Job Costings Administrator

About the role

We are supporting a well‑established, growing business in Harlow with a hybrid (3 days office, 2 days home) full‑time position as a Job Costings Administrator. The role sits within the Business Services team and works closely with operational teams, finance, contract managers and engineers to ensure projects are accurately costed, invoiced and remain commercially profitable.

Key responsibilities

• Cost completed works against agreed contract schedules and rates.
• Prepare, review and verify customer invoices and valuations.
• Conduct profitability analysis across multiple contracts.
• Investigate and resolve valuation and invoicing queries with internal teams and customers.
• Identify opportunities to improve commercial performance and operational efficiency.
• Support contract managers and operational teams with financial reporting.
• Maintain strong relationships with finance, engineers, sub‑contractors and clients.
• Ensure all work complies with internal quality standards and client KPI requirements.

Required profile

• Previous experience in administration, finance, costing or commercial support.
• Excellent attention to detail and high level of accuracy.
• Strong organisational and planning abilities.
• Effective communication skills and confidence to liaise with internal departments and customers.
• Proactive problem‑solving mindset and ability to manage multiple priorities to deadlines.

Required skills

• Microsoft Excel
• Microsoft Office suite

What we offer

• Salary £22,000‑£27,500 per annum.
• £500 annual bonus and profit‑share scheme (≈1.5% of salary).
• Hybrid working model – 3 days in the office, 2 days remote.
• Opportunity to join a supportive, growing organisation.