Senior Instrumentation Design Engineer

Larsen & Toubro Ltd; Chennai; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Larsen & Toubro Ltd in Chennai, India, seeks a Sr. Design Engineer to handle instrumentation and control system delivery. You will prepare datasheets, control philosophies, DBRs, and P&IDs, and coordinate with civil, electrical, and mechanical teams for clash-free detailing.

The role requires strong communication skills, readiness for site visits, and familiarity with Smart Infrastructure projects. Travel to client sites may be necessary.

Qualifications

• Basic Instrumentation & Electrical knowledge required.
• Strong communication and presentation skills expected.
• Preference for candidates with exposure to Smart Infrastructure projects.

Responsibilities

• Prepare Instrument Datasheets, control philosophy and DBR.
• Prepare cable schedules, wiring diagrams, I/O lists, P&ID review.
• Layout and location planning for cables, junction boxes, and panels.
• Develop and review SPI deliverables, BOQ, and technical bid analyses.
• Coordinate with vendors and clients for design discussions and timely approvals.

Skills

Basic Instrumentation & Electrical

Communication & Presentation

Smart Infrastructure exposure

Site travel readiness

Smart Plant Instrumentation

Job description

Sr. Design Engineer

• Preparation of Instrument Datasheets
• Preparation of control philosophy and DBR
• Preparation of cable schedule and wiring diagram
• Preparation of Instrument index and I/O List
• Preparation and Review of P&ID
• Preparation of Cable Tray Layout and Support Layout.
• Preparation of Instrument and Junction Box Location Layout
• Preparation & review of Logic notes and Logic diagram for control system
• Preparation of RFQ documents for PLC based control system with scope demarcation.
• Preparation of cable block Diagram for DCS, SIS, FGS.
• Modelling of Junction Boxes, Cable Trays, Cabling Systems, Cables and Tubing, Cabinets.
• Preparation of JB/panel Grouping and JB Scheduling.
• Preparation of Cable Tray Fill Report and Node Report.
• Preparation of Technical Bid Analysis and vendor selection
• Experienced in preparing SPI Deliverables.
• Responsible for preparation of BOQ
• Review of relevant Civil, Mechanical & Electrical documents and drawings for Instrument detailing & clash analysis
• Detailed Knowledge on data communication concepts and protocols of SCADA, DCS, PLC, RTU, FRTU, C&I cables, power supply source.
• Knowledge on Instrumentation design codes and standards for selection of field instruments
• Knowledge on complete control system architecture components, UPS system.
• Close interaction with other business units for timely submission of technical documents.
• Coordination & support project team for timely approval of design documents.
• Meeting with Vendors & Clients for technical discussions

Skills & Other requirements:

• Basic Instrumentation & Electrical knowledge
• Good Communication & Presentation skills
• Preference to candidates with exposure to Smart Infrastructure projects
• Candidate should be ready to make travels for site visits and client discussions
• Smart Plant Instrumentation knowledge