U103 General Machinist "A" - Large Turning

0090 CORP-Corporate Office; United States; On-site; USD 70,000 - 100,000; Full time

Job summary

Northrop Grumman is seeking a skilled machinist to analyze data and plan sequences for a range of manual and CNC milling, drilling, broaching, boring, and turning operations. You will set up and operate machines to exacting tolerances on various metal parts.

Responsibilities include reading blueprints, GD&T, calculating dimensions, and ensuring accurate first-piece and final inspections. This is a union-represented, on-site role with a focus on maintaining quality and process efficiency.

Qualifications

• High level of precision in machining to exact tolerances.
• Experience reading blueprints, GD&T, and manufacturing instructions.
• Ability to set up and program CNC/DNC machines and verify part dimensions.

Responsibilities

• Read and follow safety regulations and job sheets.
• Plan sequence of operations and select speeds/feeds.
• Set up, align, and clamp workpieces with fixtures to tolerances.
• Operate manual and CNC mills/turns and perform required machining steps.
• Disassemble and return fixtures after setup.
• Ensure first piece and final inspections are signed off.
• Maintain tools and workspace in good condition.
• Train others as needed.

Skills

CNC Milling

CNC Lathes

GD&T

Blueprint Reading

MDI Programming

Inspection Tools

US Citizenship

Tools

Siemens CNC

Fanuc CNC

Job description

Relocation Assistance

No relocation assistance available.

Clearance Requisites

Clearance required for start: None. Clearance type: None.

Travel

No travel required.

Primary Function

Analyze data and plan sequence of operations. Set up and perform a variety of machining operations on a limited number of large manual and CNC/DNC vertical and horizontal milling, drilling, broaching, boring, and turning machines. Machine parts with numerous steps, diameters, and fits to exacting tolerances of finish, perpendicularity, concentricity, and parallelism. Meet requirements of lower level job code with emphasis on learning how to operate more machines.

Tools and Equipment

• Manual and CNC/DNC horizontal/vertical milling, boring, drilling, broaching, and turning machines
• Layout machine and table, tracer attachments, indexing tables, shims, nuts, bolts, clamps, chuck jaws, fixtures, jigs, vises, tool holders, end mills, face mills, drills, taps, reamers, boring bars, carbide tools, high‑speed tools, broaches
• Templates: scribes, hammers, wrenches, height gauges, gauge blocks, tape punches, micro‑cassette recorders
• Cranes, rigging, and other material handling equipment
• Electronic/manual measuring equipment: scopes, levels, indicators, verniers, squares, micrometers, gages, chart recorders

Materials

Carbon and stainless steel, alloy steel, aluminum, brass, bronze; rough and semi‑finished stock, castings, forgings, fabrications; cutting oil, coolant, hydraulic fluid.

Direction of Others

Direct Crane Operator/Slinger personnel in positioning workpiece and removal from machine.

Working Procedure

The following are the usual major job duties. This description does not preclude the performance of other duties by the incumbent.

1. Receive work assignments from lead or supervisor.
2. Read and follow safety regulations, MI package, drawings, change notices, operation sheets, specifications, work authorizations, tape readout sheets, and set‑up sheets.
3. Align, shim, and position tools in holders to exacting tolerances. Select and set optimum speeds and feeds. Set readout and positioning indicators for reference.
4. Analyze manufacturing information, production drawings, instructions, and parts. Plan sequence of operations, method of holding and aligning workpiece, and machining cuts required to obtain specified finishes and tolerances.
5. Lays out and scribes or marks on parts reference lines and center points for precise machining dimensions. Use trigonometry and geometry tables or charts to determine dimensions for bolt circles, angles, chords, etc.
6. Position, align, level and clamp workpieces and/or fixtures to exacting tolerances in all axes. Improvise as necessary to prevent distortion in positioning and holding part.
7. Set up, operate, perform and adjust any of the following types of machines/machining operations:
   • Manual: Boring Mill‑Horiz, Boring Mill‑Vert, Lathe‑Horiz, Planer Mill, Line Boring, Drilling, Superfinishing, Layout, Grinding.
   • CNC/DNC: Boring Mill‑Horiz, Boring Mill‑Vert, Lathe‑Horiz, Drilling, Mill/Turn Machines.
8. Develop and/or follow the sequencing of CNC/DNC machines. Prepare, proof or make changes to programs as necessary to produce part to specifications. Correct program errors and supplement movement in manual mode and perform operations.
9. Disassemble setups of jobs and clean and return fixtures, gauges, tools, etc. to their assigned locations.
10. Check work for conformance to specifications and chart dimensions. Sign off operations completed and obtain first piece and final inspection sign‑offs on operation sheets.
11. Obtain and maintain certified operator measurement certification through periodic testing.
12. Maintain tools, equipment and work area in a clean and orderly condition.
13. Maintain a working knowledge of various machining principles and practices, processes, capabilities, tooling, and technologies. Recommend and/or initiate changes in machining procedures and methods to improve operating efficiency.
14. Relay pertinent job information to employees assigned to the same machines on follow‑up shifts.
15. Train others as necessary (TRA provided).
16. Perform work of equal or lower classification as required.
17. This is a union‑represented position.

Basic Qualifications

• High School Diploma or equivalent GED.
• Minimum of 10 years experience on Manual and CNC Vertical and Horizontal mills and lathes.
• Experience with interpreting blueprints, sketches, manufacturing instructions and GD&T.
• Experience in setup of vertical and horizontal mil and lathe, offsets, fixtures, planer jacks, ground blocks, etc. independently.
• Experience interpreting machine code and using MDI (Manual Data Input).
• Proficiency with measuring instruments such as indicators, calipers, micrometers, bore micrometers, height gauges, thread gauges and other hand tools.
• U.S. citizenship required.

Preferred Qualifications

• Minimum of 10 years experience with large machining: horizontal mill and vertical lathe.
• Experience working with multi‑axis/multi‑process machines.
• Experience machining castings and forgings.
• Previous experience with verbal and written feedback on set‑up and program process improvements.
• Experience with Siemens and Fanuc CNC Controls.

Equal Opportunity Employer Statement

Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Additional Information

Schedule: 20 days estimated application period, subject to change based on business needs.