freelance English-speaking jobs in Maia

Buyer for Logistics Services will manage end-to-end procurement activities for transport and logistics service providers. Responsibilities include strategy development, sourcing, contracting, and management. The role requires 2-5 years of procurement experience, strong negotiation skills, and fluency in English.

Senior Rails Back-End Developer to architect, scale, and optimize back-end systems for a SaaS platform. Focus on designing APIs, database performance, and system reliability. 7+ years of professional development experience, including 5+ years building and maintaining production Rails applications. Strong database expertise (PostgreSQL or MySQL). Experience with background job frameworks and async processing.

Leads retail expansion in Iberia by identifying, sourcing, and qualifying potential partners. Develops and evolves the partner-led store model, including commercial frameworks and brand standards. Negotiates commercial agreements and supports partners throughout the launch phase.

Product Manager for card linked offers solutions in Europe. Responsible for product development, enhancement, and scaling across the region. Will act as regional SME, understand competitive landscape, and map regional needs.

Leads the Cloud Antivirus Department at Imunify360, overseeing three teams responsible for malware detection, analysis, and cloud scanning infrastructure. Drives product strategy, technical architecture, and people management for the department. Requires 8+ years of software engineering experience, 3+ years in a management role, and deep expertise in malware analysis and antivirus technologies.

Senior Robotics Engineer will design, develop, and integrate cutting-edge robotic control systems for uncrewed marine vessels. Responsibilities include software development, system integration, and mentoring junior engineers.

This role combines SEO expertise with client communication and support. Responsibilities include running client calls, analyzing SEO performance, providing recommendations, handling customer support, contributing to marketing initiatives, and working on internal projects.

Leads the governance, execution, and evolution of the sales compensation framework. Manages a team responsible for plan execution, calculations, onboarding support, and governance. Partners with Sales Leadership on compensation plan interpretation and structural clarifications. Drives process standardisation and implements a scalable compensation management tool.

Java & Angular Software Developer needed to lead application lifecycle stages, translate business requirements into technical solutions, and contribute to innovation. Requires strong Java, J2EE, Spring, Angular, and SQL knowledge.

Insurance Accountant Tax Specialist will ensure accounting data compliance in GFAAP and IFRS. Responsibilities include day-to-day tax compliance, quarterly closing, and project contributions. Requires a Master's degree in accounting/finance/audit, 3-5 years of experience, strong analytical and communication skills, and fluency in French (C1) or English (C1). Experience with accounting systems and data tools is a plus.

Salesforce Business Analyst needed for a contract-to-hire role in Lisbon. Translate business needs into Salesforce solutions, collaborate with delivery teams, and support end-to-end project delivery. Proven experience in Salesforce platforms and Agile methodologies required. Fluent Portuguese is essential.

Biomedical Scientist to design and execute laboratory experiments using blood-derived samples, analyze spectroscopic data, and support clinical study setup. Requires a PhD in a relevant field and experience with blood-derived samples and spectroscopy.

Driven Recruiter to support hiring across North America and global markets. Responsibilities include sourcing, screening, and interviewing candidates, supporting hiring managers, and advising on best practices. Requires at least one year of in-house recruiting experience, strong sourcing skills, and experience with an ATS.

Participate in shipping digitalization projects, assist with testing new solutions, and optimize processes. Support SAP S/4HANA implementation projects and maintain master data.

Provide multilingual customer support via phone, email, and live chat for an international organization. Resolve customer queries, handle complaints, and ensure compliance with service standards.

Fractional CMO needed for a profitable, fast-growing AI job search company. Focus on growth marketing, user acquisition, and data-driven decision making. Must have B2C subscription scaling experience and a strategic, hands-on approach.

German-Speaking Google Ads Onboarding Account Manager will onboard new clients, build and optimize PPC campaigns, and manage client interactions. Requires C2 German, strong English, and 2+ years in sales, digital marketing, or client-facing roles.

Senior Market Risk Analyst specializing in FX and derivatives. Monitors market metrics, analyzes risk, and reports on breaches. Develops and runs quantitative risk controls and participates in product development. Requires a Master's degree in a relevant field and 5+ years of experience in banking, derivatives, market risk, and data analytics. Proficiency in Python, SQL, and Microsoft Office Suite is essential.

Senior Database Administrator to manage and enhance critical database systems for a leading banking institution in Porto. Responsibilities include administering SQL Server databases, troubleshooting issues, and collaborating with teams on database architecture. Requires 8+ years of experience as a Database Administrator and fluency in English and Portuguese.

Provide customer support via chat, email, and phone to high-level clients. Assist with the self-serve advertising platform and troubleshoot technical issues. Fluency in Swedish and proficient English required.