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Join the team

Nine23 is, above all, a team of talented and experienced individuals who both share the Nine23 values, mission and vision.

As a team we have over 11 years of experience in designing, building, and operating high assurance services for some of the most demanding and discerning clients in the world. As a collective this is over a Century’s experience in tackling the nuances and complexities that bring other cyber resilient solutions to a halt – which is why we’ve earned a reputation for fixing the things other’s can’t. We would rather not have to fix other’s mistakes, but let you succeed from the get-go.

Read more about us.

Values

Secure by Design– Everything we do starts with security at its core.

Client First Delivery– We focus on your outcomes, not our outputs.

Transparency and Trust– We are open, accountable, and collaborative in every engagement.

Operational Usability– We never compromise on the end-user experience.

Assured Innovation– We evolve our solutions to meet your mission-critical needs without adding risk.

Mission

To deliver secure, resilient, and fully UK sovereign operationally critical outcomes to Defence, HM Government, National Security & Public Safety, and other highly regulated sectors.

Vision

Our vision is to be the trusted partner delivering UK Sovereign secure solutions and managed IT services to regulated & compliant marketplaces.

Our Job Openings

We are expanding and seeking dedicated team players interested in maximising their work life. Join a supportive culture that fosters personal development while building a lasting business for the future. We are in search of individuals eager to learn, prioritise end users and clients, and contribute positively. If you are keen on this opportunity, kindly reach out.

Level 2 Infrastructure Engineer – Reading

We are looking for a Level 2 Support Engineer to join the Nine23 team. This is a dual role. Primarily you will be based on-site maintaining virtualised infrastructure, Microsoft Server and endpoint devices, basic networking and support to 3rd party applications. You will monitor events, log, report or rectify faults and engage with the customer to support their on-premises IT solution. Contributing to continuous improvement plans, assisting with reviews, and feeding in lessons learnt to improve processes and practices.

You will be part of a team primarily supporting a project in the Reading area but will be expected to engage in other Nine23 projects and support activities. This role requires SC and NPPV3 clearance.

This role requires SC and NPPV3 clearance. Candidates without current clearance must be eligible and willing to undergo vetting; Nine23 will support the clearance process.

Click here to read full job description

2 x Level 2 Infrastructure Engineer – Remote 

We are looking for a Level 2 Support Engineer to join the Nine23 team. Primarily you will be working remotely, maintaining cloud services, virtualised infrastructure, M365, Azure, Microsoft Server and endpoint devices, basic networking and support to 3rd party applications. You will monitor events, log, report or rectify faults and engage with the customer to support their solution in concert with our Service Desk.

Contributing to continuous improvement plans, assisting with reviews, and feeding in lessons learnt to improve processes and practices. You will be part of a team primarily supporting Nine23 customers but will be expected to engage in other Nine23 projects and support activities.

This role requires SC and NPPV3 clearance. Candidates without current clearance must be eligible and willing to undergo vetting; Nine23 will support the clearance process.

Click here to read full job description

Pre-sales Solutions Architect (Cloud & Infrastructure)

Nine23 are seeking a highly skilled Presales Solutions Architect to support our Sales function; working with the customer, our Sales team, technical teams and service delivery team to design and position secure, compliant IT solutions for customers operating in regulated sectors (e.g., UK public sector, law enforcement and Defence sector). This role bridges Sales and Engineering, ensuring proposed solutions are technically robust, supportable, commercially viable, and aligned with regulatory requirements.

You will be representing the company in front of our customers and building relationships that push the momentum of the sales opportunities to support the delivery of exemplary services to our customers and the operational users.

Due to the nature of the role any candidate will need to have or be able to achieve SC Clearance which will need to be maintained as a condition of employment, with the potential of DV in the future.

Click here to read full job description

Project Manager

The Project Manager is responsible for leading the successful delivery of customer-facing projects, ensuring outcomes are achieved on time, within budget, and to the highest security and quality standards.

A growing portfolio of projects has given rise to a requirement for an experienced Project Manager to take the lead on the deployment of services and solutions. There are many existing projects in the delivery phase, with new projects to be onboarded within the next few months. This is a customer-facing role, managing customer expectations and ensuring excellence in the delivery of our service, supported by the Engineering Manager for the allocation of technical resources. The role reports into the Chief Operations Office and involves working with the company’s senior management team daily.

You will be representing the company in front of our customers and building relationships that push the momentum of the projects to deliver on time, quality, cost, and vision. You will be responsible for customer engagement and maintenance of the project plan(s) and will be accountable for the delivery of the project, liaising directly with internal and external audiences.

This role requires SC and NPPV3 clearance. Candidates without current clearance must be eligible and willing to undergo vetting; Nine23 will support the clearance process.

Click here to read full job description

11+ Years in

Business

Secure

Remote Working

Lots of 

Perks and Benefits

Over 12+

Cyber Experts

Our Perks and Benefits

Nine23 put people first. We want to do everything we can to help you stay motivated and help you enjoy your working life with some of our benefits we offer to our staff.

Remote Working

It’s time to stop sitting in traffic and wasting time commuting. Nine23 has a small dedicated workspace in Southampton when needed, however after a unanimous vote it was decided that all employees will continue work from home.

Training

Nine23 understands the importance of training and ensuring all team members have the opportunity to learn new and enhance their existing skills therefore Nine23 will contribute towards or fund all training course costs.

Holiday Allowance

Nine23 gives 24 days holiday entitlement (excluding public holidays) and we like to give our staff some extra time off to refresh over the Christmas holidays and spend time with your loved ones.

Staff Events

It’s important for Nine23 staff to all get together in person for staff events and parties to socialise. Don’t think awkward team building activities, think boat days out on the water and low-key curry nights!

Counselling

We offer funded counselling sessions to help improve the mental health and wellbeing of our staff. To ensure all sessions are 100% anonymous we use an external counsellor who will not disclose the employees details.

Nine23 Wardrobe

You can wear whatever you feel comfortable in, but to make those daily choices a little bit easier for you can choose our Nine23 clothing such as t-shirts, hoodies, coats and polos.

Maternity Package

We are extremely supportive of our new parents and welcoming new additions to the Nine23 family, therefore we offer an enhanced maternity support package of 100% of salary for the first 13 weeks of maternity leave.

Wellness Check-ins

We have virtual informal wellness check-in’s throughout the week. A simple “how are you?” tea break with the weekly crossword. Since working from home it is more important than ever to check-in with each other.

Our Team Members say…

Hayley M, Marketing Executive

“I am so grateful to work for a company like Nine23. For me personally, to have the enhanced maternity leave package put me at ease during a big change in my personal life. I continue to feel supported and it made the return to work so much easier!”

Rich P, Infrastructure Engineer

“It’s the people. Simply that. All of us share a vision of getting the customer what they need and doing it properly. We all help each other achieve what’s needed. For me, personally, the core principles of honesty and integrity along with putting the customer needs first is refreshing!”

Sebastian N, Infrastructure Technician

“I have worked for Nine23 since April 2021, since then I have learned so much about the IT industry thanks to them. Their work culture and passion for secure use of technology has helped me to build greater cyber security awareness. Nine23 gave me extreme amount of support, knowledge and resources needed for successful start in Cyber Security”

Listen to our CEO reflect on 2025 in our Nine23 Annual Highlights Report

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