Mecsia
Sales and Purchase Ledger Clerk

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Location - Loanhead, Scotland
Company Overview
FMS Fire and Security provide consultancy, design, tender, installation, commissioning, training, maintenance and service for single, integrated and multi-discipline electronic fire and security systems. These systems incorporate Fire Detection, Fire Extinguishing Systems, Intruder Alarms, Closed Circuit Television, Access Control, Emergency Lighting and Voice Evacuation Systems, as well as Gates, Barriers, Turnstiles, Cabling and Security Lighting.
FMS Fire and Security Ltd are a Quality Assured company certified and audited through UKAS. We hold NSI Gold status for security disciplines and also NSI Gold Fire for the BAFE SP203 scheme.
Role Overview
We are seeking a detail-oriented Sales and Purchase Ledger Clerk to manage the sales and purchase ledgers, ensuring accurate and timely processing of invoices, payments, and reconciliations, while supporting cash flow management and maintaining strong financial controls.
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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
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No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Responsibilities
Key Responsibilities:
Sales Ledger (Accounts Receivable)
Raise and process customer invoices accurately and in a timely manner Monitor customer accounts and ensure timely collection of outstanding debts Allocate incoming payments to customer accounts Reconcile customer accounts and resolve discrepancies Manage credit control processes, including chasing overdue payments Produce aged debtor reports and highlight risks to management
Purchase Ledger (Accounts Payable)
Process supplier invoices, ensuring correct coding and approvals Match purchase orders, delivery notes, and invoices (3-way matching) Prepare and process payment runs (BACS, CHAPS, or other methods) Reconcile supplier statements and resolve queries Maintain supplier records and ensure accuracy of data Manage expense claims and ensure compliance with company policy
General Accounting Duties


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Assist with month-end processes, including reconciliations Maintain accurate financial records and audit trails Support internal and external audits as required Respond to internal and external queries in a timely manner Comply with company procedures and financial regulations
Skills And Experience Required
Proven experience using Sage 50 Experience in sales and/or purchase ledger or general accounts role Strong attention to detail and high level of accuracy Ability to prioritise workload and meet deadlines Strong communication skills, particularly when dealing with clients/suppliers Problem-solving mindset with a proactive approach
Why Join Us?
Opportunity to develop within a supportive finance team Exposure to a broad range of finance processes Collaborative and dynamic working environment
Need more info?
Our Group Head of Recruitment, Yasmin will answer your questions.
07715 960949
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