Senior Process Engineer in London

This range is provided by Fyba Talent. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Locations: North-West, North Midlands, Bristol, Scotland

About Us

One of the UK’s leading construction businesses, known for delivering projects that create lasting, positive impact in the communities they serve. As a FTSE 250 company with a £1.9 billion turnover and a workforce of more than 3,500 across its Building, Infrastructure and Specialist Services divisions, it offers both stability and the chance to work on some of the country’s most exciting schemes. Joining the business means becoming part of diverse, highly professional teams who bring strong commitment and expertise, giving you the platform to grow, stretch your capabilities and achieve long‑term career ambitions.

Purpose of the Role

As a Senior Design Engineer, you’ll play a key role within the Engineering Design Team, working closely with Principal Engineers, Design Managers and Design Leads to deliver high‑quality technical design in line with processes, the BMS and all relevant H&S regulations. You’ll contribute directly to water and wastewater project delivery, bringing strong technical competence and, where required, providing line management to discipline and non‑discipline design engineers. Alongside driving innovation, you’ll support engineering governance, ensure integration across all design disciplines, assist with supply chain procurement activities and provide technical input to site teams. You’ll also work with the Discipline Manager and Principal Engineers to support knowledge sharing, mentor early‑career engineers and help develop capability across the discipline.

Key Accountabilities

• Ensure technical compliance and quality across all design outputs, acting as the default checker.
• Lead discipline‑specific design activities on assigned projects.
• Develop efficient, cost‑effective design solutions that support capital and operational goals.
• Design with buildability, safe construction, and safe operation in mind, working closely with delivery teams.
• Support procedural governance and adherence to client standards and specifications.
• Ensure full compliance with Health, Safety, and Environmental legislation.
• Drive innovation, value engineering, and digital design methods.
• Provide technical problem‑solving throughout the project lifecycle, identifying and managing risks and opportunities.
• Assist with pre‑contract design work.
• Capture and share lessons learned with the Design Team and Discipline Design Managers.
• Manage and support multi‑disciplinary Design Engineers.
• Mentor and develop the design team, fostering knowledge sharing and professional accreditation.

Person Specifics

• Strong in Process Calculations, Mass/Heat Balances and Hydraulics, plus skilled in preparing Process Block Diagrams, PFDs and P&IDs.
• Experienced in developing Control Philosophies and Commissioning Plans; HAZOP leadership and DSEAR exposure desirable.
• Degree‑qualified Engineer (or equivalent) with preference for Chartered status and solid consultancy/contracting experience.
• Competent in checking and approving design packages, with good commercial awareness and strong knowledge of H&S legislation and British Standards.
• Excellent communicator with strong stakeholder management, negotiation and influencing skills.
• Confident using Excel, Outlook, PowerPoint and cost/performance systems.
• Provides clear leadership and support to the design team, driving results while maintaining high attention to detail.
• Flexible, collaborative, and aligned with the values, bringing strong problem‑solving skills and an openness to innovation.
• Able to organise workload effectively, work independently or in a team, and build positive relationships by adapting communication style.
• Committed to personal development and supporting the growth of others, leading by example.

Benefits

• Generous holiday entitlement, increasing with years of service, plus the opportunity to purchase further holidays.
• Enrolled into our car benefit scheme – which depending on the role includes company car or car allowance.
• Annual pay review and discretionary bonus.
• A wide range of corporate discounts.
• Cycle to work schemes.
• Regular Save as You Earn share purchase scheme.
• Private medical scheme options are available for all salaried employees and our employee assistance programme also provides free 24/7 support to those who need it.
• Paid for yearly membership to one recognised professional association relevant to your role.

Seniority level: Mid‑Senior level

Employment type: Full‑time

Job function: Engineering and Design

Industries: Engineering Services and Design Services