Commissioning Engineer

Sinewave; Swindon; On-site; GBP 45,000 - 75,000; Full time

Benefits offered by this job

25 days + Bank Holidays

Private Medical

Life assurance

Sinewave Academy

Sinewave Worx

Enhanced pension contributions 5%

Job summary

Sinewave in Swindon is recruiting a Commissioning Engineer to join our growing engineering team. You will drive commissioning activities from planning through to handover for LV and HV electrical systems up to 132kV on ICP, solar and BESS projects.

You will test protection schemes, coordinate energisation, and ensure safety compliance while collaborating with DNOs, IDNOs, and client teams. This role offers a dynamic, fast-paced environment with opportunities for advancement.

Qualifications

• Strong knowledge of HV plant protection and control
• Systematic fault-finding and problem-solving at site
• Clear written and verbal communication with clients and teams
• Plan and prioritise complex commissioning activities with records
• Proficient use of commissioning test equipment and software
• Safety leadership and attention to detail

Responsibilities

• Deliver commissioning of LV upto 132kV electrical systems across ICP projects, including Solar and BESS installations.
• Configure, test and fault-find protection and control schemes (overcurrent, earth fault, line differential).
• Plan and support energisation activities with switching plans and safety docs.
• Develop and maintain commissioning plans, test sheets and risk controls.
• Interface with DNOs/IDNOs for compliance and acceptance of arrangements.
• Lead design-to-commissioning handover and participate in reviews and planning.

Skills

HV protection systems

Fault-finding

Commissioning tests

Client communication

Documentation control

IT reporting tools

Tools

Commissioning test equipment

SCADA interfaces

Electrical test software

Job description

Sinewave was founded in 2015 with a clear mission fromthe 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 withinthe energy transformation sector. Not bad,eh!

We are on a mission to help power the future more sustainably. Butdon't just take our word for it, we are the only B-Corp Certified ICP in theworld.

We’re part of powering the UK’s energy transition with innovative highand low voltage electrical solutions up to 400kV. From EV charging torenewables and commercial projects, we design, deliver, and maintain networkswith sustainability and efficiency at heart. Join us to drive change and makean impact!

This role:

We are looking for a Commissioning Engineer to come and joinour growing Engineering team.

This will be someone who challenges what we do daily and thrivesworking in a fast-paced environment with tight deadlines helping us build forthe future.

An idea of what you'll be doing:

• Deliver commissioning of LV upto 132kV electrical systems across ICP projects, including Solar and BESSinstallations.
• Configure, test andfault-find protection and control systems, including overcurrent, earth fault,line differential, sensitive earth fault, G99 and G100 schemes.
• Plan and supportenergisation activities, including switching plans, safety documentation andcoordination with authorised persons.
• Develop, review and maintaincommissioning plans, procedures, inspection and test plans, test sheets andrisk controls.
• Interface with DNOs andIDNOs to demonstrate network compliance and secure acceptance of protection andcommissioning arrangements.
• Lead the design to commissioning handover and provide technicalinput to design reviews, constructability reviews and project planning.
• Participate in siteinspections, factory and site acceptance testing, witness testing and client ornetwork-operator hold points.
• Commission and testtransformers and switchgear up to 132kV, associated protection systems, SCADAinterfaces and network communications.
• Undertake or coordinatecable testing, including VLF, oversheath and DC pressure testing whereapplicable.
• Diagnose and resolvetechnical issues during commissioning and early operational phases, escalatingmaterial risks promptly.
• Produce accuratecommissioning reports, test records, as-built information, defect schedules andhandover documentation.
• Support operations andmaintenance contracts through planned maintenance, fault response and technicalinvestigation.
• Ensure work complies withrelevant legislation, industry standards, client specifications, DistributionSafety Rules and Sinewave procedures.
• Promote safe systems of workand stop work where conditions, controls or authorisations are inadequate.

When you join you will go through our top-notch induction andonboarding process and have opportunities to develop further through ourin-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 feelsvalued and empowered to contribute. We know what it takes to change the worldand that’s why we review all applications impartially, ensuring decisions arebased solely on merit, skills, and potential. If you require any adjustments tosupport you through the application or interview process, please let us know - we’rehere to help. #TeamSinewave

Requirements

You'll have a proven track record of:

• Strong technical knowledge of HV plant, protection, control andcommissioning practices up to 132kV.
• Systematic fault-finding and problem-solving skills, with soundtechnical judgement under site constraints.
• Clear written and verbal communication with clients, projectteams, DNOs, IDNOs, contractors and operational stakeholders.
• Ability to plan and prioritise complex commissioning activitieswhile maintaining accurate records and programme visibility.
• Confident use of commissioning test equipment and supportingsoftware.
• Strong safety leadership and the confidence to challenge unsafe ornon-compliant activity.
• High attention to detail and a disciplined approach toconfiguration control, evidence and handover documentation.
• Ability to work independently at project sites and collaborateeffectively across design, construction and operations teams.

You’ll be a successful Commissioning Engineer at Sinewaveif you have…

• Provenexperience commissioning HV electrical systems and protection schemes, ideallyacross distribution, ICP, Solar or BESS projects.
• Essentialexperience with protection systems including overcurrent, earth fault, linedifferential, sensitive earth fault, G99 and G100 requirements.
• Proficiencyin the safe use of commissioning and electrical test equipment.
• Knowledge of grid connection standards,network compliance and DNO or IDNO approval processes.
• ValidUK driving licence (max 3 points)
• Rightto work in the UK.
• EmergencyFirst Aid at Work certification.
• HV Authorisation as SAP or AP, ordemonstrable progress towards authorisation, is desirable.
• SMSTSor SSSTS is desirable.
• 18thEdition Wiring Regulations, City & Guilds 2382, would be an advantage.
• City& Guilds 2391-52 Inspection and Testing would be an advantage.
• Strong IT skills for technical reporting,document control and commissioning records.

• Comply withall company policies, procedures, and business ethics codes, including theanti-bribery policy, while adhering to the Environmental and QualityManagement System in alignment with ISO standards and the requirements ofthe 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 excitingplace to work with a welcoming and friendly workforce. We are afar-growing, dynamic business and even as our team grows in number,maintaining our company culture is important to us. We want to keep the feelingof 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 workingfrom home we have a lot to offer:

The usual stuff

Along with a competitive salary and life assurance, we provideenhanced pension contributions matching 5% as standard.

25days + Bank Holidays

You can even buy or sell holiday allowance, giving you the flexibilityto enjoy more time with family and friends.

Private Medical

We hope you’ll never need it, but just in case. We offer a fullycomprehensive medical scheme that can extend to your family as well.

Sinewave Academy

Our academy provides you with all the tools and training needed topower your career.

Sinewave Worx

Our bespoke perks platform getting you discounts and cashback at loadsof high-street retailers. Our perks list is as impressive as therange of our EV solutions! Want to know more? Charge ahead and check out here.

Any offer of employment will be subject to satisfactory pre-employmentchecks, including verification of your right to work in the UK. A basic DBScheck will also be required, with details confirmed during the recruitmentprocess.