freelance English-speaking jobs in Valongo

Senior software engineer to lead the design and implementation of an automated Linux build control system for the Ubuntu Linux kernel. Requires strong Python programming skills, experience patching and configuring the Linux kernel, and knowledge of kconfig and git.

The Pestana Hotel Group seeks a Unit Manager for a hotel in Madeira Island. The role involves supervising staff, managing budgets, promoting hotel services, and ensuring customer satisfaction. Requires proven experience in hotel management, fluency in Portuguese and English, and a degree in a relevant field.

French Quality Analyst & Trainer to supervise a team, deliver training, and ensure client satisfaction. Must have native or proficient French, advanced English, and experience in quality, training, or a similar role.

This is a solutions consulting role focused on helping global consumer brands navigate the challenges of AI-driven environments. You will diagnose complex customer challenges, design solutions, and deliver measurable outcomes.

Test and validate electronic products, assist in hardware and firmware debugging, assemble and repair electronic boards, and support PCB design.

Conducts audits of Organon processes, affiliates, vendors, and investigator sites to ensure quality and compliance with local and international regulatory requirements. Prepares audit reports, manages follow-up activities, and provides guidance to internal stakeholders. Maintains expertise in Organon policies, procedures, and guidelines, as well as local and global regulatory requirements.

Hybrid Data Engineer / Web Developer needed with 3+ years Python/PySpark experience. Design, develop, and implement data tools, UIs, and ETL jobs. Build interactive dashboards in Power BI and RESTful APIs with Flask. Experience in web application development with Vue.Js required.

Decskill is seeking a Quality Assurance Specialist to join its team. The ideal candidate will have experience with ALM, Jira, Xray, Soap UI, Postman, and Jmeter.

Sustainability Risk Analyst will monitor and analyze sustainability risks for Nordea Funds and Institutional clients. Responsibilities include reviewing investment practices for Greenwashing, driving governance policies, and collaborating with stakeholders.

JD Edwards Developer needed to design, develop, and maintain JDE applications, focusing on Finance and Sales modules. Expertise in JDE development tools and environments required.

Provides accounting and administrative support. Processes invoices, enters data, and performs general administrative tasks. Requires an accounting background and proficiency in MS Office, particularly Excel.

Investigate and resolve complex telephony and network issues impacting customer call quality. Troubleshoot voice quality, VoIP, and telecom integrations, collaborating with customers, support teams, and telecom providers. Analyze logs, signaling data, and call traces to identify root causes.

Lead Medical Writer needed for 9-12 month freelance engagement. Develop, write, and revise clinical protocols, amendments, and study documents. Collaborate with cross-functional teams to ensure scientific accuracy and regulatory alignment. PhD or Master's degree in a life science discipline required.

The IT Infrastructure & Digital Workspace Administrator/Engineer optimizes and maintains core IT systems, corporate applications, employee endpoints, and digital productivity platforms. This role focuses on service continuity, user empowerment through self-service workflows, and automation of tasks and integrations.

Dutch-speaking Recruiter to source, interview, and onboard talent for a multinational BPO company. Requires fluency in Dutch (C1) and English (B2), a university degree, and experience with recruitment process methods and Applicant Tracking Systems.

Experienced Vue.js Developer needed to design, develop, and improve web applications. Must have proficiency with CSS Animations and Websockets.

SRE Engineer to join a team supporting over 200 services running in GCP/GKE. Responsibilities include service ownership, infrastructure evolution, embedded DevOps, innovation, automation, reliability, and on-call support. Requires 3+ years experience as an SRE/DevOps Engineer, Kubernetes expertise, and knowledge of SRE/DevOps methodologies. Experience with GCP, PostgreSQL, MySQL, ClickHouse, and monitoring solutions is preferred.

Performance Marketing Specialist to drive paid acquisition channel execution and optimization. Manage ad infrastructure, execute creative testing, and optimize for Contribution Margin and CAC. Deep expertise in Meta Ads, creative strategy, attribution tracking, and budget management.

IT Delivery Manager with 5+ years of experience in project and service management using Jira and EasyVista. Leads technical projects, ensures on-time delivery, and bridges the gap between technical and business teams.

Trainee will support Markets Back Office, Cash Transfers, and Funds Execution teams. Assists with booking, matching, settlement, cash instructions, fund order execution, and reconciliations. Requires a bachelor's degree in a relevant field, up to 2 years of experience, fluency in English, and strong teamwork skills.