assistant English-speaking jobs in Barreiro

The University of Aveiro is seeking a First Stage Researcher (R1) for a Postdoctoral Fellowship in Condensed Matter Physics, Light-Matter Interaction, and Radiative Heat Transfer. Applicants must hold a PhD in Electrical Engineering, Physics, Applied Physics, Physical Engineering, or a related field. The selected researcher will develop analytical and numerical models for near-field radiative heat transfer and thermophotovoltaic (TPV) systems. The grant duration is 6 months, starting in July 2026, and may be renewed for additional periods.

ValGenesis seeks a Sales Operations Analyst to monitor and manage sales pipeline health, provide insights to sales managers, and enhance sales performance reporting. The role requires 3-5 years of experience in Sales Operations, Revenue Operations, Sales Analytics, or a related field. Strong analytical skills, proficiency in Microsoft Excel and SQL, and experience with CRM systems are essential.

Native Mobile Audio Developer to design, develop, and optimize audio systems for iOS and/or Android platforms. Experience with native audio APIs and real-time audio thread management required.

Provide customer support in German via phone, email, and chat for directory platform services. Assist users with platform navigation, account inquiries, and issue resolution. Must be fluent in German (C1-C2) and reside in Portugal (Braga or Aveiro area).

Data Specialist dedicated to Customer Service for a telecommunications operator. Analyzes operational data to optimize performance and customer satisfaction. Develops SQL queries, Power BI dashboards, and Python automation scripts. Collaborates with IT, Marketing, and Customer Service teams. Requires 3-5 years of experience and proficiency in SQL, PostgreSQL, Power BI, and Python.

Product Development Manager - Europe will drive technical support and product positioning across Europe, partnering with customers, R&D, and commercial leaders to identify new business opportunities and shape sustainable packaging solutions.

Regional Medical Advisor role focused on combating, preventing, and eradicating HIV and AIDS.

Financial Analyst (Accounts Payable) will manage purchase orders, coordinate with vendors, process invoices, and reconcile vendor statements. Requires a Bachelor's Degree in Finance/Accountancy/Business, fluency in English, and experience in Accounts Payable or Purchase to Pay.

Performance Marketing Specialist to own and manage paid acquisition campaigns, generate leads, and optimize for CPL/CAC. Experience with B2B lead generation, paid social, retargeting, and display campaigns required.

Black Cat Cinema seeks a Comms & Marketing Manager to lead communication across social media, newsletters, and marketing channels. The role involves creating engaging content, managing community interaction, and collaborating with creative teams. Fluency in Portuguese and English is required.

The Global Customer Capabilities & Innovation (GCCI) team seeks an experienced Senior Associate, Web Strategy & Operations to support the coordination and execution of cross-functional web programs. Responsibilities include portfolio prioritization, cross-functional coordination, program governance, website performance analysis, quality assurance, and continuous improvement.

Provide customer support in German or Dutch via phone, email, and chat for a well-known global brand. Assist customers with product-related questions, orders, and general inquiries. Collaborate with colleagues and internal departments to resolve cases.

SAP TM Developer with 5+ years of experience in designing, developing, and implementing complex global IT solutions. Expertise in SAP TM, ABAP programming, and TM frameworks. Strong analytical, communication, and collaboration skills.

Connectivity & Lead Network Engineer will drive network planning and optimization initiatives across 2G, 3G, 4G, and 5G networks. Responsibilities include leading optimization activities, validating technical performance of telecom solutions, and mentoring engineers.

Develop deep learning algorithms and computational geometry methods for a cloud-based cardiac intervention software. Build and optimize 3D segmentation, modeling, and measurement pipelines. Collaborate with product, engineering, clinical, regulatory, and quality teams.

Lead ICT risk management, control, monitoring, and oversight within NAM's 2nd Line of Defence. Develop and coordinate the ICT risk management agenda, including governance, policies, and operating model. Own and coordinate the 2nd LoD ICT risk assessment plan, monitoring risks to NAM's ICT environment and services. Provide oversight and challenge on ICT risk remediation plans and deliver management and board reporting on ICT risk.

Senior Accountant to support international entertainment and live events operations. Manage full-cycle accounting under Portuguese GAAP, ensure MIBC compliance, and handle tax and legal filings. Proven experience with Madeira structures and Portuguese tax/accounting rules required.

Develop and implement features for a large React-based Single Page Application. Refactor and improve existing components and systems. Ensure high code quality through testing and code reviews. Collaborate with UX/UI designers, product management, and DevOps teams.

Expert Ruby on Rails Engineers sought for impactful projects. Design, architect, and lead development of robust, scalable systems and APIs. Mentor engineers and drive performance optimization.

Business Analyst to join a long-term international project in the financial markets sector. Analyze business needs, translate them into functional requirements, and collaborate with development and testing teams.