Senior/Principal Process Engineer

AECOM

. Lead the design and development of water and wastewater process solutions .

Posted 9/15/2026full-timeRemote • London • New Mexico • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and developing water and wastewater process solutions, with a strong focus on producing engineering deliverables such as PFDs, P&IDs, and technical specifications. Possesses the ability to lead technical projects, ensuring compliance with regulations and industry standards while collaborating effectively with multidisciplinary teams.

Highest-signal resume keywords

Water Industry ExperienceProcess Engineering DeliverablesTechnical LeadershipHAZOP and HAZID ParticipationHazardous Area Classification

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Process DesignPFDs ProductionP&IDs ProductionMass BalancesTechnical SpecificationsProcess Safety DocumentationLoPA AssessmentsRegulatory ComplianceEngineering Problem SolvingProject Delivery

Soft Skills

CollaborationClient EngagementTeamwork

Certifications & Qualifications

Chartered StatusDegree in Chemical EngineeringDegree in ChemistryDegree in Biological Science

Industry Keywords

Water and Wastewater SolutionsProcess Safety ReviewsIndustry Best PracticesHazardous Area ClassificationInvestment Programme

About the role

Key responsibilities & impact

Lead the design and development of water and wastewater process solutions
Produce and review process engineering deliverables, including PFDs, P&IDs, mass balances and technical specifications
Provide technical leadership, solve complex engineering challenges and support project delivery
Participate in and contribute to HAZOP, HAZID and other process safety reviews
Prepare process safety documentation, including Hazardous Area Classification and LoPA assessments
Ensure designs comply with relevant regulations, standards and industry best practice
Collaborate with clients, contractors and multidisciplinary teams
Support Southern Water’s £4.8bn investment programme across water and wastewater projects from concept through delivery

Requirements

What you’ll need

Degree in Chemical Engineering or Chemistry/Biological Science
Chartered status, or demonstrable learning and development on course to achieve chartered status
Water industry experience
Ability to design and develop water and wastewater process solutions
Experience producing and reviewing PFDs, P&IDs, mass balances and technical specifications
Ability to provide technical leadership and solve complex engineering challenges
Experience participating in HAZOP, HAZID and other process safety reviews
Experience preparing Hazardous Area Classification and LoPA assessments
Knowledge of relevant regulations, standards and industry best practice
Ability to work with clients, contractors and multidisciplinary teams

Benefits

Comp & perks

Hybrid work options and flexible working across Southern UK locations
Access to industry-leading technology and transformational work
Wide array of compensation, benefits and well-being programs for employees and their families
Equal Opportunity Employer and Disability Confident Employer support, including interview scheme for applicants meeting minimum criteria
In-person Day 1 onboarding at an AECOM office location