freelance English-speaking jobs in Valongo

Software Engineer to develop key platform components and scale backend systems. Collaborate with clients, Product Management, and Sales teams. Requires 7+ years experience in a similar role using a modern programming language (Scala preferred), REST APIs, and AWS.

Android Developer will implement, test, and refine new features for an Android Automotive application stack. Responsibilities include collaborating with cross-functional teams, translating requirements into technical solutions, and diagnosing and resolving software defects. Must have advanced Android development expertise, including Kotlin, Java, Android SDK, Architecture Components, and Android Framework knowledge. Experience with Android Automotive OS, AAOS application models, and HMI constraints is preferred.

Develop and maintain Java-based applications. Requires 2+ years of Java development experience, object-oriented programming knowledge, and proficiency in HTML, CSS, JavaScript, and relational databases.

Experienced SAP EWM Expert (8+ years) to lead implementation projects, translating business requirements into functional specifications and ensuring seamless integration with S/4 HANA modules.

Installation Analysis Engineer will perform analysis for offshore installation activities, including flexible flowlines, risers, and subsea structures. Responsibilities include developing installation methodologies, defining allowable sea states, and writing technical project documents. Requires a Master's degree in a relevant field and minimum 3 years of experience. Competency in OrcaFlex and strong understanding of engineering principles are mandatory.

Software Engineer Trainee to develop and maintain 5G downlink features using C++. Will apply DSP concepts, contribute to feasibility studies, and participate in testing activities. Requires strong C++ knowledge and analytical skills.

Senior Release Manager will define and coordinate release schedules, manage release calendars, and lead deployment activities across development, QA, staging, and production environments.

Application & Systems Integration Engineer to develop flexible thin film solar cells for the AstroSweep project. PhD in Physics, Chemistry, Mechanical Engineering, or related areas required. Experience with thin films, power systems, and mechanical testing is necessary.

Senior Presales Telco professional to design Voice, UCaaS, omnichannel Contact Center, and network integration solutions. Requires 8-10 years of experience in Telecommunications or System Integrators, fluency in Portuguese and English, and expertise in VoIP, SIP Trunking, Cloud PBX, and Unified Communications.

Senior Fullstack Developer with 5+ years of experience in software development (React.js, Angular.js, .NET, Node.js, Python) sought. Must have a strong understanding of Object-Oriented Programming (OOP) and experience with various open-source programming languages. Fluency in English is required.

Senior Financial Analyst will conduct in-depth revenue and cost analyses, streamline financial processes, and develop financial dashboards. Requires 4+ years of finance experience, strong Excel skills, and proficiency in digital tools.

Leads and delivers large-scale, complex IT security projects throughout their lifecycle. Manages project plans, budgets, resources, and risks. Oversees project teams, vendors, and stakeholders. Plans and prioritizes project requirements, ensuring alignment and effective scope management. Evaluates project performance and recommends improvements.

Java & Angular Developer will lead application lifecycle phases, translate business requirements into technical solutions, and ensure quality control. Requires strong Java, J2EE, Spring, Angular, and SQL knowledge. Experience with build tools, DevOps tools, and Linux/Unix is also needed.

Java Backend Developer needed to design, develop, and maintain backend systems for real-time fraud detection. Responsibilities include building and evolving distributed systems, contributing to the Risk Engine, and collaborating with cross-functional teams. Requires 3+ years of backend software development experience (Java or similar), a degree in a related field, and strong knowledge of computer science fundamentals.

Senior Level Developer needed to design, develop, and implement software solutions. Requires a Bachelor's degree in Computer Science or related field and 5+ years of experience. Must have strong knowledge of programming languages (Java, C++, Python) and databases (MySQL, MongoDB).

IT Application Consultant to support and enhance global Sales systems, with a focus on SAP, integrated add-ons, and MS Dynamics solutions. Responsibilities include process-driven requirements definition, problem analysis, solution design, configuration, and documentation.

Operational Resilience & Crisis Officer will support the implementation of the Euronext Group Resilience Framework, collaborate with BCM Managers across entities, and conduct Business Impact Analysis (BIA) campaigns and Business Continuity Plan (BCP) updates.

Senior Software Developer to design, implement, and test embedded software components in C++. Requires 5+ years of experience in embedded C++ development, real-time systems, and software architecture.

Senior Change Management Consultant with a minimum of 5 years of experience required. Must have proven experience as a Certified Coach and within the banking sector or international financial groups. Proficiency in English (B2 level) and French (B2 level) is essential.

Lead and manage a team of marketing professionals, developing and implementing strategies to meet company objectives. Conduct market research, analyze performance metrics, and collaborate with cross-functional teams.