react English-speaking jobs in Espinho

Manages and shapes demand for all SKUs and network centers, using statistical models and commercial insights to create a consensus forecast. Provides support to the commercial area in estimating the impact of promotions and other activities. Participates in S&OP and scenario planning processes.

Lead a team of Customer Service Specialists, ensuring high standards in customer engagement and service delivery. Manage team performance, implement best practices, and collaborate with supporting functions for process improvements.

Manage and optimize TikTok campaigns across multiple EU markets. Develop and execute creative strategies, conduct testing, and analyze performance data. Proven track record of scaling TikTok Ads budgets profitably required.

Customer Advisor will respond to customer inquiries via phone, email, and chat, resolving issues and assisting with travel arrangements. Must be fluent in French and English and have at least 2 years of customer service experience, preferably in the travel industry.

Accounts Payable Specialist will analyze supplier documents, reconcile accounts, and monitor outsourcing contracts. Requires a bachelor's or master's degree in a financial field, accounting/taxation experience, and proficiency in Excel and English.

Supports Relationship Managers in fulfilling member requests, focusing on booking execution and documentation. Assists with researching luxury objects and experiences, comparing offers, and managing client accounts.

Provide technical support and sales assistance to Italian-speaking customers via phone, email, and chat. Resolve customer issues, achieve sales targets, and ensure high customer satisfaction. Native Italian and English proficiency required.

Lead a team developing AI-driven cybersecurity solutions for web hosting providers. Define direction and priorities for a security engineering team, build a high-performance team culture, and convert business goals into technical initiatives.

Design, build, and evolve data-driven solutions for industrial processes. Implement data pipelines, analytics, and agentic solutions. Collaborate with stakeholders and end users to translate business needs into technical solutions.

Manage a portfolio of websites, optimizing paid traffic campaigns and on-site experiences to maximize revenue. Deep experience in Google Ads and Meta Ads is required.

Full Stack Engineer Annotator assesses frontend and backend engineering datasets to ensure AI models accurately interpret full-stack workflows. Annotates application datasets, evaluates integration logic, and reviews UI interactions. Requires a Bachelor's degree and 3-5 years of experience as a Full Stack Developer with proficiency in modern frontend and backend technologies. Must hold a relevant certification.

Leads a team of security architects to design and evolve security roadmaps for cloud platforms, compute/storage/database/connectivity, and digital workplace ecosystems. Provides security assurance for major initiatives and manages relationships with technology vendors. Requires 10+ years in Information Security, including 5+ years in infrastructure or cloud security architecture roles.

Data Reporting Officer will create and modify reports using Power BI Desktop, Power BI Query, and DAX. The role involves collaborating with General Secretary business lines to identify reporting needs and automate report production. Responsibilities include producing regulatory reports and interacting with IT teams and stakeholders. Fluent English is required.

Sybilion seeks a Consultant to build and validate forecasting models for process industries. You will design forecasting approaches, operationalize models into decision workflows, and lead client Proof of Concepts. Must have 3-7 years in consulting with a focus on modeling and strong Python skills.

Designs and champions scalable cloud architectures across Azure and AWS. Defines and executes a cloud strategy and lifecycle aligned with business goals. Acts as a trusted advisor, helping teams design secure, compliant cloud solutions. Establishes and operates cloud governance, policies, and controls. Ensures cloud environments comply with company policies. Manages cloud platform providers and supports partners. Coaches, mentors, and upskills teams to operate confidently in the cloud.

Evaluate a new AI personalization feature for Gemini, assessing the quality of model responses based on user's personal data and experiences.

As a Data Scientist - Forward Deployed Engineer, you will design predictive models, conduct experiments, and uncover insights to drive product innovation. You will define ontologies and knowledge graphs, collaborate with engineers and domain experts, and operationalize models at scale. You will focus on delivering and scaling AI solutions by embedding into client teams, deploying assets, and refining them.

Quality Assurance Analyst needed to evaluate and rate audio, video, text, and photo content. Must be a German native with C1 English proficiency and strong analytical and communication skills.

As a Digital Sales Manager, you will qualify leads, initiate contact with prospects, nurture relationships, and transfer qualified leads to the sales team. You will analyze lead quality, collaborate with marketing, and contribute to the digital sales strategy.

Customer Service Specialist needed for a global financial technology company. Provide customer support and collections assistance in Dutch (C2) and English (B2). Requires 1-2 years of customer service experience and strong communication and negotiation skills.