freelance English-speaking jobs in Barreiro

Software developer with 2-5 years of experience in C++ development. Requires a Bachelor's or Master's degree in Computer Science or a related field. Experience with databases, SQL, Git, RESTful APIs, WebSockets, and network protocols is necessary. Must be fluent in English.

The HRIS Talent & Performance Functional Lead will design, implement, and improve Talent & Performance processes within a global HRIS ecosystem. This role reports to the HR Program Director and collaborates with stakeholders, technical teams, and change management teams.

Business Analyst to analyze customer business processes, elicit needs, and propose solutions for financial software products. Develop functional and non-functional requirements, specifications, and collaborate with development and QA teams. Must have 1+ year experience in a similar role, strong analytical skills, and fluency in English.

Provide customer support via email, chat, phone, and social media in Dutch and English. Resolve account, billing, and technical issues. Maintain positive customer interactions and accurately record cases.

Located in the heart of Quinta da Marinha, the most exclusive area of the town of Cascais, Sheraton Cascais Resort is the answer for those seeking the very best that the West Coast of Europe has to offer. We are looking to hire a professional (M/F) for the position of Housekeeping Manager. Mission:Responsable to ensure the best experience to the guests.

The International Iberian Nanotechnology Laboratory (INL) seeks a Head of Internal Auditing to establish and lead the organization's Internal Audit Service. Responsibilities include defining the audit charter, developing and implementing the audit strategy, conducting audits across all organizational activities, and ensuring compliance with applicable laws, regulations, and internal policies. The successful candidate will have a minimum of 7 to 10 years of experience in internal auditing, preferably in a senior or leadership role, with a strong understanding of risk-based audit methodologies and audit management tools.

Experienced consultant to join a team focused on data analytics for national and international audit teams. Responsibilities include analysis of financial statements and other critical information for companies in various sectors. Requires a bachelor's or master's degree in a relevant field, at least 3 years of experience in accounting or audit, strong computer skills, and excellent English language skills.

Linux System Engineer needed with 5+ years of experience in Linux systems administration, including clustering, automation, VMware, and storage servers. Must have strong communication and problem-solving skills.

Production Manager to lead manufacturing operations in Portugal. Manage production, drive improvements, and build a high-performing team. Ensure efficiency, quality, and safety across the factory.

Experienced Marketing Manager needed to lead digital marketing strategies for Serenity, Active, and Pure wellness brands. Responsibilities include managing digital channels, campaigns, PR, and brand consistency. Requires 3+ years of experience and expertise in website, social media, and digital marketing.

Senior Backend Developer (.NET) to design, develop, and maintain scalable backend solutions using .NET 6+, C#, and microservices architecture. Requires 5-10 years of experience with .NET, C#, WebAPI, Entity Framework, LINQ, SQL, and message bus frameworks.

DevSecOps professional to integrate security controls into CI/CD pipelines, automate vulnerability analysis, and collaborate with development teams on secure coding practices. Requires experience with DevOps, CI/CD, IaC, containers, Kubernetes security, and OWASP Top 10.

Client Services Executive manages client requests, bookings, and operational aspects of client journeys. Ensures regulatory permissions are secured and arranges tailored services for a seamless travel experience. Requires experience in a client-facing role, proficiency with digital systems, strong communication skills, and the ability to work under pressure.

Senior Officer - Fund Accounting provides end-to-end support for fund accounting and reporting across complex investment structures. Responsibilities include preparing financial statements, performing bookkeeping activities, calculating net asset value, and communicating with stakeholders. Requires a Bachelor's Degree in Accounting, Business, or Mathematics, 3-5 years of experience in accounting, and proficiency in IFRS, LUXGAAP, or USGAAP.

Data Architect needed for enterprise-scale data platform design and delivery. Requires experience with AWS data services (S3, Redshift, Glue, Kinesis), SQL-based data transformation, dbt, BI/reporting tools, and data platform security/governance. Fluency in English is mandatory.

Fullstack Developer (.NET + Angular) needed for hybrid role (2 days/week in Porto). Responsibilities include creating new developments, maintaining applications, and supporting end users. Requires a university degree in a related field, experience as a full stack .NET developer with Angular, and knowledge of SQL and relational databases.

Lead Data Architect will define Renvolt's data architecture, ensuring compliance with Voltalia governance during the transition. Responsibilities include establishing data models, planning the future data platform, building data pipelines, and developing data marts.

Software Developer with a degree in Computer Engineering or related field needed. Must have experience in front-end development (ES6, HTML5, CSS3), mastery of JS and frameworks like jQuery, jQuery UI, and JSON. Knowledge of React and/or React Native, full-stack architecture, and common software engineering practices is required. Experience in mobile application development (iOS, Android, MS) is a plus.

QA Manual Analyst needed for a Portuguese tech company. Requires 3+ years of experience in manual software testing, including functional, regression, and exploratory testing. Must have experience with Jira, Xray, test case design, and Agile methodologies. Fluency in French and English is required.

Develop high-performance Java 17 and Spring Boot backend services for a logistics and parcel delivery platform. Design REST APIs, implement asynchronous messaging with Apache Kafka, and manage operational data with PostgreSQL.