JN PARTNERS LTD
Costing Administrator

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Company Description
JN PARTNERS, London. Working as part of the administrative team you will be responsible for supporting the Costing Manager and the business on all costing administration. JN PARTNERS LTD offers a collaborative environment where analytical thinking and attention to detail are highly valued.
Role Description
The Costing Administrator is a part-time, on-site role based in the London Area, United Kingdom. This role will be 25 hours a week over 5 days (office-based). This role is responsible for collecting, validating, and entering cost-related data into internal systems, including excel ensuring accuracy and consistency across reports and financial documentation.
Day-to-day tasks include:
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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?
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Graduate Consultant — 2026 Scheme
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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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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.
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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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- Preparing cost summaries
- Supporting project teams with cost estimates
- Updating pricing and rate tables
- Assisting with the reconciliation of cost records against invoices or budgets


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The Costing Administrator will collaborate with shareholders and finance staff, respond to queries about cost information, and help maintain organized, audit-ready records. The role may also involve generating basic cost analysis reports and suggesting improvements to data collection and documentation processes.
Qualifications
- Strong numerical skills and experience working with cost data, budgets, or financial records.
- Advanced proficiency in spreadsheet tools and basic data management software (e.g., Microsoft Excel, databases).
- Excellent attention to detail, with the ability to identify inconsistencies and correct errors in documentation.
- Organizational and time-management skills to handle multiple tasks and meet deadlines in a consulting environment.
- Clear written and verbal communication skills to present cost information and respond to internal queries.
- Ability to work effectively on-site as part of a team and to follow established procedures and controls.
- Previous experience in administration, finance support, or costing roles is beneficial.
- Relevant education in business, finance, accounting, or a related field is an advantage but not mandatory.
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