freelance English-speaking jobs in Maia

Machine Learning Engineer with proven experience in Spark, Python, and Azure Databricks. Develops and deploys machine learning models using libraries and platforms for production. Experience with CD4ML, MLOps, and RESTful APIs.

Senior iOS Developer sought for a global professional services firm. 5+ years of Swift experience, reactive frameworks (RxSwift, Combine), UIKit (code-based), and mobile architecture patterns (MVVM, MVVM-C) required.

Supports Airbus' Risk and Compliance Systems Department in fulfilling its roles and responsibilities. Collaborates with stakeholders in Compliance, Internal Controls, and Finance Operations. Deploys controls on business flows of Airbus entities worldwide and supports audits/internal control reviews.

Location: Ta' Xbiex, Malta Take control of your career in a role that offers true ownership, uncapped rewards, and pure meritocracy all in an expanding consultancy.

Senior Test Automation Engineer needed to develop and maintain automated tests for internal applications. Collaborate in Agile environments with development and product teams. Execute functional and non-functional tests. Experience with tools like Selenium, Cypress, and CI/CD integration required.

The University of Aveiro is offering a Research Grant in the field of Psychology for a project on sexual objectification and violence in the context of embodied human-like sex technologies.

Business Analyst needed for a Portuguese tech company specializing in software development. Must have proficiency in English and experience with financial products, front/middle office workflows, Jira, Confluence, and SQL. Knowledge of Summit Front Office is a plus. Only candidates currently in Portugal will be considered.

The Digital Experience & Content Strategist ensures a high-quality, consistent, and guest-centric digital experience across Scenic and Emerald websites and mobile apps. This role supports website content operations, publishes and manages app content, and ensures cross-brand alignment. The role also focuses on improving digital experience quality, validating analytics implementation, enabling SEO and content discoverability, and driving clarity, consistency, and operational excellence.

Lead and develop a team of German-speaking Concierge Advisors, providing exceptional lifestyle, travel, and event support. Monitor performance, service quality, and customer satisfaction across phone, email, and messaging channels. Support complex client requests and ensure accurate handling within the ticketing system.

Post-Doctoral Research Grant within the project "GEO-VINE - Modelação Geoespacial Vitícola". The successful candidate will collect and organize data from various sources, construct a georeferenced relational database, and develop geospatial models for multiscale prediction of vineyard productivity.

Senior SAP SuccessFactors Consultant to implement, configure, and support Recruiting and Onboarding 2.0 modules. Requires expertise in SuccessFactors functionality, HR best practices, and 5-7 years of experience in development, implementation, and optimization of SAP SuccessFactors Recruiting and/or Onboarding modules.

Senior Consultant to support daily operations and business expansion, analyzing market trends and identifying growth opportunities. Responsible for strategic and analytical tasks, cross-team project coordination, and process development. Requires a strong analytical mindset, "hands-on" execution style, and proficiency in MS Office and analytical tools.

Senior Back Officer manages loan administration tasks and refinancing activity for the EMEA branch. Ensures day-to-day support for new and existing credit facilities, manages payments, and facilitates loan utilizations, rollovers, and repayments. Validates transactions, provides support to junior officers, and ensures compliance with regulations and processing times. Requires a Bachelor's degree, experience with relevant cash payment and reconciliation systems, and proficiency in English.

Lead and organize engineering teams to deliver product features and maintain platform reliability. Improve engineering efficiency, define team structures, and build a high-performing organization. Ensure high-quality, on-time delivery of platform and product initiatives while overseeing system architecture and technical design. Communicate effectively with stakeholders and translate technical priorities into business terms.

Tech Lead for Wüest Dimensions, responsible for requirements analysis, software development, design, and collaboration with Product Owners and Business Partners.

Provide professional interpretation services (Legal Medicine - General and Forensic) in Ukrainian and English. Must be fluent in Ukrainian and have at least a B2 level in English. Requires an EU Passport or work visa in Portugal.

Research grant opportunity within the "CircularTech" project at FEUP. The successful candidate will analyze social media data, apply machine learning, and contribute to a scientific article on consumer-driven circularity.

The Instituto Português de Oncologia do Porto Francisco Gentil is seeking a technician for a 12-month unfixed-term contract. The position supports research on the influence of triple negative breast cancer secretome in bone pre-metastatic reprogramming. Applicants must have a Bachelor's degree in Biochemistry/Biology or a related field, fluency in English and Portuguese, and documented experience in breast cancer bone metastasis research, extracellular vesicles, and molecular biology techniques.

Leads global SEO strategy and organic growth for sports, casino, and betting brands. Manages a team of 80+ SEOs, owns budgets, and integrates AI-driven content systems. Requires 7+ years of SEO experience, technical SEO expertise, and P&L ownership.

Backend Developer will design and implement robust APIs and data systems for complex accounting processes. Responsibilities include architecting backend services, bridging AI and data, and owning technical implementation. Requires 7+ years of experience in backend development, strong proficiency in and TypeScript, and extensive experience with PostgreSQL.