1,926,090open jobs
112,875companies
250,551added this week
Browse all
Salary
≈ $64k – $138k per year (Estimated)
Location
In office (Zaragoza)
Seniority
Senior · 5+ years exp
Visa
Sponsorship offered in the posting
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Oct 19, 2026. Multiverse Computing scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Multiverse Computing is a technology company that develops software solutions based on quantum and quantum inspired computing. It provides tools and platforms that apply these methods to areas such as optimization, machine learning and financial analysis.

Multiverse Computing

Multiverse is a well-funded, fast-growing deep-tech company founded in 2019. We are the largest quantum software company in the EU and have been recognized by CB Insights (2023 and 2025) as one of the 100 most promising AI companies in the world.

With 180+ employees and growing, our team is fully multicultural and international. We deliver hyper-efficient software for companies seeking a competitive edge through quantum computing and artificial intelligence.

Our flagship products, CompactifAI and Singularity, address critical needs across various industries:

  • CompactifAI is a groundbreaking compression tool for foundational AI models based on Tensor Networks. It enables the compression of large AI systems-such as language models-to make them significantly more efficient and portable.

  • Singularity is a quantum- and quantum-inspired optimization platform used by blue-chip companies to solve complex problems in finance, energy, manufacturing, and beyond. It integrates seamlessly with existing systems and delivers immediate performance gains on classical and quantum hardware.

You’ll be working alongside world-leading experts to develop solutions that tackle real-world challenges. We’re looking for passionate individuals eager to grow in an ethics-driven environment that values sustainability and diversity.

We’re committed to building a truly inclusive culture-come and join us.

Job Overview

We are seeking a skilled and experienced Machine Learning Engineer with a strong background in Large Language Models to join our team. In this role you will have the opportunity to leverage cutting-edge quantum and AI technologies to lead the design, implementation, and improvement of our language models, as well as working closely with cross-functional teams to integrate these models into our products. You will have the opportunity to work on challenging projects, contribute to cutting-edge research, and shape the future of LLM and NLP technologies.

As a Machine Learning Engineer, you will

  • Design and develop new techniques to compress Large Language Models based on quantum-inspired technologies to solve challenging use cases in various domains.

  • Conduct rigorous evaluations and benchmarks of model performance, identifying areas for improvement, and fine-tuning and optimising LLMs for enhanced accuracy, robustness, and efficiency.

  • Build LLM based applications such as RAG and AI agents.

  • Use your expertise to assess the strengths and weaknesses of models, propose enhancements, and develop novel solutions to improve performance and efficiency.

  • Act as a domain expert in the field of LLMs, understanding domain-specific problems and identifying opportunities for quantum AI-driven innovation.

  • Design, train and deliver custom deep learning models for our clients

  • Work in diverse areas beyond LLM, e.g., computer vision.

  • Maintain comprehensive documentation of LLM development processes, experiments, and results.

  • Share your knowledge and expertise with the team to foster a culture of continuous learning, guiding junior members of the team in their technical growth and helping them develop their skills in LLM development.

  • Participate in code reviews and provide constructive feedback to team members.

  • Stay up to date with the latest advancements and emerging trends in LLMs and recommend new tools and technologies as appropriate.

Required minimum Qualifications: 

  • Bachelor's, Master's or Ph.D. in Artificial Intelligence, Computer Science, Data Science, or related fields.

  • 5+ years of hands-on experience with designing, training or fine-tuning deep learning models, preferably working with transformer or computer vision models.

  • 5+ year of hands-on experience using transformer models, with excellent command of libraries such as HuggingFace Transformers, Accelerate, Datasets, etc."

  • Solid mathematical foundations and theoretical understanding of deep learning algorithms and neural networks, both training and inference.

  • Excellent problem-solving, debugging, performance analysis, test design, and documentation skills.

  • Strong understanding with the fundamentals of GPU architectures and and LLM hardware/ software infrastructures.

  • Excellent programming skills in Python and experience with relevant libraries (PyTorch, HuggingFace, etc.).

  • Experience with cloud platforms (ideally AWS), containerization technologies (Docker) and with deploying AI solutions in a cloud environment

  • Excellent written and verbal communication skills, with the ability to work collaboratively in a fast-paced team environment and communicate complex ideas effectively.

  • Previous research publications in deep learning or any tech field is a plus

  • Fluent in English

Preferred Qualifications: 

  • Experience running large-scale workloads in high-performance computing (HPC) clusters.

  • Experience in handling large datasets and ensuring data quality.

  • Experience with inference and deployment environments (TensorRT, vLLM, etc.).

  • Experience in accuracy evaluation of LLMs (OpenLLM Leaderboard).

  • Experience building and evaluating RAG systems.

  • Experience in building non-LLM deep learning applications, e.g., computer vision, audio or signal processing.

  • Familiarity with AI ethics and responsible AI practices.

