We are looking for a proactive and highly organised Office Manager to join our internal operations team and play a central role in keeping 31ten running smoothly. This is a broad, hands-on role that touches almost every part of the business — from managing our office and supplier relationships to supporting our directors and ensuring our team has everything they need to do their best work.

This role is well suited to someone who is energised by variety, takes genuine ownership of the areas they manage, and uses their initiative to anticipate needs and drive things forward without waiting to be asked.

Reports to: People Manager

Working pattern: Full-time - 30 or 37.5 hours per week, with at least 3 days per week in the office.

Work-life balance is important to us. We recognise that everyone has interests and commitments outside of work, and flexible working arrangements are actively supported.

About us:

31ten is an agile, independent consultancy and certified B Corp. Trusted by our clients and partners, we've been named as one of the UK's Leading Management Consultancies by the Financial Times every year since 2020.

We work in partnership with the public sector to make places better for the people that live, work, and learn in them. Integrity, inclusivity, and social and environmental awareness are at the heart of what we do — we collaborate with our clients to deliver sustainable change, meaningful impact, and better outcomes.

About the role:

As Office Manager, you will be the operational backbone of the firm — the person who makes sure everything works, and who others can rely on to get things done. You will work closely with our directors and senior leadership team, providing hands-on support across office management, executive assistance, knowledge management, events, people administration, and business development support.

No two days will look exactly the same. You will need to be comfortable switching between planning an office relocation, preparing materials for a leadership meeting, and supporting a new joiner's onboarding — all with the same level of care and precision.

What you can expect in this role...

Office & facilities management: You will take ownership of our office environment day-to-day, including project managing an upcoming office relocation. You will manage the office costs budget, oversee third-party contracts (IT, cleaning, and other suppliers), and handle device and hardware procurement and maintenance.
Executive & leadership support: You will provide exec support to the Directors and help run key leadership meetings — preparing agendas, capturing decisions and actions, and ensuring the right follow-through. You will also coordinate team-wide meetings and internal communications.
Knowledge management and system support: You will own our knowledge management infrastructure — keeping our intranet and other tools organised, up-to-date, and genuinely useful. You will also maintain and update internal policies and templates, spotting opportunities to improve how we store and share information as we grow.
Events & logistics: You will support the team to plan and deliver internal and external events — sourcing venues, arranging catering, managing logistics, and making sure everything runs smoothly on the day. You will also manage travel and accommodation bookings for the team.
Marketing support: You will support our business development activity through organising client and partner meetings, and by keeping our CRM records up to date, to enable our senior team to effectively nurture key client relationships.
Business development support: You will support our core team to identify business development opportunities to be shared across our different service areas and help bid teams to source information for competitive tenders.
People & HR support: You will manage the practicalities of bringing people into and out of the business — onboarding, offboarding, background checks, and referencing — working closely with our People function and ensuring every experience is positive and well-organised.

About you:

A great 31tenner is ambitious, proactive, and thinks outside the box. We're looking for someone who combines strong organisational instincts with the maturity and confidence to work independently, manage upwards, and take genuine ownership of a broad remit.

Experience & knowledge

Several years in an operations, office management, bid manager or senior EA/business support role
Experience in a professional services or consultancy environment is a strong advantage
Proven ability to manage multiple priorities independently in a fast-paced setting
Experience managing supplier contracts and third-party relationships
Confident with Microsoft 365 products
A working knowledge of our core systems – Scoro, Xero, HubSpot, TeamTailor and Claude (beneficial, not essential)
Familiarity with onboarding, offboarding, and basic HR processes (beneficial, not essential)

Skills & capabilities

Highly organised, with strong attention to detail and a systematic approach to managing information
Clear and confident communicator — written and verbal — with the ability to support senior leaders effectively
Intuitive and digitally confident – enjoys using a range of IT & digital systems
An interest in how tools and technology (including AI) can improve how we work
Quick to learn new systems and happy to test, learn and teach others
Proactive and solutions-focused, able to spot what needs doing and take ownership of it
Comfortable working with ambiguity and adapting quickly when priorities shift

Personal attributes

Values-driven, with a genuine interest in the mission and culture of the business
Pragmatic and trustworthy
Warm and collaborative, someone people come to with their problems
Resilient and calm under pressure

We hire the person first, experience second, shaping the role around the individual. We recognise that every candidate's experiences and background will be different — we value a broad, diverse range of perspectives.

Benefits:

25 days annual leave + bank holidays
Flexi bank holidays - the option to substitute religious holidays for a date that is meaningful to you
The option to purchase up to 5 additional annual leave days (per year)
Private healthcare package with BUPA and the ability to add family members
Matched pension up to 6% of gross salary
Enhanced maternity and shared parental leave
Annual performance-based bonus (discretionary)
A friendly and supportive working environment with regular opportunities for collaboration, team socials and modern offices with excellent facilities for staff in a central location
Annual team away day and Christmas party
Opportunities to get involved in our social value programme of volunteering and pro-bono support to causes that align with our mission
Continuous opportunities for career development and training, including support to pursue professional qualifications (that align to our work)
Salary sacrifice cycle-to-work, tech at home and electric vehicle scheme
Access to our Payroll Giving scheme, enabling tax‑efficient donations to charities of your choice

Our interview process:

1st stage - Initial phone call with our People Lead
2nd stage - Skills & experience interview - virtual via Teams, with two members of the hiring team
3rd stage - Values & behaviours interview - in-person, with two members of our Senior Leadership Team

Office Manager