Process Design Lead

Process Design Lead - Water & Wastewater

Location: Dublin (regional role across Ireland) - relocation will be required
Salary: Competitive + package (DOE)
Employment type: Permanent, full-time

Are you a process / hydraulic engineer who wants more ownership, more variety, and a real say in how projects are delivered?

This is a fantastic opportunity to step into a Design Lead role in Ireland, taking the technical lead on water and wastewater infrastructure projects from concept through to construction, commissioning and operation.

You'll join a collaborative multi‑disciplinary team and play a key role in shaping sustainable, efficient treatment solutions that genuinely impact communities across Ireland.

The opportunity

As Process Design Lead, you'll be the go‑to person for Process & Hydraulic Engineering within a regional portfolio of projects. You will:

• Own the process, hydraulic and mechanical design across multiple water and wastewater schemes
• Lead the development of robust engineering solutions from feasibility and optioneering through detailed design and into commissioning
• Work closely with MEICA, civil and structural teams in a genuine "one-team" environment
• Develop and review process documents including PFDs, intelligent P&IDs, control philosophies and constructability assessments
• Lead or significantly contribute to:
  • Process & mechanical design reports
  • Hydraulic & process calculations, energy balances
  • Equipment selection, specifications and motor/instrument lists
  • Whole‑life cost and lifecycle performance assessments
  • Site layouts focused on operability, maintainability and safe construction
• Support design assurance: HAZOPs, ALMs, design reviews, constructability and CDM compliance
• Provide hands‑on technical support to site and commissioning teams, ensuring design intent is delivered on the ground
• Act as a key technical contact for clients and stakeholders, helping to resolve queries and keep projects on track

This role offers a broad mix of office, digital collaboration and site interface, giving you visibility across the full project lifecycle - not just the design phase.

What you'll bring

We're looking for someone who combines strong technical capability with practical, delivery‑focused thinking:

Essential

• Level 8 Honours Degree (or equivalent) in Chemical, Water/Wastewater, Environmental, Process Engineering or closely related discipline
• 5+ years' relevant experience in process/design engineering, ideally in water, wastewater or process industry projects
• Strong knowledge of process and hydraulic design for treatment systems - including calculations, equipment selection and process modelling
• Confidence in preparing and reviewing:
  • PFDs and P&IDs
  • Control philosophies / automation inputs
  • Constructability and operability assessments
• Experience coordinating designs across MEICA and civil/structural disciplines
• Familiarity with digital engineering tools / CDEs such as BIM 360, ACC, ProjectWise or similar
• Proven ability to engage with clients and third‑party stakeholders, leading technical discussions and resolving queries

Desirable

• Chartered Engineer status (or working towards it)
• Experience mentoring junior engineers and designers
• Background in design & build or contractor‑side delivery, with a focus on buildable, cost‑effective solutions
• Experience on major Irish or UK water frameworks is a distinct advantage

Why this role?

This is a great fit if you're ready to move beyond being "just another designer" and want a role where your input truly shapes outcomes:

• Impactful work - help deliver water and wastewater infrastructure that underpins communities and environmental protection across Ireland
• True design leadership - own the process & hydraulic discipline across multiple projects, not just a small work package
• Variety & challenge - from early‑stage concept and optioneering to commissioning and handover
• Career progression - strong platform to progress into Principal Engineer, Discipline Lead or Design Manager roles
• Collaborative culture - work with planners, digital teams, project managers and site teams in a joined‑up, "one‑team" environment
• Professional growth - support for chartership, CPD and exposure to multi‑disciplinary engineering challenges

How to apply
Interested in finding out more? Apply now with your up to date CV in confidence

Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.