Part-Time Office Manager/Team Assistant - Energy Infrastructure Start-Up

Oriel Partners
London

Part-time: (~20 hours/week) with flexibility around scheduling, but generally requiring availability across 5 days/week.

Hybrid working: 2–3 days in the office in Aldgate (typically Tues–Thurs, flexible)

This is a broad and hands-on role combining office management, team support, events coordination, communications/marketing support and ESG/culture initiatives. We are looking less for a traditional EA profile, and more for someone who enjoys taking ownership across a wide range of operational and organisational responsibilities.

Key Office Manager responsibilities:

  • Office management and supplier coordination
  • Team support, onboarding and administrative processes
  • Internal and external event coordination
  • ESG and culture initiatives
  • Marketing and social media support
  • Diary, travel and general organisational support where required
  • Helping improve internal processes and keeping the team organised

The ideal Office Manager will be:

  • Proactive, resourceful and highly organised
  • Comfortable working in a fast-moving entrepreneurial environment
  • Strong communicator with excellent interpersonal skills
  • Happy to “muck in” across a variety of tasks
  • Experienced across operations, events, communications and/or office management
  • Confident using modern workplace tools and social media platforms

A brilliant opportunity for a capable and engaging Office Manager/Team Assistant looking for a varied role within an exciting growth business.

Posted 2026-04-27

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