> Markdown version of [/jobs/ext/2778918-senior-java-back-end-developer-remote-hybrid](https://www.wearedevelopers.com/jobs/ext/2778918-senior-java-back-end-developer-remote-hybrid). 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). --- # Senior Java Back End Developer (Remote-Hybrid) - **Company:** Techsoulogy - **Location:** Barcelona, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Lifecycle Management, JIRA, Linux, Spring Framework, MySQL, Backend, Atlassian Tools, Apache Kafka, Docker - **Published:** September 7, 2026 - **Apply:** https://www.buscojobs.com.es/senior-java-back-end-developer-remote-hybrid-en-barcelona-ID-369820025 ## About the Role 2-3+ years of experience as Backend Developer. ~ Minimum 2 years of experience developing in Java, Spring, and MySQL. Basic knowledge of Linux. Basic knowledge of Docker. Basic knowledge of Kafka. Basic knowledge of AGILE tools (such as Jira). ## Description Techsoulogy is our way of doing things and our corporate brand that unifies a broad portfolio of specialist advertising, media, and entertainment firms.It combines the latest technology with a human?first approach and a constant exploration of knowledge in order to shape the media landscape.At Techsoulogy we aim to provide a technology and human service that guarantee all areas of the advertising industry throughout the world achieving their goals profitably, effectively and ethically.Tappx is a fast?growth AdTech company inside the Techsoulogy family.It delivers digital advertising solutions for multiple platforms including mobile, OTT/CTV and desktop.It offers a distinct point of difference-technology specifically engineered for mobile and OTT markets-thereby offering brands and agencies increased trust and transparency.Tappx has headlined across numerous high?profile competitive growth rankings such as Red Herring in ****, TECH5 in ****, and in **** Tappx was featured as Europe's 2nd fastest growing advertising company in The Financial Times FT****.In Tappx we keep growing and, therefore, we are looking for new talented people to join our Performance Tech team in our IT department.Mid Java Backend Developer Participate in the entire application life cycle with focus on coding and debugging.Write clean and maintainable code of high quality accomplishing estimated hours and due dates.Offer technical support to the Performance department.Learn about technologies different than Java existing in our tech stack.Measure the impact of new features, interpret key metrics and collaborate with the data team for data?driven decision making.Indefinite contract with competitive conditions.~ Flexible working hours (take control of your schedule) with core time.~ Hybrid model in Barcelona & Madrid (1 day in the office and the rest teleworking) or 100% remote work anywhere in Spain.~ Private health insurance.~ 1 & 1 English or Spanish language lessons.~ Continuous training & development budget.~ Healthy snacks, coffee and a lot of tea (HQ).~ We are open to negotiating if the candidate exceeds our mid?level criteria and qualifies for a senior role.2-3+ years of experience as Backend Developer.~ Minimum 2 years of experience developing in Java, Spring, and MySQL.Basic knowledge of Linux.Basic knowledge of Docker.Basic knowledge of Kafka.Basic knowledge of AGILE tools (such as Jira).# ## Related Videos - [Local Candidates vs International Talent - Building the Very Best Dev Team](https://www.wearedevelopers.com/videos/1067-local-candidates-vs-international-talent-building-the-very-best-dev-team) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Navigating the Future of Junior Developers in Tech](https://www.wearedevelopers.com/videos/1280-navigating-the-future-of-junior-developers-in-tech) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Best Job Boards for Remote Work for Developers](https://www.wearedevelopers.com/magazine/290-best-job-boards-for-remote-work-for-developers) - [Mastering Remote Work: Tips for Developers](https://www.wearedevelopers.com/magazine/558-mastering-remote-work-tips-for-developers)