About Underline

Underline starts with our people.

At Underline, we've rapidly built a culture around ownership, trust, community, and innovation. Underline is dedicated to cultivating a growth environment where people feel valued, work with a purpose of mission, and are professionally challenged.

Underline was founded in 2019 with a singular mission: to deliver modern connectivity infrastructure as the foundation for flourishing communities. With an ethic of partnership, Underline deploys multi-purpose fiber networks and technology to power community goals. These networks deliver ulta-fast internet access to every part of a community, and also form the foundation for other critical upgrades: distributed healthcare services, new wireless solutions, and resilient infrastructure including modernized water systems and responsible energy creation. Our first two projects are in Colorado Springs and Fountain, Colorado.

Underline is backed by investors including FinTech Collective, Revolution’s Rise of the Rest Seed Fund, Ares Management, Fantail Ventures, Quanta Capital, and several other institutional investors and private family offices.

About this Position

The Senior HR Manager is a strategic and hands-on leader who will develop and execute HR strategies that support our business objectives and growth. This role will oversee the full spectrum of HR functions including talent acquisition, employee relations, performance management, compensation and benefits, regulatory compliance, learning and development, and organizational culture.

What You'll Do

• Strategic Leadership
• Partner with executive leadership to align HR strategies with business goals.
• Lead workforce planning, organizational design, and succession planning.
• Build a culture of accountability, innovation, and flourishing across teams.
• Keep a finger on the pulse of company culture and employee sentiment to minimize business impacts from any emerging issues
• Culture & Engagement
• Foster an inclusive workplace where employees feel valued and heard.
• Design and manage engagement surveys and action plans.
• Learning & Development
• Identify training needs and implement learning programs across functions.
• Support leadership development and team-building initiatives.
• Talent Management
• Manage full-cycle recruitment, onboarding, and offboarding processes.
• Implement performance management systems and career development frameworks.
• Develop programs to retain top talent and improve employee engagement.
• Employee Relations and Compliance
• Serve as a trusted advisor on complex employee relations issues.
• Manage risk through effective employee communications and legal compliance.
• Ensure HR policies comply with federal, state, and local employment laws.
• Compensation & Benefits
• Lead compensation planning, benchmarking, and benefits administration.
• Evaluate and improve reward and recognition programs.
• HR Operations
• Oversee HR systems (TriNet) and leverage data for decision-making.
• Establish and maintain HR metrics and dashboards to inform strategic planning.

Does this sound like you?

• You have endless positivity and energy to uplift those around you.
• You have a passion for people and a naturally high EQ.
• You enjoy working as part of a collaborative team.
• You are detail-oriented and able to juggle and execute on multiple tasks and projects in sometimes a nebulous and fluid work environment .
• You have an entrepreneurial spirit—you have no problem getting your hands dirty and have an intense ability to learn quickly and from others.

Experience we’re looking for

• Bachelor's degree in Human Resources, Business Administration, Organizational Development, or a related field (Master’s degree preferred - MBA, MS in HR, or similar).Strategic thinking with a hands-on approach.
• SHRM-SCP or SPHR certification required.
• Strong knowledge of U.S. labor laws, HR best practices, and compliance standards.
• 8–10 years of progressive HR experience, with at least 3–5 years in a management or senior HR role.
• Proficiency with HRIS systems (e.g., TriNet, BambooHR, Gusto, etc) and data analytics.
• Familiarity with PEOs, such as TriNet, for benefits, payroll, and HR management.
• Excellent interpersonal, communication, and leadership skills.
• Demonstrated commitment to inclusivity and employee flourishing.
• Proven ability to both execute individually and operate at an elevated strategic level on a daily basis.
• Experience working in a fast-paced high-growth environment while executing at an exceptional level across varied areas of responsibility.
• Demonstrated ability to influence at the executive level and drive organizational change (well-versed in change management).

Bonus points

• Experience in technology or telecommunications sectors