Urgent! Mobile Developer (9-month contract with bonus incentives) Job Opening In Madrid – Now Hiring MULTIVERSE COMPUTING
Overview
We are looking to fill this role
immediately
and are reviewing applications daily.
Expect a fast, transparent process with quick feedback.
Why join us?
We are a European deep-tech leader in quantum and AI, backed by major global strategic investors and strong EU support.
Our groundbreaking technology is already transforming how AI is deployed worldwide — compressing large language models by up to 95% without losing accuracy and cutting inference costs by 50–80%.
Joining us means working on cutting-edge solutions that make AI faster, greener, and more accessible — and being part of a company often described as a “quantum-AI unicorn in the making.” We offer Competitive annual salary Two unique bonuses: signing bonus at incorporation and retention bonus at contract completion.
Relocation package (if applicable).
Up to 9-month contract, ending on June 2026.
Hybrid role and flexible working hours.
Be part of a fast-scaling Series B company at the forefront of deep tech.
Equal pay guaranteed.
International exposure in a multicultural, cutting-edge environment.
As a Mobile Developer (iOS & Android, LLM Applications), you will: Design, build, and maintain native mobile applications for both iOS (Swift/Objective-C) and Android (Kotlin/Java) platforms, with a focus on AI/LLM-powered features and APIs. Integrate advanced AI, LLM, and NLP capabilities to deliver seamless in-app chat, text, or recommendation features.
Collaborate with designers, product managers, and backend/AI engineers to deliver high-performance and engaging user experiences.
Connect mobile apps to cloud services and APIs, ensuring real-time delivery of AI outputs and secure data exchange.
Write clean, maintainable, and efficient code; troubleshoot, debug, and optimize across platforms for quality, reliability, and scalability.
Monitor app performance, report issues, and contribute to continuous improvements in codebase and mobile UX.
Document development processes, participate in code reviews, and support app deployment to the App Store and Google Play.
Required Qualifications Bachelor’s degree in Computer Science, Software Engineering, or related technical field.
Minimum 2 years’ experience developing and releasing iOS and Android mobile applications, including API/cloud integrations.
Proficiency in Swift and Objective-C for iOS; Kotlin and Java for Android development.
Familiarity with mobile UI/UX design principles, version control (Git), and use of Android Studio/Xcode.
Experience integrating mobile apps with RESTful APIs and cloud services.
Ability to communicate effectively and collaborate in a cross-functional product team.
Preferred Qualifications Experience building mobile apps with LLM, NLP, or generative AI features.
Familiarity with cloud ML services (AWS, Azure, GCP, OpenAI).
Prior experience publishing and maintaining apps on both App Store and Google Play.
Interest in mobile data security and user privacy protections.
About Multiverse Computing Founded in 2019, we are a well-funded, fast-growing deep-tech company with a team of 180+ employees worldwide.
Recognized by CB Insights (2023 & 2025) as one of the Top 100 most promising AI companies globally, we are also the largest quantum software company in the EU.
Our flagship products address critical industry needs: CompactifAI → a groundbreaking compression tool for foundational AI models, reducing their size by up to 95% while maintaining accuracy, enabling portability across devices from cloud to mobile and beyond.
Singularity → a quantum and quantum-inspired optimization platform used by blue-chip companies in finance, energy, and manufacturing to solve complex challenges with immediate performance gains.
You’ll be working alongside world-leading experts in quantum computing and AI, developing solutions that deliver real-world impact for global clients.
We are committed to an inclusive, ethics-driven culture that values sustainability, diversity, and collaboration — a place where passionate people can grow and thrive.
Come and join us! As an equal opportunity employer, Multiverse Computing is committed to building an inclusive workplace.
The company welcomes people from all backgrounds, including age, citizenship, ethnic and racial origins, gender identities, individuals with disabilities, marital status, religions and ideologies, and sexual orientations to apply.
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Unlock Your Mobile Developer Potential: Insight & Career Growth Guide
Real-time Mobile Developer Jobs Trends in Madrid, Spain (Graphical Representation)
Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph below. This graph displays the job market trends for Mobile Developer in Madrid, Spain using a bar chart to represent the number of jobs available and a trend line to illustrate the trend over time. Specifically, the graph shows 36673 jobs in Spain and 8889 jobs in Madrid. This comprehensive analysis highlights market share and opportunities for professionals in Mobile Developer roles. These dynamic trends provide a better understanding of the job market landscape in these regions.
Great news! MULTIVERSE COMPUTING is currently hiring and seeking a Mobile Developer (9 month contract with bonus incentives) to join their team. Feel free to download the job details.
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An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at MULTIVERSE COMPUTING adheres to the cultural norms as outlined by Expertini.
The fundamental ethical values are:The average salary range for a Mobile Developer (9 month contract with bonus incentives) Jobs Spain varies, but the pay scale is rated "Standard" in Madrid. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.
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Before the Interview:To prepare for your Mobile Developer (9 month contract with bonus incentives) interview at MULTIVERSE COMPUTING, research the company, understand the job requirements, and practice common interview questions.
Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the MULTIVERSE COMPUTING's products or services and be prepared to discuss how you can contribute to their success.
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