EHV Estimator in Swindon

Swindon, United Kingdom | Posted on 23/10/2025

Sinewave was founded in 2015 with a clear mission from the very start - everything that we do will always be a power for good. Since then, we have gone from a living room start-up to a leading force within the energy transformation sector. We are on a mission to help power the future more sustainably. We’re part of powering the UK’s energy transition with innovative high and low voltage electrical solutions up to 400kV. From EV charging to renewables and commercial projects, we design, deliver, and maintain networks with sustainability and efficiency at heart. Join us to drive change and make an impact!

This role:

We are looking for an EHV Estimator to come and join our growing Commercial team. This will be someone who challenges what we do daily and thrives working in a fast-paced environment with tight deadlines helping us build for the future.

Requirements

• Preparation of tenders from 33kV to 132kV
• Providing quotations and tenders for new connection works and turnkey projects utilising Sinewave’s in-house teams and supply chain.
• Key account management for new and existing customers including top level review with the clients
• Talking to manufacturers & suppliers to develop partnerships for turnkey solutions.
• Following up quotations and bringing feedback to the tendering and sales team for unsuccessful quotations.
• Attend site surveys & route walks, or tender interviews as necessary.
• Establishing key aspects associated with client requirements, providing quotations, liaising with internal departments and submitting final overview of project ability to the client.
• Evaluate supplier and subcontract returns to ensure compliance with the tender specification/documentation.
• Accurately undertake any necessary take-offs of drawings and schedules and perform data entry into the estimating software selected by the business.
• Follow all company procedures for enquiry and tender handling.
• Draft commentary regarding exclusions and clarifications associated with the return offer.
• Working with SimPro and other business systems to follow company processes and maintain data integrity.
• Assist in creation/management of processes for the Estimating & Major Projects team.

When you join you will go through our top-notch induction and onboarding process and have opportunities to develop further through our in-house training academy.

Everyone belongs here at Sinewave

At Sinewave, we are proud to be an equal opportunities employer, dedicated to creating a diverse and inclusive workplace where everyone feels valued and empowered to contribute. We know what it takes to change the world and that’s why we review all applications impartially, ensuring decisions are based solely on merit, skills, and potential. If you require any adjustments to support you through the application or interview process, please let us know—we’re here to help.

You’ll have a proven track record of:

• Proficient in the use of Productivity and Collaboration Software such as Microsoft Office, Microsoft Teams, SharePoint etc. across multiple platforms such as smart phones, tablets, laptops etc.
• Excellent communication, including ability to adapt communication styles and outstanding listening skills with ability to follow verbal and written instructions
• Can use basic information and industry knowledge/experience to pull together tenders
• Strong interpersonal skills with demonstrated ability to use own initiative as well as work collaboratively as part of a team
• Attention to detail i.e. the ability to produce high quality proposals and reports with minimal supervision.
• Ability to work autonomously and as part of a team.
• Desire to mentor, train and manage new team members as the business grows

You’ll be a successful EHV Estimator at Sinewave if you’re…

• Full UK driving license (Maximum of 3 points)
• Qualification in engineering or equivalent experience
• A level equivalent in literacy, numeracy and technology
• Must have strong market knowledge and experience within the electrical distribution sector both from 33kV up to 132kV.
• Experience working on large renewable projects and off site routes
• Proven experience in the successful tendering of large scale projects
• Experience of establishing strategic and operational partnerships.
• Wide experience of handling complex business/commercial and in confidence sensitive information both internally and externally.
• Comply with all company policies, procedures, and business ethics codes, including the anti-bribery policy, while adhering to the Environmental and Quality Management System in alignment with ISO standards and the requirements of the NERS accreditation.

So, let’s talk about what’s in it for you.

In return for everything you can bring, we can offer you an exciting place to work with a welcoming and friendly workforce. We are a fast-growing, dynamic business and even as our team grows in number, maintaining our company culture is important to us. We want to keep the feeling of being part of a small business alive, no matter how big we get.

Whether you’re based in the HQ in Swindon, field-based, or working from home we have a lot to offer:

• The usual stuff: Along with a competitive salary and life assurance, we provide enhanced pension contributions matching 5% as standard.
• 25 days + Bank Holidays
• You can even buy or sell holiday allowance, giving you the flexibility to enjoy more time with family and friends.
• Private Medical: We hope you’ll never need it, but just in case. We offer a fully comprehensive medical scheme that can extend to your family as well.
• Sinewave Academy: Our academy provides you with all of the tools and training needed to power your career.
• Sinewave Worx: Our bespoke perks platform getting you discounts and cashback at loads of high-street retailers.

If you think this is the right role for you and you want to be a part of #TeamSinewave, we’d love to hear from you.