Senior Process Engineer

Company: Sigmar Recruitment
Apply for the Senior Process Engineer
Location: Pomeroy
Job Description:

Senior Process Engineer

Remote & Hybrid options available

Sigmar is delighted to be partnering with a leading engineering contractor in the water and wastewater sector to recruit a Process Engineer for their growing team. This is an excellent opportunity to join a well-established organisation delivering critical water infrastructure projects across Ireland and the UK. The successful candidate will support projects from concept and design through to commissioning and operational optimisation.

Key Responsibilities

  • Develop process designs for water and wastewater treatment projects.
  • Prepare process calculations, mass balances, hydraulic calculations, PFDs and P&IDs.
  • Specify and optimise treatment technologies, including biological, filtration, sludge treatment and chemical dosing systems.
  • Support multidisciplinary engineering teams throughout project delivery.
  • Participate in design reviews, HAZOPs and commissioning activities.
  • Analyse plant performance and identify process improvements.
  • Prepare technical reports, documentation and tender submissions.
  • Liaise with clients, contractors and key project stakeholders.

Essential Requirements

  • Degree in Chemical, Process, Environmental Engineering or a related discipline.
  • 5+ years’ experience within water and/or wastewater treatment.
  • Experience delivering municipal or industrial treatment projects.
  • Strong knowledge of biological treatment processes, hydraulic design principles and sludge treatment systems.
  • Experience producing process calculations and technical reports.
  • Knowledge of UK and Irish water industry standards.
  • Strong communication and stakeholder management skills.
  • Full UK driving licence.

Desirable

  • Chartered Engineer (CEng) status or working towards chartership.
  • Experience working with UK or Irish water utility frameworks.
  • Knowledge of BIM or digital engineering environments.
  • Experience supporting commissioning, plant optimisation and automation/control systems.

What’s on Offer

A competitive salary and benefits package, ongoing professional development, career progression opportunities, and the chance to work on major water and wastewater infrastructure projects across Ireland and the UK.

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Posted: October 2nd, 2026