Zelcastalumni map

People who leave Datadog most often go to Stripe, Meta and Amazon. 14% go small. Median stay 2y 6m

These are the engineers in the Zelcast network and the profiles run through the Eng Scorer, not Datadog's headcount: 245 people on a map of 26,572, the No. 30 company on it by people. Updated August 20, 2026.

People on the map
2450.9% of everyone on the map
There now
17069% of the people here
Moved on
7531% of the people here
Median tenure
2y 6mmiddle half 1y 5m to 4y

Put Datadog side by side with another company, every number against every number.

Came from, went to

Ribbon width is the number of people who made the move. Most arrive from Amazon. Most leave for Stripe (10% of recorded departures).

65 of 266 recorded arrivals shown, 201 more from 184 other companies22 of 81 recorded departures shown, 59 more to 54 other companies

After Datadog

  • 14%Joined a startup11
  • 21%Joined a big company16
  • 65%Elsewhere

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

How long people stay

15%<1y
18%1-2y
40%2-4y
25%4-7y
1%7y+
2y 6m median tenuremiddle half 1y 5m to 4y

220 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: 279 joined, 109 left.

Caliber

83mediantop 10%89
0Eng Scorer caliber, 245 scored99

there now 83 moved on 84. Current staff and alumni score about the same.

Titles held here

  1. Software Engineer101
  2. Senior Software Engineer56
  3. Software Engineer Intern56
  4. Software Engineer II45
  5. Engineering Manager33
  6. Staff Software Engineer15
  7. Senior Engineering Manager13
  8. Solutions Engineer4

8 most common titles, by people who held them.

First job on the record for 2% of people here.

Behind the median

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

  • 2%Exceptional5 people
  • 22%Strong53 people
  • 53%Solid131 people
  • 23%Emerging or unproven56 people

245 of the 245 people here carry an Eng Scorer tier.

Exceptional and strong are the top two of the five tiers. 58 of the 245 people here with a read sit in them, 24%. A tier is the band an Eng Scorer 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 together with the one next to it, because a bucket that small is a person rather than a pattern.

Whether a title rose here

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

46%Titles that rose67 of 145 classified people

  • 46%Rose67 people
  • 52%Stayed level75 people
  • 2%Fell3 people

145 of the 245 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 who recorded one title here and then left, it is 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. A title that matches no rung is left out rather than guessed, and product, program and project managers are left out entirely, being a different ladder. That leaves 145 of the 245 people here classified, and it leans towards people who have left: someone still here on a single recorded title has nothing to be measured against.

Where they studied

  1. University of Waterloo11.2%
  2. UC Berkeley5.8%
  3. Cornell5.4%
  4. Carnegie Mellon4.6%
  5. Columbia4.6%
  6. MIT4.2%
  7. Georgia Tech3.7%
  8. UIUC3.7%

The 8 most listed schools among the 241 people here with a school on file.

Of the 241 people here with a school on file, 27 list University of Waterloo, 14 list UC Berkeley and 13 list Cornell. A person can list more than one school, so these overlap rather than add up.

Public work

one square is one in a hundred
45%have a public GitHub account on their profile

110 of the 245 people here whose profile was checked for public accounts. An account the check did not find reads the same as no account, so this is a floor rather than a census.

Across the 325 companies on the map that can show this figure, the median is 38%.

Where they are now

85% of the people who have worked at Datadog and list a location live in New York today, against 33% of everyone on the map.

Datadog
Everyone on the map
  • 85%New York209 · map 33%
  • 13%SF Bay Area31 · map 47%
  • 2%Somewhere else5

All 245 people who worked at Datadog 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 they worked at Datadog: a metro here does not mean the company has an office in it. The lower strip is the same metros across the whole map, for comparison.

Key facts

  • 245 people on the Zelcast alumni map have worked at Datadog: 170 are there now and 75 have moved on.
  • The most common next employer after Datadog is Stripe (8 people, 10% of recorded departures), followed by Meta and Amazon.
  • The most common previous employer before Datadog is Amazon (17 people), followed by Google and Meta.
  • The median tenure at Datadog is 2y 6m (middle half 1y 5m to 4y).
  • Of those who moved on from Datadog, fewer than 3 went on to a founder title, 14% joined a company with 200 or fewer people, and 21% joined a company with 10,000 or more.
  • The median Eng Scorer caliber of people who have worked at Datadog is 83 on the 0 to 99 scale (245 scored).
  • The most common title held at Datadog is Software Engineer, then Senior Software Engineer.
  • Of the 241 people here with a school on file, 27 list University of Waterloo (11.2%), then UC Berkeley (14). A person can list more than one school, so these overlap rather than add up.
  • 85% of the 245 people here who list a location live in New York today, against 33% of everyone on the map. That is where they live now, not the office they sat in while they worked here.
  • 45% of the 245 people here whose profile was checked for public accounts have a public GitHub account on it.
  • Of the 145 people here whose title could be placed on a ladder both before and after, 67 rose, 75 stayed level and 3 fell.

About this data: built from 144,786 jobs across 26,572 engineers in the Zelcast network and Eng Scorer reads, updated August 20, 2026. A move counts when the next role starts within 24 months of leaving; companies with fewer than 20 people on the map are not shown, and destinations with fewer than 3 people are folded into the totals. Caliber is the Eng Scorer score.

Worked at Datadog? See how your profile reads to a startup hiring manager, and where it ranks among 26,572 engineers.

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