freelance English-speaking jobs in Barreiro

Develop high voltage contactors for E-Mobility applications, focusing on technical performance, design to cost, and automotive quality standards. Collaborate cross-functionally with teams to design, test, and improve products.

REQUIMTE is seeking a PhD holder Researcher for a non-fixed term contract to pursue scientific research activities in the project "O reticulo endoplasmático como alvo de intervenções farmacológicas em proteinopatias". The position focuses on the development and assessment of natural and semi-synthetic molecules with pharmacological activity at the endoplasmic reticulum in the context of proteinopathies.

The Creative Strategist, UGC develops and executes a scalable UGC plan, translating marketing objectives into creative strategies and content briefs for creators. This role focuses on defining content needs, identifying creators, and shaping content across paid, social, and owned channels.

Executes operational activities and processes in production, including discharge, load, transport, clean, and operate equipment. Performs small maintenance tasks and reports defects. Logs production data and signals opportunities for improvement.

Senior ServiceNow IT Consultant to enhance and optimize ITSM processes, expand ITOM capabilities, and contribute to the rollout of Strategic Portfolio Management (SPM).

Research Fellowship for Masters-InovArt3D. The fellowship is for a Master's degree in Mechanical Engineering, Materials Engineering, Biomedical Engineering, or related fields. The work plan involves material selection, design, micromachining, additive and subtractive manufacturing, material characterization, and microstructural and mechanical analysis. The fellowship is for 12 months with a starting date in March or April 2026.

This Research Fellowship supports a Master's student in Extragalactic Astrophysics. The successful applicant will contribute to the optimization and evaluation of machine learning models for photometric sequence modeling. Tasks include data cleaning, training neural networks, benchmarking, and assisting with scientific publications.

The Instituto Politécnico de Setúbal is offering five research grants for Master's students in Computer Engineering or related fields. The grants are for a 3-month period and are part of the Sines Nexus project. Applicants should have knowledge of international transportation systems, preferably in the port area, and good technical skills in mobile development, web programming, UX, or Machine Learning.

Develop and implement solutions using Microsoft Power Platform (Power Apps, Power Automate, Power BI, Power Virtual Agents) to streamline financial workflows and support data-driven decision-making in a regulated environment.

Engage with a vibrant beauty community, manage social media conversations, and shape brand interactions. Respond to consumer comments, foster online discussions, and ensure a positive customer experience. Native-level German and English required.

The Business Analyst translates business needs into actionable requirements, working with stakeholders and technical teams. The role involves documenting requirements, supporting agile delivery teams, and contributing to data-driven decision-making.

Doctoral Research Fellowships are available for candidates with a Master's degree in Communication Sciences or related fields. Applicants must demonstrate proficiency in Portuguese and English and be eligible to enroll in a PhD program.

The UPsYDe doctoral network seeks a PhD candidate to develop rapid and reliable high-throughput methods for analyzing yeast cell death in industrial bioprocesses. The successful candidate will integrate omics analyses with targeted assays to identify molecular markers of regulated cell death and ageing. This position is based at the Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal.

Research Fellowship for a bachelor (BI) within the scope of the analysis of Green Hydrogen and its spatial analysis. The fellowship is for 3 months starting April 1, 2026, and is funded by the Recovery and Resilience Plan (PRR).

This fellowship supports research (BI) for the Vine&Wine Portugal project, funded by the PRR and NextGeneration EU Funds. The successful candidate will collaborate on tasks related to characterizing autochthonous grape varieties.

Design high-converting landing pages and A/B tests for eCommerce brands. Translate CRO strategy into effective designs that drive revenue. Collaborate with CRO specialists, PMs, developers, copywriters, and media buyers.

Senior Data Engineer / Architect will design and implement enterprise-grade data architecture, define data pipelines, and establish best practices for data & analytics initiatives. Responsibilities include architecting scalable data pipelines using Azure Databricks, defining data engineering standards, and collaborating with stakeholders to translate business requirements into technical solutions.

Manages FX/MM, Treasury & Collateral operations, ensuring operational efficiency and client service excellence. Leads a team in Lisbon, collaborating with Swiss colleagues. Requires expertise in FX/MM, Treasury & Collateral products, OTC collateral/regulatory reporting, and the S2i core banking system.

The University of Aveiro's Department of Education and Psychology is seeking a PhD student researcher for a project on education and combating disinformation related to climate change.

Senior AI Engineer will design, build, and evolve agentic AI capabilities for the financial sector. Responsibilities include developing retrieval-augmented generation (RAG) systems, AI tools for task automation, and AI systems that process natural language inputs. Requires 5+ years of software engineering experience with at least 3 years focused on AI/ML systems, strong Python development skills, and experience with LLM platforms.