freelance English-speaking jobs in Valongo

Intermediate .NET Developer will contribute to the development of digital products using C#, .NET, and relational databases. Must have 2+ years of back-end development experience and proficiency in Object-Oriented Programming. Fluency in English is required.

Freedom24 is the investment platform of the international financial company Freedom Holding Corp. (NASDAQ: FRHC), serving over 400,000 clients worldwide in the investment brokerage sector. Clients have access to more than one million investment products – from bonds and stocks to funds and options.

SaaS Revenue & Financial Analyst will own the measurement layer of the business, analyzing ARR, net retention, churn, pipeline conversion, and other key metrics. You will reconcile Salesforce and QuickBooks data, produce financial packages, and model scenarios for pricing, product bundling, and expansion. Requires 3+ years of SaaS financial analysis experience, deep Salesforce proficiency, and understanding of ASC 606 revenue recognition.

HR Business Partner to support the Global Project Centre – East (GPCE) Team. Provides HR advice to managers and employees across designated African countries. Implements regional HR strategies and collaborates with global HRBPs. Supports talent management, learning & development, employee engagement, performance management, and reward programs. Ensures compliance with employment legislation. Requires a Bachelor's degree in HR, Business Administration, or related field, professional HR certification, and at least 3 years of experience in a business partner role. Fluency in English and Portuguese is required.

Welo Data seeks attentive listeners to transcribe 5-second audio clips in Portuguese, following a style guide and flagging audio issues. Must have native or near-native fluency in Portuguese, strong written skills, and reliable equipment.

Fullstack Developer with 5+ years experience in Java, Spring Boot, and OOP principles. Develops and maintains robust services in a service-oriented ecosystem. Collaborates in an agile team to drive innovation and best practices.

Marketing Designer needed to create compelling visual storytelling across digital and print channels. Collaborate with marketing teams to design impactful assets and ensure brand consistency. 2+ years of design experience and expertise in Figma and Adobe Creative Suite required.

Dutch-speaking Consultants provide strategic user support, FinTech advisory, and technical troubleshooting for a digital wealth management platform.

Oversee the development of complex web applications using Adobe Experience Manager (AEM) and Adobe Edge Delivery Services (EDS). Proven experience with AEM and the Adobe Experience Cloud, Java/J2EE, and standard software frameworks (Spring) is required. Knowledge of AEM technologies (e.g., Apache Sling, Sling models, HTL/Sightly), SQL, Apache Jackrabbit Oak, Web Services (SOA), XML, XSL, JavaScript, HTML, AJAX, and EDS is essential. Expertise in software architecture and technical design is needed, along with the ability to translate business requirements into scalable AEM and Adobe Experience Cloud solutions.

Staff Frontend Software Engineer will design, develop, and lead the implementation of high-performance, secure, and scalable frontend solutions using React.js and Next.js.

Managed Service Manager needed for international company. Must be based in Braga and attend the office Mondays and Tuesdays. Experience managing medium/large teams (15+) using Agile methodologies is required.

Provide German and English customer support via phone, chat, and email for a leading automotive brand. Troubleshoot issues, offer product information, and document interactions.

Product Marketing Manager to drive content and product marketing initiatives across multiple channels. Manage and optimize content across PESO channels, track performance metrics, and coordinate cross-functionally with various teams. Requires strong B2B experience, content marketing expertise, and fluency in English.

DevOps Engineer to administer code analysis platforms, implement security solutions, and collaborate with development teams. Requires experience with CI/CD pipelines, CATS, Python, Rust, AWS, Git, Next.js, and DevOps certification. Must have experience with AI/LLM or AI projects. Fluency in Portuguese and English B2 or higher required.

Staff Frontend Software Engineer with 10+ years of experience in software engineering. Expert-level knowledge of Vanilla JavaScript, React.js, and Next.js. Strong understanding of testing practices and Agile methodologies.

iOS Developer to design, build, and maintain scalable iOS applications. Experience with Swift, Objective-C, and iOS frameworks such as Core Data, Core Animation, SQL, and UIKit. Collaborate with backend, QA, and UX/UI teams.

IT Solution Architect will define functional and non-functional requirements, assess current systems architecture, and support solution build and integration. Requires a Bachelor's degree or higher in a related field and minimum 3 years of experience in solution design, build, deployment, and maintenance. Proven Salesforce.com (SFDC) experience and knowledge of architectural frameworks like TOGAF or Zachman are needed.

Senior Backend Developer will design, implement, and test complex software applications using Kotlin, Java, Spring, Kafka, and PostgreSQL. Collaborate within a SAFe framework, ensuring code quality, scalability, and maintainability. Strong communication and problem-solving skills are required.

Maintenance Team Leader will supervise maintenance work, oversee equipment maintenance, and analyze production loss times. Requires training in mechanics/electricity/electrical engineering, experience in industrial maintenance and team management.

Data Scientist will generate value from data by identifying, driving, and implementing analytics use cases across all value streams. The role requires 5-7 years of experience in analytical insights and data science, a master's degree in STEM, and expertise in Finance, Sales, and Supply Chain processes. Strong skills in data modeling, feature engineering, SQL, R, R Shiny, and Python are essential.