freelance English-speaking jobs in Barreiro

AI Prompt Engineer to design and optimize LLM workflows for transforming pharmaceutical contracts and medical forms into structured data. Responsibilities include prompt design, workflow engineering, system development, quality assurance, and collaboration with cross-functional teams. Requires expertise in prompt engineering, healthcare domain knowledge, Python development, and GenAI fundamentals.

Site Manager to ensure optimal production site performance, manage project milestones, and lead a team of ~20 employees. Responsibilities include production scheduling, supply chain management, human resources, safety, and project management. Requires 5+ years of experience in industrial/agro-industry production management with a focus on workforce, HR, production, and KPI management.

French Nurse Customer Support Specialist for Abbott Diabetes Care. Provide patient support via calls and emails, offering guidance on diabetes treatment technologies. Must have a nursing degree, fluency in French (C2), and intermediate English (B2).

Enterprise Sales Manager will identify new business opportunities, present tailored solutions, and manage the sales cycle. Requires 2+ years of sales experience, strong communication and negotiation skills, and fluency in English.

Sales Representative to develop the Iberian market (Spain or Portugal) by building a dealer network and conducting field sales. Requires experience in agricultural machinery, construction equipment, or automotive industries and a bachelor's degree in a related field.

Experienced SEO Manager needed to lead and optimize SEO initiatives, driving revenue, engagement, and brand awareness. Must have 7+ years of experience managing large websites, proven SEO track record, and strong project management skills.

Freelance Graphic Designer needed to create and deliver digital assets for a global brand. Responsibilities include designing content, building scalable toolkits, and ensuring brand consistency across multiple platforms. Requires 7+ years of experience, proficiency in Figma, and strong collaboration skills.

Ecofiniti seeks a reliable ESG Consulting Trainee for a 6-month, part-time remote internship (~25 hours/week). Trainees will support client projects, drafting reports, conducting research, and collaborating with consultants. Strong written English, remote work comfort, and an interest in sustainability are required.

Accountant needed for monthly accounting processes, group closing, and statutory financial statement preparation. Responsibilities include account reconciliations, data quality checks, and ERP system transition support. Strong accounting knowledge, analytical skills, and fluency in English are required.

Senior engineer to design, build, and scale a production-grade IoT/MQTT platform. Experience with AWS, containerization, time-series databases, and MQTT systems required.

Video Editor needed for ecommerce ads across Facebook, YouTube, Instagram, etc. Must have 2+ years experience with Premiere or similar software and 1+ year experience with social and ecommerce ad creation.

Project Manager to manage e-commerce projects, provide project updates, and coordinate with internal and external teams. Requires 2+ years of project management experience, strong online marketing knowledge, and excellent organizational skills.

Paid Media Manager to own performance acquisition across Meta Ads and Google Ads for a D2C eCommerce start-up. Manage budgets, targeting, bidding, creative testing, and scaling. Ensure accurate tracking and build performance reports. 3+ years of experience in paid media/performance marketing required.

Senior Application Production Support will monitor application availability and performance, manage incidents, and execute change requests. Requires experience with Java App Servers, API Gateways, OpenShift, Kubernetes, and monitoring tools.

Senior Kubernetes Engineer to design, build, and maintain Kubernetes clusters across development, staging, and production environments. Responsibilities include platform engineering, autoscaling, security, deployment enablement, observability, and resilience. Requires 5+ years of experience running production workloads on Kubernetes, especially on AWS/EKS.

Go Offer seeks a Social Media & Content Manager to build and manage our digital presence. Responsibilities include developing content strategy, creating engaging posts, managing Telegram channels, and adapting content for LinkedIn and Instagram. Must have experience in SMM, content marketing, and managing Telegram channels. Excellent writing and communication skills are required.

Senior Mobile Engineer will architect and build performant Android and/or iOS apps integrating with real-time communication systems. Responsibilities include optimizing the full mobile lifecycle, collaborating cross-functionally, and acting as a mobile domain expert. Deep hands-on experience in native mobile development (Kotlin or Swift) and real-time systems is required.

Develop creative packaging concepts and product graphics for consumer goods. Create dielines for packaging structures, collaborate with vendors, and ensure optimal packaging execution. Requires 4 years of experience as a Graphic Designer with a strong portfolio showcasing design expertise. Proficiency in Adobe Creative Suite is essential.

Senior Product Manager will own and evolve Intermedia's billing and quote-to-cash systems, ensuring reliable, accurate, and scalable billing for partners and customers.

Flow is seeking a Founding CX Knowledge & Enablement Lead to build and scale "Flow University," a gold standard for CX enablement in the AI era. This role involves creating documentation, training, and onboarding materials, partnering with Product/Engineering to scale the system, and coaching Team Leads to ensure quality and continuous improvement.