After ECS
- 26%Joined a startup13
- 30%Joined a big company15
- 44%Elsewhere
Shares of those who moved on, by their next stop.
People who leave ECS most often go to Booz Allen. Of them, 26% go somewhere small. The median tenure is 1y 10m
Not ECS's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 90 people on a map of 67,181, No. 263 on it by people. Updated September 30, 2026.
- People on the map
- 900.1% of everyone on the map
- There now
- 3842% of the people here
- Moved on
- 5258% of the people here
- Median tenure
- 1y 10mmiddle half 1y to 2y 11m
Came from, went to
Ribbon width is the number of people who made the move. Most arrive from Booz Allen. Most leave for Booz Allen (8% of recorded departures).
6 of 77 recorded arrivals shown, 71 more from 63 other companies4 of 51 recorded departures shown, 47 more to 42 other companies
How long people stay
23%<1y
31%1-2y
29%2-4y
14%4-7y
2%7y+
90 stays with both a start and an end on the record.
Who comes and goes, by year
<3013
<3<314
0015
<3016
3017
6418
11319
13520
61221
10722
9<323
13<324
101525
6326
joined left2026 is a partial year
2013 to 2026: 91 joined, 53 left.
Caliber
63mediantop 10%75
0Eng Scorer caliber, 32 scored99
Titles held here
- Software Engineer14
- Senior Software Engineer8
- Data Scientist5
- Software Developer5
- Data Engineer4
- Junior Imagery Analyst4
- Senior Data Scientist4
7 most common titles, by people who held them.
First job on the record for 9% of people here.
Behind the median
Everyone here with an Eng Scorer read, placed in their caliber tier.
- 9%Solid3 people
- 50%Emerging16 people
- 41%Unproven13 people
32 of the 90 people here carry an Eng Scorer tier.
Fewer than 3 of the 32 people here with a read sit in exceptional or strong, the top two of the five tiers, too few to print as a count. A tier is the band a caliber score falls in, so this is the same measurement as the median on the caliber card, opened up.
Whether a title rose here
The level of the first title recorded here, against the last.
40%Titles that rose21 of 53 classified people
- 40%Rose21 people
- 45%Stayed level24 people
- 15%Fell8 people
53 of the 90 people here had a title that could be placed on the ladder before and after.
A title rose when the last title recorded here sits higher on the ladder than the first. For someone with one title here who then left, it's measured against the first title of their next role. The ladder runs intern, junior, mid, senior, staff or manager, principal, director, VP, then founder or C-level. Titles that match no rung are left out rather than guessed, and product, program and project managers are left out entirely as a different ladder. What's left leans towards people who have left: someone still here on one recorded title has nothing to measure against.
Where they studied
- George Mason12.2%
- Virginia Tech10.0%
- University of Maryland7.8%
- Penn State5.6%
- Johns Hopkins4.4%
- Northern Virginia Community College4.4%
- George Mason University College of Engineering and Computing3.3%
- Georgia Tech3.3%
The 8 most listed schools among the 90 people here with a school on file.
11 of the 90 people here with a school on file list George Mason, 9 list Virginia Tech and 7 list University of Maryland. A person can list more than one, so these overlap.
Public work
one square is one in a hundred
11%have a public GitHub account on their profile
10 of the 90 people here whose profile was checked for public accounts. An account the check missed reads the same as no account, so this is a floor.
31% is the median across the 857 companies that can show this figure.
Where they are now
87% of the people who have worked at ECS and list a location live in Washington DC today, against 13% of everyone on the map.
ECS
Everyone on the map
- 87%Washington DC78 · map 13%
- 3%Baltimore3 · map 0.7%
- 10%Somewhere else9
All 90 people who worked at ECS list a location, and every share here is over them.
Where they live now, from the profile as it reads today, not where they sat while working at ECS: a metro here isn't an office there. The lower strip is the same metros across the whole map.
On the same resumes
Companies that show up most often alongside ECS, at any point in a career.
Key facts
- 90 people on the Zelcast alumni map have worked at ECS: 38 are there now, 52 have moved on.
- Most leave for Booz Allen: 4 people, 8% of recorded departures.
- Most arrive from Booz Allen: 6 people.
- Median tenure at ECS: 1y 10m, middle half 1y to 2y 11m.
- Of the people with a recorded next move after ECS, fewer than 3 went to a founder title next, 26% joined a company of 200 or fewer, and 30% joined one of 10,000 or more.
- Median Eng Scorer caliber here: 63 on the 0 to 99 scale, across 32 scored people.
- Most common title held here: Software Engineer, then Senior Software Engineer.
- Top school: George Mason, listed by 11 of the 90 people here with one on file (12.2%). Then Virginia Tech (9).
- 87% of the 90 people here who list a location live in Washington DC today, against 13% across the map. Where they live now, not the office they sat in while they worked here.
- 11% of the 90 people here whose profile was checked for public accounts have a public GitHub.
- 21 rose, 24 stayed level, 8 fell, out of the 53 people here whose title could be placed on a ladder before and after.
About this data: built from 352,028 jobs across 67,181 engineers in the Zelcast network and Eng Scorer reads, updated September 30, 2026. A move counts when the next role starts within 24 months of leaving. Companies under 20 people on the map aren't shown, and destinations under 3 people fold into the totals. Caliber is the Eng Scorer score.
Worked at ECS? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.
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