senior manufacturing engineer cnc Work, Jobs in letchworth (with Salaries)

Senior Manufacturing Engineer - CNC
Lockheed Martin Corporation —Ampthill
- £55,000 - £70,000 a year
- Full-time
- ERP systems
- No degree
- Leadership
- Employee assistance programme
- Employee discount
Junior Product Designer (Industrial & Mechanical)
The Professional Monitor Company Limited —Biggleswade
- £28,000 - £34,000 a year
- Full-time
- CAD
- Assembly
- Project management
- Free parking
Quick apply
12d
Senior Mechanical Design Engineer
Filtronic —Cambridge
- Full-time
- Hybrid work
- CAD
- System design
- Bachelor's degree
Quick apply

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Senior Manufacturing Engineer - CNC

Lockheed Martin Corporation -
Ampthill

Apply Now

Job details

Permanent | Full-time
£55,000 - £70,000 a year

Benefits

Company pension
Employee assistance programme
Private medical insurance
Employee discount
Enhanced maternity leave

Qualifications

Six Sigma Black Belt
Mechanical engineering
Six Sigma Green Belt
ERP systems
GD&T
MRP
Machining
Root cause analysis
Leadership
Communication skills
CATIA

Full job description

Mechanical Engineering

Ampthill - Bedfordshire

About the Role

We are seeking an experienced Senior Manufacturing Engineer to lead CNC machining strategy and advanced tooling initiatives within the Complex Systems business area. This role will act as the technical focal point for machining operations, driving manufacturing excellence through optimized CNC programming, fixture design, tooling strategy, and process improvement.

The successful candidate will play a critical role in improving machining efficiency, reducing cycle times, increasing yield, and supporting the manufacture of high-precision complex components. You will collaborate closely with Design Engineering, Production, Quality, Supply Chain, and Operations teams to develop robust, scalable machining processes capable of supporting both prototype and production environments.

This is a hands-on technical leadership role requiring deep expertise in multi-axis machining, CAD/CAM programming, advanced workholding solutions, and manufacturing process optimization.
Key Responsibilities

Lead CNC machining strategy across complex component manufacturing operations.
Develop, optimize, and validate CNC programs for 3-axis, 4-axis, and 5-axis machining centres.
Design and implement advanced fixturing and workholding solutions to improve repeatability, precision, and throughput.
Select and optimize cutting tools, tooling strategies, and machining parameters for a wide range of materials and geometries.
Drive cycle time reduction, process capability improvement, and overall equipment efficiency (OEE) initiatives.
Establish best practices for machining operations, setup reduction, tooling management, and process standardisation.
Support new product introduction (NPI) activities through Design for Manufacture (DFM) and Design for Machining (DFMach) input.
Troubleshoot complex machining and tooling issues, implementing corrective and preventive actions.
Work closely with Quality teams to ensure compliance with engineering tolerances, inspection requirements, and customer standards.
Develop and maintain manufacturing documentation including setup sheets, tooling lists, process flows, and work instructions.
Lead continuous improvement initiatives using Lean Manufacturing and Six Sigma methodologies where appropriate.
Support capital equipment selection, commissioning, and capability validation for new CNC machinery and automation technologies.
Mentor junior manufacturing engineers, programmers, and machinists, providing technical leadership and knowledge sharing.
Collaborate with suppliers and tooling vendors to evaluate and implement emerging machining technologies and tooling solutions.
Ensure all machining activities comply with health, safety, and environmental standards.

