Office Manager / PA

📍London

Here at ARM, we have an exceptional opportunity for an Office Manager & PA, to be at the heart of our business. This is a fantastic opportunity to shape a seamless, welcoming, and high-performing office environment while providing first-class support to employees, senior leaders, clients, and stakeholders. As the central hub of the office, you’ll keep everything running smoothly day to day, creating a space where people feel supported, valued, and set up for success. You will lead by example to ensure the office operates efficiently and reflects ARM’s values of going the extra mile and supporting and including everyone.

✨How You’ll Make an Impact
You’ll thrive in this role if you’re naturally organised, proactive, and detail-driven, with a knack for staying one step ahead. You enjoy solving problems, keeping things on track, and creating order in a fast-paced environment.

You’ll confidently manage multiple priorities, remain calm when plans change, and build strong relationships with stakeholders across all levels. With a continuous improvement mindset, you’ll always be looking for smarter, more efficient ways of working and won’t be afraid to bring new ideas to the table.

In this role, you’ll also play an important part in ensuring ARM meets its GDPR and data protection obligations. You’ll handle personal data responsibly and in line with company policies, ensuring information relating to employees, clients, and partners is managed securely and appropriately at all times.

You’ll be expected to stay up to date with best practices, including completing annual GDPR training, helping to maintain a culture of compliance and accountability across the business.

📌What you’ll be doing

Office Operations

• Serving as first point of contact for the agency

• Direct reports: FOH Coordinator (London) & Office Coordinator (Leeds)

• Ensure the office is operating smoothly and looks tidy for visitors and staff

• Restaurant booking & catering requests

• Active member of the EDI committee

• Working closely with IT to provide support and manage stock levels

• Managing switchboard, greeting visitors, setting up meeting rooms etc

• Onboarding: sorting access fobs, working with IT, office tour etc

• Minute taking on external calls

• Completing Adhoc office requests for Leeds and Amsterdam

• Tracking all costs associated with office management accurately

Health & Safety

• Responsible for office Health & Safety

• Fire warden & first aid training

• PAT testing, fire risk assessment, fire extinguisher servicing etc

Supplier Management

• Working closely with third-party suppliers

• Cleaning / office maintenance / building management / AV management

• Oversee contracts, service and resolve any issues to the best of your ability

Events

• Lead the organisation and execution of company events

• All agency overnight Away Day every two years

• Manage and track costs and budgets

PA Support & Travel

• Proactively manage and coordinate the diaries of the MD, CEO & CSO

• Track and submit expenses

• Provide comprehensive support to the SLT where needed

• Coordinate domestic and international travel: flights, trains, accommodation etc

• Managing VISA applications and travel documents ensuring compliance with entry requirements

💥What we are looking for

• 2–3 years’ experience in office management, PA, or a similar operational role

• Exceptional organisational skills, with the ability to manage multiple priorities seamlessly

• Strong attention to detail, with a hands-on and solution-focused approach

• Confidence working with senior leaders and stakeholders at all levels

• Excellent written and verbal communication skills

• Experience managing suppliers, office operations, and events

• Tech-savvy, with the ability to quickly learn new systems and tools

• Resilient, adaptable, and able to remain calm in a fast-paced, ever-changing environment

• A proactive mindset, with a passion for improving processes and ways of working

• High levels of discretion and professionalism when handling sensitive information

✨ Why Join ARM?

ARM is one of the UK’s fastest-growing performance marketing agencies. We are now over 130 specialists across London, Amsterdam and Leeds, strategists, planners, creatives and data specialists united by curiosity, craft and a passion for growth.

We manage £250m+ UK and £100m+ EU media spend across TV, digital, offline and SEO, working with brands including Brooks, Omaze and Norton, alongside exciting high-growth start-ups.

We strongly encourage integration across Digital, Data, Systems, Offline and SEO to create an unfair competitive advantage for our clients and meaningful development opportunities for our people. At ARM, you’ll benefit from rapid progression, continuous training, genuine ownership, and a friendly, supportive culture.

🎓 Learning at Our Core

Training and development sit at the heart of everything we do. Every team member benefits from a personalised development plan, structured coaching, knowledge‑sharing sessions, external and partner‑led training, and access to industry‑recognised qualifications including IPA Foundation and TV Masters.

💙 Culture & Belonging

ARM is known for developing exceptional talent in a friendly, inclusive environment. We move fast, support each other fully and value every voice. You’ll be encouraged to take ownership, grow your expertise and build a long‑term career.

Our Benefits

🌟 Competitive salary + bonus
🏖️ 25 days holiday + bank holidays
🎉 Annual company away day & regular socials
🥤 Drinks fridge, free fruit, Monday breakfast & Friday lunches
🩺 Private healthcare with Vitality + 50% Virgin Gym discount
🙌 Flexi Fridays + birthday time off

🏆 Long‑term service awards (up to £10k) + sabbaticals
👨‍👩‍👧‍👦 Life cover (4× salary), enhanced sick pay & income protection
💼 Perkbox perks & wellbeing programme
🚆 Season ticket loan + cycle‑to‑work scheme
🎓 Media, technical & leadership training
📈 Clear progression and development roadmap

Accelerate and fast-track your career with All Response Media.

Here at All Response Media we pride ourselves on being committed to offering equal opportunities to all potential employees and have zero tolerance for discrimination. All Response Media fosters a business culture where ideas and decisions from all people help us grow, innovate, create the best stories and be relevant in a rapidly changing world.