Director/Senior Director, People & Culture

Flagship Pioneering, Inc.•Cambridge, MA

1d•$128,000 - $176,000

About The Position

A Flagship Pioneering Lab Company is looking for a passionate, self-motivated, and dynamic Director/Senior Director, People & Culture to join one of its rapidly growing biotech companies. As a key leader in the People function, you will play a pivotal role in shaping the future of our organization and cultivating a thriving, mission-driven culture. Our leadership team believes that people are the cornerstone of our success, and this role will be instrumental in driving that vision forward. You will lead the development of the People organization, fostering a workplace that empowers employees to grow, innovate, and contribute to the company’s next phase of growth.

Requirements

Bachelor’s degree required; additional HR certifications (SHRM-SCP, SPHR) are a plus.
Extensive experience in start-up environments and scaling HR operations, ideally within the biotech or technology sectors.
Proven expertise across the full range of HR functions, including talent acquisition, talent management, compliance, HR systems, compensation/benefits, employee relations, and leadership coaching.
Ability to manage and execute HR responsibilities in a hands-on manner during the early growth phase.
Strong operator with the ability to move seamlessly between hands-on execution and prioritization across competing demands.
Demonstrated ability to build HR systems, processes, and teams from the ground up in fast-moving, resource-constrained environments.
Decisive, action-oriented leader with a bias toward speed, clarity, and practical solutions over perfection.
Comfortable operating in ambiguity, setting structure where none exists, and adjusting quickly as business needs evolve.
Clear, direct communicator who builds trust through transparency, follow-through, and consistency.
High emotional intelligence with a low-ego, collaborative approach to problem-solving and leadership.
Pragmatic innovator who tests new HR practices and technologies (including AI-enabled tools) with a focus on real operational impact rather than experimentation for its own sake.

Responsibilities

Design, implement, and maintain core HR infrastructure, including policies, systems, workflows, and governance required to operate as a standalone organization.
Translate high-level people objectives into concrete operating plans, timelines, and deliverables; ensure consistent execution across all HR functions.
Establish operational metrics, dashboards, and routines to monitor effectiveness, identify gaps, and drive continuous improvement across HR services.
Serve as the primary operator responsible for day-to-day HR functionality, escalation management, and issue resolution.
Design, launch, and manage practical, role-relevant training programs that directly support business priorities, near-term performance, and leadership effectiveness.
Implement learning platforms, tools, and vendors (including AI-enabled solutions) to efficiently deliver training at scale and measure impact.
Build and operationalize a structured employee development framework, including onboarding, core skill development, and leadership/manager enablement.
Own the redesign and rollout of performance management processes, including goal setting, feedback cadences, reviews, and manager accountability mechanisms.
Ensure performance processes are simple, consistently applied, and embedded into daily operating rhythms rather than treated as annual exercises.
Take direct ownership of recruiting operations, partnering with Flagship Talent Acquisition to manage requisitions, pipelines, interview processes, and close timelines.
Act as the internal point person for hiring managers, ensuring role clarity, interview discipline, and timely decision-making.
Build and manage recruiting capacity as needed, including hiring and overseeing a junior recruiter or contract support.
Establish standardized hiring processes, tools, and documentation to ensure consistency, compliance, and positive candidate experience.
Track and report on recruiting metrics (time to fill, quality of hire, pipeline health) and adjust processes accordingly.
Operationalize company values by embedding them into onboarding, performance management, recognition, and day-to-day people processes.
Own employee engagement programs, including surveys, feedback mechanisms, action planning, and follow-through.
Partner closely with leaders to reinforce expectations for behavior, accountability, and people management standards.
Proactively manage employee relations issues, ensuring timely, fair, and consistent resolution aligned with company values and legal requirements.
Design and administer reward and recognition programs that reinforce desired behaviors and performance, integrating them into total rewards execution.