Required skills, qualifications and experience

Minimum 5 years’ experience within a CNC manufacturing or precision machining environment.
Demonstrated mastery of 3-axis, 4-axis, and 5-axis CNC programming and machining processes.
Expert-level proficiency in CAD/CAM systems such as Siemens NX, Mastercam, CATIA, HyperMill, Fusion 360, or similar platforms.
Strong understanding of CNC machining strategies for complex geometries and tight-tolerance components.
Deep knowledge of metallurgy, material machinability, cutting tool technology, feeds and speeds optimisation, and chip control.
Extensive experience with advanced workholding, fixture design, and modular fixturing systems.
Strong understanding of GD&T (Geometric Dimensioning & Tolerancing) and engineering drawings.
Proven experience optimizing machining processes for cycle time, tool life, surface finish, and dimensional capability.
Experience supporting low-volume/high-complexity manufacturing and/or high-precision production environments.
Knowledge of Lean Manufacturing, root cause analysis, and continuous improvement methodologies.
Ability to troubleshoot complex manufacturing and machining issues in a fast-paced production environment.
Strong communication and cross-functional collaboration skills.
Experience working with ERP/MRP and manufacturing documentation systems.
Degree, HNC/HND, apprenticeship, or equivalent qualification in Manufacturing Engineering, Mechanical Engineering, Precision Engineering, or related discipline.

Desirable Experience

Experience within aerospace, defence, medical device, motorsport, semiconductor, energy, or other high-precision industries.
Knowledge of automation, robotic tending, palletisation, or lights-out machining strategies.
Familiarity with cutting tool management systems and digital manufacturing initiatives.
Exposure to additive manufacturing and hybrid manufacturing technologies.
Six Sigma Green Belt/Black Belt or Lean certification.
Experience with statistical process control (SPC) and process capability analysis.
Understanding of machining exotic alloys including titanium, Inconel, stainless steels, and hardened materials.

Job Reference Number

19223BR

Salary Range

£55,000- £70,000

Employee Type

Full Time

Hours Per Week

37.5

Working Schedule

4xFlex

Country

United Kingdom (UK)

Clearance Required for Role

Graduate, Intern or Apprentice Vacancy?

What we offer you

At Lockheed Martin our employees come first and therefore your physical, mental and financial wellbeing matters to us. On top of working in a highly supportive, friendly, respectful environment you can expect so much more.
We are an employer in support of and offering Flexible working with the option to also work a 4 day week depending on business requirements, where you have the option of Fridays off. We offer Competitive salaries alongside a flexible holiday entitlement.
We have a Wealth of benefits available to you that can be selected through our wellbeing tool upon commencement of employment. Just a few of our amazing benefits are shown below:

Private Medical Insurance
Competitive Pension
Dental
Critical Illness
Life Assurance
Travel Insurance
Employee discounts for top high street shops
Employee Assistance Program which includes free face to face counseling sessions, Legal advice, Financial advice, etc
Internal training and development alongside our Education assistance programmes
Reimbursement for a professional membership
Competitive policies that support flexibility and family leave inclusive of enhanced maternity leave

Business Environment

Lockheed Martin (UK) Ampthill is a rapidly changing, dynamic part of the Lockheed Martin Corporation with both domestic and international customers. It consists of business areas focusing on Platform Integration, Ground Based Air Defence, Special Projects and Weapons, which provide a variety of products and services to the Ministry of Defence and other customers. We are looking for talented individuals to join the company, in return we offer an exciting and challenging career path and excellent work/life balance with a 4 day week (Mon-Thurs) and flexible working arrangements.

Equal Opportunity Statement

Lockheed Martin is committed to upholding principles of equal opportunity, fostering a work environment that is aligned with our core values of integrity, respect, and exceptional performance. We recognize the importance of leveraging the unique talents and experiences of all our employees to drive innovation, deliver superior solutions, and maximize value for our customers. Our focus is on identifying the most qualified candidate for each role, regardless of their background. If you are interested in a position, we invite you to share how your skills and perspectives could bolster our team and encourage you to apply, even if you feel your qualifications do not fully meet all the job criteria outlined in our advertisement. Furthermore, Lockheed Martin is dedicated to ensuring our recruitment process is inclusive for all individuals. We are prepared to accommodate reasonable adjustments for applicants as needed. If you require assistance or adjustments to participate in the job application or interview process, please contact [email protected].

Job Expires

21/05/2027

Apply Now

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