Sr. Mould Maintenance Engineer

Job Description

Just imagine turning complex mould challenges into reliable technical solutions that improve production performance. Then make it real.

• As our Sr Mould Maintenance Engineer, you’ll provide the technical knowledge and analytical thinking needed to protect mould integrity and improve maintenance processes at our Monterrey factory. You’ll make informed decisions on repairs, troubleshoot complex malfunctions, and turn technical data into practical improvements. Working locally and with global mould maintenance teams, you’ll help strengthen equipment reliability, production efficiency, and knowledge sharing across the LEGO Group.

Core Responsibilities

• Lead Guarantee Acceptance Testing and support mould technicians in identifying defects and coordinating claims with the responsible teams.
• Lead root-cause problem solving for mould malfunctions and determine when advanced continuous improvement methods are needed.
• Collaborate with global maintenance teams on mould design improvements, spare parts, supplier topics, claims, and low-efficiency moulds.
• Coach mould repair and cleaning colleagues on troubleshooting, corrective maintenance, and process improvements.
• Challenge existing processes to protect mould integrity and improve operational efficiency.
• Lead technical projects and implementations aligned with local initiatives and business priorities.

Do you have what it takes?

• Experience in injection mould maintenance.
• Proven continuous improvement and analytical problem-solving experience.
• Practical ability to assess and perform major repairs on injection moulds.
• Strong communication skills and experience guiding technical colleagues.
• Advanced English.

Preferred qualifications

• Advanced experience with measurement instruments and toolroom equipment.
• Ability to interpret metric technical drawings and work with CNC machinery, milling, laser welding, manual machinery, and precision polishing.
• Advanced Microsoft Excel skills.
• Strong Lean Manufacturing knowledge or certification in continuous improvement tools.

What success looks like

• You’ll become a trusted technical partner who can assess mould damage, approve appropriate repair approaches, support production-release decisions, and lead improvements based on reliable data. Your work will help teams solve recurring problems at their root, improve mould efficiency, and share effective maintenance practices locally and globally.

What’s in it for you?

Here are some of what to expect:

Family Care Leave – We offer enhanced paid leave options for those important times.

Insurances – All colleagues are covered by our life and disability insurance which provides protection and peace of mind.

Wellbeing – We want you to be your best self, so you’ll have access to the Headspace App and lots of wellbeing initiatives and programs run by local teams where you are based

Colleague Discount – We know you'll love to build so from day 1 you will qualify for our generous colleague discount.

Bonus – We do our best work to succeed together. When goals are reached and if eligible, you'll be rewarded through our bonus scheme

Your workplace: Your workplace will be the office, store or factory specified in this advert.

Hybrid Working: Our hybrid work model, Best of Both offers you the option of flexibility to work from home up to two days per week. Your People Leader will discuss the principles of the model, including how this option applies to your role and team.

Learn more about our benefits, culture and workplace experience here

We strive to create a diverse, dynamic and inclusive culture of play at the LEGO Group, where everyone feels safe, valued and they belong.
The LEGO Group is highly committed to equal employment opportunity and equal pay and seeks to encourage applicants from all backgrounds (eg. sex, gender identity or expression, race/ethnicity, national origin, sexual orientation, disability, age, religion and Veteran status) to apply for roles in our team.

We support our employees in being there for the moments that matter in life and celebrate families of all kinds, the loved ones that make us who we are. Being part of the LEGO Group also means taking part in our annual Play Day, playing a part in building a sustainable future and continuing our mission to “inspire and develop the builders of tomorrow.”
The LEGO Group is fully committed to Children’s Rights and Child Wellbeing across the globe. Candidates offered positions with high engagement with children are required to take part in Child Safeguarding Background Screening, as a condition of the offer.

Thank you for sharing our global commitment to Children’s Rights.

We conduct drug screening as a part of our drug free workplace policy and in support of our commitment to the health and safety of our employees.

Just imagine building your dream career.

Then make it real.