MANAGER SALES DEVELOPMENT

Marvin Group marvingroup.com Open · verified Sep 25, 2026

Inglewood Manager Sales Development

At a glance

Mid-level Sales Development role at Marvin Group. Inglewood.

Pay not stated

RoleSales Development

SeniorityManager

LocationInglewood

Role brief

Growth Roles summary, based on the employer's posting.

What you'll do

Find and pursue new revenue while retaining and expanding current customer business
Track opportunities through external databases and evaluate customer RFIs, solicitations, and RFPs
Guide capture teams as they prepare customer proposals and review contracts
Research markets, present product capabilities, and deepen customer relationships through engagement
Support the VP of Sales Development and supervise Customer Support Specialists

What you bring

A bachelor's degree in business administration, sales, or a related field
Demonstrated sales leadership experience, a record of sales results, and knowledge of the market
Working knowledge of manufacturing processes plus FARs and DFARs
Comfort with MS Office, Microsoft 365 Teams, CRM systems, and SAP
U.S. person status under ITAR rules, along with English proficiency and strong negotiation skills

Who this fits

You’ll suit a customer-facing sales leader who can manage support staff, develop proposals, review contracts, and build durable customer relationships. The role is fully onsite in Inglewood and typically involves travel at forty percent. ITAR eligibility requires you to be a U.S. citizen, lawful permanent resident, political asylee, or refugee.

From the employer

Salary is based on experience, skills, and education

This position is 100% onsite

The Marvin Group is a Strategic Partner for Global Alternate Mission Equipment and Sustainment
The Marvin Group, a leading defense contractor, plays a crucial role in the development and manufacturing of various systems for military aerospace and vehicles. Based in Southern California near the Los Angeles International Airport, The Marvin Group consists of Marvin Engineering (MEC), Marvin Test Solutions (MTS) and Marvin Land Systems (MLS). Marvin Engineering designs and produces military Alternate Mission Equipment. Marvin Test Solutions designs and manufactures armament Test Equipment. Marvin Land Systems specializes in the design and build of power and thermal management systems. For over 60 years we have maintained “A Tradition of Excellence”, serving as a trusted source for our unwavering commitment to supporting all branches of the Department of Defense and our global allies. Our collaboration extends across a diverse array of programs and platforms, including major military prime contractors such as Lockheed Martin, Northrop Grumman, and Raytheon.

Purpose

This position reports to the VP of Sales Development. The Sales Development Manager manages customer sales/support organization, including pricing evaluation, proposal development, market trend analysis, contract review, and conflict resolution. Conduct sales and business development functions through customer engagement activities.

Responsibilities

• Capture current and future revenue by developing new business opportunities while growing/maintaining existing business
• Identify and track business opportunities using various external databases.
• Review and analyze customer request for information, solicitations and request for proposal
• Lead the Capture team in the development of customer proposals
• Conduct research to identify new markets and customer needs
• Promote capabilities and product portfolio during customer engagements
• Perform contract review and initiate post award requests to the customer
• Build and promote strong, long-lasting customer relationships by partnering with them and understanding their needs
• Provides Tactical support to VP of Sales Development
• Manage the Customer Support Specialists

Requirements

• Bachelor's Degree in Business Administration, Sales or relevant field
• Basic technical knowledge of the manufacturing process
• Excellent ability to work within a team while fostering relationships with both internal and external customers.
• Proven working experience as a Sales development manager, sales executive or a relevant role
• Proven sales track record
• Experience in customer support is a plus
• Proficiency in MS Office, 365 Teams, CRM and SAP
• Proficiency in English
• Market knowledge
• Excellent communication and negotiation skills
• Ability to build rapport
• Time management and planning skills
• Experience with FARs and DFARs

Travel Requirements

There are typically travel requirements for this position (40%)

NOTES: This job description in no way states or implies that these are the only duties to be performed by this position's employee(s). Employees will be required to follow any other job-related instructions and perform any other job-related duties requested by anyone authorized to give instructions or assignments. All duties and responsibilities are essential functions and requirements and are subject to possible modification to accommodate individuals with disabilities reasonably. To perform this job successfully, the employee(s) will possess the skills, aptitudes, and abilities to perform each duty proficiently. Some requirements may exclude individuals who pose a direct threat or significant risk to the health or safety of themselves or others. The requirements listed in this document are the minimum levels of knowledge, skills, or abilities. This document does not create an employment contract, implied or otherwise, other than an at-will relationship.

This position must meet export control compliance requirements. All applicants must be “U.S. persons” within the meaning of ITAR, as defined: a U.S. Citizen, a lawful permanent resident, political asylee, or refugee.

Interested parties please apply online and submit resume to https://jobs.marvingroup.com/
Visit us at https://http://marvingroup.com/

The Marvin Group is an EEO/Disability/Vets Employer.

Our company uses E-Verify to confirm the employment eligibility of all newly hired employees. To learn more about E-Verify, including your rights and responsibilities, please visit www.dhs.gov/E-Verify.

If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact People & Culture at 310.674.5030.