assistant English-speaking jobs in Barreiro

Accountant needed for daily accounting operations, financial record management, and administrative support in Portugal. Must have strong accounting fundamentals, attention to detail, and the ability to work independently. Prior experience with the Portuguese accounting system is advantageous but not required.

BrainRocket seeks an Access Administrator to manage user access to company systems and data, ensuring security and compliance. Responsibilities include managing user accounts, conducting audits, implementing access control policies, monitoring access activities, and responding to incidents.

The Centre for Environmental and Marine Studies (CESAM) at the University of Aveiro invites applications for Marie Skłodowska‐Curie Actions Postdoctoral Fellowships (MSCA‐PF) 2026. Open to researchers of any nationality with a maximum of 8 years full‐time equivalent research experience post‐PhD, applicants must not have resided or conducted their main activity in Portugal for more than 12 months in the 36 months before the call deadline. CESAM offers a vibrant research community dedicated to addressing critical environmental and marine challenges.

Senior Retention Manager to own results and relationships for 4-5 high-value Shopify brands. Develop advanced retention strategies, write copy, and mentor team members. Requires 4+ years Klaviyo experience and expert-level retention strategy skills.

Aubay Portugal seeks an experienced AI/Data Engineer with 5+ years of experience in data engineering or a similar role and expertise in AI projects. Requires expert-level SQL and Python skills and proficiency in English (B2+ level).

Senior Engineer will own the architecture, performance, privacy, and developer experience of RudderStack SDKs. This role involves collaborating with engineering and product teams to ensure seamless event capture, transformation, and delivery.

As CPO-in-Training, you will own projects, drive results, and contribute to the development of initiatives across Samlino Group's three markets. Responsibilities include setting goals, developing strategic plans, and executing projects from inception to completion.

As Manager, Internal Technology, you will define the technical roadmap and architecture for our People SaaS ecosystem. You will partner with People Operations, Talent Acquisition, Payroll and L&D to improve processes and build integrations. You will also drive automation, perform system administration, and troubleshoot technical issues.

As Support Enablement Manager, you will design and implement tools, processes, and frameworks to deliver outstanding customer support. You will handle customer inquiries, identify and eliminate support ticket root causes, and build a world-class Help Center. You will also manage the support tech stack, analyze support data, and collaborate with cross-functional teams to improve the customer experience.

This role involves evaluating and implementing fraud prevention controls, conducting forensic audits and investigations, and strengthening ethical environments within organizations.

Senior Electrical Engineer to design and deliver electrical systems for mission critical infrastructure projects. Requires 8+ years of experience, including 5+ years in mission critical projects, and registration with Ordem dos Engenheiros. Must have expertise in low, medium, and high-voltage power systems, substations, and energy efficiency practices.

Senior Data Engineer with strong Python skills and experience building data pipelines, data lakes, or data warehouses. Must be proficient in French (B2 level) and available for hybrid work in Lisbon.

Client Manager to manage and grow a portfolio of clients, manage project contracts, and drive business growth within the Buildings Business Unit. Requires a degree in Architecture or Engineering, 5+ years of experience in similar roles, and advanced English.

Deployment Support Engineer will lead MES and application environment deployments, ensuring secure, efficient, and scalable installations. Responsibilities include installation, configuration, troubleshooting, and optimization of MES setups, as well as managing environment governance and access.

Develop software and conduct technical analysis based on functional specifications. Requires strong knowledge of Cobol, DB2, CICS, and JCL, and at least 7 years of programming experience.

EUsouvenirs seeks a sales representative in Lisbon to expand its premium souvenir product sales in Portugal. Must be based in Lisbon, speak Portuguese and English, and have sales experience approaching wholesale buyers and retail points of sale.

Own and execute product strategy for platform services, defining roadmaps and leading engineering teams through delivery. Partner with Principal Product Managers to ensure platform capabilities meet product needs. Define and monitor platform metrics, establish SLAs, and measure impact on developer productivity. Champion developer experience through clear documentation, intuitive APIs, and responsive support.

The On-Demand Country Lead will manage logistics as a service in Portugal, focusing on sales, account management, and financial control. Responsibilities include managing a team, identifying partner needs, developing action plans, and negotiating contracts.

Experienced Software Engineers to develop and maintain scalable web applications. Strong skills in JavaScript/TypeScript, React.js, Node.js, HTML5, CSS3, .NET (C#, .NET Core) and backend fundamentals required.

Lead AI-driven product initiatives as a Product Owner / Business Analyst. Identify business problems solvable with AI, define product vision, and translate requirements into actionable tasks.