Curated remote opportunities

Remote Machine Learning Engineer Jobs in Portugal 2026

21 remote jobs open to candidates in Portugal in Machine Learning Engineer. Updated daily.

Bjak
Applied ML Engineer Full-time ↘ +11 regions
LLM Prompt Engineering Communication Collaboration +12 AI Machine Learning Data Classification Accuracy Precision Training Python PyTorch JAX Experimentation Writing Problem Solving
  • United States, Singapore, Poland +8SpainPortugalSwedenGermanyIrelandChinaSwitzerlandSouth Korea
  • Oct 16, 2026

There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting.

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Cohere
Research Scientist (ML) Full-time ↘ +3 regions
AI Training LLMs +12 Infrastructure Microsoft Teams Reinforcement Learning RLHF Research Dynamics Engineering JAX PyTorch Communication Alignment Culture
  • Europe, United States, Canada (CA: ON · US: NY)
  • CA$295k – CA$535k/yr
  • Oct 14, 2026

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems.

Tether
AI Research Optimization +12 Finance Infrastructure Communications Education Fintech English Communication Algorithms Engineering Simulation Monitoring Scalability
  • Remote (Global)
  • Sep 28, 2026

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains.

Cohere
Machine Learning Engineer Full-time ↘ +3 regions
AI Training Research +12 Engineering Machine Learning Microsoft Teams Infrastructure Python JAX PyTorch XLA Debugging Profiling Kubernetes Alignment
  • Europe, Canada, United States (US: NY)
  • CA$250k – CA$535k/yr
  • Aug 13, 2026

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems.

Tether
Research Scientist (ML) Full-time ↘ +35 regions
AI Research Finance +12 Infrastructure Communications Education Fintech English Communication Architecture Optimization Algorithms Curation Alignment LLMs
  • United Kingdom, Argentina, Colombia +32BrazilUruguayIndiaBangladeshPakistanJapanVietnamTaiwanThailandSwitzerlandSpainUnited Arab EmiratesBulgariaCzech RepublicSerbiaDenmarkEstoniaGreeceGeorgiaHungaryIrelandMaltaNorwayNetherlandsPolandPortugalRomaniaSwedenBelgiumIsraelTurkeyCyprus
  • Aug 10, 2026

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains.

Bjak
Applied ML Engineer Full-time ↘ +9 regions
LLM Prompt Engineering Communication Collaboration +12 AI Machine Learning Data Classification Accuracy Precision Training Python PyTorch JAX Experimentation Writing Problem Solving
  • United States, Singapore, Poland +6SpainPortugalSwedenGermanyIrelandChina
  • Aug 4, 2026

There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting.

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Bjak
Machine Learning Engineer Full-time ↘ +18 regions
AI Insurance Investing +12 Microsoft Teams Make Operations LLMs Automation Onboarding KYC CRM Engineering Accuracy Compliance Strategic Thinking
  • Austria, Australia, China +15GermanyHong KongIndonesiaSouth KoreaNetherlandsPolandPhilippinesSingaporeSwedenThailandVietnamSpainIrelandPortugalUnited States
  • Jul 9, 2026

The original mission of BJAK is we believe people deserve smarter ways to plan, save and grow their money. This is the origin of our name. Started in 2019, we built the first mobile-first, insurance platform, enabling insurance to be accessible online by millions in the region.

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Bjak
Machine Learning Engineer Full-time ↘ +18 regions
AI Finance Insurance +12 Investing Microsoft Teams Make Automation CRM Onboarding Payments Operations Engineering LLMs APIs Monitoring
  • China, South Korea, Hong Kong +15PhilippinesNetherlandsVietnamIndonesiaThailandAustraliaSingaporeGermanyPolandSwedenUnited StatesSpainIrelandPortugalAustria
  • Jul 8, 2026

The original mission of BJAK is we believe people deserve smarter ways to plan, save and grow their money. This is the origin of our name. Started in 2019, we built the first mobile-first, insurance platform, enabling insurance to be accessible online by millions in the region.

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Euphoric Global
AI FAR Payroll +12 Analytics Communication Contracts Creativity Experimentation Machine Learning LLMs React JavaScript TypeScript Python FastAPI
  • Portugal
  • €110,000 – €140,000/yr
  • Jun 13, 2026

Euphoric builds AI-first employee benefits administration software for the world’s largest and most prestigious employers. Born out of Peppy Health — a fast-growing, category-defining Series B startup — we spun out in May 2025 to tackle a far bigger opportunity.

Kraken
Machine Learning Engineer Full-time ↻ Reposted ↘ +21 regions
AI Infrastructure Finance +12 Culture Institutions Combine Machine Learning Rust MLOps Monitoring Observability Programming Engineering Optimization Collaboration
  • United Kingdom, Brazil, Ireland +18PeruCosta RicaLatviaArgentinaRomaniaCyprusPortugalSloveniaSouth AfricaCzech RepublicPanamaEstoniaCanadaHungaryMexicoPolandSpainBulgaria
  • Jun 2, 2026

Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…

Tether
Research Scientist (ML) Full-time ↘ +35 regions
AI Research Quantization +12 Finance Infrastructure Communications Education Fintech English Communication Algorithms Engineering Simulation Monitoring Scalability
  • United Kingdom, Argentina, Colombia +32BrazilUruguayIndiaBangladeshPakistanJapanVietnamTaiwanThailandSwitzerlandSpainUnited Arab EmiratesBulgariaCzech RepublicSerbiaDenmarkEstoniaGreeceGeorgiaHungaryIrelandMaltaNorwayNetherlandsPolandPortugalRomaniaSwedenBelgiumIsraelTurkeyCyprus
  • May 19, 2026

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains.

