103 Best network system administrator Jobs in London (October 2026)

IT Technician / IT User Support Technician

About the role We are looking for a reliable and customer-focused IT Technician to provide day-to-day technical support to users and help keep our computer systems, devices and software running smoothly. The successful candidate will respond to support requests, diagnose technical issues and explain solutions clearly to colleagues or customers. Key responsibilities • Respond to IT support requests by phone, email, helpdesk system or in person., • Diagnose and resolve common hardware, software, operating system and connectivity issues., • Set up, configure and maintain desktop computers, laptops, printers, mobile devices and related equipment., • Install and update approved software, operating systems and security patches., • Assist with user accounts, passwords, access permissions and basic Microsoft 365 or similar business applications., • Troubleshoot network, Wi-Fi, VPN and peripheral-device problems, escalating complex faults when required., • Record support requests, troubleshooting steps and resolutions accurately in the ticketing system or IT records., • Help maintain data security, backups and IT procedures in line with company policies., • Provide clear guidance to users and help them use technology safely and effectively., • Monitor equipment, report recurring issues and support routine IT maintenance. Essential skills and experience • Good problem-solving and troubleshooting skills., • Clear communication and a helpful, customer-focused approach., • Basic knowledge of Windows computers, common business software and computer hardware., • Ability to prioritise requests, manage time and keep accurate records., • Willingness to learn, follow procedures and escalate issues appropriately. Desirable • Previous experience in an IT support, helpdesk or technical support role., • Knowledge of Microsoft 365, user account administration, networking or remote-support tools., • A relevant IT qualification or recognised technical certification. What we offer Pension and Sick Pay How to apply Please submit your CV and a short summary of your relevant IT skills and experience. We welcome applications from candidates who can demonstrate practical troubleshooting ability and a commitment to helpful, reliable IT support.

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Job Description Secretary / Office Administrator AA Mortgage Gateway Job Title: Secretary / Office Administrator Location: Kensington, London Company: AA Mortgage Gateway Position Type: Full-Time AA Mortgage Gateway is an independent mortgage and protection brokerage that provides mortgage, protection, buy-to-let, commercial finance, and property finance solutions. We pride ourselves on delivering excellent customer service and building long-term relationships with our clients and business partners. Role Overview We are seeking a highly organised, professional, customer-focused Secretary/Office Administrator to support the business's day-to-day operations. The successful candidate will play a key role in ensuring the office runs smoothly, maintaining client relationships, supporting mortgage applications, and providing excellent administrative support to advisers and management. Key Responsibilities Administrative Duties • Manage incoming and outgoing telephone calls, emails, and correspondence., • Maintain accurate client records and filing systems., • Prepare letters, reports, meeting notes, and other business documents., • Manage office diaries, appointments, and meeting schedules., • Handle incoming and outgoing post. Client Support • Act as the first point of contact for clients and introducers., • Welcome clients attending face-to-face meetings., • Schedule appointments and follow up on enquiries., • Maintain regular communication with clients throughout the mortgage process., • Obtain and organise client documentation. Mortgage Processing Support • Assist advisers with mortgage and protection applications., • Chase lenders, solicitors, estate agents, surveyors, and clients for updates., • Upload and organise documentation through lender portals., • Monitor case progress and maintain accurate records., • Assist with preparing compliance documentation and suitability records. Marketing & Business Development Support • Manage social media updates and company communications., • Support networking events and business development activities., • Help maintain the company website and online presence., • Prepare marketing materials and client newsletters. Compliance & Data Protection • Ensure all information is handled in accordance with GDPR regulations., • Assist with audit and compliance requirements., • Maintain confidentiality of client information at all times. General Office Support • Coordinate office meetings and events., • Assist with recruitment administration when required., • Support directors and advisers with additional administrative projects. Person Specification Essential Skills • Excellent written and verbal communication skills., • Strong organisational and time-management abilities., • High attention to detail., • Professional and friendly telephone manner., • Ability to prioritise workload effectively., • Strong IT skills including Microsoft Office (Word, Excel, Outlook)., • Ability to work independently and as part of a team. Desirable Experience • Previous experience in a mortgage brokerage, financial services, banking, or estate agency environment., • Knowledge of mortgage application processes., • Experience using CRM systems., • Understanding of GDPR and compliance procedures. Qualifications • GCSEs (or equivalent) including English and Maths., • Business Administration qualification desirable., • CeMAP knowledge or experience within mortgage services would be advantageous but not essential. Personal Attributes • Professional appearance and manner., • Trustworthy and discreet with confidential information., • Proactive and self-motivated., • Positive, enthusiastic, and customer-focused., • Strong problem-solving skills. Salary & Benefits • Competitive salary dependent on experience., • Performance-related bonus opportunities., • Ongoing training and development., • Career progression opportunities within AA Mortgage Gateway., • Supportive and professional working environment. Working Hours Monday to Friday, 9:00 am – 5:30 pm, with occasional flexibility required to meet business needs. To apply, please submit your CV and a covering letter explaining why you would be a great fit for AA Mortgage Gateway.

