Experience: 2+ ​years ​of ​relevant experience Location: ​Remote (U.S.) About Sphere Sphere is ​a ​global aerospace ​and advanced materials ​company supplying ​high-performance ​metals and ​alloys ​to ​leading OEMs, Tier-1 ​suppliers, ​and strategic partners ​worldwide. ​Our ​platform spans the ​full value ​chain—from ​raw material ​sourcing and ​superalloy ​supply chains to ​manufacturing partnerships ​and global materials distribution—with operations across Korea, the United States, and key international markets. As our tubing business scales rapidly, we are strengthening our U.S. customer-facing team to support and grow this strategic account. Role Overview The Account Manager, Tubing will own customer-facing account management for Sphere’s tubing business and actively manage a $50M+ USD Order Book. Reporting to the General Manager, this is a commercial ownership role—not an order processing role. This position will work daily with leading aerospace and space OEMs in the United States, while collaborating closely with Korea-based teams and gaining hands-on exposure to tubing manufacturing operations in South Korea. You will be responsible for sustaining customer trust, managing the existing order book, securing new sales, and improving how quickly and effectively Sphere responds on quotes, schedules, and customer needs. Why This Role Matters Tubing is a high-value, strategically critical business area for Sphere. With an existing $50M+ USD Order Book, this role is essential to ensuring strong customer management, reliable execution, and continued sales growth. Success in this role requires more than managing orders. It requires building trusted customer relationships, staying highly organized across multiple priorities, developing new business, and coordinating closely with Sphere’s Korea-based teams to support customer expectations.

Key Responsibilities 1. Customer Relationship & Strategy • Serve as the primary customer-facing point of contact for Sphere’s tubing business • Work daily with leading aerospace and space OEMs in the United States • Own and strengthen the customer relationship for the tubing product line • Lead execution of customer strategy • Lead commercial corrective actions when needed • Serve as the communication bridge between the customer and Sphere’s Korea-based teams 2. Order Book Management & Sales Growth • Actively manage the existing $50M+ USD Order Book • Secure new sales orders and support continued growth of the tubing business • Track customer needs, order status, commercial issues, and follow-up items • Ensure customer commitments and internal execution are closely aligned 3. Sales & Commercial • Lead sales and commercial price negotiations • Conduct order commercial reviews • Track market conditions and translate them into sales strategy • Support commercial decision-making with clear, organized information 4. Demand Planning, RFQ & Quoting • Lead demand and forecast planning • Track RFQs, submit quotes, and maintain historical pricing • Coordinate internally to ensure timely and accurate quote responses 5. Schedule & Cross-Functional Coordination • Track and resolve customer schedule changes and issues • Coordinate with Korea-based teams on delivery, manufacturing updates, and execution • Help translate customer priorities into clear internal action items • Support communication between U.S. customers and Korea-based manufacturing/vendor teams What Success Looks Like • The key tubing customer relationship is stable, trusted, and actively managed • The $50M+ USD Order Book is clearly tracked, organized, and supported New sales opportunities are developed and converted into orders • Faster, more reliable responses are provided on RFQs, quotes, schedules, and customer issues • Customer needs are clearly communicated to Korea-based teams • Demand and forecast planning are accurate and useful for internal execution • Strong, smooth collaboration is maintained between U.S. customers and Sphere’s Korea-based teams

Required Qualifications • 2+ years of relevant experience in account management, sales, commercial operations, customer success, or a related customer-facing role • Proven ability to manage customer relationships and follow through on customer needs • Experience supporting commercial discussions, pricing, quoting, or order management • Experience with demand/forecast planning, RFQ tracking, or sales coordination • Bachelor’s degree or higher • Fluency in English required; Korean language capability is a plus • Flexibility for occasional international travel to Korea

Preferred Background • Experience in the aerospace, space, manufacturing, metals, tubing, steel, specialty-alloy, or advanced materials industry • Experience working with OEMs, Tier-1 suppliers, or technical manufacturing customers • Experience working across global teams, especially U.S.–Korea teams Exposure to manufacturing operations, supply chains, or technical product environments Key Skills & Attributes • Highly organized, with the ability to manage multiple orders, follow-ups, and customer priorities at the same time • Strong commercial judgment and negotiation capability • Ownership mindset with a high level of accountability • Strong follow-through and attention to detail • Responsive communication style, especially under tight timelines • Ability to manage a key customer relationship under pressure • Collaborative, cross-functional working style • Comfortable working across time zones and cultures Why Join Sphere • Work daily with leading aerospace and space OEMs in the United States • Manage a strategic $50M+ USD Order Book and help grow new sales • Gain hands-on exposure to tubing manufacturing operations in South Korea • Own a key customer account at a fast-growing global aerospace supplier • Operate at the center of U.S.–Korea commercial collaboration • Take on a high-visibility role working closely with leadership and global teams • Build long-term growth opportunities within a rapidly expanding global company

Hiring Process Application Review ＞ First Interview ＞ Second Interview ＞ Compensation Discussion ＞ Final Offer

Compensation • U.S. compensation range: $100,000–$140,000 • Actual level and compensation will be determined on a case-by-case basis, considering job-related knowledge and skills, education, and experience Work Environment • Fully remote, U.S.-based • Daily collaboration with U.S. customers and Korea-based internal teams • Flexibility for occasional international travel to Korea