ruby English-speaking jobs in Matosinhos

Evaluates health-related prompts, making judgments based on guidelines to support machine learning. Provides feedback on AI model output, focusing on areas like helpfulness, factuality, and cultural appropriateness. Documents issues and collaborates with team members. Requires native German fluency and strong analytical skills.

Linux Infrastructure Engineer to support and evolve a global trading infrastructure. Ensure high availability, low latency, and optimal performance. Strong experience in Linux system administration, infrastructure automation, and low-latency environments required.

Serves as a business and customer voice, shaping the Web and E-commerce experience. Translates business requirements into technical designs and user stories. Analyzes system behavior, data flows, and platform interactions.

Senior AI Consultant to design, develop, and implement AI solutions for clients. Requires 5+ years of experience, 2+ years with Microsoft BI Full-Stack, and Fabric knowledge. Proven ability to analyze requirements, manage projects, and advise clients on AI solutions.

Scientist to join the Discovery & Engineering Unit at our South Cambridgeshire site. Significant experience in SPR and Protein Sciences with a good understanding of Biologics drug discovery and display technologies. Responsibilities include planning and executing experiments, data analysis, and training other team members. PhD (or equivalent industry experience) in Antibody Discovery, Molecular Biology, Biotechnology, Immunology or a related field. Additional 3+ years post-PhD hands-on experience in antibody drug discovery. In-depth understanding and practical research experience of using protein structure insights to guide protein engineering campaigns. Practical experience in antibody display technologies (e.g. phage/mammalian display). Experience in additional biochemical assays. Molecular biology and cell culture experience. Excellent data analysis, interpretation and problem-solving skills. Influencing skills to shape project decisions and direction. Ability to plan time and prioritize work. Maintain clear written records in a timely manner. Ability to present and communicate effectively to internal and external stakeholders. Strong interpersonal skills with the ability and desire to build strong collaborative working relationships.

Freelance Creative Designer needed to develop marketing materials for a technology company specializing in secure identity solutions. Responsibilities include designing brochures, website visuals, presentations, and social media content. Must have strong Adobe Creative Suite skills and experience translating technical information into engaging visuals.

DevOps engineer to design, support, and troubleshoot complex infrastructure utilizing Infrastructure as Code (IAC). Experience with Kubernetes, Docker, and cloud technologies (GCP) is required.

QA Engineer with 2+ years of experience in mobile testing, proficient in Espresso and Kotlin, fluent in English (B2 level). Remote position based in Portugal.

Design and implement Salesforce Experience Cloud solutions to enhance customer engagement. Customize and deploy tailored portals, collaborating with cross-functional teams. Provide expert guidance on best practices for innovative, scalable, and secure platforms.

Senior Accountant responsible for preparing accounting entries, supporting month-end and year-end close processes, and participating in audits. Develops financial documentation and provides financial information to management. Requires a university degree in a related field, 4+ years of experience, fluency in English, and experience with complex multi-national accounting frameworks.

Buyer / Contracting Manager needed for a Portuguese-based, home-worker position. The role focuses on supplier selection, cost analysis, negotiation, and ensuring supplier performance aligns with company goals. Strong negotiation skills and experience in the travel industry are required.

Senior Frontend Engineer (Angular & Microfrontends) to lead development of scalable, user-centric web applications. Requires 5+ years experience in advanced web frontend development, expertise in Angular 19+, TypeScript, and SCSS, and a deep understanding of microfrontend architecture.

Junior Marketing Business Analyst will support data & reporting for the Customer Acquisition department, partnering with marketing teams to set strategy based on analytics. Collaborate with Product and Tech to ensure alignment of data & marketing initiatives.

Senior Integration Engineer needed for a challenging project in Lisbon (hybrid 2 days onsite). Design, develop, and implement complex integration solutions using MuleSoft. Collaborate with teams to ensure seamless system integration. Analyze business requirements and translate them into technical solutions. Minimum 3 years of experience in integration engineering with MuleSoft required. Fluency in English is mandatory.

iCapital seeks a Compliance Analyst/Associate to review and approve investor AML/KYC documentation. Responsibilities include AML screening, third-party reliance testing, and assisting with compliance tasks.

Leads and manages a team of researchers in the design, planning, and execution of R&D projects. Develops and implements research strategies to meet company goals. Ensures timely completion of projects while maintaining scientific rigor. Collaborates with cross-functional teams and mentors team members.

Talent Acquisition Specialist to manage the full recruitment cycle for scientific, technical, and corporate roles. Will source candidates, screen applications, coordinate interviews, and ensure a positive candidate experience. Requires 1.5-3 years of recruitment experience, strong sourcing skills, and fluency in English and Portuguese.

Supervises daily maintenance, safety, and technical services across units, ensuring legal compliance and accurate CMMS documentation. Manages internal technicians and external service providers, prioritizing interventions and allocating resources. Implements and monitors the preventive maintenance plan, analyzes work orders, and reports on performance indicators. Collaborates on continuous improvement initiatives and ensures compliance with safety regulations.

Senior Flutter Developer needed for a greenfield project building a user-facing platform for shipment and container management. Responsibilities include designing, developing, and maintaining a scalable application, ensuring seamless integration with the back-end, and optimizing performance.

Volunteer testers needed for Askeal, an AI assistant designed to support cybersecurity operations. Test Askeal in real operational contexts such as threat intelligence gathering, security analysis, and incident response.