J

JEM Systems

Supplies fire safety equipment and designs building systems

Executive Assistant

Full-TimeUpdated on 10/23/2026
No salary listed
Mid
Bachelor's
Phoenix, AZ, USA
HybridHybrid work at the Phoenix, Arizona location.
Administrative & Executive AssistanceExecutive Support

About the job

Requirements
  • A bachelor's degree in Executive Secretarial Studies, Business Administration, Communications, or a related field.
  • At least 3 years of experience in executive assistance; experience supporting C-level executives is preferred.
  • Experience working in multinational companies or with international teams.
  • Fluent English with strong verbal and written communication skills.
  • Native-level Portuguese with strong written communication skills.
  • Ability to manage multiple priorities and demonstrate organizational and time-management skills.
  • Ability to work autonomously, take initiative, solve problems, and exercise sound judgment.
  • Ability to anticipate needs, make appropriate decisions, and recognize when escalation is required.
  • Flexibility to adapt to changing priorities and schedules.
  • Professional demeanor and interpersonal communication skills.
  • Discretion when handling confidential and sensitive information.
  • Ethical conduct, integrity, and accountability.
  • Proficiency in Microsoft Office, particularly Outlook, Word, Excel, and PowerPoint, and/or Google Workspace.
  • Familiarity with artificial intelligence tools and their practical application in administrative and executive workflows.
  • Ability to quickly learn and adapt to new technologies, systems, and digital tools.
Responsibilities
  • Manage the CEO's calendar, adjust proactively to changing priorities, and coordinate schedules across U.S. and Brazil time zones.
  • Oversee correspondence, requests, and communications directed to the CEO, independently handling matters within scope and escalating issues requiring executive attention.
  • Organize and prioritize the CEO's commitments to allocate time to strategic and business-critical matters.
  • Coordinate domestic and international travel, including flights, transportation, accommodations, documentation, itineraries, and expense reporting.
  • Prepare, review, and organize documents, presentations, reports, and business correspondence in English and Portuguese.
  • Prepare meeting agendas, attend executive meetings when appropriate, draft meeting minutes, and follow up on action items and outcomes.
  • Coordinate calendars, priorities, and executive-level demands with the U.S.-based Executive Assistant across the United States and Brazil.
  • Represent the CEO in interactions with senior leadership, clients, partners, vendors, and other stakeholders as needed.
  • Handle confidential, sensitive, and strategic information discreetly and with integrity.
  • Support special projects, corporate events, executive initiatives, and other strategic or administrative requests.
  • Anticipate the CEO's needs and identify opportunities to improve organization, efficiency, and workflow.
Desired Qualifications
  • Experience supporting C-level executives.

About the company

JEM Systems is a life safety equipment distributor and engineering services company headquartered in Phoenix, Arizona. The company supplies fire alarm parts, control panels, detectors and related components to contractors and organizations responsible for protecting buildings. Its design work covers fire alarms, sprinkler systems, three-dimensional building models and in-building radio coverage used by emergency responders. Customers obtain equipment and technical services through the same business, from selecting parts and planning systems to testing, programming and putting systems into service. Founded in 2019, JEM operates through distribution and engineering offices serving customers in North America and other markets.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Phoenix, AZ

Founded

2019

Get referred to JEM Systems

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Time off is quantified: the remote sprinkler role lists two vacation weeks and five sick days annually.
  • Insurance support includes families: the assistant vacancy lists 50% health, dental and vision coverage for employees and dependents.
  • Retirement participation is listed: the remote modeling-management role includes a 401(k) plan.

What critics are saying

  • Executive support crosses languages and time zones: the assistant vacancy requires English, Portuguese and U.S.-Brazil calendar coordination.
  • Remote work still entails travel: the modeling-manager role specifies travel and an Arizona-time working schedule.
  • Project needs govern credentials: the sprinkler vacancy lists Level II or III engineering-technician certification as preferred or required.

What makes JEM Systems unique

  • Quoting has a published target: the design service advertises an 18-hour turnaround for quotes.
  • Deliverables are detailed: the design package includes battery calculations, voltage-drop predictions and system interface drawings.
  • Manufacturer certification support: JEM helps customer teams gain certification and oversees installation through its project managers.

Help us improve and share your feedback! Did you find this helpful?