Payroll Administrator à Grande-Bretagne

Tetra Tech is a leading provider of consulting and engineering services worldwide. It supports government and commercial clients with innovative solutions focused on international development, climate mitigation and adaptation, environmental sustainability, biodiversity, conservation, land reform, infrastructure, urban development, transport, water, and resource management. With 27,000 associates worldwide in over 120 countries, Tetra Tech’s capabilities span the entire project cycle.

Tetra Tech International Development Europe is Tetra Tech’s European business unit focused on International Development. We are based in London with offices in Kenya, Nigeria, Poland, and the Netherlands. We deliver international development programmes focused on economic growth, governance and justice/security, and infrastructure, for clients such as the UK’s Foreign, Commonwealth and Development Office (FCDO) and Department for Business, Energy and Industrial Strategy (BEIS), the United Nations, the European Union, the European Investment Bank and other donors and funding agencies. We also have a strong in‑house Monitoring, Evaluation, Research and Learning Practice consisting of 35 evaluators, statisticians, economists, social scientists, and research managers.

We are committed to maintaining business practices that honour and protect the dignity and integrity of everyone with whom the company conducts business, employs, and serves. As a leading international development organisation, we fully support continued progress and improvement within the development community to make development initiatives more effective. We are also committed to addressing various cross‑cutting issues relevant to international development to ensure that all people can access and enjoy the benefits of our activities.

• We value our people: we support the development of our people, ensuring that the environments in which they work are fair, safe, and flexible.
• We deliver quality results: we go the extra mile to deliver value for our clients, impact for beneficiaries and a fair financial return for the company to grow sustainably.
• We collaborate effectively: we work authentically with our clients, beneficiaries and partners and strive to always communicate clearly and openly.
• We encourage creativity and innovation: we encourage entrepreneurial thinking and provide the freedom, support and investment for new ideas and initiatives.
• We operate with integrity: We will do the right thing, be honest and keep to our commitments.

London, (Near Kings Cross Station, Coals Drop Yard)

We operate a hybrid working policy, with people working from the office two days a week and the rest working from home. People may choose to come in more often.

Fixed Term, Full Time Contract until the 30 June 2027

Monday to Friday, 37.50 hours per week.

Competitive Salary & Benefits

The role sits in the Business Development Unit that provides support across all practice areas in developing sustainable, effective project designs and proposals. As part of the Business Development Unit, you will lead on the attraction, identification and selection of candidates to fill short and long-term positions on international development projects, both current and prospective. The role will focus on recruiting expert teams for primarily FCDO proposals and occasionally ongoing projects.

You will support and advise the bid teams on how to best construct their project teams and present them to the client, including drafting team profiles and CVs for bids. You will provide advice on talent attraction and develop and build/maintain expert networks and relationships with Tetra Tech associates. You will play a key role in managing, maintaining, and advising teams on the use of our recruitment database, providing support and training in the recruitment process, compliance, and best practices.

Tetra Tech’s recruitment methodologies are continually evolving to reflect the needs of clients and the industry. The successful candidate must have a desire to stay current with market trends. This is an exciting opportunity for anyone with a business development mindset who is looking to thrive within a friendly and dynamic team.

Work in partnership with all departments at Tetra Tech International Development Europe to determine staffing needs, candidate matches, and the demands of positions, forming the most effective teams with strong, relevant expertise while ensuring value for money for international development projects.

• Conduct tailored searches for specialist consultants who are critical to meeting our clients’ requirements on bids, and actively implement programmes
• Expand Tetra Tech’s network of consultants and advisers in target sectors and countries.
• Update and manage consultant records in the organisation’s consultant/recruitment database.
• Provide input, offer guidance, and apply expertise to develop strategies that streamline recruitment systems for enhanced effectiveness and efficiency.
• Design and facilitate candidate assessments (including competency and behaviour-based interviews and phone screens, technical exercises and presentation exercises).
• Utilise social media to advertise job openings, attract top candidates, and foster meaningful relationships.
• Develop and deliver training to teams on best practices for compliant international recruitment.
• Support the Costing Manager in developing benchmarks for consultant rates.
• Negotiate fee rates for all consultants to ensure the client obtains good value for money

Previous experience in recruitment in an international context, preferably in an international development context.

• Understanding the recruitment process (preferably within a fast-paced environment).
• Excellent verbal and written communication skills.
• Strong interpersonal skills and a keen eye for detail.
• Excellent working knowledge of popular job boards and social media sites (LinkedIn).
• Working knowledge of Boolean searches (X-Ray search knowledge desirable).
• Experience working with an Application Tracking System (ATS); knowledge of Taleo is an advantage.

Demonstrate relevant work experience in providing high-quality recruitment services in relevant sectors; and/or

• Degree or certification in a relevant subject (business, operations, human resources, international development and associated social sciences).

9 January 2026

Applicants must already have the legal right to work in the UK; we are not able to provide visa sponsorship for this position.

In accordance with the Equality Act 2010, Tetra Tech prides itself in a workplace culture that complies with and ensures the workplace is free from discrimination, harassment, bullying, racism, and hate speech of any form regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief, marriage, and civil partnerships. We encourage all applicants from different backgrounds to apply for this role.

Disability Confident is a UK government scheme that supports employers in creating and fostering diverse and inclusive workplaces. We have self‑identified as registered disability confident participants.

If you use assistive technology (such as a screen reader) and need a vision of this document in a more accessible format. Please contact a member of the Human Resources department in the UK by emailing Disability.Confident@tetratech.com.

Tetra Tech International Development has robust policies and guidelines which exemplify our commitment to safeguarding and technical excellence in gender equality. Our team of dedicated GEDSI advisers work closely with our staff and partners to ensure a context-specific and consistent approach is applied to all of our programmes to improve the livelihoods of the world’s most marginalised groups.