Senior Process Engineer

Company: Mott MacDonald
Apply for the Senior Process Engineer
Location: Durham
Job Description:

Overview

As a Senior Process Engineer you lead process design for water and wastewater infrastructure across design, construction and handover, guiding teams and assuring technical quality. You’ll work in multi-disciplinary project teams to deliver practical, safe, and cost-aware solutions while proactively identifying process risks and opportunities. The role offers development, leadership, and the chance to advance toward chartership within a supportive, collaborative environment that values innovation and client outcomes. You’ll be helping to shape efficient, whole-life projects for Northumbrian Water and other clients.

Pay / Benefits

  • MMB pension contributions match 4.5%–7%
  • annual bonus schemes
  • subscription costs for professional institutions
  • life assurance / private medical / critical illness insurance
  • 33 days holiday with flexible benefits (buy/sell/carry)
  • flexible working options

Responsibilities

  • Lead development of process design deliverables (process models, mass balances, control philosophies)
  • Provide technical assurance on process designs and ensure compliance with standards
  • Identify innovation opportunities to meet whole-life cost and net-zero drivers
  • Collaborate with commercial, operational and construction teams for practical solutions
  • Engage with clients and support a one-team approach to client aims
  • Develop and mentor process engineers, guiding project staffing and development

Key requirements

  • Degree in Chemical or Process Engineering or related field
  • Chartered or incorporated member of a professional institution or equivalent experience
  • Effective communication with team members and stakeholders
  • Methodical problem-solving approach
  • Valid driving license and willingness to travel across operational region
  • communication
  • teamworking
  • mentoring
  • water and/or wastewater unit processes and treatment plant design
  • HAZOP experience (chair or team member)
  • process design for wastewater projects

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Posted: October 1st, 2026