Zelcastalumni map

People who leave BlackBerry most often go to Microsoft, Amazon and IBM. Of them, 18% go somewhere small. The median tenure is 4m

Not BlackBerry's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 68 people on a map of 67,181, No. 350 on it by people. Updated September 30, 2026.

People on the map
680.1% of everyone on the map
There now
00% of the people here
Moved on
68100% of the people here
Median tenure
4mmiddle half 3m to 1y 4m

Put BlackBerry side by side with another employer.

Came from, went to

Ribbon width is the number of people who made the move. Most arrive from IBM. Most leave for Microsoft (7% of recorded departures).

BlackBerry42 in · 69 out
3 of 42 recorded arrivals shown, 39 more from 38 other companies12 of 69 recorded departures shown, 57 more to 55 other companies

After BlackBerry

  • 18%Joined a startup12
  • 32%Joined a big company21
  • 50%Elsewhere

Shares of those who moved on, by their next stop.

How long people stay

64%<1y
15%1-2y
13%2-4y
8%4-7y
0%7y+
4m median tenuremiddle half 3m to 1y 4m

39 stays with both a start and an end on the record.

Who comes and goes, by year

12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
joined left2026 is a partial year

2012 to 2026: 43 joined, 47 left.

Caliber

83mediantop 10%91
0Eng Scorer caliber, 36 scored99

Titles held here

  1. Software Developer13
  2. Software Engineer Intern6
  3. Software Development Intern5
  4. Software Engineer3

4 most common titles, by people who held them.

First job on the record for 35% of people here.

Behind the median

Everyone here with an Eng Scorer read, placed in their caliber tier.

  • 25%Exceptional or strong9 people
  • 42%Solid15 people
  • 33%Emerging or unproven12 people

36 of the 68 people here carry an Eng Scorer tier.

9 of the 36 people here with a read sit in exceptional or strong, the top two of the five tiers, 25%. 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. A tier holding fewer than 3 people is printed with the one next to it, because that few is a person rather than a pattern.

Whether a title rose here

The level of the first title recorded here, against the last.

27%Titles that rose16 of 59 classified people

  • 27%Rose16 people
  • 59%Stayed level35 people
  • 14%Fell8 people

59 of the 68 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

  1. University of Waterloo44.8%
  2. University of Toronto6.0%
  3. Florida International University4.5%
  4. UC Berkeley4.5%

The 4 most listed schools among the 67 people here with a school on file.

30 of the 67 people here with a school on file list University of Waterloo, 4 list University of Toronto and 3 list Florida International University. A person can list more than one, so these overlap.

Public work

one square is one in a hundred
49%have a public GitHub account on their profile

33 of the 68 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

40% of the people who have worked at BlackBerry and list a location live in the San Francisco Bay Area today, against 41% of everyone on the map.

BlackBerry
Everyone on the map
  • 40%SF Bay Area27 · map 41%
  • 32%New York22 · map 18%
  • 9%Seattle6 · map 5%
  • 4%Washington DC3 · map 13%
  • 15%Somewhere else10

All 68 people who worked at BlackBerry 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 BlackBerry: a metro here isn't an office there. The lower strip is the same metros across the whole map.

Key facts

  • 68 people on the Zelcast alumni map have worked at BlackBerry: 0 are there now, 68 have moved on.
  • Most leave for Microsoft: 5 people, 7% of recorded departures. Then Amazon and IBM.
  • Most arrive from IBM: 3 people.
  • Median tenure at BlackBerry: 4m, middle half 3m to 1y 4m.
  • Of the people with a recorded next move after BlackBerry, fewer than 3 went to a founder title next, 18% joined a company of 200 or fewer, and 32% joined one of 10,000 or more.
  • Median Eng Scorer caliber here: 83 on the 0 to 99 scale, across 36 scored people.
  • Most common title held here: Software Developer, then Software Engineer Intern.
  • Top school: University of Waterloo, listed by 30 of the 67 people here with one on file (44.8%). Then University of Toronto (4).
  • 40% of the 68 people here who list a location live in SF Bay Area today, against 41% across the map. Where they live now, not the office they sat in while they worked here.
  • 49% of the 68 people here whose profile was checked for public accounts have a public GitHub.
  • 16 rose, 35 stayed level, 8 fell, out of the 59 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 BlackBerry? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.

Previous on the mapAttentiveNo. 349 by people · 68 on the mapNext on the mapExxonMobilNo. 351 by people · 68 on the map

Arrow keys move along the map.