Senior Wastewater Network Modeller
Senior Wastewater Network Modeller
Location: Remote (occasional travel to sites in the South East – Brighton/Falmer)
Contract Type: Full-time, 37 hours per week
Salary: Competitive + bonus + full benefits package
The Opportunity
We are looking for a skilled Senior Wastewater Network Modeller to join a forward-thinking team delivering innovative, sustainable, and cost-effective wastewater infrastructure solutions. You'll play a key role in shaping designs, mentoring junior staff, and applying cutting-edge modelling techniques to solve complex challenges in the water sector.
Flexible working arrangements can be considered to support a positive work-life balance.
Key Responsibilities
- Lead or contribute to wastewater modelling projects from outline to detailed design.
- Ensure that all designs are environmentally sustainable and technically sound.
- Provide specialist input on hydraulic calculations, specifications, and modelling deliverables.
- Identify opportunities to improve processes, adopt digital design solutions, and drive innovation.
- Collaborate with internal teams and supply chain partners to ensure technical excellence.
- Mentor and support the development of junior engineers.
- Deliver work within agreed budgets and timelines, ensuring value and quality.
About You
Qualifications:
- Degree (MEng/BEng/BSc) in Engineering, Environmental Science, or a numerate discipline.
- Professional membership of a relevant institution, or actively working towards it.
Experience:
- Proven experience in wastewater network modelling within the UK Water Industry.
- Sound understanding of hydraulic modelling software and relevant design tools.
Skills:
- Strong problem-solving, leadership, and decision-making skills.
- Excellent written and verbal communication.
- Proficient in Microsoft Office and modelling platforms.
- Collaborative mindset and a passion for technical excellence.
What’s on Offer
- Competitive salary + company and performance-related bonus
- Up to 11% employer pension contribution
- 25 days annual leave + bank holidays
- Life assurance (4x salary)
- Health cash plan & digital GP service
- Salary sacrifice electric car scheme (after 6 months)
- Cycle to work scheme
- Two paid volunteering days per year
- Discounts with 800+ retailers
- Fully funded eye tests & annual flu jab
- Study support for relevant qualifications
- Flexible return-to-work and parental leave options
- Occupational health services
- Free parking at main office locations
by email - as they go live.
by email - as they go live.
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Contracts Manager - Water Metering
Role: Contracts Manager - Water Metering
Location: Yorkshire - Remote / Hybrid
Salary: Up to £55,000 + (Neg)
Type: Permanent employment with Sisko Group
The Opportunity
Sisko Group are recruiting for a highly skilled, people manager to run our prestigious water metering contract in Yorkshire.
This is an exceptional opportunity for a candidate who has both on-tools and end client management experience as the role will involve both the day to day management of our field based workforce as well as being the direct link with our client contacts.
The Benefits
- Basic annual salary up to £55,000 p/a (Negotiable)
- Bonus Schemes
- Working on a long term prestigious AMP water meter contract
- Industry leading holiday package
- Company van or car allowance
- Hybrid role (Home / Client / Sisko South Yorkshire Office)
What do you need to have?
- A proven career history in person management within metering (water or dual fuel smart metering gas and electric)
- Technically competent, so you can "talk the talk" with an engineering field force
- Computer Literate
- A full UK driving licence, max 6 penalty points
- Live in commuting distance of West Yorkshire and Sheffield
Who are Sisko?
- We are an established, financially sound, utilities biased, workforce solutions provider
- Specialised in metering (water and dual fuel gas and electric)
- Ambitious business with long term contracts that guarantee job security
The Application Process
- Send your cv via the contact details provided
- Suitable applicants will receive an initial call to discuss the role in more detail
- A more detailed teams interview will be held with a Sisko Group Director
- An in-person interview will be held with the Sisko Board (possibly in our Hampshire Head Office)
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Field Service Engineer – Wastewater (Mechanical)
Field Service Engineer – Wastewater (Mechanical)
Location: Southampton
Salary: £38 – 42k
Contract Type: Permanent
The Opportunity
Are you a Field Service Engineer experienced in working with heavy fabrication? Join a global environmental engineering company supporting major UK wastewater sites. This field-based role offers excellent earning potential, industry-specific training, and clear progression pathways.
Key Responsibilities
- Conduct site visits for mechanical inspections, servicing, installations, and repairs.
- Work from mechanical engineering drawings to confidently strip, service, and install new and existing equipment.
- Produce detailed site reports upon job completion.
- Coordinate with the Regional Field Manager and internal teams to ensure efficient issue resolution.
- Build strong working relationships with clients, suppliers, and subcontractors.
What You'll Need
- NVQ Level 2 or higher in a relevant engineering discipline.
- Strong mechanical engineering skills and experience in a heavy machinery environment.
