Top Artificial Intelligence Jobs in Portugal

Nebius seeks a Senior ML Engineer for AI R&D focusing on applied research in reinforcement learning and agent training, requiring deep expertise in machine learning and software engineering.

The Product Manager will drive growth for an AI-powered writing assistant, focusing on product strategy, development, AI innovation, and performance optimization, while leading cross-functional teams.

Partner with Account Executives to present Arize's GenAI observability platform, lead technical demos and discovery, design and run PoCs, advise on GenAI/LLM best practices, handle technical objections, and build relationships with technical and business stakeholders across prospective customers.

Lead integration and automation of the DevOps platform (VCS, CI, artifact registry, AI Code Assistant) to improve developer experience. Build platform features with Python/Django, implement governance-as-code, automate SSDLC workflows, engage internal stakeholders, and standardize blueprints and patterns for ~1,500 developers.

Produce high-quality AI-generated visuals for performance marketing across paid channels and landing pages. Create photorealistic human and lifestyle imagery, iterate based on performance data, integrate AI outputs into design pipelines, and collaborate with marketers, copywriters, and video teams to deliver conversion-focused creative variants.

Lead end-to-end architecture for enterprise data, analytics, and AI in a Microsoft-first environment. Translate business needs into secure, scalable designs, prototype and guide delivery teams, ensure governance, security, and production readiness, and enable enterprise AI (Azure OpenAI, RAG) and BI (Power BI) solutions.

Build and operate distributed backend services and genomic reasoning engines that combine whole genome bioinformatics with AI. Design scalable data models, retrieval and vector search systems, and deterministic guardrails to ensure scientifically accurate, explainable genomic AI for production use.

Design and build production AI systems and distributed backend services that enable genomic reasoning, retrieval, and data platforms. Integrate genomic annotations and interpretation logic, architect high-performance data models and storage across PostgreSQL, DuckDB, Qdrant, Redis, and Spark. Ensure AI outputs are accurate, explainable, and grounded in genomic evidence while collaborating across engineering and bioinformatics teams.

Develop and optimize large neural-network tabular models in Python. Profile training and inference pipelines, improve memory efficiency, latency, and throughput. Implement performance-critical components in Rust (and optionally C++), ensure numerical stability and reproducibility, collaborate with researchers to productionize capabilities, and maintain tests and documentation.

Drive enterprise adoption of Talkdesk agentic AI: guide trials/POVs, define success metrics, quantify business value, lead technical demos, maintain AI content, advise on security/compliance, and collaborate with sales, product, and engineering to accelerate deployment and ACV growth.

Ship real open-source integrations and MCP servers to bring SearchApi to agent and automation frameworks. Create PRs, example apps, docs, and integration guides. Stay current with the agent ecosystem, pick high-leverage targets, and work independently to deliver production-ready integrations.

Create short- and long-form AI-generated educational and entertainment content for Instagram, TikTok, and YouTube. Rapidly test content hypotheses, analyze performance, research trends and competitors, and iterate on hooks, storytelling, and editing. Collaborate with the product team and continually experiment with AI image/video generation and editing tools.

Design, build and deploy AI-powered solutions (custom copilots, conversational agents, embedded AI) using Microsoft Copilot Studio, Power Automate and Azure AI Foundry. Integrate with Snowflake and enterprise systems, collaborate with stakeholders to define use cases, operationalise models, maintain reliability and governance, and evaluate emerging AI tools.

Lead technical efforts in AI integration for hospitality products, manage both C# and C++ systems, and mentor the engineering team.

Lead the development of computer vision systems for scene understanding, manage technologies, mentor engineers, and stay updated on AI trends.

As an AI Transformation Consultant, you will bridge business strategy and technical execution in AI initiatives, leading workshops, defining governance models, and ensuring alignment with regulatory requirements.

Seeking an experienced Senior Backend Developer to build Ruby on Rails services for chatbots, research Slack & MS Teams ecosystems, and enhance existing systems.

As part of the Advanced Analytics and AI team, you will develop and deploy machine learning models, engage with business functions to create AI opportunities, and support AI capability roadmaps, all while working in a collaborative international environment.

Lead architecture and build an automation and AI-native toolchain (fusing traditional automation with agentic workflows), mentor teams, drive cross-department adoption, standardize practices, and evolve IT operations toward infrastructure-as-code and platform-first models.

Design and scale GTM systems and AI-powered workflows across sales, marketing, and product. Build agents, integrate Salesforce/HubSpot, turn product and user data into growth signals, create lead-scoring/routing/onboarding flows, identify bottlenecks, run experiments with founders to drive measurable revenue impact.

Lead eCommerce and AI initiatives to improve customer journeys and frontend experiences. Translate business needs into technical solutions, drive chatbot and conversational commerce projects, evaluate AI opportunities, collaborate with architects and product teams, and manage small-to-medium IT projects from concept to rollout.

Lead research and engineering for large-scale LLM and multi-modal pre-training: design architectures and tokenizers, curate massive datasets, run distributed training on thousands of GPUs, debug performance bottlenecks, and improve cross-modal alignment and efficiency.

Freelance AI evaluator who tests and rates AI chatbots and language models in Portugal Portuguese via written and voice interactions. Complete structured tasks, submit ratings, write-ups, screenshots or recordings, and pass language and technical assessments. Work is task-based, remote, flexible hours, and paid hourly.

The role focuses on enhancing AI adoption among engineering teams by delivering training, improving workflows, and developing enablement tools, while collaborating closely with various roles across the organization.

As an AI Automations Engineer, you will design and build tooling for GTM, Operations, and Finance teams, automating processes and enhancing systems with a focus on AI.