Principal Assistant – Business ManagementOeiras, Portugal| Office-based | Full-timeSecurity Clearance RequiredAtw Brain, we are looking for a highly organized and proactivePrincipal Assistant – Business Managementto support senior managers and leadership teams in a complex, international environment.This role combinesbusiness administration, project coordination, stakeholder management, and reporting, playing a critical part in ensuring operational efficiency and informed decision-making.Role MissionProvide end-to-end business and administrative support to leadership teams, ensuring effective coordination of resources, information flow, project activities, and stakeholder engagement in a secure and structured environment.Key Responsibilities
Manage business administration services and provide direct support to senior managers and leadership teams;Coordinate calendars, prioritize meetings, and handle sensitive and confidential information ;Ensure managers have the required information, documentation, and resources to support decision-making and cross-team coordination;Facilitate information flow and knowledge sharing across departments;Create, track, and manage multi-level task plans for self and team members;Manage project portals, document repositories, and produce regular project status reports;Support project delivery activities, including scope, timelines, resources, risks, issues, and change management;Implement and monitor information and records management policies and controls;Coordinate stakeholder communications, workshops, and events;Prepare meeting agendas, minutes, and track action plans;Support resource planning and allocation, working closely with Resource Managers;Monitor performance indicators and identify risks related to information usage;Recommend remediation actions where process or information gaps are identified. Required Skills & ExperienceEducation & Professional Experience
Higher vocational education with at least 5 years of relevant experience ,or secondary education with at least 3 years of relevant experience ; Technical & Functional Skills
Strong analytical, business analysis, and reporting skills, including Power BI ;Experience working with Agile methodologies and Kanban tools ;Proficiency in project planning, control, and resource management tools (e.g. MS Project, Service Now);Solid understanding of project coordination and administrative governance ; Soft Skills
Excellent interpersonal, communication, and stakeholder management skills;Proven ability to build effective relationships with internal and external stakeholders;Strong planning, prioritization, and problem-solving capabilities;Ability to manage multiple tasks in complex environments;High level of discretion and integrity when handling confidential information. Security RequirementsValid Security Clearance is mandatory and must be maintained throughout the engagement. Engagement Details
Location: Oeiras, PortugalWork Model: On-site, full-timeStart Date: 9 February 2026Contract Duration: 836 hoursApplication Deadline: 15 January 2026 Interested?Send your CV towith the subject line:"Principal Assistant – Business Management"