Senior Technician - Machining 4

RTX; Leighton Buzzard; On-site; GBP 40,000 - 52,000; Full time

Benefits offered by this job

25 days annual leave

Pension scheme

Private medical insurance

Employee assistance programme

Cycle to Work

Job summary

Collins Aerospace in Leighton Buzzard is seeking a Senior Technician - Machining 4 for on-site, 39 hours per week. The role covers CNC set-up, programming (G&M/Fanuc), and process improvement across 3- and 5-axis equipment to produce precision aerospace components.

Expect TPM-driven machine readiness, adherence to quality standards, and active involvement in continuous improvement and mentoring within the S&SP business unit.

Qualifications

• Recognised CNC/NC qualification or strong CNC machining experience.
• Experience with 3- and 5-axis CNC milling/turning.
• Advanced knowledge of Fanuc control systems and G&M code programming.
• Ability to interpret complex engineering drawings and use inspection tools.

Responsibilities

• Perform TPM to ensure machine readiness and reliability.
• Prioritise work orders per production plan and verify drawings and specs.
• Conduct detailed machine set-ups and operate 3- and 5-axis CNC machines.
• Monitor production runs for quality and process compliance.
• Diagnose and resolve tooling, programming, or process issues in real time.
• Maintain EH&S, 5S standards and contribute to continuous improvement.

Skills

CNC milling

Drawing interpretation

Inspection skills

Problem solving

Tools

Fanuc controls

G&M code programming

3/5 axis CNC

Job description

Date Posted: 2026-10-22 Country: United Kingdom Location: Leighton Buzzard, Bedfordshire Position Role Type: Onsite Job Opportunity: Senior Technician - Machining 4 Location: Leighton Buzzard – on site Company: Collins Aerospace Hours: 39 hours per week (fixed hours) 0700-1600 Mon -Thurs & 0700-1200 Fri

Are You Ready to Shape the Future of Aircraft Interior Components? At Collins Aerospace, our Interiors team is focused on innovation, safety and cost efficiency. But we don’t just get people from point A to point B. We’re committed to making air travel more comfortable, connected and secure. As a leader in aviation interior products and services, we’re helping airlines and original equipment manufacturers create a positive experience for their customers. With offices and manufacturing facilities in more than 12 states across the U.S. and more than 10 countries around the globe, we’re changing the game of aircraft interiors. Are you ready to join our team?

The Senior Technician - Machining 4 role is a skilled specialist responsible for advanced CNC machining operations, including machine set-up, programming (G&M code/Fanuc), and process optimisation across 3- and 5-axis equipment. Operating under moderate supervision, the role requires a high level of autonomy to plan and execute daily activities, troubleshoot machining issues in real time, and ensure the production of high-quality aerospace components. The role contributes directly to aftermarket production within the Service & Specialty Products (S&SP) business, supporting on‑time delivery and customer satisfaction. The position also plays a key role in continuous improvement, knowledge sharing, and mentoring, supporting team capability and operational performance.

Key Responsibilities:

• Perform Total Productive Maintenance (TPM) to ensure machine readiness, reliability and longevity.
• Review and prioritise work orders in line with the production plan, validate technical documentation, drawings, and specifications to assist.
• Conduct detailed machine set-ups and operate CNC Machinery (3 and 5 axis) in accordance with standard procedures to produce precision aerospace components.
• Monitor production runs, ensuring adherence to quality and process standards.
• Diagnose and resolve machining issues in real time (tooling, programming, or process-related).
• Maintain compliance with EH&S, FOD, and 5S standards.
• Actively contribute to continuous improvement initiatives and process optimisation.

Required Skills & Experience:

• Recognised CNC/NC qualification or good experience in CNC machining within a precision engineering environment.
• Strong experience with 3- and 5-axis CNC milling and/or turning
• Advanced understanding of Fanuc control systems and G&M code programming
• Ability to interpret complex engineering drawings and specifications
• Proficient in the use of inspection and measurement equipment

Preferred Skills & Experience:

• Aerospace industry experience is desirable
• Focus on H&S.
• Process Improvement: Experience supporting process improvement projects.
• Strong communication skills

Why Join Us?

At Collins Aerospace, we believe in empowering our people to make a real difference. You’ll be part of a supportive, innovative team where your contributions are valued, and your career growth is encouraged. With excellent benefits, a flexible working environment, and the opportunity to work on cutting‑edge aircraft interior components, this is the perfect chance to take your machining career to the next level.

What We Offer:

• 25 days Annual Leave + Bank Holidays
• Fantastic Pension Scheme
• Private Medical Insurance
• Employee Assistance Programme for personal support
• Cycle to Work Scheme and other employee discounts

RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry‑leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.