freelance English-speaking jobs in Leiria District

Seeking a Java Developer with 3+ years of experience. Requires strong knowledge of Java, OOP, Spring/Spring Boot, backend development, and REST APIs. Must understand SQL and Git. Fluent English is required.

Data & BI professional needed with strong SQL expertise, data modeling, and data warehouse experience. Skills include Power BI, DAX, Tabular Models, Git, SSDT, and basic C#.

Techno-Functional QA Engineer needed for a global trading platform project. Requires 3-5 years in software testing, knowledge of BDD, automation, Linux, Python, and API testing. Experience in financial markets and fluency in English and Portuguese is required.

Senior Full Stack Engineer to maintain and evolve web platform and backend systems. Responsibilities include Node.js/TypeScript backend, PostgreSQL, Vue.js frontend, and payment integrations. Requires 5+ years experience.

Set and deliver the marketing strategy for Shine's portfolio in Portugal. Lead a local marketing team, manage paid media, own local SEO, and oversee website migrations. Requires 5-8 years in marketing with fluency in Portuguese and English.

Client Services Executive manages client requests and operational aspects of the client journey in global business aviation. This role requires a client-facing background, strong English, and the ability to manage multiple systems under pressure.

Frontend Developer with UX/UI experience to build modern, consistent digital applications. Responsibilities include developing interfaces using design systems and exploring AI tools. Requires 3+ years in frontend development with knowledge of React/Vue and UX/UI principles.

Data Engineer to build and maintain scalable ETL and data ingestion pipelines using Databricks and PySpark. Responsibilities include developing data models with SQL/dbt and supporting Snowplow event tracking. Requires a technical degree and experience with relevant technologies.

Founding Agent/LLM Engineer to architect and scale next-generation agent infrastructure for real-world industrial decision systems. Responsibilities include designing LangGraph workflows, building robust RAG systems, and implementing hallucination detection. Requires advanced Python and scalable systems thinking.

Own the EEA growth campaign engine, covering Affiliate, Listing, Trade & Earn, and New Product Launches. This coordination and execution role requires 4-7 years of experience, including 2+ years at a tier 1 regulated crypto exchange. Fluency in English and German, French, or Dutch is required.

Junior Software Tester ensures software quality by executing test cases and reporting bugs. This role requires strong analytical skills, knowledge of testing methodologies, and collaboration with the development team.

Own Zendesk configuration across Support, Guide, Talk, and Messaging for global markets. Build workflows, manage channels, and handle integrations. Requires 5+ years administering Zendesk on Enterprise plans.

Industrial Engineer to join the Global Air Network Planning and Engineering team, focusing on short and mid-term planning. Responsibilities include building seasonal air network plans and optimizing business performance.

Design and develop Talend ETL/ELT workflows for data integration and transformation. Requires 3+ years in ETL development, including 2+ years with Talend DI/Cloud, SQL, and cloud platforms.

Category Manager responsible for portfolio strategy, execution, and business management. Duties include defining sourcing lists, identifying savings, negotiating contracts, and reporting on category performance. Requires a Bachelor's degree and at least 3 years in Purchasing, including 1 in automotive.

Seeking a Mobile Developer with 5+ years of experience to build and maintain complex, large-scale fintech mobile systems. Requires strong Kotlin Multiplatform, full-stack, and Clean Architecture skills.

Pastry Cook responsible for pastry service, preparation, and coordination with room teams. Duties include checking ingredient stock, maintaining quality, and adhering to safety standards. Requires professional experience.

Internal Audit Associate role in Financial Markets. Responsibilities include planning and executing audits per IIA Standards, assessing governance, and evaluating compliance with regulations like MiFID II. Requires 5-10 years in Banking/Financial Services.

Deliver SAP functional training to business users during UAT. Train end users on SAP operational processes, data entry, and workflows. Guide test execution, provide functional support, and prepare user-focused training materials.

Senior Developer for Dynamics 365 to design, build, and enhance enterprise applications using C#/.NET, JavaScript/TypeScript, and Power Platform. Responsibilities include developing customizations, integrations via REST APIs, and contributing to DevOps in an agile environment.