react English-speaking jobs in Espinho

Senior Data Scientist to design, build, and iterate on predictive and analytical models. Develop AI/ML models within a cloud environment, collaborating with Data Engineering and Analytics Engineering. Focus on model development, evaluation, and insight generation.

Leads a team of UX/UI Designers and UX Architects, managing team performance, budget, and recruitment. Actively participates in design activities, providing guidance and expertise on interaction design, prototyping, and mockups. Ensures team adherence to company processes and best practices while fostering continuous improvement within the UX team.

Junior Executive to drive growth and impact at ComparaJa, a company helping consumers save time and money. Responsibilities include leading teams, developing products, and amplifying brand presence. Must be highly ambitious, proactive, and possess strong communication and organizational skills. Native or near-native Portuguese proficiency required.

Project Manager needed for dynamic international client project. Requires expertise in change management, strong communication, leadership, and project management skills. Ability to design training and analyze project data is essential.

Automation Tester with 3+ years of experience in software quality assurance and test automation. Strong proficiency in UFT and Selenium required. Knowledge of Java, C#, or Python and fluency in French (B1 minimum) and English are also required.

Financial Controller Trainee to assist with data entry, reconciliations, and basic financial processing. Support monthly reporting, budget preparation, and forecast reviews. Requires a university degree in a relevant field, fluency in English, advanced Excel skills, and strong analytical abilities.

Experienced Payroll Manager needed to oversee end-to-end payroll operations for Portugal, ensuring accuracy, compliance, and timely processing. Manage payroll team, liaise with external providers, and ensure compliance with local legislation. Strong knowledge of Portuguese payroll legislation, tax, and social security required.

Research and Development Engineer to conduct research, synthesis, and characterization of graphene solutions for electromagnetic interference shielding. Develop graphene-based solutions tailored to market and customer needs. Write technical documentation.

KCS IT seeks a QA Engineer with +4 years of experience in Cypress and Playwright. The ideal candidate will have strong JavaScript/TypeScript skills, experience testing modern web applications, and familiarity with API testing and CI/CD tools.

Accountant required to manage general accounting activities in accordance with Italian accounting principles (OIC). Responsibilities include recording transactions, performing reconciliations, preparing financial statements, and collaborating with auditors. Fluent Italian and English required.

Data Engineer with expertise in AWS cloud environments. Proficiency in Python, SQL, Spark, and AWS services like Glue, Redshift, Athena, EMR, S3, and Lambda. Experience with ETL orchestration tools and containerization.

Design, build, and operate AI solutions end-to-end, including data preparation, model integration, evaluation, deployment, and monitoring. Translate business needs into working AI designs and collaborate with architects, platform engineers, and stakeholders. Contribute reusable AI assets and build with production discipline, ensuring testing, version control, CI/CD alignment, and performance/scalability considerations.

As an event engineer (Sound & Light) at ROBINSON, you'll set up and operate sound and lighting equipment for various events, including dance shows, performances, and beach parties. You'll collaborate with other teams to coordinate programs and ensure a memorable experience for guests.

Mathematics specialist fluent in Portuguese (Portugal) needed to train AI models. Expertise in algebra, calculus, number theory, and other mathematical fields required. Responsibilities include evaluating model performance, documenting errors, and suggesting improvements. Master's or PhD in mathematics or related field preferred.

Data Analyst with 7+ years of experience needed. Must have advanced Tableau or Power BI, strong SQL and Snowflake skills, and data modeling understanding. Ability to learn new BI tools is required.

Senior Cloud Engineer to ensure high availability and efficiency of OutSystems Cloud Platform. Develop tools and infrastructure for global scaling, deployment, monitoring, and management. Requires 7+ years software development/operations experience, 3+ years in cloud platforms (AWS, Azure, or hybrid), and expertise in DevOps, CI/CD, or SRE.

Full stack Engineer with 5+ years experience building JavaScript applications using ReactJS. Requires expertise in testing frameworks, build tools, and Node.js. Experience with Java or OOP languages, cloud environments (AWS), and fluency in English is needed. Remote work in Portugal with potential relocation.

Develop and manage sales of value-added ingredients to pharmaceutical and dietary supplement manufacturers in Portugal. Provide technical support to customers, develop sales targets, and analyze sales figures.

Support partner requests in B2B relationships, participate in onboarding sessions, and conduct Annual Business Reviews. Provide technical support for customer requests across Telecom, Web, and Cloud products.

As an Account Executive at Liminal, you will guide prospects through the sales process for the Link platform, focusing on digital identity, cybersecurity, and financial compliance solutions. You will manage the full sales cycle, from initial contact to contract closure, and deliver tailored presentations and demonstrations.