Accounts Payable Clerk
RES
Company Overview
Renewable Energy Systems (RES)
HeadquartersHertfordshire, United Kingdom
Founded1981
SizeApproximately 2,500 employees globally (source: linkedin.com). No publicly disclosed revenue figures for 2023.
What They Do
RES focuses on a diverse range of renewable energy technologies, including wind (both onshore and offshore), solar photovoltaic (PV), battery energy storage systems (BESS), and green hydrogen solutions. The company provides comprehensive services that span the entire lifecycle of renewable energy projects, from initial development and engineering to construction, operations and maintenance (O&M), asset management, and financing. Their expertise allows them to deliver utility-scale projects that meet the growing demand for sustainable energy solutions across various markets, including utilities, corporates, and governments (source: res-group.com).
Projects & Track Record
RES has an impressive portfolio of completed projects, including the 278MW King Mountain Wind Farm in Texas, which was completed in 2001 and was the world's largest at the time. Other notable projects include the 90MW Inner Dowsing offshore wind farm in the UK and the 270MW Lincs offshore wind farm, both of which have contributed to RES's reputation as a leader in the renewable energy sector. The company has also developed significant solar projects, such as the 30MW Webberville solar park in Texas, showcasing its versatility in renewable energy solutions (source: res-group.com).
Recent Developments
In recent years, RES has made significant strides in expanding its project portfolio and capabilities. In 2024, the company secured a Generation License for the 70MW Elmacık Wind Power Plant in Turkey and advanced the development approval for the Tarong West Wind Farm in Queensland, Australia, which is set to provide power for approximately 230,000 homes. Additionally, RES has partnered with Octopus Energy on a £3 billion investment in green hydrogen in the UK, further solidifying its commitment to innovative renewable energy solutions (source: keyfactsenergy.com).
Working There
RES offers a variety of roles across multiple departments, including development, engineering, construction, operations and maintenance, asset management, finance, and legal services. The company emphasizes a collaborative culture, with a commitment to diversity and inclusion, and provides a stimulating work environment for its employees. The global headquarters in Kings Langley, UK, features modern facilities designed to support employee well-being, such as bike racks and showers, promoting a healthy work-life balance (source: res-group.com).
Last updated on Feb 23, 2026 | Report an issue
Job Description
We're the world's largest independent renewable energy company. We're guided by a simple yet powerful vision: to create a future where everyone has access to affordable, zero carbon energy.
We know that achieving our ambitions would be impossible without our people. Because we're tackling some of the world's toughest problems, we need the very best people to help us. They're our most important asset so that's why we continually invest in them.
RES is a family with a diverse workforce, and we are dedicated to the personal professional growth of our people, no matter what stage of their career they're at. We can promise you rewarding work which makes a real impact, the chance to learn from inspiring colleagues from across a growing, global network and opportunities to grow personally and professionally.
Our competitive package offers a wide range of benefits and rewards.
The position
The Northern European Asset Management department is a growing team whose sole purpose is to deliver financial support services under Management Service Agreements (MSAs) across multiple clients owning renewable assets under management including onshore Wind Farms, Solar Farms and storage farms.
The AM Finance department is managing over 200+ Companies and a team size of 37 across 17 clients and three regions.
This role is for an Accounts Payable Clerk and will work alongside the other Accounts Payable team members and report to the Accounts Payable & Treasury Manager.
The main requirement of this role is to have Swedish speaking and reading skills as they will be primarily responsible for clients in Sweden.
The business continues to grow rapidly which therefore requires an individual that can quickly adapt to changes in priorities and ensure that an allocated portfolio of client always receives the quality service that they have come to expect.
The team is effectively an outsourced finance business partnership, which amongst many other services includes delivering on the following key tasks for each portfolio: transactional finance duties including accounts payable, accounts receivable & treasury.
Management accounts with comparisons and analysis to budget, cashflow forecasts, distribution calculations, annual budget preparation, bank loan compliance, financial statement preparation including audit process management and tax return oversight.
It is essential that a strong control environment and professional scepticism is maintained throughout the team and processes and procedures are robust, well documented and are constantly monitored.
This role is responsible for delivering high-quality Accounts Payable and Treasury support across a portfolio of entities, ensuring accurate invoice processing, controlled payment execution, and effective cash management within a robust control environment.
Please note that this position is initially being offered on a six-month fixed-term contract, with the potential to become a permanent role thereafter.
The team's work includes but is not limited to
- Maintain supplier master data and independently verify bank detail changes to prevent fraud in line with company policy
- Process supplier invoices accurately, ensuring correct coding and timely posting (PO and non-PO)
- Act as a key point of contact for supplier and internal queries, resolving issues efficiently and escalating where required
- Route invoices through approval workflows and proactively chase and resolve delays
- Upload and process payments via banking platforms and chase relevant approvals
- Ensure all payments comply with dual approval controls and validate payment batches prior to release
- Process urgent and manual payments with appropriate approvals and supporting documentation
- Perform daily bank reconciliations and resolve discrepancies promptly
- Monitor cash balances and upcoming payments, highlighting risks or unusual activity
- Take ownership of assigned ledgers, ensuring they are accurately maintained, reconciled, and cleared of aged items
- Support month-end activities
- Ensure compliance with internal controls, audit requirements, and fraud prevention
- Identify and escalate IFS/system issues, supporting continuous improvement and efficiency
Knowledge/Skills
- Fluency in Swedish and English
- Strong understanding of accounts payable and treasury processes
- Knowledge of UK and overseas VAT
- Experience working in a multi-entity environment
- Understanding of shared services or outsourced finance models
- High attention to detail with a focus on accuracy and right-first-time delivery
- Ability to manage high-volume workloads and competing priorities
- Strong communication skills with confidence engaging internal and external stakeholders
- Proficient in Excel and finance systems (IFS or similar ERP preferred)
- Proactive, solutions-focused approach with strong problem-solving ability
- Strong awareness of financial controls and risk management
Experience/Qualifications
- Minimum 2 years' experience in a transactional finance role (AP/Treasury)
- Experience with IFS or similar ERP systems preferred
- Experience working across multiple entities (essential)
- Studying towards or holding a recognised qualification (e.g. AAT) is beneficial
At RES we celebrate difference as we know it makes our company a great place to work. Encouraging applicants with different backgrounds, ideas and points of view, we create teams who work together to solve complex problems and design practical solutions for our clients. Our multiple perspectives come from many sources including the diverse ethnicity, culture, gender, nationality, age, sex, sexual orientation, gender identity and expression, disability, marital status, parental status, education, social background and life experience of our people.
Apply now
Job expired?Please let RES know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
Apply now
Job expired?Please let RES know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
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About the role
August 12, 2026
August 18, 2026
Contract position
Flexible
Company
Solar Energy, Wind Energy, Energy Storage
- Newcastle, United Kingdom
- Glasgow, Scotland, United Kingdom
- Kings Langley, United Kingdom
Minimum 2 years' experience in a transactional finance role
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