Customer Service Manager

Aptiv; San Marcos (CA); On-site; USD 104,000 - 128,000; Full time

Job summary

Winchester Interconnect, located in San Marcos, CA, seeks a Customer Service Manager to lead the inside sales and customer service team, coordinating with sales, engineering, and operations to support quotations, orders, and lead times. The role emphasizes proactive relationship building and revenue growth in a fast-paced manufacturing setting.

The ideal candidate has a Bachelor’s in Business Administration with a focus on Sales & Marketing and at least five years in sales/customer service, with

Qualifications

• Bachelor’s in Business Administration with an emphasis in Sales and Marketing or related fields highly preferred.
• Minimum of 5 years of sales and customer service experience, preferably in the wire and cable industry.
• Must have excellent communication, both oral and written, as well as supervisory, interpersonal and team-building skills.
• Able to learn on the fly and deal with ambiguity.
• Organize and/or lead conflict resolution in spirit of servicing customers.
• Knowledge of sales principles and negotiation is also required.
• Must show initiative and exercise discretion and independent judgment.
• Computer competency in MS Word, Excel, Google and MRP systems is also necessary.

Responsibilities

• Lead the daily operations of the inside sales and customer service team, coordinating with multiple departments to manage quotations, lead times and customer communications.
• Develop customer relationships for growth opportunities and participate in forecasting.
• Use Salesforce and other tools to recognize employee contributions and share important updates with the wider company.
• Initiate meetings with new potential customers and manage relevant projects, including selecting team members and training staff.

Skills

Sales & marketing knowledge

Communication skills

Team leadership

Conflict resolution

Ambiguity tolerance

Initiative

Education

Bachelor’s in Business Administration (Sales & Marketing)

Tools

MS Word

Excel

Google Suite

MRP systems

CRM tools (Salesforce)

Job description

At Winchester Interconnect, we always do the right thing, the right way.

Winchester Interconnect is committed to inspiring the most innovative teams. We foster a dynamic, inclusive environment that thrives on collaboration and continuous growth. We hire exceptional people, celebrate wins, empower employee growth, and provide opportunities to thrive. Winchester is where potential transforms into purpose, and every team member plays a vital role in shaping our shared success.

Position Summary

As our Customer Service Manager you will serve as the key liaison between our customers and internal departments, including sales, business development, engineering, and operations for our San Marcos, CA manufacturing facility within the Wire & Cable and Assemblies Division. Your hands‑on leadership will ensure exceptional support for all stakeholders, ultimately contributing to increased revenue. A willingness to be actively involved is essential.

Qualifications & Requirements

• Bachelor’s in Business Administration with an emphasis in Sales and Marketing or related fields highly preferred.
• Minimum of 5 years of sales and customer service experience, preferably in the wire and cable industry.
• Must have excellent communication, both oral and written, as well as supervisory, interpersonal and team‑building skills.
• Able to learn on the fly and deal with ambiguity
• Organize and/or lead conflict resolution in spirit of servicing customers
• Knowledge of sales principles and negotiation is also required.
• Must show initiative and exercise discretion and independent judgment.
• Computer competency in MS Word, Excel, Google and MRP systems is also necessary.

Our core values - Accountability, Collaboration, and Empowerment (ACE) - are the foundation of how we operate and drive success. You will take ownership of your contributions, collaborate with a team that gets stuff done, and be empowered to innovate and pursue bold initiatives that drive our business forward.

Are You Our Next ACE?

• Accountable for leading the daily operations of the inside sales and customer service team, ensuring timely handling of inquiries, quotes, orders, and system updates (CRM/ERP). You will collaborate across departments (Business Development, Engineering, Operations, Factory) to manage quotations, coordinate customer communications, and ensure accurate lead times. Furthermore, you are responsible for developing customer relationships for growth opportunities, participating in forecasting, and driving the development of departmental goals and process improvements.
• Collaborate directly with customers and colleagues at all organizational levels as needed to meet the company's business objectives. Salesforce will be utilized to manage sales opportunities effectively. Additionally, you will use tools to recognize employee contributions and share important updates about opportunities, customers, and departmental activities with the wider company.
• Empowered to actively seek out and engage with new potential customers. You have the authority to initiate meetings, share information across the company as needed to satisfy customer requirements, and manage relevant projects, including selecting team members. You are empowered to train and develop employees.

Systems You’ll Use

• Google Enterprise
• ADP
• ERP Systems: Epicor 10 / Infor Visual ERP
• QT9 Quality Management
• Regulatory Agencies Systems (e.g. UL, CSA, etc)

Pay Transparency

Winchester Interconnect Corporation is committed to pay transparency. The pay range for this position is up to $116,000 (DOE) plus incentive compensation. Exact salary will be contingent upon your experience, education, skills, and any other factors Winchester Interconnect Corporation considers relevant to the hiring decision.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities. In addition to federal law requirements, Winchester Interconnect complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities.

Winchester Interconnect expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

• Candidate Inquiries Only-No Third-Parties***