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HR Specialist

Colossal Biosciences

Colossal Biosciences

People & HR
Dallas, TX, USA
USD 65k-85k / year
Posted on Jul 3, 2025

The HR Specialist will provide comprehensive support to the HR team and employees across the organization by coordinating onboarding processes, maintaining HR systems and records, supporting payroll and benefits administration, and compliance reporting. This role is essential to ensuring a seamless employee experience and maintaining the integrity of HR operations.

This position is based on-site 5 days a week in our Dallas, TX headquarters. Up to 20% travel may be needed. Relocation assistance is not available.

Duties and Responsibilities:

  • Facilitate all aspects of new hire onboarding, including scheduling orientation sessions, preparing materials, collecting necessary documentation, and ensuring timely system and payroll setup.
  • Regularly update employee data in HRIS and payroll systems to reflect changes in employment status, compensation, personal information, and organizational structure.
  • Create and maintain accurate, up-to-date organizational charts reflecting current reporting structures and positions.
  • Monitor and ensure compliance with state and local tax regulations for all employee locations, including registering for new state tax accounts when needed.
  • Maintain secure and organized personnel files in compliance with company policies and legal requirements.
  • Serve as a point of contact for workers’ compensation claims, coordinate with insurance carriers, complete required documentation, and track claim status.
  • Support the Payroll Administer and payroll process by auditing time records, verifying deductions, processing updates, and assisting employees with payroll-related inquiries.
  • Prepare and submit required federal, state, and local compliance reports accurately and on time.
  • Assist with benefits administration, including enrollments, changes, terminations, and responding to employee benefits questions in a timely and professional manner.
  • Maintain knowledge of laws, regulations, and best practices.
  • Provide additional support as needed for the HR Team and Payroll Administrator

Required Skills and Abilities:

  • Knowledge of HR practices, employment laws, and compliance requirements.
  • Experience with HRIS, ATS, and payroll systems.
  • Proficiency in Google Suite and Microsoft Office Suite.
  • Strong attention to detail, organizational skills, and ability to handle sensitive and confidential information.
  • Excellent communication and interpersonal skills.
  • Excellent verbal and written communication skills, interpersonal, and critical thinking skills.
  • Ability to function well in a high-paced environment.

Education and Experience:

  • Associate or Bachelor's degree in Human Resources, Business Administration, or related field preferred
  • 3+ years of experience in an HR Support Role
  • Biotech or tech industry experience is preferred
Pay Range
$65,000$85,000 USD

What Colossal Offers You:

  • Medical, dental, and vision coverage
  • Unlimited PTO and company holidays so you can rest and recharge
  • Flexible spending accounts (FSA)
  • Company matched 401k retirement plan
  • Paid parental leave up to 12 weeks
  • Education reimbursement
  • An opportunity to help us return the Earth to a healthier state

The team at Colossal is committed, colorful, passionate, intelligent, collaborative, creative, experienced, scientific and world-class. That sounds like a lot to fit into one building. That’s why we are spread out in several locations that include laboratories, test facilities, academic institutions, libraries and offices.

Through it all, however, we maintain a culture of positivity, hope, happiness and belief that we’re doing something big. Something Colossal.

Colossal is proud to be an equal employment opportunity workplace. We welcome people from all backgrounds as well as celebrate and support diversity. We are committed to providing an inclusive environment of mutual respect that is free from discrimination and harassment so everyone can thrive.

EEO is the Law

Search Firm Representatives: Colossal does not accept unsolicited assistance from search firms. No fees will be paid for a hired candidate where no pre-existing agreement is in place. We handle most recruitment in-house.

Colossal is proud to be named a Best Place to Work by BuiltIn for 3 years in a row across multiple categories in 2023, 2024, and 2025:

  • #1 on the 50 Best Startups to Work For in Dallas in 2023!
  • 100 Best Midsize Places to Work in Dallas in 2024 & 2025
  • 100 Best Places to Work in Dallas, TX (All Size Employers) in 2024 & 2025

Built In 2025 Award Lists

Great Place to Work Certification Page

Most Loved Workplace Certification Page - Proud to be certified as a most loved workplace including: most loved CEO, most loved workplaces for LGBTQ+, most loved workplaces for women, and most loved workplaces for young professionals.

Newsweek's Most Loved Workplaces 2024 Award List - Excited to be amongst the winners of Newsweek's 2024 Most Loved Workplaces!