... employee is free to accept or refuse the hours assigned to them in a given week. On-Call employees may work concurrent projects outside of their ICF assignment (as long as their outside work does not ...
... employee is free to accept or refuse the hours assigned to them in a given week. On-Call employees may work concurrent projects outside of their ICF assignment (as long as their outside work does not ...
On-Call Senior Bat Biologist
Reston, VA · On-site
... employee is free to accept or refuse the hours assigned to them in a given week. On-Call employees may work concurrent projects outside of their ICF assignment (as long as their outside work does not ...
On-Call Senior Bat Biologist
Reston, VA · On-site
... employee is free to accept or refuse the hours assigned to them in a given week. On-Call employees may work concurrent projects outside of their ICF assignment (as long as their outside work does not ...
Utility Worker I
Chesterfield, VA · On-site
$43K - $66K/yr
The employee will be compensated for being on-call, plus time worked, if any. In this position, you will: Use hand tools such as shovels, rakes, spades, etc. Use powered hand tools such as ...
Utility Worker I
Chesterfield, VA · On-site
$43K - $66K/yr
The employee will be compensated for being on-call, plus time worked, if any. In this position, you will: Use hand tools such as shovels, rakes, spades, etc. Use powered hand tools such as ...
Utility Worker I
Chesterfield, VA · On-site
$43K - $66K/yr
The employee will be compensated for being on-call, plus time worked, if any. In this position, you will: * Use hand tools such as shovels, rakes, spades, etc. * Use powered hand tools such as ...
Utility Worker I
Chesterfield, VA · On-site
$43K - $66K/yr
The employee will be compensated for being on-call, plus time worked, if any. In this position, you will: * Use hand tools such as shovels, rakes, spades, etc. * Use powered hand tools such as ...
Utility Plant Mechanic
Chesterfield, VA · On-site
$45K - $61K/yr
The employee will be compensated for being on-call, plus time worked, if any. In this position, you will: • Use hand tools such as shovels, rakes, spades, wrenches, screwdrivers, other mechanic ...
Utility Plant Mechanic
Chesterfield, VA · On-site
$45K - $61K/yr
The employee will be compensated for being on-call, plus time worked, if any. In this position, you will: • Use hand tools such as shovels, rakes, spades, wrenches, screwdrivers, other mechanic ...
Utility Plant Mechanic
$45K - $61K/yr
The employee will be compensated for being on-call, plus time worked, if any. In this position, you will: Use hand tools such as shovels, rakes, spades, wrenches, screwdrivers, other mechanic-related ...
Utility Plant Mechanic
$45K - $61K/yr
The employee will be compensated for being on-call, plus time worked, if any. In this position, you will: Use hand tools such as shovels, rakes, spades, wrenches, screwdrivers, other mechanic-related ...
On Call Banquet Server
Mclean, VA · On-site
$9.08 - $9.66/hr
As part of our team, you will learn and exemplify the Gold Standards, such as our Employee Promise, Credo and our Service Values. And our promise to you is that we offer the chance to be proud of the ...
On Call Banquet Server
Mclean, VA · On-site
$9.08 - $9.66/hr
As part of our team, you will learn and exemplify the Gold Standards, such as our Employee Promise, Credo and our Service Values. And our promise to you is that we offer the chance to be proud of the ...
JANITOR (ON CALL)
Charlotte Court House, VA · On-site
$13/hr
* We are hiring immediately for on call JANITOR positions. * Location : Charlotte County Public ... Employee shopping program * · Identify Theft Protection * · Pet Insurance * · And More.
JANITOR (ON CALL)
Charlotte Court House, VA · On-site
$13/hr
* We are hiring immediately for on call JANITOR positions. * Location : Charlotte County Public ... Employee shopping program * · Identify Theft Protection * · Pet Insurance * · And More.
Title: On Call Custodian Compensation and Shift: $28.00 per hour Monday-Friday 8:00AM-4:30PM Job ... The employee must be able to lift and/or move up to 35 pounds. * The work environment ...
Title: On Call Custodian Compensation and Shift: $28.00 per hour Monday-Friday 8:00AM-4:30PM Job ... The employee must be able to lift and/or move up to 35 pounds. * The work environment ...
Monday through Friday, on-call with availability between 8:00 AM - 5:00 PM Are you ready to work ... Employee Assistance program, parental leave, optional legal coverage and ID theft. Equal ...
Monday through Friday, on-call with availability between 8:00 AM - 5:00 PM Are you ready to work ... Employee Assistance program, parental leave, optional legal coverage and ID theft. Equal ...
Monday through Friday, on-call with availability between 8:00 AM - 5:00 PM Are you ready to work ... Employee Assistance program, parental leave, optional legal coverage and ID theft. Equal ...
Monday through Friday, on-call with availability between 8:00 AM - 5:00 PM Are you ready to work ... Employee Assistance program, parental leave, optional legal coverage and ID theft. Equal ...
