freelance English-speaking jobs in Leiria District

Senior .NET Backend Developer to develop and maintain backend applications using C# and .NET. Responsibilities include building REST APIs and microservices, implementing event-driven integrations, and supporting CI/CD pipelines. Requires 5+ years of experience.

LCA Specialist transforms environmental data into actionable insights for product development and strategy. Executes LCA and PCF calculations, analyzes performance, and enhances LCA capabilities across functions. Requires 3+ years in LCA/PCF analysis.

Product Engineer for High Voltage Contactors. Execute product design, lead development and sustaining engineering projects for automotive electrification. Requires relevant engineering degree and 1+ year in Automotive/E-Mobility design.

Build and improve ML/GenAI solutions, contributing hands-on to services and pipelines. Requires 3+ years shipping ML solutions with Python, data modeling, and cloud infrastructure experience.

Head of Product Management LIMS/LIS Clinical Diagnostics leads the end-to-end lifecycle of the LIMS/LIS product. This leadership role manages a team, defines strategy, and balances business needs with technical feasibility.

AP Accountant needed to receive, review, and process vendor invoices, manage payments, and reconcile accounts. Requires a degree in Accounting or related field, English fluency, and experience with accounting software.

Treasury Project Manager supports cross-functional Treasury transformation initiatives, acting as the SAP S/4HANA SPOC. Coordinates requirements, testing, and alignment across global programs. Requires SAP S/4HANA payment process experience.

Business Development Director, Global Alliances, drives business impact from strategic alliances across the Group. Responsibilities include industrializing pipeline generation and supporting partner commercial activation globally. Requires 5+ years in business development or international technology ecosystems.

SAP Payroll (PY-PT) Consultant needed to support and optimize SAP Portuguese Payroll solutions. Requires 3+ years in SAP PY-PT, hands-on SAP HCM experience, and proficiency in Portuguese and English.

Vendor Planner manages supplier communication via EDI, monitors material demand vs. coverage in SAP, and ensures inventory targets are met. This role requires logistics knowledge, SAP experience, and proficiency in English and Portuguese.

Senior Developer for Dynamics 365 CE and Power Platform projects. Key technical reference driving solution design, ensuring quality, and mentoring junior team members. Acts as a senior technical partner in architecture and client engagements.

Support organizations in assessing technology environments and identifying risks and value creation levers across M&A transactions. Execute IT Due Diligence, assessing IT landscapes, risks, and governance.

Senior .NET Developer needed for a project in business investment banking and financial services. Requires 9+ years of experience with C# (.NET), Oracle/PLSQL, Git, and Azure DevOps. Fluent English is required.

Operations Team Leader role focused on improving services and customer satisfaction through TL tasks. Requires flexibility, analytical skills, and the ability to manage personnel and complex situations. Advanced English is essential.

Experienced React Developer needed for a Portuguese consulting company. Requires 3+ years with React, strong JavaScript (ES6+), TypeScript, HTML5, and CSS3. Must know REST APIs, testing, and Git.

Experienced Machine Learning Engineer needed to design, develop, and implement ML algorithms to solve business problems. Requires background in math, statistics, and programming in Python or R.

Senior AI & Data Engineer to ship production-grade agentic AI systems and own data plumbing using dbt. Must have experience with tool-calling LLMs, production RAG, and data testing.

Own technical knowledge capture for AR5 documentation, enabling engineers with internal LLM tools. Act as the human-in-the-loop to ensure accuracy against aerospace and defense standards. Requires engineering background and technical English.

Translate product strategy, customer needs, and market requirements into implementation-ready product definitions. Define scope, features, and maintain traceability between strategy and implementation.

Driver/Data Collector to capture high-quality visuals of streets and points of interest using vehicles equipped with 360° cameras and lidars. Requires a valid EU driver's license, 5+ years of driving experience, and proficiency in English.