Accounts Receivable Assistant | Award-Winning Design Practice | London (Hybrid)

Harmonic Finance™ | Certified B Corp; London; Hybrid; GBP 28,000 - 30,000; Full time

Job summary

A leading design practice in London seeks a detail-oriented Accounts Receivable Assistant to enhance their finance team. This role involves managing invoices, reconciling accounts, and supporting credit control processes. Ideal candidates are passionate about creativity and possess strong Excel skills.

Qualifications

• Minimum 1 year’s experience in an accounts receivable or finance role
• Good understanding of financial principles and transactional processes
• Experience in a high-volume transactional environment is a plus

Responsibilities

• Raise and issue client invoices in a timely manner
• Reconcile customer accounts and allocate incoming payments
• Assist with credit control and resolving client billing queries

Skills

Excel

Communication

Teamwork

Education

Studying towards AAT, ACCA, or CIMA

Tools

Xero

Sage

SAP

Job description

Accounts Receivable Assistant | Award-Winning Design Practice | London (Hybrid)

Accounts Receivable Assistant | Award-Winning Design Practice | London (Hybrid)

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Harmonic Finance | Certified B Corp provided pay range

This range is provided by Harmonic Finance | Certified B Corp. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Accounts Receivable Assistant | Award-Winning Design Practice | North London (Hybrid)

Harmonic are proud to be working with a multi-disciplinary design practice renowned for its work across architecture, landscape architecture, urban planning, and sustainability. The business is celebrated not only for its design excellence but also for its collaborative and values-driven culture.

They are looking for a detail-oriented and motivated Accounts Receivable Assistant to join their small but high-performing finance team. With a varied project portfolio and a commitment to environmentally conscious design, the company is an ideal home for someone passionate about creativity and purpose-led work.

You’ll report directly to the Finance Manager and play a key role in managing the accounts receivable process—from raising invoices to reconciling accounts and supporting credit control functions. This is a fantastic opportunity to take ownership of key processes while continuing your professional development in a supportive and collaborative environment.

Responsibilities:

• Raise and issue client invoices in a timely and accurate manner
• Reconcile customer accounts and allocate incoming payments
• Monitor aged debt and follow up on overdue invoices
• Assist with credit control and resolving client billing queries
• Maintain accurate financial records and documentation
• Liaise with internal teams to ensure smooth invoicing processes
• Support the month-end process with AR reports and reconciliations
• Contribute to system and process improvements where appropriate

What our client needs to see (essential):

• Minimum 1 year’s experience in an accounts receivable or similar finance role
• Good understanding of financial principles, bookkeeping, and transactional processes
• Strong Excel skills and familiarity with accounting software (e.g. Xero, Sage, SAP, etc.)
• Strong communicator and team player with a proactive approach

What we'd like to see (non-essential):

• Studying towards AAT, ACCA, or CIMA
• Background in a design, engineering, or built environment sector
• Experience working in a high-volume transactional environment

Location: North London (Hybrid – 3 days in the office after probation)

Please feel free to share this with anyone who may be interested.

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At Harmonic, we are committed to building inclusive and equitable workplaces. We welcome applications from individuals of all backgrounds and ensure every candidate is given equal consideration regardless of gender, race, disability, or sexual orientation.

Seniority level

• Seniority level

  Associate

Employment type

• Employment type

  Full-time

Job function

• Job function

  Finance, Accounting/Auditing, and Administrative

• Industries

  Construction, Engineering Services, and Architecture and Planning

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