The Role
Provides senior technical leadership and assurance for process engineering projects across the full lifecycle, from concept and FEED through detailed design, procurement, commissioning, and operations. Leads complex scopes, multidisciplinary technical direction, design reviews, process safety activities, technical governance, deliverable approval, risk resolution, and business-winning proposals. Supports engineering management, stakeholder engagement, quality systems, compliance, and specialist consultancy services across process industries.
Summary Generated by Built In
Our Business
Engineering services are delivered for the px group by the engineering consultancy division px Engineering Consultants Limited (“PXECL”). The team comprises of managers, senior engineers, engineers and designers that have direct experience of construction projects and operating facilities, as well as exceptional engineering expertise.
PXECL has established an excellent reputation with its clients and consequently much of the business is of a repeat nature. The team prides itself on the quality of its services and the strong relationships it builds with its clients and has a track record of delivering an integrated range of services. By combining technical and operational excellence, a sound understanding of regulatory environments and a robust and reliable project management system, px consistently delivers safe, efficient and compliant capital projects and services to a diverse client base supporting most industrial sectors.
The Opportunity
We are now recruiting for a Principal Process Engineer.
The Principal Process Engineer will provide senior technical leadership and process engineering assurance for minor modifications and projects, ensuring compliance with legal obligations, applicable standards and client requirements. In addition, the role will lead and deliver complex process engineering scopes, support the development of proposals for new business opportunities and provide specialist consultancy services.
You’ll be supported with personalised on the job training, coaching, mentoring and twice-yearly development and performance reviews to help maintain & develop your contributions and competence.
Engineering services are delivered for the px group by the engineering consultancy division px Engineering Consultants Limited (“PXECL”). The team comprises of managers, senior engineers, engineers and designers that have direct experience of construction projects and operating facilities, as well as exceptional engineering expertise.
PXECL has established an excellent reputation with its clients and consequently much of the business is of a repeat nature. The team prides itself on the quality of its services and the strong relationships it builds with its clients and has a track record of delivering an integrated range of services. By combining technical and operational excellence, a sound understanding of regulatory environments and a robust and reliable project management system, px consistently delivers safe, efficient and compliant capital projects and services to a diverse client base supporting most industrial sectors.
The Opportunity
We are now recruiting for a Principal Process Engineer.
The Principal Process Engineer will provide senior technical leadership and process engineering assurance for minor modifications and projects, ensuring compliance with legal obligations, applicable standards and client requirements. In addition, the role will lead and deliver complex process engineering scopes, support the development of proposals for new business opportunities and provide specialist consultancy services.
You’ll be supported with personalised on the job training, coaching, mentoring and twice-yearly development and performance reviews to help maintain & develop your contributions and competence.
Key Responsibilities
- Comply with UK legislation, Company Rules, procedures and instructions, and lead appropriate procedural and system improvements.
- Provide authoritative process engineering expertise across specification, design, procurement support, installation, commissioning and operational support.
- Lead discipline design assurance and technical governance, ensuring work is appropriately checked, reviewed and approved in accordance with delegated authority.
- Produce, review and approve, within delegated authority, process engineering deliverables and ensure technical consistency across discipline interfaces.
- Act as the senior technical focal point for complex process engineering issues, providing clear direction and resolving technical risk.
- Deputise for the Engineering Manager when required, supporting discipline priorities, resource decisions and the escalation of technical matters.
- Make sound, evidence-based decisions on technical issues, safety, cost and schedule with minimal supervision, escalating where authority limits are reached.
- Lead technical input to Business Winning, including capability presentations, execution strategies, scopes of work and cost estimates.
- More responsibilities can be found on the Role Profile.
Minimum Requirements
- Degree qualified in process or chemical engineering, or equivalent (Chartered Engineer status is preferred).
- Extensive process engineering design experience across the full project life cycle, including concept/Pre-FEED, FEED, detailed design/EPC, commissioning and operational support, within chemicals, petrochemicals, oil and gas, power or other process industries.
- Proven experience leading complex process engineering scopes and providing technical direction to multidisciplinary teams.
- Strong working knowledge of process design methods and deliverables, including process simulation, heat and material balances, PFDs, P&IDs, equipment and control philosophies, datasheets, hydraulics and relief-system design.
- Experience leading and contributing to process safety and design reviews, including HAZID, HAZOP, LOPA, SIL assessment and management of technical change.
- Experience across the procurement life cycle, including specifications, requisitions, bid evaluations, vendor review and post-order support.
- Demonstrable expertise in design assurance, checking and approval, competence management, quality systems, applicable legislation and relevant engineering standards.
- Strong report-writing, stakeholder-management, communication and presentation skills, with the ability to explain and defend complex technical decisions.
What you will receive from us
25 days holiday plus bank holidays
Contribution towards eye test and glasses
Online company discount benefits site including cinema tickets and gym membership discount
Long Service Awards
Employee recognition scheme – ELITE Awards
Employee Assistance Programme
Flexible Benefits Package
Onsite parking
We are committed to equality of opportunity for all staff and applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief and marriage and civil partnerships.
Please note this role may close early or be extended depending on the volume of applications.
Contribution towards eye test and glasses
Online company discount benefits site including cinema tickets and gym membership discount
Long Service Awards
Employee recognition scheme – ELITE Awards
Employee Assistance Programme
Flexible Benefits Package
Onsite parking
We are committed to equality of opportunity for all staff and applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief and marriage and civil partnerships.
Please note this role may close early or be extended depending on the volume of applications.
About
px Group is a fully integrated infrastructure solutions business which delivers net zero and stakeholder success through elite performance in the safety, availability, reliability and efficiency of energy infrastructure, industrial processes and related commercial activities - unlocking value for our customers as a trusted partner. Part of the Ara Partners portfolio of companies, Ara Partners is a private equity firm specialising in industrial decarbonisation investments.
Skills Required
- Degree in process or chemical engineering, or equivalent
- Chartered Engineer status
- Extensive process engineering design experience across the full project lifecycle, including concept or Pre-FEED, FEED, detailed design or EPC, commissioning, and operational support
- Experience in chemicals, petrochemicals, oil and gas, power, or other process industries
- Experience leading complex process engineering scopes and providing technical direction to multidisciplinary teams
- Strong knowledge of process design methods and deliverables, including process simulation, heat and material balances, PFDs, P&IDs, equipment and control philosophies, datasheets, hydraulics, and relief-system design
- Experience leading or contributing to HAZID, HAZOP, LOPA, SIL assessment, process safety, design reviews, and management of technical change
- Experience across the procurement lifecycle, including specifications, requisitions, bid evaluations, vendor review, and post-order support
- Expertise in design assurance, checking and approval, competence management, quality systems, applicable legislation, and engineering standards
- Strong report-writing, stakeholder-management, communication, and presentation skills
- Ability to explain and defend complex technical decisions
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The Company
What We Do
px Group is a fully integrated infrastructure solutions business that owns and manages energy, chemicals, and industrial assets, focusing on delivering net zero and stakeholder success through elite performance in energy infrastructure and industrial processes, driving decarbonisation and efficiencies.








