freelance English-speaking jobs in Maia

Build and maintain APIs in Typescript, Java/Kotlin, and React Native. Own products from ideation to production. Leverage automation for infrastructure, testing, deployment, and monitoring. Experience with AWS tools and IaC technologies is required.

Financial Business Partner to support financial performance and decision-making. Analyzes financial data, prepares reports, and partners with business teams. Requires 2+ years of experience in financial controlling, FP&A, or a related field.

Senior Java Software Engineer to design, develop, and maintain backend services and APIs using Java and Spring Boot. Experience with AWS, relational databases, and Terraform required. Fluent English required.

HR Generalist to provide end-to-end support for employees and managers in the Portugal office. Ensures compliance with Portuguese labor law, manages HR administration, supports managers, and drives engagement initiatives.

Ensures smooth payment flows, handles credit card transactions, reconciles accounts, and supports tax-related processes. Prepares franchisee account statements, creates invoices, and acts as a key contact for internal and external stakeholders.

Manage high-budget advertising campaigns for global tech clients. Analyze keywords, budgets, and bid strategies across various digital channels. Prepare performance reports and identify sales opportunities.

The Head of WEA Regional Process Management and Domain Application Management standardizes and expands MSD services, driving productivity and process optimization across the region. This role focuses on identifying opportunities to deliver MSD services, implementing innovative solutions, and fostering a culture of optimization. Responsibilities include leading the regional team to deliver transactional services, partnering with service lines to identify inefficiencies, and acting as a trusted advisor to regional service line leaders.

Produces investments monitoring reports for pension funds, including asset allocation, performance, risk analysis, and strategy updates. Collaborates with other Mercer teams and external entities. Requires fluency in English, a degree in a relevant field, and 3+ years of experience in the investments industry.

The HV and MV Network Studies department seeks a Planning of High and Medium Voltage Distribution Networks professional. The role involves analyzing the electrical distribution network, designing improvements, and preparing studies to support investments.

Remote Forex and Crypto day trader using firm capital. Performance-based contract with potential for up to 90% profit share. Must follow structured trading systems and risk management rules.

Review and moderate Dutch-language content (text, images, video) to ensure it meets community standards and legal guidelines. Apply platform policies consistently and accurately, identifying and escalating violations.

React Native Engineer to design, develop, and maintain mobile applications using React Native. Collaborate with teams on planning, architecture, and implementation. Ensure code quality through testing and continuous integration.

KCS IT seeks a Junior Ruby on Rails Developer for a remote position in Portugal. Requires a Bachelor's degree in a related field, 3+ years of Ruby on Rails experience, and proficiency in RESTful APIs, database modeling, and Git. Fluency in Portuguese and English is required.

Data Engineer Trainee to assist in developing Azure-based data pipelines and integrations. Support configuration and maintenance of integration processes, build CI/CD pipelines, and contribute to data model creation and documentation. Learn to design scalable data solutions and extract/load data from various enterprise sources.

MES Functional Analyst will support clients in their Industry 4.0 roadmap and design long-term MES solutions. Responsibilities include understanding client processes, translating business needs into solutions, and working with stakeholders and technical teams. Requires a Bachelor's degree in a relevant field, 1-2 years of experience as a Business or Functional Analyst, and strong understanding of manufacturing processes and MES systems.

Exceptional Software Engineer will work on mission-critical problems and impactful products, driving significant business impact. You will build complex, reliable systems and possess a deep understanding of the full stack.

Business Analyst to represent Risk and Finance within a Squad, driving business-aligned solutions. Responsibilities include process optimization, user story contribution, testing, business case development, and stakeholder coordination.

Develop and manage strategic partnerships with private healthcare stakeholders to expand product reach and patient access to life-changing medicines, particularly in obesity.

Strategy Analyst to support the development and implementation of strategic plans and change initiatives. Requires 3-6 years of experience in strategic planning, corporate governance, or similar roles. Proficiency in Microsoft Office and fluency in English (C1) are required.

As a DevOps Release Manager, you will own and maintain the release calendar, coordinate end-to-end release activities, and ensure software reaches production smoothly. You will lead release readiness reviews, approvals, and go/no-go decisions.