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The Travelling Curator

Sales & Operations Executive - Luxury Interiors & Collectibles

The Travelling Curator is seeking an energetic, exceptionally organised and commercially minded Sales & Operations Executive to help establish and grow a distinctive luxury interiors and collectables business. The founder has personally sourced and invested substantially in an international collection of furniture, art, lighting, decorative objects, jewellery and timepieces. He is currently developing the brand, brochures and presentation and now requires an experienced individual to work alongside him in organising the business and actively bringing the collection to market. This is a varied, hands-on role combining administration, business organisation and sales. The successful candidate will help create the systems and structure required to manage the collection effectively while taking responsibility for identifying suitable buyers, developing opportunities and converting enquiries into completed sales. Relevant industry experience and an established professional network are essential. We are looking for someone who already understands the luxury interiors, art, design or collectables market and has genuine contacts they can lawfully approach from the beginning. This may include interior designers, private clients, collectors, property professionals, stylists, dealers and other relevant trade contacts. The right person should be able to study the collection, recognise which pieces may suit particular clients or projects and immediately begin making intelligent introductions. Sales and business development responsibilities: • Reviewing the collection and identifying the most suitable potential buyers for individual pieces, • Using an established professional network to introduce the collection to appropriate clients and contacts, • Identifying and approaching interior designers, private collectors, property professionals and relevant trade buyers, • Matching particular pieces to suitable interiors, projects, clients and commercial opportunities, • Finding effective sales channels for the different categories within the collection, • Generating new leads and following up every credible enquiry consistently, • Building and maintaining an organised database of prospective buyers and professional contacts, • Arranging private appointments and presenting pieces professionally, • Negotiating confidently while protecting the value of the collection, • Turning interest into completed sales, • Maintaining a clear sales pipeline showing enquiries, offers, next actions and progress, • Working closely with the founder on pricing, priorities and sales strategy Administration and organisation responsibilities: • Working with the founder to organise existing files, documents, photographs and correspondence, • Establishing clear digital filing and record-keeping systems, • Creating and maintaining a complete and accurate master inventory, • Recording descriptions, measurements, photographs, costs, selling prices and availability, • Organising invoices, shipping documents and other supporting information, • Helping coordinate photography, brochures, product listings and sales materials, • Managing appointments, correspondence and agreed follow-up actions, • Coordinating with suppliers, shipping companies and other service providers when required, • Ensuring that business and product information is current, accurate and easy to locate Essential experience and qualities: • Relevant experience in luxury interiors, interior design, furniture, art, galleries, auction houses, jewellery, watches, collectables or another high-value sales environment, • An established professional network of relevant contacts who can be lawfully approached, • Evidence of successfully developing client relationships and completing high-value sales, • Exceptional organisation, administrative ability and attention to detail, • Strong commercial judgement and the ability to identify the right buyer for a particular piece, • A proactive and entrepreneurial approach, with the confidence to create opportunities independently, • Persistence and discipline in following leads through to a conclusion, • Professional written, telephone and face-to-face communication, • Competence with spreadsheets, databases, online platforms and digital content, • The ability to work independently while collaborating closely with the founder, • A genuine appreciation of design, quality and craftsmanship Remuneration: This is initially a part-time position offering a basic hourly payment for the agreed administrative, organisational and sales-development work, together with an attractive 10% commission on qualifying completed sales. Each item will have an agreed minimum selling price. Commission will be earned when a sale is completed at or above that authorised price and the customer’s cleared payment has been received. For example: • A completed £10,000 sale earns £1,000 commission, • A completed £20,000 sale earns £2,000 commission, • A completed £50,000 sale earns £5,000 commission This structure provides a basic payment for the work involved in organising and developing the business, together with substantial earning potential for someone who can use their experience, contacts and commercial ability to achieve results. This is an early-stage, founder-led business rather than a large company or conventional retail operation. It is an opportunity for a resourceful and well-connected individual to work directly with the founder, take meaningful responsibility and contribute directly to building a successful and distinctive business. When applying, candidates should briefly describe their relevant industry experience, the type of professional network they have developed and examples of high-value sales or client relationships they have personally managed.

