Senior Office Manager Jobs in Addison, IL (NOW HIRING)

Job Title: Assistant Office Manager

Location: Chicago, IL

Industry: Legal Services

Compensation: $70,000–$85,000 annually

Work Schedule: Monday–Friday, 9:00 AM–5:00 PM, fully onsite

Benefits: This position is eligible for medical, dental, vision, life insurance, disability coverage, paid time off, annual merit increases, discretionary bonus potential, and 401(k).

About Our Client:

Addison Group is partnering with our client, a well-established law firm, to hire an Assistant Office Manager for their Chicago headquarters. This is a newly created direct hire opportunity offering long-term growth and the chance to work closely with senior leadership in a collaborative office environment. The selected candidate will partner directly with the current Office Manager and play a key role in daily operations, with the opportunity to grow into a leadership position over time.

Job Description:

The Assistant Office Manager will support the day-to-day administrative and operational functions of a busy legal office. This individual will work closely with firm leadership to help maintain efficient office operations, support attorneys and staff, and ensure a professional and organized workplace. The ideal candidate is proactive, detail-oriented, and comfortable handling multiple priorities in a fast-paced environment.

Key Responsibilities:

• Support daily office operations and administrative workflows across the firm

• Assist with maintaining office procedures, policies, and operational standards

• Coordinate onboarding, employee support, scheduling, and general HR-related activities

• Provide administrative support to attorneys and internal staff as needed

• Help maintain a high level of client service and professional communication

• Assist with office technology, legal software systems, and operational processes

• Support billing and administrative documentation processes

• Maintain confidentiality while handling sensitive employee and client information

• Partner with leadership to ensure a collaborative and efficient office environment

Qualifications:

• Bachelor’s degree preferred; equivalent professional experience will be considered

• 3–7 years of office management or administrative leadership experience, ideally within a legal environment

• Familiarity with legal office procedures and terminology

• Strong organizational, communication, and multitasking skills

• Proficiency with Microsoft Office and office management systems/software

• Ability to work independently while supporting a team-oriented environment

• Professional demeanor with sound judgment and discretion

Additional Details:

• Newly created position with strong long-term growth potential

• Opportunity to work directly alongside senior office leadership and eventually transition into a larger management role

• Seeking someone with prior office management experience who can step into a fast-paced legal environment confidently

• Candidates must be comfortable working onsite daily

Perks:

• Annual merit increases and discretionary bonus opportunity

• Stable and collaborative office environment

• Opportunity for long-term career growth within leadership

• Competitive benefits package and retirement plan eligibility shortly after hire

• Business casual office setting

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Addison Group complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities. Reasonable accommodation is available for qualified individuals with disabilities, upon request.