Tether
Research Scientist (ML) Full-time ↘ +35 regions
AI Research Finance +12 Infrastructure Communications Education Fintech English Communication Training Curation Optimization Engineering Fine-Tuning Distillation
  • United Kingdom, Argentina, Colombia +32BrazilUruguayIndiaBangladeshPakistanJapanVietnamTaiwanThailandSwitzerlandSpainUnited Arab EmiratesBulgariaCzech RepublicSerbiaDenmarkEstoniaGreeceGeorgiaHungaryIrelandMaltaNorwayNetherlandsPolandPortugalRomaniaSwedenBelgiumIsraelTurkeyCyprus
  • May 19, 2026

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains.

Tether
Research Scientist (ML) Full-time ↘ +35 regions
AI Research Finance +12 Infrastructure Communications Education Fintech English Communication Decision Making Algorithms Reasoning Training Reinforcement Learning Modeling
  • United Kingdom, Argentina, Colombia +32BrazilUruguayIndiaBangladeshPakistanJapanVietnamTaiwanThailandSwitzerlandSpainUnited Arab EmiratesBulgariaCzech RepublicSerbiaDenmarkEstoniaGreeceGeorgiaHungaryIrelandMaltaNorwayNetherlandsPolandPortugalRomaniaSwedenBelgiumIsraelTurkeyCyprus
  • May 19, 2026

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains.

Tether
Research Scientist (ML) Full-time ↘ +35 regions
AI Research Finance +12 Infrastructure Communications Education Fintech English Communication Testing Algorithms Training Reasoning Engineering Calibration
  • United Kingdom, Argentina, Colombia +32BrazilUruguayIndiaBangladeshPakistanJapanVietnamTaiwanThailandSwitzerlandSpainUnited Arab EmiratesBulgariaCzech RepublicSerbiaDenmarkEstoniaGreeceGeorgiaHungaryIrelandMaltaNorwayNetherlandsPolandPortugalRomaniaSwedenBelgiumIsraelTurkeyCyprus
  • May 19, 2026

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains.

Cohere
Machine Learning Engineer Intern ↘ +4 regions
AI Training Research +12 Recruiting MATCH Microsoft Teams Python Machine Learning TensorFlow JAX XLA Transformers Communication Problem Solving Natural Language Processing
  • Canada, Europe, United States +1United Kingdom (US: CA)
  • May 13, 2026

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems.

Kraken
Machine Learning Engineer Full-time ↘ +22 regions
AI Infrastructure Finance +12 Culture Institutions Training Experimentation Engineering Leadership Operations Observability Planning Machine Learning Microsoft Teams Make
  • United Kingdom, Brazil, Ireland +19PeruCosta RicaLatviaArgentinaRomaniaCyprusPortugalSloveniaLithuaniaSouth AfricaCzech RepublicPanamaEstoniaCanadaHungaryMexicoPolandSpainBulgaria
  • May 7, 2026

Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open,…

Tether
Machine Learning Engineer Full-time ↘ +29 regions
AI Finance Infrastructure +12 Communications Education Fintech English Communication C++ Engineering Microsoft Teams REST API Training Research Programming
  • Colombia, Argentina, Uruguay +26IndiaPakistanVietnamUnited KingdomSwitzerlandSpainUnited Arab EmiratesBulgariaCzech RepublicSerbiaDenmarkEstoniaFinlandGreeceCroatiaGeorgiaIrelandItalyNorwayNetherlandsPolandPortugalRomaniaSwedenBelgiumIsrael
  • Mar 11, 2026

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains.

Tether
Machine Learning Engineer Full-time ↘ +60 regions
Research Finance AI +12 Infrastructure Communications Education Fintech English Communication Organization Training Collaboration Open Source Fine-Tuning Microsoft Teams
  • United Kingdom, Netherlands, Argentina +57GreeceIndiaBangladeshSpainBelizeColombiaBolivia Plurinational State OfBrazilBelgiumEgyptSwitzerlandChileItalyCosta RicaCroatiaCzech RepublicDenmarkDominican RepublicUnited Arab EmiratesIrelandEcuadorEthiopiaFinlandGhanaGuatemalaIndonesiaIsraelMalaysiaMaltaPhilippinesMexicoUruguayKenyaNepalNew ZealandNicaraguaNigeriaNorwayPakistanPanamaPeruPolandPortugalMoroccoRomaniaEl SalvadorSaudi ArabiaSerbiaBulgariaSri LankaSwedenTaiwanEstoniaGeorgiaThailandVietnamArmenia (IN: DL)
  • Nov 27, 2025

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains.

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One email per week, 5 hand-picked roles.