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Knights Hill Capital

Mortgage Administrator

About Us Knights Hill Capital is a boutique mortgage brokerage based in London. We work with a wide range of clients and cases, from first-time buyers purchasing their first home through to experienced landlords with multi-million-pound property portfolios. Our work covers residential mortgages, buy-to-let and investment property finance, alongside protection for individuals and businesses. We are a small and growing firm, so we are looking for someone who is comfortable working as part of a close-knit team and who genuinely enjoys the administrative and case-management side of mortgage advice. The Role We are looking for an experienced Mortgage & Protection Administrator. Experience in financial services is a big plus! This is very much an administration and case-management position. We are looking for someone who enjoys being organised, keeping on top of cases, dealing with clients and lenders, and making sure the administrative and compliance side of the business is handled properly. You will work closely with our mortgage brokers and take responsibility for the administration of cases from the initial stages through to mortgage offer and completion. Your day-to-day responsibilities will include: • Liaising with clients to obtain the documents and information required for their mortgage application., • Reviewing and organising client documentation so cases are properly prepared for the broker to review., • Submitting Decisions in Principle and full mortgage applications to lenders based on the broker's advice and instructions., • Managing applications after submission, including dealing with lender requirements, outstanding documents and case updates., • Keeping clients informed and following up where further information or documentation is required., • Completing the required compliance administration for each case in line with our network's requirements and the broker's guidance., • Maintaining accurate and well-organised client records on our CRM and internal systems., • Submitting and progressing protection applications, including Life Insurance, Critical Illness Cover and other personal or business protection products., • Liaising with lenders, insurers and other parties involved in a case where required., • Keeping on top of multiple cases at different stages and making sure nothing gets missed. What We're Looking For We are particularly looking for someone who is naturally organised and takes pride in good administration. You should be comfortable picking up the phone and speaking with clients, lenders and insurers, and confident using different systems throughout the working day. You will also need: • Strong attention to detail., • Good written and verbal communication skills., • Confidence dealing with clients over the telephone., • Experience using mortgage CRM systems and lender portals., • Experience submitting DIPs and mortgage applications., • A good understanding of mortgage compliance and file requirements., • Experience with protection applications and the associated administration and compliance., • Strong general IT skills., • The ability to manage your own workload and priorities., • A proactive approach to chasing outstanding information and progressing cases., • The ability to work independently while being part of a small team. Because we are a boutique firm, we are looking for someone who is comfortable with the demands of a growing business and is willing to take ownership of their area of responsibility. Right to Work Applicants must already have the right to work in the UK. We are not able to provide visa sponsorship for this position. What We Offer • £28,000 - £30,000 per annum, • Hybrid working – London office and home working, • Permanent, full-time position, • A stable role within a small, growing mortgage and property finance brokerage, • The opportunity to become an important part of the day-to-day running of the firm as the business grows We're looking for someone who genuinely enjoys mortgage administration, likes keeping things organised and takes satisfaction from making sure cases are handled properly from start to finish. If that sounds like you, we'd be interested in hearing from you.

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Top Advice Limited

Business Development Manager

Business Development Manager Company: Top Advice Ltd Salary: £30,000 – £39,000 per year, depending on experience Job Type: Full-time, In-Person Expected Start Date: 16 November 2026 About Us Top Advice Ltd is an established consultancy providing professional services including accountancy, HR, business management support, and business-related training and qualifications. We work with a diverse portfolio of clients across the UK and internationally, supporting businesses with their development, operations and long-term growth. Job Summary We are seeking an experienced Business Development Manager to play a key role in expanding our client portfolio and developing new commercial opportunities. The successful candidate will be responsible for identifying new markets and business opportunities, developing strategic client relationships, negotiating commercial arrangements and contributing to the company's long-term growth strategy. This position requires substantial business development experience, strong commercial awareness and the ability to manage professional relationships independently. Key Duties and Responsibilities • Develop and implement business development strategies aligned with company objectives, • Identify, evaluate and pursue new business and market opportunities, • Generate and manage a strong pipeline of prospective clients, • Develop and maintain long-term relationships with key clients and business partners, • Lead commercial discussions and negotiate terms with prospective clients and partners, • Conduct market and competitor analysis to identify potential areas for growth, • Prepare professional business proposals, presentations and commercial documentation, • Develop strategies to increase client acquisition, retention and revenue, • Identify opportunities to expand existing services and enter new markets, • Establish and monitor business development targets and performance indicators, • Analyse business development performance and prepare reports for senior management, • Work closely with HR, Accounts and Administration teams to ensure effective delivery of new business, • Represent the company at professional meetings, networking events and business engagements Essential Skills and Experience • Minimum 3 years' relevant professional experience in business development, commercial management, sales management or a comparable role, • Proven experience in generating new business and developing commercial relationships, • Strong negotiation and client relationship management skills, • Experience preparing business proposals and presenting commercial opportunities, • Strong analytical, strategic and problem-solving abilities, • Excellent written and verbal communication skills, • Ability to manage multiple priorities and work independently, • Strong proficiency in Microsoft Office, CRM systems and business reporting tools Qualifications A bachelor's degree or equivalent qualification in Business, Management, Marketing, Finance, Economics or a related discipline is preferred. Candidates with substantial relevant professional experience will also be considered. Desirable Experience Experience within business consultancy, professional services, accountancy, HR, B2B services, education or training would be advantageous. What We Offer • Competitive salary of £30,000 – £39,000 per year, depending on experience, • 28 days' paid annual leave, including public holidays, • Workplace pension scheme, • Professional development opportunities, • Opportunities for career progression and increased commercial responsibility, • Supportive and professional working environment Application Information Application Deadline: 30 October 2026 Expected Start Date: 16 November 2026 To apply, please submit your CV and cover letter, outlining your relevant experience and suitability for the position.

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