Our Business

Siltbuster Ltd is the UK’s leading responsive wastewater treatment company, serving an extensive range of Clients across the UK and Overseas. “Water Quality Matters” - the business ensures that environmental protection is provided by delivering complete package plant solutions to a breadth of sectors.

The business has grown significantly over the last few years; reaching a wider client base and enhancing the levels of service that we provide. Therefore, we seeking to continue to build our team; investing in skills, knowledge & experience to not only enhance the services we can provide, but support career paths helping develop and engage our staff for the sustained growth of the business.

About The Role

Siltbuster is looking for a dynamic and experienced Proposals Manager to oversee the development of robust, technically sound proposals and tenders, ensuring effective governance and alignment with operational delivery.

As the ideal candidate will have a strong commercial understanding of proposals for technical solutions, from initial conception to handover to the Sales Team. You will report the Commercial Director and initial key responsibilities will include:

Oversee the development of technical proposals and tenders, ensuring quality, and alignment with client requirements whilst being commercially focused
Provide technical leadership, guidance, and support to Solutions Engineers, ensuring robust and practical engineered solutions are developed in line with client and operational requirements
Provide and maintain clear guidance for effective product selection across routine rental and sales activities
Lead the technical review and assurance of proposed treatment solutions, ensuring design integrity, risk considerations, and compliance with applicable standards and company governance processes
Undertake/lead on initial contract review on tenders and bidding activity, liaising with legal counsel as appropriate
Lead technical engagement with Clients during tender and design activities, providing confidence in proposed approaches and delivery capability
Oversee laboratory operations, ensuring robust quality control procedures and reliable, timely service delivery output

About you

We are seeking candidates who are passionate about making a difference in the water-environmental sector, with practical and positive outlook.

Proven experience within the water and wastewater treatment industry is essential, with a strong expertise in process design and engineered solutions. Excellent leadership skills managing and developing a high-performing, technical engineering team is required.

Qualifications, Skills & Experience

Degree qualified &/or experience in a relevant discipline (e.g. Civil, Chemical, or Environmental Engineering)
Significant experience in water and wastewater treatment, with strong expertise in process design and engineered solutions
Proven track record in leading and delivering complex technical proposals and tender submissions from concept through to award
Demonstrable experience reviewing and assuring technical solutions, including design, costing, and risk considerations
Experience working cross-functionally with Sales, Operations, Engineering, and Projects to ensure solution feasibility and delivery alignment
Exposure to technical governance, standards, and approval processes within an engineering or proposals environment
Experience supporting or mentoring engineers, with the ability to provide technical guidance and oversight
Strong understanding of commercial considerations, including cost estimation, whole life cost, and value-driven solutions
Working knowledge of relevant regulations, environmental compliance, and industry standards within the water sector
Experience of laboratory or testing environments (desirable)
Knowledge of contract forms (e.g. NEC) and bid processes (desirable)
Full UK driving licence

What we can offer you

We understand balancing work and life commitments isn’t always easy, that’s why we’ve designed our benefits package to support you in all areas of life.

Competitive salary and eligibility for company bonus scheme
25 days holiday + 8 Bank Holidays with increasing annual leave entitlement for long service
Medicash Scheme – medical expenses scheme (access to 24hour online GP services)
Pension scheme
Employee assistance programme (EAP) & access to Mental Health First Aiders
Employee Discount Scheme (discounts/vouchers for supermarkets, high street shops, holidays and more)
Employee Referral Scheme
3x your annual salary life insurance (DIS)
Free on-site parking, with employee EV charging available.

This role is not open to Agencies - Please no calls or emails - Thank you.

EDI Statement

Workdry is committed to encouraging equality, diversity, and inclusion among our workforce, and eliminating unlawful discrimination.

We value transparency, respecting others and understanding differences. We give full and fair consideration to all applicants, regardless of age, disability, gender reassignment, race, religion or belief, sex, sexual orientation, marriage and civil partnership, and pregnancy and maternity.

As part of your recruitment journey, we are happy to support requests for reasonable adjustments.