Summary
Work History
Education
Skills
Equipment Operated and Maintained
Qualification Highlights
Languages
Timeline
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LEONEL MANSILLA-GUTIÉRREZ

Oakville

Summary

To leverage my extensive experience as a Heavy Equipment Mechanic, with over 15 years in large international mining operations, to contribute to a dynamic team. Proven expertise in diagnosing, maintaining, and repairing heavy machinery, combined with strong leadership in supervisory roles.

Work History

Heavy Equipment Mechanic

American Iron Metal
  • Diagnose and repair heavy machinery in the field, including Liebherr, CAT, and John Deere equipment
  • Support continuous improvement initiatives by contributing to failure analysis and component change planning

Workshop Supervisor

Minera Escondida BHP-Billiton
  • Company Overview: one of the largest open-pit copper mines in the world
  • Manage a team of mechanics, assigning maintenance tasks and overseeing parts and consumables planning
  • Coordinate preventive and corrective maintenance for large mining trucks, shovels, drills, and auxiliary equipment
  • One of the largest open-pit copper mines in the world

Mechanical Technician

Minera Escondida
  • Performed fault analysis and led a team in the maintenance of mobile Caterpillar and Komatsu equipment
  • Managed preventive, predictive, and corrective maintenance for heavy equipment, including CAT 797B, 797F, 793F, and Komatsu 930E

Mechanical Technician

AngloAmerican - Los Bronces Copper Mine
  • Conducted daily preventive and corrective maintenance on heavy mobile equipment such as Caterpillar and Komatsu machinery
  • Equipment serviced includes CAT 797B, 797F, 793F, 16H, 24M, D10R, D11R, D11T, 777F, and 854K, along with Bucyrus shovels and Atlas drills

Education

Heavy Machinery Mechanical Technician - Post-secondary studies

Mechanical Engineer - Post-secondary studies

HVAC Technician - for heavy machinery

CEIM Chile

Welding Certification - MIG/TIG & Brazing

Indura Chile

Caterpillar Training - 793F, 797B, 797F, D10, D11, 16H, 24H, 992F, 994F, 854G

Finning

Defensive Driving Certification - undefined

Work at Heights Certification - undefined

Canada

Forklift Operator Certification - undefined

Canada

3D Supervisor Training - undefined

Heavy Equipment Driving License - In progress

Skills

  • Proficient in Microsoft Office 2015-2020 (Word, Excel, PowerPoint, Project)
  • Advanced SAP (1SAP) skills
  • Solid understanding of predictive maintenance strategies and fault diagnosis

Equipment Operated and Maintained

CATERPILLAR:  797B, 797F, 793F, 16H, 24M, D10R, D11R, D11T, 777F, 777G, 854K


KOMATSU: 930E, 960E, 980E


LIEBHERR: LH22, LH60, LH80, 980, 938 


JOHN DEERE Various models, 


SHOVELS: Bucyrus, PH


DRILLS: Atlas, Bucyrus


OTHER: Front-end loaders, bulldozers, hydraulic shovels, auxiliary mining equipment

Qualification Highlights

  • Over 15 years of experience in the maintenance and repair of heavy-duty machinery, including both preventive and corrective maintenance in mining and industrial settings.
  • Proven supervisory experience in managing teams, scheduling and coordinating maintenance tasks, and implementing continuous improvement processes.
  • Skilled in fault diagnosis and repair of a wide range of mobile equipment, including Caterpillar, Komatsu, Liebherr, and John Deere machines.
  • Strong problem-solving and conflict-resolution skills; able to work effectively both independently and in team environments.
  • Spanish as a first language; intermediate proficiency in English, with advanced skills in Microsoft Office and SAP.

Languages

English
Full Professional
Spanish
Native or Bilingual

Timeline

Workshop Supervisor

Minera Escondida BHP-Billiton

Mechanical Technician

Minera Escondida

Mechanical Technician

AngloAmerican - Los Bronces Copper Mine

Mechanical Engineer - Post-secondary studies

HVAC Technician - for heavy machinery

CEIM Chile

Welding Certification - MIG/TIG & Brazing

Indura Chile

Caterpillar Training - 793F, 797B, 797F, D10, D11, 16H, 24H, 992F, 994F, 854G

Finning

Defensive Driving Certification - undefined

Work at Heights Certification - undefined

Canada

Forklift Operator Certification - undefined

Canada

3D Supervisor Training - undefined

Heavy Equipment Driving License - In progress

Heavy Equipment Mechanic

American Iron Metal

Heavy Machinery Mechanical Technician - Post-secondary studies

LEONEL MANSILLA-GUTIÉRREZ