Office Manager (part time)

Charlie Oscar; London Borough of Southwark; On-site; GBP 18,000 - 22,000; Part time

Benefits offered by this job

Bonus every 6 months

Wellness allowance

Pension plan

Holiday 25 days pro rata

Birthday off

Team socials

Cycle to Work

Eye care vouchers

Office treats

Opportunity to help build something

Job summary

Charlie Oscar in London is seeking an Office Manager for three days a week to run the front of house, coordinate facilities, IT and welcome new starters.

You’ll partner with our Talent and Finance teams, plan events, manage budgets, and help build a positive, fast-paced agency culture.

Qualifications

• Experience working in a marketing or advertising agency office; prior Office Manager not required.
• Naturally highly organised and efficient; you’re the go-to person for getting things done.
• Calm under pressure with good ability to juggle priorities.

Responsibilities

• Run front of house, keep the office welcoming, organised and well presented.
• Manage facilities, suppliers, maintenance, utilities and office supplies.
• Coordinate deliveries, kitchen upkeep and shared spaces; own meeting room setups and basic troubleshooting.
• Be first point of contact for office issues and emergencies; manage office budgets with finance.
• Manage Google Workspace, Microsoft accounts, Slack, and shared tools; provide hands-on IT support.

Skills

Highly organised

Proactive

Calm under pressure

Hands-on approach

Tools

Google Workspace

Microsoft Office

Slack

Job description

OFFICE MANAGER (PART-TIME, 3 DAYS A WEEK)

READY TO DO WORK YOU’RE PROUD OF?

Run the office at one of London’s most ambitious independent agencies, three days a week. You don’t need the job title already. You need to be the person who’s naturally organised, gets things done and keeps everything running without being asked.

At Charlie Oscar, we’re not your typical digital marketing agency. We’re a team of big thinkers, bold doers and collaborative problem-solvers. We partner with some of the world’s most ambitious brands to help them outsmart, outpace and outgrow the competition.

How do we do it? We blend data science and creativity to make smarter decisions and create work that makes an impact. The numbers give us clarity. Our creativity wins hearts, builds brands and drives growth.

Life at Charlie Oscar is fast-paced and full of chances to learn and grow. You’ll work alongside some of the sharpest minds in the industry, on work for global brands.

We make time for fun too. There’s weekly run club, book and chess clubs, charity fundraisers, Thursday drinks and team socials, so there’s always something to get involved in.

Most importantly, we hire for attitude and culture add, not just experience. We want curious, ambitious people who challenge the status quo, work hard and bring fresh ideas.

Sound like your kind of place?

ABOUT THE ROLE

Our Office Manager keeps the agency running. You’re the warm welcome at the door, the first call when something breaks, and the person behind the moments that make CO feel like CO.

WHAT YOU’LL BE GETTING STUCK INTO

Office & Facilities

• Run front of house and keep the office welcoming, organised and well presented.

• Manage facilities, suppliers, maintenance, utilities and office supplies.

• Handle day-to-day coordination: deliveries, kitchen upkeep and shared spaces.

• Own meeting room setups, resets and basic troubleshooting.

• Be the first point of contact for office issues and emergencies, from a leak to a broken toaster.

• Manage office budgets and expenses with our finance team.

Systems & IT

• Manage our Google Workspace, Microsoft accounts, Slack and shared tools.

• Give hands-on tech support and work with our external IT provider when needed.

• Keep internal documentation up to date.

New Starters

• Get new starters set up for day one: digital accounts, laptops, desks and office inductions.

• Work with our Talent team to make every first day a good one.

Events & Culture

• Plan and run agency-wide events and celebrations, managing suppliers, budgets and logistics.

• Bring the small moments to life: pancakes with all the toppings on Pancake Day, Halloween treats, cocktails for our monthly cocktail hour.

WHAT WE’RE LOOKING FOR

• Experience working in a marketing or advertising agency office. You don’t need to have been an Office Manager before.

• Naturally highly organised and efficient. You’re the person people come to when they need something sorted.

• Calm under pressure and good at juggling priorities.

• Proactive. You spot problems and fix them before anyone asks.

• Confident with Google Workspace, Microsoft Office, Slack and similar tools.

• Comfortable keeping track of budgets, suppliers and expenses.

• Hands-on and happy to roll up your sleeves, whether that means planning an event or unblocking a sink.

AI

At Charlie Oscar, we want people who use AI to work smarter and faster. You don’t need to be a specialist. We value people who already use AI tools day to day, whether that’s comparing suppliers, planning events, writing up processes or building templates. Ask “how can this be better?” and “how can this be quicker?”, and use AI to help answer.

BENEFITS

• Competitive salary (pro rata) plus a discretionary performance-based bonus paid every 6 months

• Wellness allowance, including Bupa private health care

• Pension plan

• 25 days’ holiday (pro rata), plus bank holidays and flexible time over Christmas

• Birthday off

• Regular team socials and an annual company away day

• Cycle to Work Scheme with Forest Bikes

• Eye care vouchers

• Regular office treats and surprises

• The chance to help build something exceptional

WHAT MAKES US US: OUR VALUES

At Charlie Oscar, our values show up in how we work, how we treat each other and how we build something brilliant together.

Make It Happen
Momentum matters. Progress beats perfection every time. Treat It Like Your Own
Think like an owner. Care for every detail as if it were your money, your brand, your business. Grow Together
Build the business, lift your team and invest in your own growth along the way. Be Brave
We create space for bold thinking, confident decisions and the freedom to back yourself.