freelance English-speaking jobs in Valongo

Summer Internship at a leading European entertainment and communication business. Join dynamic teams in Quality Assurance, Mobile, Frontend, Backend, Data, Human Resources, or Marketing. Develop software using agile techniques and collaborate with other developers.

QA Engineer to develop and maintain test cases and scripts using UFT and Selenium. Execute automated tests, identify defects, and collaborate with development teams.

Java (with C#) Developer needed for a national project. Develop and maintain a Position/Trades booking platform. Collaborate in an agile development lifecycle. Proven experience in similar roles and proficiency in Java Core (SE), multi-threading, and C# required. Fluency in English is essential.

SHES Specialist to implement and embed safety, health, environment, and security processes. Monitor compliance with Portuguese legislation, conduct investigations, and deliver SHES training. Requires a degree in a related field and experience in SHES management, preferably in manufacturing, mining, or heavy industry. Fluency in Portuguese and English is required.

Quantitative Consultant to process statistical data, develop predictive models, and conduct time-series and simulation modeling. Requires knowledge of modeling techniques, statistical programming languages, and big data tools.

Pyyne seeks a .NET Developer to build, test, and deploy web applications using ASP.NET MVC and React. Responsibilities include collaborating with front-end developers, writing clean code, managing SQL Server databases, and participating in agile development.

Software Architect and Team Lead with 80% architecture and 20% team leadership responsibilities. Requires experience designing software systems using DDD and hexagonal architecture, full-stack .NET development, modern web frameworks (React or Angular), and DevOps principles. Fluent English required.

Powerplant Systems Specialist needed to support maintenance and engineering for executive jet fleet. Responsibilities include developing powerplant data, identifying fleet improvements, coordinating modifications, and reviewing reliability reports. Requires operational powerplant experience in EASA Part CAMO or Part 145 organizations.

Control Software Engineer with expertise in power electronics, electrical machines, and converter control. Experience with MATLAB/Simulink, Simscape, embedded C/C++, and real-time firmware development required.

Software Engineering Intern will contribute to the architecture, design, and implementation of Emma's technology platform. Responsibilities include implementing product features, supporting DevOps practices, and collaborating within an agile team. Applicants should have a degree in a relevant field, understanding of computer science fundamentals, and familiarity with JavaScript or Golang.

Senior QA Automation Engineer will design, develop, and implement automation testing strategies. Responsibilities include developing test automation scripts, supporting developers, and mentoring team members. Requires 5+ years of experience in software quality assurance, automation testing, API testing, and scripting languages.

Performs qualitative and quantitative analyses of compounds. Recommends analytical characterization packages and controls data quality. Assists analytical chemists with laboratory tasks and project analytical activities.

Data Analyst needed with 2-3 years of experience in Business Intelligence and Data Analytics. Must have a Bachelor's degree in a related field and proficiency in data analysis, visualization, and understanding business objectives. Experience with Looker Studio, Power BI, and databases is required.

QA Automation Engineer needed with 3+ years of experience designing, implementing, and executing automated test scripts. Proficiency in tools like Selenium WebDriver, Cypress, Appium, and Cucumber required. Experience with CI/CD pipelines, API testing, and Agile methodologies is essential.

Supports the implementation of Greenvolt's Integrated Management System and HSE projects. Ensures compliance with legal and voluntary requirements, coordinates with local environmental teams, and conducts audits. Requires experience in the energy sector, HSE in a corporate and multi-site environment, and integrated management systems.

Develop, maintain, and evolve test automation frameworks, implementing API and performance tests. Experience with tools like Selenium, JMeter, and programming languages such as Java or Python is required.

Senior iOS Developer needed for a 3-month contract to improve the reliability and stability of an enterprise field operations app. Focus on sync hardening, data loss prevention, telemetry, and media upload resilience. Requires 5+ years of iOS development experience, proficiency in Swift, and experience with offline-first applications.

Provides administrative support to senior leaders within the Human Resources department. Responsibilities include coordinating appointments, arranging travel, processing expense reports, and supporting departmental projects. Requires proficiency in Microsoft Office Suite, particularly Excel and PowerPoint.

Senior Solution Architect to support the transformation of the Global IT People and Culture Platform. Will design and implement technical solutions based on Salesforce and other HR technologies. Requires 5+ years of experience as a lead technologist, knowledge of Salesforce, and experience with HR application landscape optimization.

Fever seeks a Portuguese-speaking lawyer with 5+ years of experience to draft, review, and finalize commercial contracts. The Legal Counsel will support commercial teams, research legal issues, and collaborate with internal and external stakeholders.