assistant English-speaking jobs in Barreiro

German & English Customer Retention Specialist needed to drive customer loyalty, reduce churn, and maximize customer lifetime value. Engage with German-speaking customers via phone, email, and chat, promoting platform features and upselling services.

Lead and develop a Customer Support team, ensuring KPI delivery through coaching, queue oversight, and cross-functional collaboration. Own real-time operations, drive team performance against KPIs, and support hiring, onboarding, and training.

Provides Level 1 technical support to Hoist Network customers via phone, email, tickets, and other methods. Resolves customer issues, analyzes data to determine root causes, and escalates complex issues to higher levels. Must have excellent customer service and communication skills, as well as a basic technical background in TCP/IP and networks. Fluency in English and German is required.

German Quality Specialist/Content Creator needed for a project focused on data analysis, content creation, and call monitoring. Responsibilities include assessing audits, creating training materials, monitoring CSR performance, and reporting on program changes. Requires native or proficient German, advanced English, strong data analysis skills, and experience in call center quality assurance. Must have at least 12 months of call center experience, preferably as a Product Specialist/Mentor.

The Chief Solution Architect (CSA) leads the definition and execution of the Client Solutions platform's architecture, ensuring alignment with business objectives and enterprise standards. The CSA collaborates with stakeholders, business partners, and Digital Global Unit teams, contributing to governance forums and participating in the design of complex initiatives. The role involves managing a team of Solution Architects, coordinating architectural practices, and supporting broader organizational processes.

Quality Analyst needed to evaluate and rate various content types (audio, video, text, photos) according to defined policies and guidelines. Responsibilities include assessing Ads content for accuracy, relevance, and alignment with policies, and ensuring adherence to client guidelines. Must be a French native with English proficiency (B2/C1) and strong written and verbal communication skills.

Itaú BBA Europe seeks undergraduate/Masters students in Management, Finance, Economics, Data Science, or related fields for its 2026 Summer Intern Program. Interns will gain hands-on experience in a dynamic financial environment working on real projects.

Manage security operations, including incident response, policy development, and vendor relationships. Requires a Master's degree, 3-5 years of SOC experience, and expertise in EDR, Zscaler, and Palo Alto firewalls.

Subject Matter Expert needed for remote, contract role (15-20 hours/week). Develop AI training problems, evaluate model outputs, and collaborate with research teams. Must have STEM PhD from a US, UK, Canadian, or European university.

Junior O2C Specialist will process customer orders, generate invoices, perform cash application, and monitor AR aging reports. Responsibilities include supporting customer query resolution, assisting with reconciliations, and maintaining customer master data.

Customer Success Specialist provides high-quality support to VIP and high-value customers via chat, email, and phone. Collaborates with retention and growth teams to execute engagement initiatives and improve user lifecycle performance. Drives user satisfaction and conversion through tailored communication and engagement strategies.

Senior Game Designer to lead gameplay development for Aquapark.io. Extensive experience in F2P mobile games, core gameplay systems, and Unity required. Proven track record of designing engaging and innovative mobile games.

Clinical Trial Support Specialist to provide procedural case support, manage device logistics, and collect study data across international sites.

Design, build, and maintain efficient code for a high-volume transaction-oriented production environment. Develop interfaces between components and ensure application performance, quality, and responsiveness.

Senior iOS Engineer to support the growth of the Speechify iOS app and work on new projects. Lead engineering and product decisions, actively ship production code, and participate in product discussions. Experience with Swift, SwiftUI, multithreading, CI/CD, and SOLID principles is required.

Lead and accelerate Critical Software's growth in the Energy domain. Define and drive a business development strategy, build relationships with key stakeholders, and shape long-term client growth initiatives.

Investment Manager will develop and implement portfolio strategies, manage fixed income portfolios, and mitigate inherent risks. Requires 5+ years of experience as a portfolio manager or trader, understanding of financial maths and capital market products, and fluency in English.

Umbraco Specialist with 5+ years of experience needed for application management, maintenance, and evolution. Solid .NET development skills required. Experience with Umbraco upgrades/migrations is valued.

PowerBuilder Developer needed for software development in the automotive industry. Develop, maintain, and optimize PowerBuilder applications, manage databases, and collaborate on .NET component development.

Provide customer support via phone, email, and web chat in Polish and English. Guide users through the PCI-DSS compliance process and assist with platform navigation.