Software Engineer, Multiverse Computing

9-month contract

€45-51.8k

+ Bonus

AWS

Python

C++

Rust

Spark

Git

Junior, Mid and Senior level

Barcelona

More information about location

3 days a week in office

Quantum software for complex challenges

Be an early applicant

Quantum software for complex challenges

101-200 employees

B2BArtificial IntelligenceDeep TechMachine LearningSaaS

Be an early applicant

€45-51.8k

+ Bonus

AWS

Python

C++

Rust

Spark

Git

Junior, Mid and Senior level

Barcelona

More information about location

3 days a week in office

101-200 employees

B2BArtificial IntelligenceDeep TechMachine LearningSaaS

Company mission

To bring quantum computing to society and use cases with great impact on society and on the technological wealth of the national and international territory.

Job

Company

Role

Who you are

Bachelor's degree or higher in Computer Science, a related technical field or relevant industry experience
Expert knowledge of Python and preferably other languages such as Rust and C/C++
Junior: 1-2 years of experience in software engineering with focus on machine learning and data science
Mid: 3+ years of experience in software engineering with focus on machine learning and data science
Experience in developing and deploying software systems on the cloud, e.g. AWS
Proficiency with 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 instil 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

Desirable

Demonstrated familiarity with developing on and with LLMs, including tools and frameworks such as HuggingFace Transformers, OpenAI APIs, vector databases, and model-serving platforms
Experience with distributed computing frameworks and concepts, such as Ray, Apache Spark, or distributed training/inference across GPUs and nodes
Experience in working with cross-functional teams
Experience with algorithm development and optimization, designing scalable and robust class structures

What the job involves

Join a world-class team of Quantum and AI experts with an extensive track record in both academia and industry
Work with Fortune-500 customers from government and private sectors
Collaborate with the founding team in a fast-paced startup environment
Tackle high value open problems from industry
Take on technical leadership and work together with software and DevOps engineers as well as our machine learning and quantum experts to industrialize Multiverse’s core technologies

Our take

Multiverse Computing is a company working on quantum and quantum-inspired computing solutions, addressing the limitations of traditional computing across finance, energy, manufacturing, and healthcare.

With its flagship products Singularity and CompactifAI, the company democratises quantum computing access, enabling professionals to leverage advanced algorithms for AI-driven optimisation and data compression without prior quantum expertise.

The company's had a successful 2025 too, first being named on the 2025 CB Insights' List of the 100 Most Innovative AI startups and then announcing a whopping $215M funding round. With this additional capital, the company is focused on strengthening CompactifAI, and further accelerating its name on a global scale.

Kirsty

Company Specialist at Welcome to the Jungle

Company

Funding (last 2 of 10 rounds)

Jun 2025

$223.8m

SERIES B

Mar 2025

$77m

GRANT

Total funding: $360.9m

Company HQ

Miramón-Zorroaga, Donostia-San Sebastian, Spain

Leadership

Enrique Lizaso Olmos

(Founder & CEO)

Founder of BlockTac and President of the 'Quantum for Quants' Commission at the Quantum World Association. Previously taught Statistical Methods for Engineering at the University of Vic - Central University of Catalonia.

Samuel Mugel

(CTO)

Mentor at the Creative Destruction Lab, and Scientific Advisor for the McKinsey Technology Council and Quantum World Association. Previously a Computational Physicist at Cortirio and a Technical Director at Quantum Ventures.

Alfonso Rubio-Manzanares

(CMO)

Partner and CEO at Entanglement Partners, as well as the General Manager at The Carrot Cake. They are also on multiple Advisory Boards, including greenYng, Ubiquat Technologies, and Ontek. Previously co-founded Ontek, Hubtype, and Cabier Institute.

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