Sr. HR Generalist
Confirmed on the employer's own hiring board on Nov 10, 2026. First seen by Alion on Nov 10, 2026.
About AdAction
Founded in 2013, AdAction is a leader in performance-based mobile app marketing, helping the world’s top brands acquire premium users at scale. We partner globally to deliver strategic, data-driven solutions that drive measurable growth.
Our team thrives in a fast-paced, collaborative environment built on autonomy, accountability, and innovation. We value people who take initiative, think strategically, and want to make a meaningful impact-not just within their role, but across the business.
As a remote-first company with talent hubs in Denver, Austin, and Chicago, we prioritize flexibility while creating intentional opportunities for connection through regular in-person events, team gatherings, and company retreats.
About The Role
AdAction is looking for an Sr. HR Generalist to run our People function across a growing, distributed team. You’ll partner with leadership on people initiatives while owning the day-to-day execution that keeps HR running smoothly, from onboarding and employee experience to performance reviews, compliance, and offboarding.
This role suits someone who is organized, people-first, and comfortable working independently in a fast-paced, remote-first environment.
Responsibilities
People Operations & Employee Experience
Own and manage the full employee lifecycle, including onboarding, compensation updates, promotions, and offboarding
Run onboarding and offboarding for all new hires and departures, and keep improving the process
Administer day-to-day HR operations across systems including ADP, GSuite, Slack, and related tools
Maintain employee records, HR systems, and organizational reporting with accuracy and confidentiality
Coordinate the annual performance review cycle and support managers through the process
Conduct exit interviews and share trends and opportunities for improvement with leadership
Leadership Partnership & Employee Relations
Partner with leadership on people initiatives, team needs, and employee engagement
Serve as a first point of contact for employee questions and concerns, and escalate sensitive issues to leadership
Support managers with performance conversations, documentation, and team development
Partner with Recruiting on hiring process and new-hire experience
Compliance & Benefits
Ensure the company follows compliance requirements, including required trainings, postings, policy acknowledgments, and documentation
Keep the employee handbook and HR policies up to date, working with leadership and outside advisors as needed
Coordinate with our EOR partner on onboarding and day-to-day needs for international employees
Support benefits administration and open enrollment, and answer employee benefits questions
Culture & Engagement
Lead employee engagement initiatives, surveys, and recognition programs
Plan and execute company events, retreats, and in-person gatherings across all locations
Help foster and strengthen AdAction’s culture across a remote-first environment
Experience & Qualifications
4-6 years of experience in HR or People Operations
Strong understanding of employee lifecycle management and HR best practices
Experience supporting a remote or distributed workforce
Working knowledge of US employment compliance requirements; experience with international employees or an EOR is a plus
Exceptional organization and project management skills with strong attention to detail
Excellent communication skills and strong emotional intelligence
High level of discretion and professionalism when handling confidential information
Experience with HRIS platforms such as ADP or similar systems
Experience with GSuite, Slack, and other admin and operational tools
PHR or SHRM-CP certification is a plus
Why AdAction?
Health, dental, and vision insurance
Up to 6% 401(k) match
Generous PTO + company holidays
Paid parental leave
Flexible remote-first work environment
Team outings, happy hours, and in-person events
Weekly UberEats credit
Home office stipend
Learning & development stipend
Wellness stipend