Senior HR Operations Specialist

We are seeking a highly organized and detail-oriented HR Operations Specialist to join our dynamic Human Resources team. This role plays a critical part in executing and supporting HR operational activities, with a strong focus on benefits administration, employee onboarding/offboarding support while ensuring a seamless and compliant employee experience.

Key Responsibilities

• Own the day-to-day administration of employee benefits programs, including health insurance, retirement plans, and supplemental benefits
• Lead annual benefits events (e.g., annual open enrollment, 401(k) audits, vendor transitions), including communications strategy, testing, and implementation
• Partner with external vendors and internal stakeholders to ensure smooth benefits enrollment, issue resolution, and effective communication.
• Serve as the first point of contact for benefits-related questions, providing guidance on eligibility, coverage, and facilitating the initiation and approval of life events in Workday
• Review and manage leave requests in coordination with our leave administration vendor, coordinate with internal teams, and maintain accurate records in Workday.
• Support consistent administration of leave policies across the organization.
• Assist in onboarding processes including pre-employment background checks, new hire orientations and I-9 compliance.
• Provide administrative support for employee offboarding processes, including documentation, and systems access removal
• Collaborate with HR Business Partners to ensure accurate tracking and execution of offboarding tasks.
• Support global mobility efforts (e.g., entering transfer data in Workday, serving as a liaison for employees during the mobility process).
• Conduct audits and reviews to help ensure compliance with HR policies and regulatory obligations.
• Review employment-related documentation, such as offer letters, employment agreements, to ensure accurate entry in HRIS
• Act as a point of contact for HR-related inquiries from employees, managers, and external stakeholders and provide timely, solutions-oriented support
• Partner with the HRIS team to identify and implement system enhancements, resolve technical issues, and drive process automation.
• Contribute to the continuous improvement of HR processes and the development of policies aligned with legal and best practice standards.

Qualifications and Skills

• 7-10 years of progressive HR Generalist experience, including significant exposure to benefits, HR operations, and employee lifecycle processes.
• Demonstrated success owning benefit projects and compliance events (e.g., open enrollment, 401k audits).
• Familiarity with HR policies and labor law fundamentals, especially in support functions.
• Workday experience required.
• Bachelor’s degree in Human Resources or a related field; HR certifications (e.g., SHRM-CP, PHR) are a plus.
• High integrity and discretion when handling sensitive information.
• Strong organizational skills with the ability to manage multiple priorities in a fast-paced setting.
• Excellent written and verbal communication skills.
• Proficient in Microsoft Office Suite (Excel, Word, PowerPoint).

Please note that immigration sponsorship is not offered for this specific opening.

The Base Salary range for the role is included below. Base salary is only one component of total compensation; all full-time, permanent positions are eligible for a discretionary bonus and benefits, including paid leave and insurance. Please visit Benefits - US | IMC Trading for more comprehensive information.

About Us

IMC is a global trading firm powered by a cutting-edge research environment and a world-class technology backbone. Since 1989, we’ve been a stabilizing force in financial markets, providing essential liquidity upon which market participants depend. Across our offices in the US, Europe, Asia Pacific, and India, our talented quant researchers, engineers, traders, and business operations professionals are united by our uniquely collaborative, high-performance culture, and our commitment to giving back. From entering dynamic new markets to embracing disruptive technologies, and from developing an innovative research environment to diversifying our trading strategies, we dare to continuously innovate and collaborate to succeed.