Southern Ecological Solutions (SES)
Invasive Weeds Surveyor/Project Manager

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The Vacancy
Invasive Weed Surveyor / Project Manager
Location: East of England – hybrid working across site, office and home
Salary: £36,000–£55,000 per annum, dependent on experience
Benefits: Company vehicle and fuel card, phone, laptop, discretionary annual bonus and flexible working
About the Role
Here at SES part of the wider RSK Group, we are looking for an experienced, detail-focused Invasive Weed Surveyor / Project Manager to join our growing team in the East of England.
The role will involve surveying, assessing and managing invasive non-native species, with a particular focus on Japanese knotweed. You will work across residential, commercial and development sites, providing clients with clear technical advice, accurate reports and practical management solutions.
This is a varied hybrid role combining site surveys, office-based reporting, project management and home working.
Key Responsibilities
- Carry out surveys for Japanese knotweed and other invasive non-native species.
- Produce clear and accurate survey reports and Invasive Weed Management Plans.
- Advise clients on appropriate treatment, control and remediation options.
- Manage treatment programmes across residential, commercial and development sites.
- Oversee excavation, removal, burial and disposal works.
- Supervise routine in-situ herbicide treatment programmes.
- Liaise with clients, contractors, consultants and site teams.
- Monitor project progress, costs, quality and compliance.
- Maintain accurate site records, photographs and supporting documentation.
- Support the preparation of quotations, tenders and technical proposals.
- Ensure work is delivered safely and in accordance with relevant legislation, guidance and company procedures.
The role will primarily cover the East of England, with occasional travel to other parts of the UK depending on project requirements. Some overnight stays may be required.
Essential Skills And Experience
- Proven experience surveying and managing Japanese knotweed and other invasive non-native species.
- CSJK qualification.
- PA1 and PA6AW pesticide application qualifications.
- Valid CSCS card.
- Experience producing technical reports and management plans.
- Knowledge of relevant waste, environmental and biosecurity requirements.
- Strong attention to detail, with excellent organisational and prioritisation skills.
- Ability to work independently and collaboratively as part of a team.
- Confident communication and client-facing skills.
- A practical and proactive approach to problem-solving.
- Flexibility to travel across the East of England and occasionally elsewhere in the UK.
- Full UK driving licence.
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Desirable Skills And Experience
- SSSTS qualification.
- Experience managing excavation or remediation projects.
- CAD or digital mapping experience.
- Experience preparing quotations or supporting tender submissions.
Where appropriate, training may be provided to obtain or renew relevant qualifications.
Company Benefits
Along with a competitive salary of £36,000–£55,000, depending on experience and qualifications, you will enjoy a wide range of company benefits including:
- Company vehicle and fuel card.
- Company phone and laptop.
- Discretionary annual bonus based on personal and company performance.
- Hybrid and flexible working.
- Ongoing training and professional development.
- The opportunity to join a supportive, ambitious and growing team.
To apply for this exciting new role today please visit our careers page or for more information do get in touch with our team today.
RSK is an Inclusive Employer!
#RSKGroup #SES #InvasiveWeeds #Surveys #ProjectManagement #Ecology
About Us
We are a multi-disciplinary consultancy specialising in ecology, habitat management, arboriculture, and landscape design, based in Essex, UK. Since our company’s founding, we have grown to become a leading UK provider of specialist ecological, arboricultural and landscape design consulting services. We are known for devising sustainable, pragmatic, and client-focused solutions. Our diverse portfolio includes clients in the fields of infrastructure, development, conservation charities and individual bespoke projects. Our business is continuing to expand into new markets, and we are forming new teams to meet future challenges.
SES has a team of 52 qualified ecologists, landscape architects, arboriculturists and coordination and support staff. Currently, we’re working with Barratt Homes and the RSPB on a large residential housing development, Kingsbrook, a case study in the biodiversity net gain best practice principles for development. Our ecological work includes due diligence reporting, land appraisals, habitat design and creation, protected species surveys and ecological impact assessments. Landscape design and planning services teams specialise in strategic projects, combining an innovative and context-led approach to design.


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SES is part of the RSK Group, a leading integrated environmental, engineering, and technical services business providing dynamic, multidisciplinary services to a wide range of sectors. RSK was founded in 1989 and has grown considerably since then.
At RSK, we operate as a group of businesses that work together seamlessly, aiming for growth through diversification. Our strategy helps us build a strong and resilient business, capable of weathering external challenges, while also providing greater value to our clients and more opportunities for our employees.
Since the beginning, our philosophy has remained the same: employ, develop and reward talented individuals. People are crucial to our company, and we recognise that our success hinges on our colleagues' growth. We're committed to preserving RSK's people-first culture, promoting innovation, and fostering a supportive and caring environment for collaboration. At RSK, we want you to be part of our successes and help you reach your career aspirations. We take pride in offering employees fulfilling and challenging careers by promoting ongoing growth and empowering individuals to excel.
We are committed to fostering an inclusive workplace that welcomes individuals from all backgrounds, experiences, and perspectives. We firmly believe that embracing and celebrating the diversity in our workforce makes us a stronger and more innovative company.
By providing workplace adjustments, we make it easier for people to confidently explore and pursue our career opportunities and recognise that flexibility is key to fostering a dynamic and thriving workplace. Many of our office-based positions benefit from a flexible working arrangement, allowing our team members to achieve a balance between professional and personal commitments.
We actively encourage applications from candidates of all genders, races, ethnicities, ages, neurotypes, religions or beliefs, sexual orientations, and those with disabilities.
If you're passionate about making a difference, join us as we work together to build a brighter, more equitable, and sustainable future for all. Do you have what it takes?
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