JANITOR (ON CALL)
Charlotte Court House, VA · On-site
$13/hr
* We are hiring immediately for on call JANITOR positions. * Location : Charlotte County Public ... Discount Marketplace & Employee shopping program * Identify Theft Protection * Pet Insurance * And ...
JANITOR (ON CALL)
Charlotte Court House, VA · On-site
$13/hr
* We are hiring immediately for on call JANITOR positions. * Location : Charlotte County Public ... Discount Marketplace & Employee shopping program * Identify Theft Protection * Pet Insurance * And ...
On-Call Courier
Dulles, VA · On-site
$18/hr
Monday through Friday, on-call with availability between 8:00 AM - 5:00 PM Are you ready to work ... Employee Assistance program, parental leave, optional legal coverage and ID theft. Equal ...
On-Call Courier
Dulles, VA · On-site
$18/hr
Monday through Friday, on-call with availability between 8:00 AM - 5:00 PM Are you ready to work ... Employee Assistance program, parental leave, optional legal coverage and ID theft. Equal ...
On Call Custodian
Winchester, VA · On-site
$28/hr
Title: On Call Custodian Compensation and Shift: $28.00 per hour Monday-Friday 8:00AM-4:30PM Job ... The employee must be able to lift and/or move up to 35 pounds. * The work environment ...
On Call Custodian
Winchester, VA · On-site
$28/hr
Title: On Call Custodian Compensation and Shift: $28.00 per hour Monday-Friday 8:00AM-4:30PM Job ... The employee must be able to lift and/or move up to 35 pounds. * The work environment ...
AUDIO VISUAL TECHNICIAN (ON CALL)
Mclean, VA · On-site
$40/hr
Schedule : On call schedule. Shift will be based on needs. More details upon interview ... Internal Employee Referral Bonus Available * Pay Range : $30.00 per hour to $40.00 per hour We Make ...
AUDIO VISUAL TECHNICIAN (ON CALL)
Mclean, VA · On-site
$40/hr
Schedule : On call schedule. Shift will be based on needs. More details upon interview ... Internal Employee Referral Bonus Available * Pay Range : $30.00 per hour to $40.00 per hour We Make ...
AUDIO VISUAL TECHNICIAN (ON CALL)
Mclean, VA · On-site
$40/hr
Schedule : On call schedule. Shift will be based on needs. More details upon interview ... Internal Employee Referral Bonus Available * Pay Range : $30.00 per hour to $40.00 per hour We Make ...
AUDIO VISUAL TECHNICIAN (ON CALL)
Mclean, VA · On-site
$40/hr
Schedule : On call schedule. Shift will be based on needs. More details upon interview ... Internal Employee Referral Bonus Available * Pay Range : $30.00 per hour to $40.00 per hour We Make ...
AUDIO VISUAL TECHNICIAN (ON CALL)
Mclean, VA · On-site
$40/hr
Schedule : On call schedule. Shift will be based on needs. More details upon interview ... Internal Employee Referral Bonus Available * Pay Range : $30.00 per hour to $40.00 per hour We Make ...
Quick apply
AUDIO VISUAL TECHNICIAN (ON CALL)
Mclean, VA · On-site
$40/hr
Schedule : On call schedule. Shift will be based on needs. More details upon interview ... Internal Employee Referral Bonus Available * Pay Range : $30.00 per hour to $40.00 per hour We Make ...
Job Title PART TIME ON-CALL Occupational Health Physician Join a great team with a competitive ... Physician should also be on standby if employee has a reaction to allergy shot Travel Requirements ...
Job Title PART TIME ON-CALL Occupational Health Physician Join a great team with a competitive ... Physician should also be on standby if employee has a reaction to allergy shot Travel Requirements ...
Job Title PART TIME ON-CALL Occupational Health Physician Join a great team with a competitive ... Physician should also be on standby if employee has a reaction to allergy shot Travel Requirements ...
Job Title PART TIME ON-CALL Occupational Health Physician Join a great team with a competitive ... Physician should also be on standby if employee has a reaction to allergy shot Travel Requirements ...
PATIENT TRANSPORTER (ON CALL)
Leesburg, VA · On-site
$17/hr
* We are hiring immediately for on call PATIENT TRANSPORTER positions. * Location : Inova Loudoun ... Medical, Dental, Vision, Life Insurance/AD, Disability Insurance, Commuter Benefits, Employee ...
PATIENT TRANSPORTER (ON CALL)
Leesburg, VA · On-site
$17/hr
* We are hiring immediately for on call PATIENT TRANSPORTER positions. * Location : Inova Loudoun ... Medical, Dental, Vision, Life Insurance/AD, Disability Insurance, Commuter Benefits, Employee ...
On Call Employee information
What are the key skills and qualifications needed to thrive as an on call employee?
Do you get paid for just being on call?
How does the unpredictable schedule of an on call employee impact work-life balance, and what strategies can help manage it?
