JOB DESCRIPTION
Instrument Maintenance Engineer / Calibration Engineer
Specialization: Component-Level PCB Repair, Troubleshooting.
Role Title: Instrument Maintenance Engineer / Calibration Engineer
Department: Technical Service & Calibration
Experience: 5 Years+
Education: B.E. / B.Tech in E&C; / Diploma

POSITION OVERVIEW
We are seeking a skilled and detail-oriented Instrument Maintenance Engineer / Calibration Engineer to join our technical service team. This role moves beyond standard modular replacement (swapping out entire assemblies) to precise, component-level micro-repair, circuit troubleshooting, and high-precision instrument calibration. The ideal candidate brings robust hands-on expertise in signal tracing, fine-pitch SMD/BGA soldering, and post-repair system alignment to ensure test and measurement instruments operate strictly within original manufacturer specifications and NIST-traceable standards.
KEY RESPONSIBILITIES

1. Diagnostic & Component Isolation
· Circuit Analysis: Interpret schematic diagrams, PCB layout traces,



and theory-of-operation manuals to systematically trace signal paths.
· Signal Tracing & Injection: Utilize oscilloscopes, logic analyzers, and function generators to trace and inject high-frequency or analog signals across amplifiers, filters, ADCs, and precision voltage references.
· Parametric Testing: Perform in-circuit parametric testing of passive components (resistors, capacitors, inductors) and active devices (ICs, op-amps, transistors, diodes) using LCR meters and curve tracers.
· Thermal Inspection: Employ thermal imaging cameras to identify shorted components, overheating power regulators, and abnormal current draws.

2. Component-Level Soldering & Rework
· SMD & Through-Hole Rework: Safely remove and replace fine-pitch Surface Mount Devices (SMDs), Ball Grid Arrays (BGAs), Quad Flat Packages (QFPs), and discrete components without thermal or structural damage to surrounding traces.
· PCB Trace & Pad Repair: Rebuild lifted

📌 Calibration Engineer (India)
🏢 ALLIED OIL AND GAS SERVICES
📍 India