About SUBCO
With a proven track record of delivering transformative connectivity, SUBCO owns and operates critical submarine cable assets linking Australia to Asia, the Middle East, and beyond. Building on this foundation, a new 5,000 km domestic cable system – connecting emerging digital hubs across Australia – is set to go live in 2026, marking a major milestone in SUBCO’s evolution.

As demand for high-capacity, resilient infrastructure accelerates, SUBCO is entering a strategic growth phase of major scale up, actively pursuing global opportunities to deliver innovative connectivity solutions that meet the needs of cloud, content, and AI-driven enterprises.

Our Values
At SUBCO, our values are the foundation of everything we do. They shape our culture, guide our decisions, and define how we interact with our customers, partners, and each other. From being Customer Obsessed to always Raising the Bar, we are committed to innovation and excellence. Together, we are a team of Trailblazers who Grow Together and hold ourselves accountable, ensuring that We Each Set the Standard for success. These values aren’t just words – they drive us forward every day.

About the Role
As the Office Manager, you will play a pivotal role in ensuring the smooth and efficient operation of SUBCO. You will oversee our Brisbane, Melbourne and London locations – planning all SUBCO events, provide dedicated support to the People and Culture team and at peak times provide administrative support across various teams. Being in this role will give you such great visibility across multiple functions in SUBCO and the opportunity to build lasting relationships with our teams in Brisbane, Melbourne and London.

Key Responsibilities
Office Management

• Oversee the smooth day-to-day operations of multiple office locations and own the front of house experience in the Brisbane HQ for all visitors.
• Serve as the primary point of contact for building management, service providers, and office vendors (e.g. cleaners, IT support, office supplies).
• Monitor and manage office inventory, ordering supplies as needed.
• Source, vet, and negotiate contracts with external contractors and service providers
• Oversee contractor performance through regular quality checks and reviews
• Develop and maintain a building maintenance schedule and ensure regular inspections, servicing, and safety checks are performed.
• Oversee the office’s physical assets, including office furniture, fixtures, equipment, and facilities supplies; manage repairs, replacements, and upgrades as needed.
• Maintain accurate records of service agreements, maintenance logs, building access cards, keys, and office security protocols.
• Monitor office-related expenses, process invoices, and work within approved budgets for facilities and maintenance.
• Liaise with Executives and team members on all interstate and international travel

HR Administration

• Draft and issue of employment contracts, variation letters, and general HR Documentation.
• Administer monthly eNPS surveys, collate feedback, and support follow-up actions.
• Maintain and update P&C information across our HRIS (IntelliHR), SharePoint and knowledge areas

Event Planning & Execution

• Plan, coordinate, and execute internal and external events including staff meetings, team-building activities, client events, and company celebrations.
• Manage event logistics such as venue selection, catering, transportation, accommodations, guest lists, invitations, and event setup/pack-down.
• Develop and manage event budgets, ensuring cost-effectiveness while maintaining quality.

Business & Team Support

• Provide day-to-day administrative support across all functions, helping teams manage workload during peak periods.
• Assist with basic finance and commercial administration (e.g. purchase orders, invoices, expense tracking, data checks).
• Support Sales and Marketing activities, including coordinating events, managing logistics, and assisting with materials and follow-ups.

About You

• Bring proven experience running complex, multi-site office environments
• Proven experience delivering value through effective contractor and supplier management
• Proven experience in office and event management, within a fast-paced working environment
• Strong communication, interpersonal skills and stakeholder management
• Able to maintain a high level of discretion and confidentiality
• Flexible, adaptable and detail-orientated with an innate ability to make quick decisions and seamlessly manage multiple priorities and deliverables
• Excellent organisational and time management skills
• High attention to detail, with a solid span of knowledge gained from supporting diverse corporate functions in an administrative capacity (experience supporting a People Team would be favourable).
• Ability to work independently with autonomy and as part of a collaborative, close knit team
• A creative, self-starter with an ability to think outside of the box when it comes to team events and celebrations

Why you’ll love working at SUBCO

• Great people, real impact – SUBCO’s people are its biggest strength, a team of smart, collaborative experts building infrastructure that powers global connectivity. The work is meaningful, the impact is industry‑shaping, and the opportunity to grow with us has never been bigger.
• Flex Leave (5 days) – Extra paid leave each year for life admin, study, appointments, or important moments that matter to you
• Your birthday off – Take the day to celebrate, recharge, or do absolutely nothing
• Free coffee & snacks – Quality local coffee tab and snacks to keep you fuelled (no one works well when they’re hangry)
• Pet-friendly HQ – Bring your furry (or not-so-furry) friends to the office — we love meeting them
• Inclusive parental leave – 12 weeks paid parental leave (or 24 weeks at half pay), available to all parents regardless of gender or carer status, with superannuation contributions for up to 12 months, even during unpaid leave
• Milestone rewards – Celebrate your time with us at 1, 3, 5 and 10 years