Fresh remote Machine Learning Engineer jobs in Spain

$142,000 to $210,000 per year

Key requirements: 2 years of experience, Python, LLM APIs, Gradient-boosted decision trees, Evidence extraction pipelines, ML lifecycle tooling, Document processing, AI-powered developer tools, Model evaluation for tabular classification

Affirm

Affirm is a U.S.-based fintech company offering a buy now, pay later (BNPL) service that allows consumers to make purchases in installments, primarily targeting the retail sector with both B2C and B2B business models.

Remote policy: Affirm is a remote-first company, allowing employees to work from various locations within their country of employment, including Poland, where the majority of roles can be remote.

Senior NLP/LLM Engineer

1 day ago

Spain, United States, Israel, United Arab Emirates, Poland, Portugal, Malta, Serbia, Hong Kong, Japan, Thailand, Indonesia, Australia, Georgia, Armenia

$100,000 to $150,000 per year

Key requirements: LLM experience, SFT, RLHF, NLP expertise, Transformer models, Python proficiency, Model optimization, Evaluation methodologies, Cross-functional collaboration

Social Discovery Group

Social Discovery Group is a global tech conglomerate specializing in social discovery and dating platforms, headquartered remotely with teams across multiple countries, operating in the B2C and B2B sectors.

Remote policy: Social Discovery Group supports fully remote work for its international team and hires globally from various locations, including the USA, Cyprus, Malta, and many others, fostering a digital nomad culture.

Applied AI Engineer

3 days ago

Spain, Europe, Middle East

Key requirements: 3 years of experience, TypeScript, AI-native engineering, DevOps knowledge, Drive and curiosity, Structured independence, Growth mindset, Crypto, DeFi, or Web3 background

LI.FI

LI.FI is a blockchain technology B2B provider offering an API for seamless multi-chain DeFi trading, headquartered remotely and targeting traditional financial institutions and fintechs.

Senior AI Engineer

3 days ago

Key requirements: AI & LLM Technical Depth, Prompt engineering, Model selection and cost-performance trade-offs, Agentic architecture patterns, AI Safety & Risk Awareness, Systems Thinking & Diagnostic Rigour, Business System Expertise, End-to-End Ownership, Product Mindset

GitLab

GitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Staff AI Engineer - Notebooks

4 days ago

Spain, Germany, France, Ireland, Italy, Switzerland

Key requirements: 10 years of experience, AI/ML initiatives leadership, Model deployment, Product-driven AI/ML experience, Technical ownership of AI workflows, Mentoring engineering teams, Natural-language data analysis, Collaborative investigations, User-focused product direction

Datadog

Datadog is a New York City-based B2B SaaS provider specializing in observability and monitoring solutions for cloud-scale applications, serving a global market across various industries.

Remote policy: Datadog operates as a hybrid workplace, supporting remote work while valuing in-office collaboration. The company hires globally from various regions, including the U.S., Europe, and Asia, allowing for a diverse and inclusive team.

Senior AI Engineer (Clients) - Supernal

Key requirements: 4 years of experience, multi-turn conversation design, real-time constraints, voice agents, automated tests, agentic architectures, LLM orchestration, prototyping and production quality, elite debugging, client delivery ownership, clear communication in English

Infinity

Infinity is a no-code work management SaaS platform that specializes in project management and team collaboration, operating in the B2B sector.

Remote policy: Labrynth operates on a remote-first model, supporting fully remote work with flexible hours. The team collaborates primarily across Americas time zones and includes members from various regions globally.

Solutions Architect, Cloud Inference Services

11 days ago

Key requirements: 5 years of experience, NVIDIA NeMo Agent Toolkit, DNN inference, LLM architectures, agentic pipeline development, inference optimization, DevOps technologies, HPC systems

NVIDIA

NVIDIA Corporation is a Santa Clara-based technology company specializing in designing GPUs and AI solutions for gaming, professional visualization, and cloud services, operating in both B2B and B2C markets globally.

Remote policy: NVIDIA supports flexible remote work arrangements and hires from various regions globally, including the Americas, Europe, Asia, and the Middle East, with roles that may require collaboration across time zones.

Senior Research Engineer, OmniDreams and Alpasim

12 days ago

Key requirements: 8 years of experience, Neural rendering, World models, Diffusion/video generation, Neural reconstruction, Computer vision, Simulation, ML systems, Gaussian Splatting, Differentiable rendering, Real-time graphics, CUDA, Graphics APIs, GPU performance, ML inference optimization

NVIDIA

Machine Learning Research Engineer

13 days ago

$168,000 to $255,000 per year

Key requirements: Masters/PhD in AI or related field, History of publication at CVPR/NeurIPS/ICLR, Python proficiency, Scientific rigor and reproducibility, Passionate about computer vision, Pragmatic approach to utility, Experience optimizing models for edge hardware, Expertise in PyTorch

Roboflow

Roboflow is a distributed SaaS company specializing in computer vision tools for developers, enabling B2B solutions across various industries globally.

