Sr. Process Engineer

Mott MacDonald is a global engineering, management, and development consultancy committed to delivering impactful work that shapes the future.We are a team of over 20,000 experts working across the world in more than 50 countries.

We are proud to be part of an ever-changing global industry, delivering transformative work that’s defining our future. It’s our people who power that performance. As an employee-owned business, we invest in creating a space for everyone to feel safe and valued and empowered with the right tools and support. 

Technical Skills

• Lead process design activities across Concept, FEED, Basic and Detailed Engineering stages.
• Provide technical direction for process simulations, equipment sizing, hydraulic calculations, heat‑material balance development, and mass‑energy integration.
• Own preparation and review of key documents:
  • PFDs, P&IDs, Process Datasheets
  • Heat & Material Balances (HMB)
  • Control philosophies & operating manuals
  • Cause & Effect diagrams
  • Design Basis and Process Specifications

• Perform sizing and rating for distillation columns, heat exchangers, reactors, pumps, compressors, vapor–liquid separators, vessels, tanks, safety calculations and utility systems.
• Develop relief load calculations and overpressure protection per API/ASME/OISD guidelines.
• Conduct hydraulic studies, line sizing, pump NPSH checks, etc.
• Review vendor documents and ensure compliance with project specifications.
• Evaluate process safety aspects (HAZID, HAZOP participation).

• Conduct plant debottlenecking assessments, troubleshooting studies, energy optimization, and reliability improvement assignments.
• Provide technology selection support, feasibility studies, and due‑diligence reviews.
• Guide clients on best practices for operability, maintainability, and process safety.

• Work with multidisciplinary project teams and coordinate with mechanical, piping, instrumentation, electrical teams

• Develop and maintain internal standards, templates, engineering tools, and training materials.

• Proficiency in process simulators: Aspen HYSYS, Aspen Plus, Aspen EDR.
• In‑depth understanding of heat exchangers, reactors, columns, pumps, compressors, mixers, and utility systems.
• Knowledge of international standards: API, ASME, NFPA, OISD, IEC, ISO,BIS etc.
• Strong troubleshooting background with hands‑on site exposure is an added advantage.

Soft Skills

• Excellent communication (written and verbal).
• Ability to lead discussions with clients and senior stakeholders.
• Strong decision‑making, logical and analytical skills.
• Team leadership and mentoring capability.
• High sense of ownership and accountability.

Whether you want to pursue excellence in your specialism or broaden your experience with flexible roles across our business, you’ll be connected to a community of global experts championing you to be your best. Join us and shape your story with Mott MacDonald, where everyone has the opportunity to be brilliant.

Flexible working
At Mott MacDonald, we support our staff to create work-life balance which works for them and welcome candidates looking for career flexibility. We are open to discussing flexible working at interview stage.

Our benefits package is designed to enhance your experience:

• Agile working
• Critical illness and compassionate leave
• Paternity Leave
• Group term life insurance, and Group medical insurance coverage
• Career mobility options
• Short and Long-term global employment opportunities
• Global collaboration and knowledge sharing