9422 English-speaking jobs in Lisbon

Tether seeks highly motivated MSc or PhD interns to research and improve open-source video and multimodal video generation foundation models. Interns will focus on areas such as pre-training, fine-tuning, inference, architecture design, or evaluation.

Lead a cross-functional pod to deploy machine learning models to edge devices using frameworks like llama.cpp and ggml. Collaborate with researchers to transition models from research to production environments. Integrate AI features into existing products and manage a team of middleware, foundation, QA, and documentation engineers.

Experienced AI infrastructure Engineers will design and implement robust, scalable pipelines for massive data workloads. Responsibilities include building and scaling data infrastructure optimized for video and multimodal content processing, designing preprocessing algorithms, and building automated acquisition pipelines for video datasets.

Data Engineering Intern will design, build, and maintain data infrastructure and pipelines. Collaborate with teams to understand business requirements and deliver data solutions. Assist in building, testing, and maintaining data pipelines and integrations. Contribute to data architecture documentation. Must have a degree in Computer Science, Data Engineering, Software Engineering, or equivalent experience and basic programming skills (preferably Python).

Provides support in designing and implementing cybersecurity strategies to protect systems and ensure seamless operation. Develops and enforces security policies, monitors network activity, and collaborates with development teams.

You will own the inference backbone behind QVAC's local AI stack, focusing on the C++ systems layer for fast, reliable, and predictable model execution on user hardware. You will define and evolve core abstractions for inference features, ensuring performance and maintainability. This role involves porting and enhancing inference engines like llama.cpp and ONNX for efficient edge device operation.

Senior Data & Analytics Engineer will design, develop, and maintain data pipelines and architectures. Responsibilities include creating data models, databases, and data warehouses, optimizing data systems, and implementing data governance measures. The role requires a Master's degree in a relevant field, strong SQL skills, and experience with data modeling, ETL processes, and data warehousing. Familiarity with Power BI and Azure is a plus.

Create short films and videos using AI-driven tools. Edit and refine AI-generated content to produce high-quality visuals. Collaborate with the marketing team to develop video concepts and ensure brand alignment.

Drive innovation in reinforcement learning approaches for advanced AI models. Develop, implement, and optimize reinforcement learning algorithms to enhance decision-making and performance.

Tether seeks a Technical Architect to design and implement scalable architectures for various systems (apps, SDKs, SaaS platforms). The role requires deep technical understanding across the stack and the ability to translate that knowledge into maintainable and high-performing architectures. Responsibilities include collaborating with engineers, product managers, and stakeholders to translate requirements into architectures, documenting existing architectures, and mentoring engineering teams.

Senior Full-Stack Developer to build and improve a SaaS platform for insurance brokers and financial institutions. Responsibilities include designing and building .NET backend services, developing front-end applications (React/Angular), integrating REST APIs, and working with Azure cloud infrastructure. Requires 5+ years of software development experience, strong backend development using C#/.NET, and experience building front-end applications with React, Angular, or similar.

Hiscox London Market is seeking a Quality Engineer to ensure the quality of web applications, APIs, and data platforms. The role involves working closely with software engineers and product owners to define, test, and document application functionality. Responsibilities include designing and executing test cases, analyzing requirements, collaborating with developers, and staying up-to-date on test documentation. The ideal candidate has proven experience in manual testing, understanding of testing methodologies, and experience with test management and reporting tools.

Senior Project Manager with 5+ years of experience in project management and IT infrastructure. Expertise in Digital Platforms or Telecom projects. Strong communication, teamwork, and time management skills. PMP certification is a plus. English proficiency (B2). Hybrid role (3 days on-site in Lisbon).

We are seeking ambitious entrepreneurs to build and scale startups in fields such as Longevity. You will own your startup, receive personalized development support, and benefit from access to a network of top founders, investors, and talent.

Coordinate project workflows, manage client engagements, and support project execution across multiple teams. Ensure deadlines are met, assist with risk management, and contribute to billing and operational efficiency.

Design and develop custom SAP Fiori applications using SAPUI5 and OData services. Enhance and customize standard SAP Fiori applications to meet business requirements. Ensure adherence to clean core principles. Collaborate with ABAP developers and business stakeholders.

Senior People Business Partner to advise team leads and stakeholders on all employee lifecycle matters. Translate business needs into actionable HR recommendations and contribute to company-wide initiatives.

Senior Motion Designer to create brand animations and videos for marketing, web, events, and product experiences. Will define and build Fireblocks' brand motion system, translate complex technology into clear visuals, and collaborate with cross-functional teams. Requires 7+ years of experience, expertise in After Effects and Premiere Pro, and a portfolio.

Research Grant opportunity in Chemistry at CICECO – Aveiro Institute of Materials. Successful candidate will develop novel dual functional materials for CO2 adsorption and conversion in biogas upgrading.

ServiceDesk Engineer L2 will handle and troubleshoot requests, analyze logs, and investigate product bugs. Responsibilities include standardizing solutions, preparing instructions, and automating tasks. Requires strong troubleshooting, problem-solving, and process management skills. Experience with Jira, Datadog, Grafana, Kibana, and SQL is needed.