If you work in data or AI and are weighing a move to Spain, these 5 open roles are listed with visa sponsorship on The Stack. Here's what each one offers:
Senior ML Engineer (LLM) at Multiverse Computing (Zaragoza): compress large language models with quantum-inspired tensor networks, then ship them.
Data Analyst, Everyday Banking at N26 (Barcelona): be the go-to data person for Cards and Payments and run the A/B tests behind them.
Data Scientist at ICF (Madrid): use statistics, ML and LLMs to answer public policy questions on energy, aviation and health.
Senior Data Engineer at Socialpoint (Barcelona): build the data marts and AI pipelines behind mobile games like Dragon City.
Staff Data Scientist at Monzo (Barcelona or London): set data science direction for a whole domain at the bank, for £124,400–£165,000.
Freshness check: we opened every employer posting on 26 October 2026, and all 5 were live. Postings close without warning, so the sooner you apply, the better.
Design new ways to compress large language models with quantum-inspired tensor networks, then fine-tune, benchmark and ship them, plus RAG and agent apps for clients.
Perfect for ML engineers who know transformers from the inside and would rather make models smaller and faster than just call an API.
Key skills: Python and PyTorch; HuggingFace Transformers, Accelerate and Datasets; GPU architectures; AWS and Docker. vLLM, TensorRT and HPC clusters are a plus.
At a glance: Zaragoza · hybrid · 5+ years with deep learning and transformers · posted 19 October (7 days ago) · no salary figure; the posting lists a variable performance bonus and a signing bonus · fluent English required
The Stack's take: Multiverse has posted 4 roles in Spain on The Stack in the last 90 days. The catch: the office is in Zaragoza, not Madrid or Barcelona, and visa sponsorship is offered "if applicable". Best for: an LLM engineer who wants to shrink models, not just prompt them.
Find out more: Senior Machine Learning Engineer (LLM) on The Stack
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Be the go-to data person for N26's Cards and Payments teams: set targets, run A/B tests, build the dashboards they check every week.
Perfect for product analysts who like owning a domain and teaching teams to answer their own questions.
Key skills: SQL; Python or R; statistics for experimental and observational data; A/B testing; Tableau, Metabase, Looker or Superset.
At a glance: Barcelona · work arrangement not stated (the posting offers a work-from-home budget) · 3+ years · posted 19 October (7 days ago) · no salary on the listing
The Stack's take: N26 is the busiest hirer here, with 36 roles in Spain on The Stack in the last 90 days, and this posting offers a relocation package with visa support. It asks for 3+ years, so it is not an entry-level role. Best for: a product analyst who thinks in experiments.
Find out more: Data Analyst, Everyday Banking on The Stack
Work with policy experts at a global consultancy to turn evidence into answers on energy, environment, aviation and health, using statistics, forecasting, ML and LLMs.
Perfect for data scientists who enjoy client conversations and want their models to inform public policy in the UK and EU.
Key skills: Python and SQL; regression, classification and forecasting; practical LLM use with output checking; version control and testing.
At a glance: Madrid · work arrangement not stated · no years of experience given · posted 19 October (7 days ago) · no salary on the listing
The Stack's take: One of just 2 ICF roles in Spain on The Stack in the last 90 days. Be aware that sponsorship is considered "case-by-case" and relocation support is not automatic, so ask early. Best for: a data scientist who likes consulting and messy real-world questions.
Find out more: Data Scientist on The Stack
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Build the cross-game data marts and AI pipelines behind Socialpoint's mobile games, such as Dragon City and Monster Legends, for its Central Analytics team.
Perfect for data engineers with an analytics-engineering streak who like writing SQL that other analysts depend on.
Key skills: Advanced SQL and large data warehouses; production Python; Airflow, Docker, S3 and CI/CD; some LLM or generative AI experience.
At a glance: Barcelona · hybrid, but you must live within commuting distance of the office · posted 13 October (13 days ago) · no salary on the listing · apply in English (free English and Spanish lessons)
The Stack's take: Airflow appears in only 6 Spanish listings on The Stack in the last 90 days, and this is one. Socialpoint posted the same description as a Senior Data Scientist role, so expect an analytics-engineering job. Best for: a data engineer who wants to work on games.
Find out more: Senior Data Engineer on The Stack
Lead data science for a large domain at Monzo, from Borrowing to Fincrime, setting how the bank measures, experiments and makes decisions.
Perfect for senior data scientists ready to set technical direction and coach others while staying hands-on in SQL and Python.
Key skills: SQL and Python; experimentation and causal inference; forecasting and optimisation; influencing senior leaders.
At a glance: Barcelona or London (or remote within the UK) · flexible hours · Staff level · posted 30 September (26 days ago) · £124,400–£165,000 plus performance-based incentive awards
The Stack's take: The only role here with a salary on the posting, and the range is in pounds for London or Barcelona. Expect a recruiter call, an initial call, a technical assessment and three final interviews. Best for: a senior data scientist ready to set direction for a whole domain.
Find out more: Staff Data Scientist on The Stack
Before you apply: the salary line that matters
Only Monzo's listing states a salary, so ask the others for the base figure early. Spain's highly qualified professional route (Ley 14/2013) has two versions. For the EU Blue Card, the contract or firm offer must pay at least €41,356.36 gross a year. That drops to €33,085.09 for hard-to-fill occupations in groups 1 and 2 of Spain's occupation classification, or if you earned your qualification in the 3 years before applying. The national highly qualified professional permit uses a single €41,356.36 threshold, with no reduced figure. Source: the June 2026 salary threshold update from the Unidad de Grandes Empresas at Spain's Ministry of Inclusion, Social Security and Migration (route overview).
How we picked these
We started from the 15 data and AI listings in Spain added to The Stack in the last 30 days, all marked as offering visa sponsorship, and kept one role per company. Then we opened each employer's posting. N26's Data Scientist role had already been taken down, so we featured its Data Analyst role instead. We left out Zynga's Senior Data Engineer listing because it repeats Socialpoint's posting word for word, and Hireroo's AI Engineer role because Hireroo is a recruitment agency hiring for a client it doesn't name. Everything in "At a glance" and "The Stack's take" comes from the employer's own posting or from counts of listings on The Stack.
Wrapping up
Start with the role that matches the stack you already use every day. New visa-sponsored jobs land on The Stack every morning, and the best data and AI ones land here.
Which country should we cover next for data and AI jobs: the Netherlands, Ireland or Portugal? Let us know.
