Substitute teaching in Frederick County Public Schools: how the Frontline job board works
A plain-English guide for substitutes in Frederick County Public Schools (Maryland): 12 schools that post sub jobs, when jobs tend to post, how postings are written, and how to get the jobs you want on Frontline.
By the Sub Concierge team · Updated September 30, 2026
Frederick County Public Schools, in Maryland, posts its substitute jobs through Frontline Absence Management (the system many subs still call Aesop). If you're on the sub list here, everything below is about that board: what shows up on it, how it's written, and what it takes to get the jobs you actually want.
Schools that post substitute jobs
We've seen postings from 12 sites in Frederick County Public Schools. Exactly as they appear on the board, which matters if you filter by school name:
- Ballenger Creek Elementary School
- Carroll Manor Elementary School
- Frederick Classical Charter School
- Frederick High School
- Hillcrest Elementary School
- Middletown Elementary School
- Middletown High School
- Middletown Primary School
- Orchard Grove Elementary School
- Parkway Elementary School
- Tuscarora Elementary School
- Valley Elementary School
Spelling on the board is what counts. A district that writes “ELEM” instead of “Elementary”, or lists a campus under a classified-staff name, will trip up any filter that expects the official name. Copy the names above when you set preferences anywhere.
How Frederick County Public Schools writes its postings
Every Frontline district writes its posting titles its own way: some put the grade in the title (“Grade 5”, “TK Teacher”), some only the subject, some only the teacher's name. Aide and assistant jobs share the board with teaching jobs, and special-education jobs are labeled with whichever abbreviation the district settled on years ago. Spend a week reading titles on the Frederick County Public Schools board before you decide what to filter on.
When jobs post in Frederick County Public Schools
Postings here are spread across the day. Of the 40 postings we've tracked in Frederick County Public Schools, about 0% first appeared between 4 and 8 AM local time, 100% during the school day, and 0% in the evening or overnight. The single busiest hour was around 3 PM.
43% of those postings were full-day jobs (six hours or more). 0% started by 8 AM. 3% were multi-day assignments.
These numbers come from postings Sub Concierge watched for its members in this district. They describe what we saw, not every job the district ever posted, and they shift with the season.
How to get the jobs you want here
- Get on the preferred lists. Teachers in Frederick County Public Schools can name preferred subs, and preferred subs see a posting before the rest of the list does. A short note to a teacher after a good day is the highest-return thing you can do.
- Know the board's spelling. School names and titles above are how the district actually writes them. Filters and alerts that don't match the spelling silently miss jobs.
- Decide your rules once. Which schools, which grades, full-day only or not, how much notice you need. Subs who decide in advance say yes in seconds; subs who decide per posting lose the race.
- Cancel cleanly. Frontline tracks cancellations, and districts notice. Take fewer jobs and keep them.
For the mechanics of the board itself, read how the Frontline job board works and why jobs disappear in seconds.
Sub Concierge is an independent service operated by Sub Concierge LLC. It is not affiliated with, endorsed by, or sponsored by Frontline Education or Frederick County Public Schools. School and posting names are shown as they appear on the public job board; timing figures are aggregates from postings we watched and may not match every job the district posts.