Associate Director, Field Sales Trainer, West Zone

MISSION Mirum Pharmaceuticals is a biopharmaceutical company dedicated to transforming the treatment of rare diseases. We are passionate about advancing scientific discoveries to become important medicines for rare disease patients. We are collaborative, creative, and experienced professionals and we’re looking to augment our team with other individuals who embody our values: care, be real, get it done, and have fun, seriously. POSITION SUMMARY The Field Sales Trainer is responsible for driving field force capability development through field coaching, training reinforcement, and Zone-level pull-through of commercial initiatives. This role partners closely with the Zone Director , Regional Business Managers , Marketing , and Commercial Training to identify performance opportunities, reinforce effective selling behaviors, and support consistent execution of brand strategy across the field sales organization. The Field Sales Trainer serves as a critical link between field execution and cross-functional commercial strategy by providing insights and feedback on marketing messaging, field strategy, selling skills, field team development opportunities, and training effectiveness. Assigned Area: West Zone: TN, LA, TX, MO, CA, CO, UT, OR, WA, AZ, IN, MO, IL, WI, NM, NE JOB FUNCTIONS/RESPONSIBILITIES Field Coaching and Sales Capability Development The Field Sales Trainer will provide in-field coaching and development support to enhance field team effectiveness, execution quality, and customer engagement. Responsibilities include: Conduct field rides and coaching sessions with sales representatives to reinforce approved selling skills, messaging, and execution standards. Observe customer interactions and provide timely, actionable coaching focused on improving performance and business impact. Identify individual and team development opportunities related to selling skills, clinical acumen, account planning, business ownership, and customer engagement. Support a culture of continuous learning, accountability, and performance excellence across the Zone. Reinforce best practices and desired behaviors aligned to company expectations and commercial objectives. Zone-Level Strategy Pull-Through The Field Sales Trainer will support execution of commercial, marketing, and training initiatives at the Zone level. Responsibilities include: Partner with the Zone Director to support pull-through of brand strategy, field strategy, and national commercial initiatives. Help ensure consistency of approved messaging and selling approaches across regions within the Zone. Support implementation of marketing campaigns, training programs, launch initiatives, and key business priorities. Translate national training and marketing direction into practical field applications. Identify barriers to execution and recommend solutions to improve field adoption and effectiveness. Insights, Feedback, and Gap Identification The Field Sales Trainer will provide meaningful insights to leadership and cross-functional partners regarding field execution and market dynamics. Responsibilities include: Provide regular insights and feedback to the Zone Director, Regional Business Managers, Marketing, and Commercial Training. Identify gaps in marketing messaging, sales resources, field strategy, training content, and field team readiness. Share observations on customer engagement, competitive dynamics, market access considerations, and field execution challenges. Recommend enhancements to training, tools, messaging reinforcement, and coaching approaches. Act as a feedback conduit between field teams and internal commercial stakeholders. Cross-Functional Collaboration The Field Sales Trainer will work closely with commercial leadership and internal partners to support aligned execution. Responsibilities include: Collaborate with Regional Business Managers to identify regional performance opportunities and development needs. Partner with Commercial Training to reinforce training pr…