Accounts Payable & Receiveable Specialist New London, UK

SYSTEMIQ Ltd.; London; On-site; GBP 35,000 - 55,000; Full time

Job summary

A leading sustainability-focused company is seeking an Accounts Payable & Receivable Specialist to join their finance team. In this role, you will manage the end-to-end accounts payable and receivable functions, oversee junior staff, and ensure accuracy in financial transactions. The ideal candidate will have strong accounting knowledge, excellent leadership skills, and experience in a multicultural environment.

Qualifications

• 3+ years in AP/AR or general accounting with supervisory experience.
• Experience with remote/offshore teams is desirable.
• Proficiency in ERP systems and intermediate to advanced Excel skills.

Responsibilities

• Manage end-to-end accounts payable and receivable functions.
• Oversee invoice processing and payments, ensuring compliance.
• Train and support junior AP/AR team members.

Skills

Attention to Detail

Analytical Thinking

Time Management

Cross-Cultural Communication

Leadership

Education

Degree in Accounting or Finance

Tools

Xero

MS Excel

Job description

Accounts Payable & Receiveable Specialist

London, UK

Company Description Systemiq is a system-change company committed to achieving the Sustainable Development Goals and the Paris Agreement by transforming markets and business models in five key systems: nature and food, materials and circularity, energy, urban areas, and sustainable finance. As a certified B Corp, we combine strategic advisory with high-impact, on-the-ground work, partnering with business, finance, policy-makers, and civil society to deliver system change. Since our start in 2016, we have grown to more than 350 people working across locations in Brazil, Germany, France, Indonesia, Netherlands, UK and the US. We are a pure-play sustainability-focused company, dedicated exclusively to sustainability projects.

What We DoSystemiq orchestrates system change in clean energy, circular material solutions, and sustainable land use. This involves re-imagining industries, re-configuring the energy world, and regenerating ecosystems to address systemic failures, unlocking economic opportunities that benefit business, society, and the environment.

We are seeking a detail-oriented and highly organized Accounts Payable & Receivable Specialist to join our finance team. This role is responsible for the end-to-end management of both accounts payable and receivable functions, while also overseeing and supporting a small team of junior finance staff based in the UK and overseas. The ideal candidate will possess strong accounting knowledge, leadership skills, and the ability to work effectively across time zones and cultures.

Core Responsibilities

Accounts Payable (AP):

• Review and approve vendor invoices processed by overseas team members, ensuring accuracy and compliance.
• Manage payment cycles, including the preparation and execution of payments (checks, ACH, wires).
• Reconcile vendor accounts and resolve escalated issues or discrepancies.
• Ensure proper documentation and month-end closing support for AP activities.
• Serve as liaison between suppliers and Systemiq fee earners.

Accounts Receivable (AR):

• Oversee customer invoicing process and ensure timely issuance of invoices by the team.
• Monitor receivables, follow up on overdue accounts, and manage escalations or complex collection issues.
• Review incoming payments and verify accuracy of application to customer accounts.
• Collaborate with internal departments to address billing inquiries or disputes.
• Provide daily oversight, support, and training to junior-level AP/AR team members.
• Ensure adherence to internal controls, company policies, and service-level expectations.
• Act as the primary point of contact for overseas staff and facilitate effective cross-border collaboration.
• Participate in performance reviews, goal setting, and continuous process improvement initiatives.
• Maintain accurate financial records and assist in preparing monthly reports and reconciliations.
• Support audits by compiling relevant documentation and reports.
• Identify opportunities to streamline and standardize AP/AR processes across regions.
• Leadership & Mentorship: Proven ability to guide and support remote team members with clarity and accountability.
• Cross-Cultural Communication: Effective communicator with the ability to collaborate across different time zones and cultures.
• Attention to Detail: Diligent in maintaining accuracy and consistency in financial records and processes.
• Analytical Thinking: Skilled at identifying issues, evaluating options, and implementing effective solutions.
• Time Management: Capable of balancing multiple priorities and managing a distributed team to meet deadlines.
• Technical Proficiency: Strong working knowledge of accounting systems (e.g., Xero) and MS Excel.
• Professional Integrity: Maintains confidentiality and demonstrates a strong ethical foundation.
• Customer Service Orientation: Responsive and professional in interactions with both internal and external stakeholders.

Qualifications:

• 3+ years of experience in AP/AR or general accounting, with at least 1 year in a supervisory or team lead role.
• Experience managing or working with remote/offshore teams is highly desirable.
• Proficiency in ERP systems and intermediate to advanced Excel skills required.
• Proficiency in Xero is a plus.

Diversity & InclusionAt Systemiq, we believe that diversity and inclusion are crucial to system change and our mission. We are committed to:

• Embedding diverse and inclusive practices in all aspects of our work, including recruitment, performance management, and people processes and policies.
• Providing a supportive environment where everyone can be themselves and perform at their best, regardless of background, personality, gender, sexual orientation, race, mental health, religion, or other characteristics.
• Supporting our people through all life stages, accommodating personal priorities, and promoting a sustainable approach to work and life.

Reward and RecognitionThe remuneration and benefits package will reflect the successful candidate's experience and expertise.

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