freelance English-speaking jobs in Valongo

Leads People Services team in Portugal, ensuring efficient and effective delivery of People&Culture operational processes. Manages the hire-to-retire process, including payroll, benefits, and legal compliance. Requires experience in payroll management, labor legislation, and SAP systems.

Provide phone, email, and online support to healthcare professionals using a health platform. Train users on platform features and answer product questions.

HR Administrator to support employee life cycle processes including recruitment, onboarding, and benefits administration. Responsible for data accuracy in Workday, responding to employee inquiries, and managing HR documentation. Requires 2+ years of HR experience and proficiency with Microsoft Suite and HRIS systems.

Senior Developer needed for a national project. Responsibilities include analyzing legacy applications, implementing code in VueJS, Java, and related technologies, and maintaining and troubleshooting code. Requires 3+ years of experience as a Frontend Developer using VueJS, HTML, CSS, and JavaScript, along with knowledge of SOA programming, RESTful APIs, and development tools. Fluency in English and Portuguese is required.

Designs conversational flows and UX for AI agents, mapping dialogue, writing engaging messages, and analyzing data to improve user experience.

Provides support and guidance in the adaptation and implementation of standards across the dealer and workshop network. Conducts on-site audits and offers support throughout the audit process. Delivers training to the dealer network and translates manuals. Resolves questions and prepares reports. Collaborates on consulting projects.

Java Developer with 5+ years of experience in Spring Boot, AWS, Kubernetes, and Terraform. Must have fluency in English and Portuguese (B2 level). Experience with observability tools (Grafana, Prometheus, IBM Instana) and distributed systems is preferred.

Teacher of Economics and Business to deliver engaging instruction in IB Business Management and Economics, aligned with the IB Diploma Programme and other international curricula.

As an IT Ops / DevOps Engineer, you will ensure production readiness, infrastructure reliability, and continuous improvement within an Agile and DevOps ecosystem. You will participate in defining technical and infrastructure solutions, integrate production, security, and operational requirements, and support development teams. You will also ensure availability and usability of production environments, implement monitoring and supervision, and contribute to continuous improvement initiatives.

Experienced Machine Learning Engineer to join a team developing software primarily in Python for data scientists. The team creates and maintains packages that support ML engineering projects and works closely with the model building team. Requires experience with algorithms, data structures, performance optimization, and software development best practices. Familiarity with DNN libraries (PyTorch, TensorFlow, Flux) and machine learning processes is essential.

Hira Talent seeks a Talent Sourcer to identify, engage, and qualify top talent across Europe. You will source candidates via LinkedIn, job boards, and social media, pre-screen profiles, and build candidate pipelines. Strong written communication, tech savviness, and a target-driven mindset are essential.

The QEHS Technician supports the implementation and monitoring of health, safety, environmental, and quality programs at the Porto site. Ensures compliance with regulations and standards, promotes safety culture, and contributes to environmental sustainability.

Senior Software Architect needed for a hybrid role in Lisbon. Requires 5+ years of experience in software development and architecture design, strong understanding of cloud-native apps, AWS, microservices, and SOA. Expertise in Java, Python, or C#, excellent communication skills, and proven ability to analyze systems and suggest solutions. Fluent English required.

Technical Sales Engineer to support pre-sales, customer onboarding, and solution scoping for power grid and renewable energy solutions. Requires strong communication, technical understanding of power systems, and experience explaining complex concepts to clients.

Senior QA Analyst to lead testing and validation of REST APIs powering financial, payment, and investment operations. Validate business logic, edge cases, error handling, and complex flows. Collaborate with backend engineers on design and release.

IT Specialist to manage and integrate Office 365 solutions, Linux and Microsoft environments, and VDI platforms. Requires 2+ years of experience in similar roles with expertise in Windows and Linux administration, Office 365, Active Directory, Exchange, and VMware/Omnissa.

Senior AI Engineer to design, develop, and deliver Generative AI solutions focused on Large Language Models (LLMs). Requires 4+ years of experience in AI/ML, Python, and cloud platforms.

Senior OutSystems engineer to design, develop, and implement scalable applications. Collaborate with teams, create technical specifications, and integrate with external systems. Must have Associate Developer (ODC) certification.

Design and evaluate structured test scenarios for LLM-based agents. Define gold-standard behavior and scoring logic to assess agent performance. Analyze agent logs and decision paths to identify areas for improvement.

Drive revenue growth by prospecting, acquiring, and managing advertising clients across digital platforms. Lead the full sales cycle, from identifying prospects to onboarding new accounts.