  • Experience in DevOps/MLOps practices in deep learning product development.

Perks and Benefits

  • Indefinite contract.

  • Equal pay guaranteed.

  • Variable performance bonus.

  • Signing bonus.

  • We offer work visa sponsorship (If applicable).

  • Relocation package (if applicable).

  • Private health insurance.

  • Eligibility for educational budget according to internal policy.

  • Hybrid opportunity.

  • Flexible working hours.

  • Language classes and discounted lunch options

  • Working in a high paced environment, working on cutting edge technologies.

  • Career plan. Opportunity to learn and teach.

  • Progressive Company. Happy people culture

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.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,926,090 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

AI/ML
Similar stack
Same company
Zaragoza
≈ $132k – $288k per year (Estimated) • Remote (EMEA) • Full-Time • 7+ years exp
AI/ML
AI Agents
LLM
Apply
≈ $59k – $108k per year (Estimated) • In office • Warsaw
Python
Java
C++
Perl
C++
TensorFlow C++
AI/ML
LangChain
Hadoop
Spark
XGBoost
Vertex AI
AI Agents
TensorFlow
PyTorch
Google ADK
Machine Learning
DevOps
GCP
Analytics
ETL/ELT
Apply
$334k – $500k per year • Equity • In office • Nationals only • Full-Time • 10+ years exp • Bachelor's Degree • Los Angeles
AI/ML
Multimodal AI
Recommender Systems
Machine Learning
Apply
$130k – $150k per year • In office • Full-Time • PhD • United States
Python
Apply
In office • Internship • Paris
AI/ML
NLP
Machine Learning
Apply
In office • 5+ years exp • Bachelor's Degree • Petaling Jaya
Python
Java
Java
Spring Boot
Spring Cloud
Databases
MySQL
PostgreSQL
Redis
Milvus
pgvector
ElasticSearch
AI/ML
LangGraph
LangChain
Model Context Protocol
Embeddings
Prompt Engineering
Function Calling
AI Agents
LLM
RAG
DevOps
Jenkins
GitLab
Apply
In office • Beijing
Python
AI/ML
LLM
RAG
SFT
PPO
GRPO
Apply
≈ $34k – $63k per year (Estimated) • Hybrid • Bachelor's Degree • Bengaluru
Python
SQL
Databases
MS SQL
Analytics
Power BI
ETL/ELT
SSIS
SSAS
Dimensional Modeling
Management
Jira
ServiceNow
Agile
Scrum
Apply
≈ $25k – $64k per year (Estimated) • In office • Shanghai
Python
C++
DevOps
eBPF
Apply
≈ $16k – $32k per year (Estimated) • In office • Saint Petersburg
SQL
AI/ML
AI Agents
Apply
≈ $67k – $164k per year (Estimated) • In office • Full-Time • 5+ years exp • Master's Degree • Donostia
Python
AI/ML
vLLM
Fine-tuning
Computer Vision
AI Agents
TensorRT
LLM
RAG
Machine Learning
DevOps
Git
Docker
GitHub
GitLab
Management
Agile
Apply
Hybrid • Full-Time • 2+ years exp • Bachelor's Degree • Madrid • Guadalajara
Python
DevOps
Terraform
CloudFormation
GitLab CI
CI/CD
Jenkins
AWS
Docker
Kubernetes
Apply
≈ $60k – $109k per year (Estimated) • In office • Full-Time • 5+ years exp • Donostia
DevOps
Kubernetes
Apply
In office • Full-Time • Madrid
DevOps
GCP
AWS
Apply
≈ $66k – $162k per year (Estimated) • In office • Full-Time • Donostia
Apply
AI Engineer 2 days ago
Hybrid • 3+ years exp • Zaragoza
Python
AI/ML
LangGraph
LangChain
LlamaIndex
Model Context Protocol
Embeddings
LLM
RAG
DevOps
Rest API
Docker
Linux
Apply
Hybrid • 3+ years exp • Bachelor's Degree • Zaragoza
Python
JavaScript
Node JS
Databases
RabbitMQ
ElasticSearch
Apache Kafka
AI/ML
Copilot
Claude Code
DevOps
Rest API
Terraform
Ansible
OpenShift
GitHub Actions
CircleCI
CloudFormation
Prometheus
Azure
CI/CD
ArgoCD
Jenkins
AWS
Docker
Kubernetes
Self-Healing
SLI/SLO/SLA
GitHub
TCP/IP
DNS
Apply
≈ $44k – $102k per year (Estimated) • In office • Full-Time • Bachelor's Degree • Zaragoza
DevOps
AWS
Apply
≈ $25k – $52k per year (Estimated) • In office • Full-Time • Zaragoza
Apply
≈ $22k – $46k per year (Estimated) • In office • Full-Time • Zaragoza
Apply
See all jobs
This is one of many
1,926,090 more open roles from verified company boards, updated every day.