After T-Mobile
- 10%Joined a startup12
- 43%Joined a big company51
- 47%Elsewhere
Shares of those who moved on, by their next stop.
People who leave T-Mobile most often go to Microsoft, Google and Amazon. Of them, 10% go somewhere small. The median tenure is 1y 4m
Not T-Mobile's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 158 people on a map of 67,181, No. 154 on it by people. Updated September 30, 2026.
- People on the map
- 1580.2% of everyone on the map
- There now
- 3925% of the people here
- Moved on
- 11975% of the people here
- Median tenure
- 1y 4mmiddle half 8m to 2y 3m
Came from, went to
Ribbon width is the number of people who made the move. Most arrive from Accenture. Most leave for Microsoft (6% of recorded departures).
10 of 127 recorded arrivals shown, 117 more from 110 other companies20 of 121 recorded departures shown, 101 more to 93 other companies
How long people stay
36%<1y
31%1-2y
23%2-4y
9%4-7y
1%7y+
130 stays with both a start and an end on the record.
Who comes and goes, by year
3<312
0013
3314
<3<315
3<316
15717
171018
132019
141120
211621
121522
171423
131324
18525
10626
joined left2026 is a partial year
2012 to 2026: 161 joined, 124 left.
Caliber
76mediantop 10%84
0Eng Scorer caliber, 40 scored99
Titles held here
- Software Engineer20
- Data Scientist12
- Senior Software Engineer12
- Software Engineer Intern12
- AI5
- Machine Learning Engineer5
- Mobile Expert4
- AI Engineer3
8 most common titles, by people who held them.
First job on the record for 17% of people here.
Behind the median
Everyone here with an Eng Scorer read, placed in their caliber tier.
- 30%Solid12 people
- 55%Emerging22 people
- 15%Unproven6 people
40 of the 158 people here carry an Eng Scorer tier.
Fewer than 3 of the 40 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 rose42 of 104 classified people
- 40%Rose42 people
- 50%Stayed level52 people
- 10%Fell10 people
104 of the 158 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
- University of Washington11.1%
- Georgia Tech10.5%
- Carnegie Mellon3.9%
- Osmania University3.3%
- Seattle University3.3%
- University of Central Missouri3.3%
- University of Washington Bothell3.3%
- George Mason2.6%
The 8 most listed schools among the 153 people here with a school on file.
17 of the 153 people here with a school on file list University of Washington, 16 list Georgia Tech and 6 list Carnegie Mellon. A person can list more than one, so these overlap.
Public work
one square is one in a hundred
20%have a public GitHub account on their profile
32 of the 158 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
27% of the people who have worked at T-Mobile and list a location live in Seattle today, against 5% of everyone on the map.
T-Mobile
Everyone on the map
- 27%Seattle43 · map 5%
- 16%SF Bay Area25 · map 41%
- 11%Washington DC17 · map 13%
- 10%New York16 · map 18%
- 9%Dallas-Fort Worth14 · map 0.9%
- 4%Atlanta6 · map 1%
- 3%Kansas City4
- 2%Los Angeles3 · map 5%
- 19%Somewhere else30
All 158 people who worked at T-Mobile 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 T-Mobile: 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 T-Mobile, at any point in a career.
Key facts
- 158 people on the Zelcast alumni map have worked at T-Mobile: 39 are there now, 119 have moved on.
- Most leave for Microsoft: 7 people, 6% of recorded departures. Then Google and Amazon.
- Most arrive from Accenture: 4 people. Then Citi and JPMorganChase.
- Median tenure at T-Mobile: 1y 4m, middle half 8m to 2y 3m.
- Of the people with a recorded next move after T-Mobile, fewer than 3 went to a founder title next, 10% joined a company of 200 or fewer, and 43% joined one of 10,000 or more.
- Median Eng Scorer caliber here: 76 on the 0 to 99 scale, across 40 scored people.
- Most common title held here: Software Engineer, then Data Scientist.
- Top school: University of Washington, listed by 17 of the 153 people here with one on file (11.1%). Then Georgia Tech (16).
- 27% of the 158 people here who list a location live in Seattle today, against 5% across the map. Where they live now, not the office they sat in while they worked here.
- 20% of the 158 people here whose profile was checked for public accounts have a public GitHub.
- 42 rose, 52 stayed level, 10 fell, out of the 104 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 T-Mobile? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.
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