Human Resources Associate

The HR Associate plays a key role in delivering a high-quality onboarding and employee experience at STR. This role owns the end-to-end onboarding process for new hires and provides broad HR operational support across employee engagement, events, internships, learning & development, and recruiting coordination.

This is an excellent opportunity for an early-career HR professional to gain hands-on experience across multiple HR disciplines while working closely with senior HR team members and business partners in a mission-driven, technology-focused environment.

This role is Woburn-based with a hybrid schedule of 1–2 onsite days per week and remote work flexibility.

What You'll Do

Onboarding & New Hire Experience

• Own and continuously improve the end-to-end onboarding process to ensure a seamless, compliant, and welcoming experience for all new hires.
• Serve as the primary HR point of contact for new hires from offer acceptance through their first week.
• Coordinate and facilitate day-one orientation (in-person and remote), including welcoming new hires and conducting office tours.
• Partner with IT and internal teams to ensure timely hardware, software, and systems access.
• Create, maintain, and audit new hire records in ADP and internal HR systems, ensuring accuracy and compliance.
• Manage onboarding schedules, Outlook calendar invites, and cross-functional coordination.
• Collect, review, and maintain onboarding documentation (offer letters, resumes, I-9s, etc.) with strict attention to detail and regulatory requirements.

General HR Operations & Employee Engagement

• Provide day-to-day HR operational support, including data entry, document management, and responding to employee inquiries.
• Conduct regular new-hire check-ins to support successful integration and identify early issues.
• Support the planning and execution of onsite and virtual employee events, including all-hands meetings.
• Assist with employee engagement initiatives, including events, internship programs, and learning & development activities.
• Maintain accurate and up-to-date employee data in ADP.
• Support audit preparation and internal compliance reviews (I-9, OFCCP documentation, training records).
• Support internship program activities as needed.
• Provide backup support for recruiting activities, including interview scheduling, resume review, and candidate communications.

What You Bring (minimum requirements)

• Bachelor's degree in Human Resources, Business Administration, or a related field.
• 1–2 years of experience in an HR, operations, or professional office environment.
• Strong organizational skills with the ability to manage multiple priorities in a fast-paced setting.
• Excellent written and verbal communication skills; comfortable interacting across all levels of the organization.
• Proficiency with Microsoft Office (Outlook, Excel, Word, PowerPoint); experience with HRIS systems preferred (ADP strongly preferred).
• High attention to detail and ability to handle confidential information with discretion and integrity.
• Proactive, team-oriented mindset with the ability to work independently when needed.
• U.S. citizenship with the ability to obtain a security clearance (required due to DoD-related work).

STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.

STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.

STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at for more info.

STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at [email protected] and provide your contact info.

Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.