Senior Process Engineer in Guildford

A leading developer of clean energy technologies is expanding its engineering team to accelerate the commercial delivery of innovative hydrogen-based systems. This is an opportunity to work at the heart of a fast-moving programme that is developing functional, scalable technology for real-world deployment.

To be considered for an interview, please make sure your application is full in line with the job specs as found below.

As Senior Process Engineer, you will be a key contributor to a multidisciplinary team responsible for the full lifecycle of process development — from early design concepts through to commissioning and scale-up. The role offers a diverse and technically engaging workload, with strong opportunities for personal and career growth.

Senior Process Engineer responsibilities

Develop and review process documentation including PFDs, P&IDs, heat and mass balances, and Basis of Design

Perform detailed calculations such as line and relief sizing, hydraulic analysis, and pressure drop estimations

Support the creation of control narratives, alarm lists, cause and effect matrices, and functional descriptions

Lead or participate in equipment selection and liaise with suppliers on specification and procurement

Conduct process simulations using Aspen Plus or HYSYS

Analyse experimental and test data to inform process improvements

Support scale-up activities from lab and pilot stages to full-scale systems

Collaborate in cross-functional design reviews with mechanical, automation, and development teams

Assist with costing, budgeting, and performance modelling including consumption and running costs
Senior Process Engineer requirements

Degree-qualified in Chemical or Process Engineering (or equivalent)

Minimum xiskglj 5 years’ relevant experience

Chartered or working towards chartership (IChemE or equivalent preferred)

Strong technical design skills and familiarity with the end-to-end process development cycle

Experienced in producing detailed process documentation and calculations

Proficient in the use of simulation tools such as Aspen Plus or HYSYS

Effective communicator, able to work closely with internal teams and external suppliers

Safety and compliance knowledge including HAZID, HAZOP, LOPA, DSEAR, ATEX and SIL assessments