Application Developer (Fixed-term contract)

MULTIVERSE COMPUTING; Barcelona; Híbrido; EUR 40.000 - 70.000; Jornada completa

Descripción de la vacante

A leading deep-tech company in Barcelona is seeking a Software Engineer to develop innovative solutions using Python and app development frameworks. This role requires 1-2 years of experience for juniors and 3+ years for mid-level candidates. Join a multicultural team focused on cutting-edge AI and quantum technologies in a supportive and flexible work environment. Competitive salary and bonuses provided.

Servicios

Competitive annual salary

Signing and retention bonuses

Relocation package

Flexible working hours

Formación

• 1-2 years of experience for junior role, 3+ for mid role.
• Strong ability to work in teams and with diverse professionals.
• Commitment to high-quality code through best practices.

Responsabilidades

• Develop and deploy software systems on cloud.
• Work with APIs to design workflows.
• Collaborate with cross-functional teams on solutions.

Conocimientos

Python

App development (e.g., Flutter or Next.js)

Cloud experience (e.g., AWS)

Docker

Git

CI/CD pipelines

API development

Excellent communication skills

Educación

Bachelor's degree in Computer Science or related field

Descripción del empleo

Overview

Come and join our multicultural team!

5 locations

• 27 languages

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).
• Fixed-term contract ending in 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.

Required Qualifications

• Bachelor\'s degree or higher in Computer Science, a related technical field or relevant industry experience
• Expert knowledge of Python and extensive experience in app development (e.g. Flutter or Next.js).
• Junior: 1-2 years of experience in software engineering
• Mid: 3+ years of experience in software engineering
• Experience in developing and deploying software systems on the cloud, e.g. AWS.
• Proficiency with Docker, git and CI / CD pipelines.
• Demonstrated commitment to maintainable, high-quality code through best practices such as testing, documentation, and clean design principles, and the ability to instill this in others.
• Strong ability to work with APIs and design efficient application workflows.
• Excellent communication and soft skills : a people’s person.
• Ability to work with experts from different professional backgrounds, both in-person and through online resources

Preferred Qualifications

• Experience with algorithm development and optimization, designing scalable and robust class structures.
• Experience in working with cross-functional teams.
• Experience working with deep learning models.
• Experience developing, deploying and maintaining RAG-like applications.

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 breakthrough 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 different backgrounds, including age, citizenship, ethnic and racial origins, gender identities, individuals with disabilities, marital status, religions and ideologies, and sexual orientations to apply.