What is the difference between On Call Employee vs Part-Time Employee?
| Aspect | On Call Employee | Part-Time Employee |
|---|---|---|
| Work Schedule | As needed, unpredictable hours | Set hours, usually fewer than 30 hours/week |
| Certifications | Often minimal; depends on industry | Similar; may require specific certifications |
| Work Environment | Varies; often temporary or flexible | Consistent, scheduled shifts |
| Employer Usage | Used for coverage during peak times or absences | Used for ongoing, part-time roles |
On Call Employees work irregular hours based on employer needs, often with minimal notice, while Part-Time Employees have scheduled, predictable hours. Both roles may require similar certifications depending on the industry, but their work patterns and employment terms differ significantly.
What is an on call employee?

Job description
We are the Environment & Planning Division. We are passionate about doing what's right for our clients, our people, the communities where we live and work, and the environment. We are planners, scientists, program managers, communicators, economists, technologists, and strategists. We are collaborative, curious, and committed to excellence-these are qualities we value that make us who we are and inspire us to grow.
ICF is hiring a seasoned and technically accomplished On-Call Senior Bat Biologist to join our Natural Resources Team. This is an on-call hourly position. You will be able to apply a wide range of experience and demonstrated capabilities in the completion of various types of bat surveys across the Central and Eastern U.S. You will collaborate with an accomplished team of conservation planners, ecologists, and regulatory specialists. You will lead biological teams in the field in support of the preparation of through accurate data collection and collaboration with project managers. You will work with technical experts, stakeholders, and regulatory agencies to successfully deliver projects on time with high quality standards.
Field work is often performed on foot in rugged terrain and the ability to traverse long distances is required. The field work will require long and often irregular hours (potentially nights, early mornings, and weekends) in potentially adverse weather conditions. Fieldwork will be conducted in remote areas with the potential for overnight/extended travel. While some fieldwork will be conducted independently, all work will be carried out as part of a larger team effort and excellent communication skills and an ability to cooperate in a team are equally important qualities.
About On-Call Employment with ICF:
Given the seasonal or project-specific nature of our environmental work, ICF often hires environmental professionals as "On-Call" employees. On-Call employees are scheduled for work hours as they become available (we usually schedule work hours a few weeks ahead of time), and each on-call employee is free to accept or refuse the hours assigned to them in a given week. On-Call employees may work concurrent projects outside of their ICF assignment (as long as their outside work does not create a conflict of interest with the work they do for ICF). Field work would start Spring 2026 through the Summer with potential for extension. Work required is 100 percent remote and will require travel throughout Southeast and Midwest.
What you will be doing:
- Lead focused bat survey team(s) for summer mist net surveys, acoustic surveys, habitat assessments and ongoing monitoring.
- Be a positive, fun, curious, organized, innovative, committed, self-motivated and supportive addition to our local office environment.
- Be available to travel as needed for project locations throughout the Southeastern and Midwestern U.S. Travel requirements are variable, however ICF strives to work with all staff to develop mutually agreed upon fieldwork schedules.
What we need you to have (minimum qualifications):
- Bachelor's Degree in Biology, Ecology, Environmental Science or related discipline with 5+ years professional experience in the field completing species surveys OR High school Diploma with 9+ years professional experience in the field completing species surveys
- Must possess a valid individual USFWS recovery permit for summer survey activities associated with Indiana bats, northern long-eared bats, and/or gray bats
- Must have valid driver's license and successfully pass a Motor Vehicle Records (MVR) check
- Must be able to work independently in the field for extended periods of time, often times with limited mobile phone reception
- Must be able to traverse uneven, irregular, slippery, and steep terrain (up to 5 miles per day) with or without accommodation
- Ability to lift heavy items (up to 50 lbs.) if needed for field safety
Working at ICF
ICF is a global advisory and technology services provider, but we're not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer.Together, our employees are empowered to share theirexpertiseand collaborate with others to achieve personal and professional goals. For more information, please read ourEEOpolicy.
We will consider for employment qualified applicants with arrest and conviction records.
Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals withsincerely heldreligious beliefs, in all phases of the application and employment process. To requestan accommodation,please emailCandidateaccommodation@icf.comand we will be happy toassist. All information you provide will be kept confidential and will be used only to the extentrequiredto provide needed reasonable accommodations.
Read more aboutworkplacediscriminationrightsor our benefit offerings which are included in theTransparency in (Benefits) CoverageAct.
At ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate orassistwith responses during interviews (whether in-person or virtual) is notpermitted. This policy is in place tomaintainthe integrity and authenticity of the interview process.
However, we understand that some candidates may require accommodationthat involves the use of AI. Ifsuch anaccommodation is needed, candidates are instructed to contact us in advance atcandidateaccommodation@icf.com. Weare dedicated to providingthe necessary support to ensure that all candidates have an equal opportunity to succeed.
Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position.
The pay range for this position based on full-time employment is:
$67,355.00 - $138,549.00Nationwide Remote Office (US99)About ICF
Sourced by ZipRecruiter
Industry
Business management consulting
Company size
5,001 - 10,000 Employees
Headquarters location
Reston, VA, US
Year founded
1969