaces (APIs), Ahrefs Site Explorer, Data Analysis, HTML5, Bootstrap (Software), Cascading Style Sheets (CSS), Design of User Interfaces, Mobile Application Software, JQuery, Open Source Technology, Swagger, SQLite, Web Performance Optimization, Postman, ReactJS, Pixel Perfect, Codeception, Backend, Vue.js, Syntactically Awesome Style Sheets (SASS), Front End Software Development, Restful APIs, Api Management - **Published:** July 19, 2026 - **Apply:** https://www.buscojobs.com.es/back-end-developer-en-barcelona-ID-363589959 ## About the Role pul lieager to learn new things and have a can-do attitude /li lifluent in written and spoken English /li /ul bThe profile of the candidate /b ul liable to write clean / maintainable code /li lifollows best practices /li liproblem-solver /li liable to work independently /li liresponsible and effective communicators /li lieager to learn new things and have a can-do attitude /li lifluent in written and spoken English /li /ul bWhat we offer /b ul liflexibility /li liyou work your own hours /li liwe value creativity, your ideas and your input /li liopen communication and friendly support /li liwe have a flat structure /li /ul pWe value talent, can-do attitude, passion and willingness to learn from experience, so ifyou're a junior or just started to learn you are welcome to apply. /p pbTo apply, send your CV to: /b /p ul liis able to create clean and modern designs in Photoshop, Invision orsimilar software /li litakes in consideration UI/UX principles when creating a design /li liis able to create logos and ideally illustrations /li lithinks out of the box, is creative and innovative /li /ul h3Front End Developer /h3 ul liable to slice pixel perfect a PSD or similar into a HTML5 websiteand pass W3C validation, while taking SEO principles intoconsideration /li liis proficient in using Bootstrap or a similar framework /li lilikes to create clean UIs /li liis proficient in one of more of the frontend frameworks:Jquery/VueJS/React /li liknows or wants to learn SASS/SCSS/LESS /li /ul h3Back End Developer /h3 ul lihas experience with PHP /li lihas experience with at least one PHP framework /lilihas experience in using Open Source scripts or applications /li lican create REST APIs /li liis familiar with API testing using Codeception, Postman, Swagger or similar /li lican create clean and scalable code while following best practices /li liable to create mobile applications using ReactNative, Flutter or similar /li liis familiar with SQLite and with synchronizing data from mobile device to server /li liable to integrate APIs as a backend for the mobile applications /li liable to create native mobile applications (optional) /li /ul h3Online Marketing /h3 ul liknow the ins and outs of Social Media Marketing /li liis familiar with Inbound Marketing /li liis familiar with PPC /li liis able to create a Marketing Strategy /li /ul h3SEO Specialist /h3 ul liis passionate about Search Engine Optimization and Search Engine Marketing /li lilikes creating successful SEO strategies /li lienjoys keyword research and optimization /li lihas experience with link building /li lihas experience with monitoring performance metrics using SEO tools (eg.Google Analytics) /li lihas experience with On-Page SEO and Off-Page optimization /li /ul /p #J-*****-Ljbffr ## Description pul lieager to learn new things and have a can-do attitude /li lifluent in written and spoken English /li /ul bThe profile of the candidate /b ul liable to write clean / maintainable code /li lifollows best practices /li liproblem-solver /li liable to work independently /li liresponsible and effective communicators /li lieager to learn new things and have a can-do attitude /li lifluent in written and spoken English /li /ul bWhat we offer /b ul liflexibility /li liyou work your own hours /li liwe value creativity, your ideas and your input /li liopen communication and friendly support /li liwe have a flat structure /li /ul pWe value talent, can-do attitude, passion and willingness to learn from experience, so ifyou're a junior or just started to learn you are welcome to apply./p pbTo apply, send your CV to: /b /p ul liis able to create clean and modern designs in Photoshop, Invision orsimilar software /li litakes in consideration UI/UX principles when creating a design /li liis able to create logos and ideally illustrations /li lithinks out of the box, is creative and innovative /li /ul h3Front End Developer /h3 ul liable to slice pixel perfect a PSD or similar into a HTML5 websiteand pass W3C validation, while taking SEO principles intoconsideration /li liis proficient in using Bootstrap or a similar framework /li lilikes to create clean UIs /li liis proficient in one of more of the frontend frameworks:Jquery/VueJS/React /li liknows or wants to learn SASS/SCSS/LESS /li /ul h3Back End Developer /h3 ul lihas experience with PHP /li lihas experience with at least one PHP framework /lilihas experience in using Open Source scripts or applications /li lican create REST APIs /li liis familiar with API testing using Codeception, Postman, Swagger or similar /li lican create clean and scalable code while following best practices /li liable to create mobile applications using ReactNative, Flutter or similar /li liis familiar with SQLite and with synchronizing data from mobile device to server /li liable to integrate APIs as a backend for the mobile applications /li liable to create native mobile applications (optional) /li /ul h3Online Marketing /h3 ul liknow the ins and outs of Social Media Marketing /li liis familiar with Inbound Marketing /li liis familiar with PPC /li liis able to create a Marketing Strategy /li /ul h3SEO Specialist /h3 ul liis passionate about Search Engine Optimization and Search Engine Marketing /li lilikes creating successful SEO strategies /li lienjoys keyword research and optimization /li lihas experience with link building /li lihas experience with monitoring performance metrics using SEO tools (eg.Google Analytics) /li lihas experience with On-Page SEO and Off-Page optimization /li /ul /p #J-*****-Ljbffr ## 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