freelance English-speaking jobs in Valongo

Remote is seeking a Senior Brand Manager to develop and evolve the company's brand narrative, shape creative campaigns, and build brand awareness globally. This role requires 8+ years of experience in brand marketing, a strong understanding of AI's impact on creative development, and the ability to lead high-impact campaigns.

Sales Representative to promote products in General and Family Medicine, Neurology, Pulmonology, Allergology, and pharmacies. Requires 3+ years experience in these specialties and strong sales and negotiation skills.

Customs Specialist will issue import clearance instructions, manage the C88 document, and analyze import and export flows. Requires a degree in business, logistics, law, or customs, proficiency in MS Office, and fluency in English.

Senior Full Stack Engineer will design and build full-stack applications powering AI-driven workflows for enterprise users. Responsibilities include developing front-end interfaces, scalable backend services, and optimizing AI-powered UIs. Requires 7+ years of experience building production applications, proficiency in React, TypeScript, Node.js, and Python, and strong cloud infrastructure knowledge.

Supervises and coordinates production team, defines production plans and targets, ensures GMP and internal procedure compliance, and monitors performance indicators.

HCLTech seeks a Salesforce Service Cloud Developer to design, develop, and implement customized solutions within the Salesforce Service Cloud platform. Responsibilities include collaborating with stakeholders, customizing Salesforce applications, developing Apex code, and building Lightning components. The ideal candidate will have 3+ years of experience as a Salesforce Developer, including expertise in Salesforce configuration, Apex programming, and Lightning components, and possess a Salesforce Developer certification.

Art Director will lead the creative vision and execution of the marketing website, ensuring it is visually appealing, technically sound, and drives business impact. Collaborate with cross-functional teams to develop engaging experiences that meet business goals. Manage the Website Design System and translate performance insights into design initiatives. Requires 9+ years of experience in web design, UX/UI, or digital marketing with a portfolio showcasing strategic thinking and high-quality execution. Must have a deep understanding of web design principles, performance marketing, SEO, CRO, and responsive development. Experience with AI-powered product experiences or AI tools is preferred.

Senior Specialist, Immigration will manage complex immigration cases across EMEA, advise clients and internal stakeholders, and support sales and client success.

Inbound Growth Lead to define and scale a growth engine focused on SEO, content strategy, and organic acquisition. Responsibilities include developing and executing a growth strategy, managing SEO, and leveraging AI and automation to improve efficiency and performance.

The Customer Success Manager will serve as a trusted advisor to key stakeholders, onboarding customers, increasing user acquisition and engagement, ensuring retention, and uncovering upsell opportunities.

Research Studentship for Master or Integrated Master students within the HELIPORT project. The scholarship will evaluate reliable calculation models for axial resistance of helical screw piles. Duration: six months.

The Host will welcome and assist guests, ensuring a personalized and memorable experience. Responsibilities include check-in/check-out, managing reservations, providing information about hotel services and local attractions, and handling guest requests.

Data Scientist specializing in Recommendation Systems to design, implement, and optimize end-to-end recommendation pipelines. Develop, evaluate, and improve ML models for RecSys using Python, deep learning, and cloud platforms.

Inside Sales Intern to support lead generation, prospect qualification, and pipeline management. Collaborate with internal teams to ensure a smooth customer journey.

Provide phone, email, and chat support to Czech-speaking customers. Maintain accurate records and ensure high customer satisfaction. Must be native/C2 Czech and have good English.

The University of Coimbra seeks a full-time research grant recipient for a 6-month project investigating the effect of transcriptional modulation on cellular senescence in Alzheimer's disease.

Test Automation Engineer will develop backend and frontend automation solutions, including UI, API, and REST automation. Responsibilities include automating test cases (Keyword Driven and Gherkin), developing DevOps activities, and automation optimization.

Research scholarship focused on numerical simulation of pipeline stress and fatigue. Successful applicant will produce a final dissemination video summarizing findings.

Darkroom seeks a Community & Creator Marketing Manager to build and manage relationships with creators, influencers, and marketing partners. Responsibilities include creator workflow management, identifying new creator opportunities, coordinating events and content programs, and managing community engagement across social channels. The ideal candidate has 3-5 years of experience in community management, content marketing, influencer marketing, or marketing partnerships.

Senior Platform Engineer will operate, stabilize, and modernize on-premises infrastructure. Responsibilities include introducing Kubernetes, incrementally modernizing the platform, and operating and maintaining on-premises infrastructure and platforms. Experience with Kubernetes, Terraform, Puppet, Ansible, and Linux infrastructure is required.