Job
Description: Principal Engineer – Mechanical Design Engineering

Reporting To
Head – Engineering

Job Grade:
Principal Engineer / Senior Technical Specialist / Subject Matter Expert

Position Summary

The Principal Engineer - Mechanical Design Engineering is responsible
for leading the mechanical design, development, analysis, and optimization of
Tubular Reactors (Plug Flow Reactors - PFR) used in chemical, petrochemical,
fertilizer, refining, and specialty process industries. The role provides
technical leadership across the complete equipment lifecycle, including concept
design, detailed engineering, manufacturing support, installation,
commissioning, troubleshooting, and continuous improvement.

Key Roles
& Responsibilities

Mechanical
Design & Engineering
- Lead the mechanical design and development of
Tubular Reactors and Plug Flow Reactor (PFR) systems.
- Prepare and review equipment specifications,
datasheets, engineering calculations, and fabrication drawings.
- Design high-pressures and high-temperature reactor




components in compliance with applicable design codes and standards.
- Perform mechanical calculations related to:
- Internal and external pressure
- Thermal expansion
- Stress analysis
- Fatigue analysis
- Creep assessment
- Structural integrity
- Optimize designs for safety, reliability,
manufacturability, and cost-effectiveness.
- Evaluate reactor performance under severe operating
conditions involving high pressures and temperatures.
- Analyze flow distribution, pressure drop, thermal
gradients, and heat transfer characteristics.
- Ensure reactor designs meet process requirements
and performance guarantees.

Mechanical
Integrity & Stress Analysis
- Conduct detailed stress analysis of reactor
components.
- Perform Finite Element Analysis (FEA) for critical
equipment.
- Evaluate thermal stresses caused by process and
startup/shutdown conditions.
- Assess fatigue life, creep behavior, and equipment
durability.
- Support Fitness-for-Service (FFS)

📌 Principal Engineer – Mechanical Design Engineering (Bengaluru)
🏢 NoPo Nanotechnologies India
📍 Bengaluru