Remote policy: Roboflow supports a flexible remote work environment, with team members distributed across the US and Europe. We welcome applicants from various regions and provide opportunities to work from home, co-working spaces, or our hubs.

ML / AI Data Engineer (Contract)

15 days ago

Contract

Key requirements: 5 years of experience, GPU-based environments, Large-scale data systems, Multimodal AI, Scalable data pipelines, Cloud platforms (AWS, Azure, GCP), Data processing frameworks (Spark, Ray, Kafka, Airflow), Fault-tolerant systems, High-throughput data ingestion, Python, Scala programming

Tech Holding

Tech Holding is a Los Angeles-based B2B consulting firm specializing in professional services and managed solutions for cloud transformation and technology integration across various industries.

Remote policy: Tech Holding supports remote work opportunities and hires from various regions globally, allowing flexibility for team members to work from different locations.

Machine Learning Engineer - Personalization, Horizon

19 days ago

Key requirements: Generative AI, Natural language processing, End-to-end production ML systems, LLM scale systems, Human feedback incorporation, DPO, KTO, Reinforcement fine-tuning, Modular architectures for ML frameworks, Apache Beam, Apache Spark, GCP, AWS

Spotify

Spotify is a Stockholm-based B2C digital music service specializing in streaming millions of songs, podcasts, and audiobooks for a global audience.

Remote policy: Spotify supports remote work and hires globally, with flexibility for employees to work from various locations, including the EMEA region.

AI Engineer (Full Remote)

21 days ago

Key requirements: 3 years of experience, Python, Traditional Machine Learning, Demand forecasting, Big Data, Generative AI, SQL, AWS, Docker, Kubernetes, Apache Superset, Data visualization

Everfield

Everfield is a London-based B2B private equity firm specializing in acquiring and growing vertical SaaS businesses across Europe.

Machine Learning & Game Tech Architect

22 days ago

37,000 to 50,900 PLN per month

Key requirements: 7 years of experience, Hybrid game and ML systems architecture, TensorFlow, PyTorch, Keras, C++, Rust, GO, Python, Reinforcement Learning, High-performance computing, Game engines, Real-time simulations

CD PROJEKT RED

CD PROJEKT RED is a Warsaw-based video game developer specializing in story-driven RPGs, including The Witcher series and Cyberpunk 2077, operating primarily in the B2C gaming industry with a global target market.

Remote policy: CD PROJEKT RED offers flexible remote work options, allowing employees to choose between remote-first or office-first arrangements, with a preference for locations within 3 hours of GMT+3. The company hires globally, with offices in Poland and North America.

AI Engineer

22 days ago

Key requirements: 2 years of experience, Python, Machine Learning, Generative AI, LLM applications, RAG pipelines, pgvector, FAISS, Pinecone, Weaviate, MCP, API development, Azure, AWS, GCP, embeddings, semantic search, information retrieval

ACCESA

Accesa is a Cluj-Napoca-based technology company specializing in digital solutions for Retail, Manufacturing, Finance, and Banking, operating in a B2B model.

Remote policy: Accesa supports flexible work arrangements and hires from various locations, including team members based in Romania, with an emphasis on work-life fusion.

Research Engineer, Machine Learning (RL Velocity)

22 days ago

$500,000 to $850,000 per year

Key requirements: ML infrastructure, Distributed systems, Large-scale distributed training, JAX, PyTorch, Performance optimization, Research tooling

Anthropic

Anthropic is a San Francisco-based AI research company specializing in large language models and AI safety, operating primarily as a B2B provider while also serving individual consumers.

Remote policy: Anthropic supports a hybrid work model, requiring staff to be in the office at least 25% of the time, while also allowing for remote work from various locations.

ML Engineer -Signal Processing / ASR

26 days ago

Key requirements: 5 years of experience, ASR deployment, Signal processing, Production ML systems, Python engineering, PyTorch, TensorFlow, Docker, Kubernetes, Real-world audio handling, Model evaluation, Streaming inference

Fresh Prints

Fresh Prints is a custom apparel company based in Indiana, specializing in collegiate merchandise for Greek life and student organizations, operating as a B2C business in the collegiate market.

Remote policy: Fresh Prints supports remote work opportunities, with team members working from home across various regions, including the U.S. Time zone alignment is primarily in EST (UTC-5).

ML Ops Engineer (EMEA Remote)

28 days ago