HBM Operator ( Machinist - Oil and Gas Industry)

Sigma Engineering Works,

Mazrui Energy Services

HBM Operator

Sigma Engineering Works

Key Responsibilities and Duties

• Set up, program at operator level, and operate CNC Horizontal Boring Machines for large, heavy-duty oil & gas components
• Machine critical parts such as valve bodies, wellhead components, flanges, manifolds, spools, and pressure-containing equipment
• Read and interpret engineering drawings, GD&T, API specifications, and customer requirements
• Align, level, and secure large workpieces using precision fixtures, clamps, and alignment tools
• Select, install, and set cutting tools, boring bars, and tool offsets suitable for alloy steels, stainless steels, Inconel, and other oil & gas materials
• Edit CNC programs at the machine (tool offsets, wear offsets, minor code changes)
• Perform boring, drilling, facing, milling, tapping, and contouring operations with tight tolerances
• Establish and verify work coordinates, datums, and reference points
• Monitor machining processes to ensure dimensional accuracy, surface finish, and repeatability
• Inspect parts using precision measuring instruments (micrometers, bore gauges, dial indicators, CMM where required)
• Maintain compliance with API, ASME, and customer quality standards
• Identify and troubleshoot machining, tooling, or program-related issues affecting part quality
• Perform routine machine maintenance, calibration checks, and housekeeping
• Complete required production and quality documentation, including inspection reports and job travelers
• Follow strict safety procedures for handling large components and heavy lifting equipment
• Work closely with programmers, engineers, quality, and inspection teams to meet delivery schedules
• Minimum Required skills, knowledge and experience for the role:
• Recognized Diploma from a Higher Technical College
• Minimum of five years practical experience of workshop practices
• Experience of Oil & Gas Industry
• Ability to operate HBM Machines.
• Ability to read Engineering drawings
• Ability to select right cutting tools, cutting parameter.
• ***If this sounds like you, please apply to this job with your updated CV.***