Senior Process Engineer

-; Exton; On-site; GBP 100,000 - 125,000; Part time

Job summary

A global engineering services organization is seeking a Senior Process Engineer based in Exton, UK, to lead process design and engineering for industrial projects. You will manage project delivery, mentor junior engineers, and ensure compliance with engineering standards. Candidates should possess a BS in Chemical or Mechanical Engineering and a PE license, with a minimum of 15 years of experience. The role offers a casual employment type with comprehensive benefits.

Benefits

Medical benefits

401(k) with employer match

Paid Time Off

Qualifications

• Minimum 15 years in process engineering.
• Experience in design-build delivery methodology.
• Familiarity with clean utility systems, CIP design, and validation protocols.

Responsibilities

• Lead process design efforts from conceptual design through commissioning.
• Develop engineering documentation including PFDs and P&IDs.
• Support construction, startup, and troubleshooting process issues.

Skills

Leadership

Interpersonal skills

Proficiency in MS Office

Ability to manage multiple projects

Education

BS or higher in Chemical or Mechanical Engineering

Professional Engineer (PE) license

Tools

AutoCAD

Revit

Plant3D

HYSIS

AFT

Job description

Overview

We are seeking an experienced Senior Process Engineer to lead process design and engineering efforts for industrial projects. This role is ideal for a seasoned professional with a strong background in chemical or mechanical engineering, particularly within biotech, pharmaceutical, specialty chemical, and renewable energy sectors. You will act as a technical specialist and team leader, managing project delivery, mentoring junior engineers, and collaborating across disciplines to ensure technical excellence.

Your role

Technical Capabilities:

• Lead process design efforts from conceptual design through commissioning.
• Develop engineering documentation (PFDs, P&IDs, process flow diagrams, heat and material balances, equipment specifications, tender documents).
• Perform calculations for equipment sizing and utility requirements.
• Support construction, startup, and commissioning.
• Troubleshoot process and equipment issues.
• Ensure compliance with company standards, regulatory requirements, and cGMPs.
• Participate in design reviews (3D models, piping layouts, building plans).

Business Development:

• Consult with clients and identify and resolve process-related issues.
• Participate in business development activities, including networking and preparing technical papers.
• Maintain strong client relationships and support proposal development.

About you

• Education: BS or higher in Chemical or Mechanical Engineering.
• Licensure: Professional Engineer (PE) license required.
• Minimum 15 years in process engineering.
• Experience in design-build delivery methodology.
• Proficiency in MS Office.
• Familiarity with clean utility systems, CIP design, and validation protocols.
• Ability to manage multiple complex projects simultaneously.
• AutoCAD, Revit, Plant3D, HYSIS, AFT a plus.
• Strong leadership and interpersonal skills.

Rewards & benefits

At AtkinsRéalis, our values – Safety, Integrity, Collaboration, Innovation, and Excellence – are more than just words. They are the foundation of who we are and how we work. These principles shape our culture, guide our decisions, and inspire us to create an environment where every team member feels empowered to grow, succeed, and make a meaningful impact.

Depending on your employment status, AtkinsRéalis benefits may include medical, dental, vision, company‑paid life and short‑ and long‑term disability benefits, employer‑matched 401(k) with 100% vesting, employee stock purchase plan, Paid Time Off, leaves of absences options, flexible work options, recognition and employee satisfaction programs, employee assistance program, and voluntary benefits. You can review our comprehensive benefits page here.

About AtkinsRéalis

We’re AtkinsRéalis, a world‑class engineering services and nuclear organization. We connect people, data and technology to transform the world’s infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We’re committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Additional information

Are you ready to expand your career with us? Apply today and help us shape something extraordinary.

AtkinsRéalis is an equal opportunity, Drug‑Free employer EOE/Veteran/Disability.

Please review AtkinsRéalis' Equal Opportunity Statement here.

AtkinsRéalis cares about your privacy and is committed to protecting your privacy. Please consult our Privacy Notice on our Careers site to know more about how we collect, use and transfer your Personal Data. By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice.

Note to staffing and direct hire agencies: In the event a recruiter or agency who is not on our preferred supplier list submits a resume/candidate to anyone in the company, AtkinsRéalis family of companies, we explicitly reserve the right to recruit and hire the candidate(s) at our discretion and without any financial obligation to the recruiter or agency. https://careers.atkinsrealis.com/recruitment-agencies

Worker Type

Employee

Job Type

Casual

At AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world‑class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.