- TIG welding experience (advantageous, not essential).
- Willingness to travel and work in a field-based, customer-facing role.
What's On Offer
- Competitive base salary with realistic OTE of £40,000 – £45,000
- Door-to-door pay structure
- Fully equipped company van and tech package
- Company bonus scheme
- Enhanced holiday entitlement
- Ongoing training and development opportunities
- Comprehensive employee benefits
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Mechanical Fitter
Mechanical Fitter
Location: Regional (projects across the South of England)
Contract Type: Permanent
Salary: £38 – 45k
Hours: Full-time
The Opportunity
We’re looking for experienced Mechanical Fitters to join our Asset Management & Technical Services team, supporting the delivery of maintenance services across a range of infrastructure projects. This is an excellent opportunity to work with a trusted and innovative clean water technology provider with a strong reputation in the UK water sector.
About the Company
We are a leading clean water technology company delivering modular build solutions, innovative products, and specialist services across the UK water industry. With over 2,000 employees across our group, we offer full in-house capabilities from design to delivery. Our focus on sustainability, innovation, and people development is central to everything we do.
Key Responsibilities
- Carry out a wide range of mechanical maintenance and installation tasks.
- Work collaboratively within a team, following clear instructions and safety procedures.
- Operate safely and effectively in varied environments, including exposure to outdoor weather conditions.
- Apply an understanding of hydraulic, pneumatic, and hydrostatic systems in field-based maintenance.
- Read and interpret technical drawings and schematics to diagnose and resolve faults.
- Ensure all work meets high standards in quality, safety, and environmental compliance.
What You’ll Need
- SVQ/NVQ Level 3 or City & Guilds in a relevant mechanical discipline.
- Proven mechanical aptitude with knowledge of industrial mechanical systems.
- Ability to plan, sequence, and execute component removal and reinstallation.
- High standards for self-checking and workmanship.
- A full UK driving licence is essential.
What We Offer
- Industry-leading salary (based on experience)
- 31 days holiday (rising to 33 days after 2 years)
- Holiday buy/sell scheme
- Company pension scheme
- Cycle to Work scheme
- Discounted national gym membership
- Professional fees paid
- Employee discount platform
- Access to occupational health and mental health support
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Principal Wastewater Hydraulic Modeller
Principal Wastewater Hydraulic Modeller
Location: Falmer (Brighton) / Hybrid (occasional site visits across the South East)
Hours: Full-time, 37 hours per week (Monday to Friday)
Salary: Competitive + bonus + benefits
The Opportunity
We are seeking an experienced Principal Wastewater Hydraulic Modeller to lead the delivery of innovative wastewater projects. You will guide multidisciplinary teams, manage stakeholder engagement, and drive the development of digital and sustainable solutions within a leading infrastructure programme.
If you're passionate about shaping the future of water management—but unsure if you meet every requirement—please get in touch. We’re open to discussing flexible working options to support individual needs.
Key Responsibilities
- Lead project teams in the design and delivery of wastewater hydraulic modelling projects.
- Provide technical direction, oversee QA, and ensure governance standards are upheld.
- Prepare and review technical documentation, including specifications, calculations, and reports.
- Liaise with stakeholders, clients, and delivery partners to ensure alignment and satisfaction.
- Manage project budgets and ensure on-time delivery within scope and standards.
- Drive innovation through continuous improvement, digital design, and best practice adoption.
- Support and mentor junior engineers and contribute to talent development across the team.
About You
- Qualifications & Experience
- MEng/BEng/BSc or HNC in Engineering, Environmental Science, or a numerate discipline.
- Chartered Engineer (or equivalent) through a relevant professional institution.
- Extensive experience delivering wastewater hydraulic modelling projects within the UK water sector.
- Deep understanding of hydraulic modelling theory and practical application.
Skills & Attributes
- Proficient in Microsoft Office and relevant modelling/design software.
- Strong communicator with the ability to explain complex ideas to technical and non-technical audiences.
- Self-starter with strong problem-solving capabilities and collaborative mindset.
- Demonstrated leadership in cross-functional teams with mentoring experience.
- Full UK driving licence required.
What’s on Offer
- Competitive salary + company and performance-related bonus
- Up to 11% employer pension contribution
- 25 days annual leave + bank holidays
- Life assurance (4x salary)
- Health cash plan and digital GP service
- Salary sacrifice electric car scheme (after 6 months)
- Two paid volunteering days per year
- Occupational health support
- Free eye tests and annual flu jab
- Cycle to work scheme
- Discounts with 800+ retailers
- Free parking and access to modern offices with excellent local amenities
- Flexible return-to-work and parental leave options
- Study support for job-related qualifications
- Join a team committed to engineering excellence, innovation, and environmental sustainability.
