Field Application Engineer/After-sales Engineer We are seeking an experienced
Senior Field Technician
specialized in
BESS (Battery Energy Storage Systems) , focusing on
PCS (Power Conversion Systems)
and
Lithium Battery Systems. This role includes overseeing the installation, commissioning, troubleshooting, and maintenance of energy storage systems in
C&I; (Commercial & Industrial)
and
Utility Scale
environments.
The Senior Field Technician will also support
technical training
activities. This includes delivering training sessions for customers and internal staff, as well as contributing to the development of
technical procedures
and
training documentation.
Key Responsibilities 1. Technical Operations
Lead installation, commissioning, and troubleshooting of
PCS ,
Lithium Battery Systems , and
BESS/RESS
solutions.
Conduct functional tests, performance monitoring, and system diagnostics.
Ensure project milestones are completed in line with company standards and customer expectations.
2. Call Center Technical Support
Participate in
call center support
for technical troubleshooting and remote diagnostics.
Collaborate with the
Help Desk
team to resolve advanced technical cases.
Act as the technical escalation point for complex issues.
3. Customer Support & Communication
Serve as the primary technical contact for customers during field operations.
Provide detailed explanations of system performance and troubleshooting steps.
Ensure a high level of customer satisfaction through professional service delivery.
4. Reporting & Documentation
Prepare technical reports, including diagnostics, repair logs, and commissioning records.
Ensure accurate completion of service records, inspection forms, and checklists.
5. Training & Technical Procedure Development
Conduct technical
training sessions
for customers, service partners,



and internal teams.
Actively contribute to the development of
training materials
and
technical procedures
for installation, maintenance, and troubleshooting.
Support the continuous improvement of training content by integrating field experiences and lessons learned.
6. Compliance & Safety
Ensure compliance with HSE (Health, Safety, Environment) standards and safety policies.
Conduct on-site safety inspections and maintain proper tool and equipment handling procedures.
Requirements Education & Certification
Diploma or degree in
Electrical Engineering ,
Energy Systems ,
Mechatronics , or related technical fields.
Professional skills in
BESS/PCS/RESS
installation, maintenance, and commissioning.
Experience
Minimum 1-2 years of experience in field service related to
BESS/PCS/RESS
systems.
Proven experience leading commissioning and maintenance projects on
C&I;
and
Utility Scale
systems.
Experience in training delivery and procedure development is highly desirable.
Technical Skills
Strong knowledge of
PCS ,
BESS , and
RESS
technologies, including grid compliance.
Ability to read and interpret
technical blueprints ,
wiring diagrams , and
control schematics.
Familiarity with
SCADA systems ,
EMS (Energy Management Systems) , and
monitoring platforms.
Soft Skills
Excellent
communication skills
for delivering training and technical explanations.
Problem-solving
and
critical thinking
skills to manage complex technical challenges.
Adaptability
to changing project environments and deadlines.
Frequent travel to various project sites.
Field-based environment with exposure to
industrial
and outdoor conditions.
On-call availability
during critical project phases and emergencies.
Seniority level Associate
Employment type Full-time
Job function Renewable Energy Semiconductor Manufacturing

📌 Field application engineer/after-sales engineer mexico (Ciudad de México)
🏢 Jinko Solar Co.
📍 Ciudad de México