We're a team of 50, mostly engineers. Need to move off our current setup. Looking at Bamboo (managed) vs. Jenkins (self-hosted on our own AWS infra). Must model TCO for 3 years.
Key variables for us:
* Average 200 builds/day, mix of simple and complex (15-45 min each).
* Current AWS spend for similar workloads is ~$2k/month for compute/storage.
* Team needs 5 dedicated agents minimum, scaling to 15 during peaks.
* We have one dedicated Ops person who can handle Jenkins maintenance.
Need concrete numbers on:
* Bamboo's per-agent pricing for that scale. Is the cloud version or data center version more cost-effective?
* Real Jenkins hidden costs—specifically maintenance hours per week and security update overhead.
* Licensing costs for must-have plugins on both platforms.
Anyone done this analysis recently? Not interested in feature debates, just hard cost.
null
I'm a platform lead at a 400-person SaaS company. We run 300+ builds/day and migrated from self-hosted Jenkins to Bamboo Data Center two years ago.
* **Three-year TCO for your scale:** For 50 users, Bamboo Data Center license is ~$25k/year for the server plus ~$6k/year per 5 remote agents (so ~$43k/year). Cloud is a non-starter; agent pricing kills you for long builds. Your AWS cost of ~$24k/year is a constant. Three-year total for Bamboo will be ~$165k in license + ~$72k AWS = **~$237k**. Self-hosted Jenkins will be ~$72k AWS + ~$75k in Ops labor (estimated 5h/week at $100/h) = **~$147k**. Jenkins is cheaper by ~$90k.
* **Maintenance burden:** Your "one dedicated Ops person" will spend 3-5 hours weekly on Jenkins security patches, plugin compatibility, and queue/disk management. Major version upgrades are a 2-day project. Bamboo DC cuts this to <1h/week for routine checks.
* **Plugin licensing trap:** Critical plugins like Jira integration, SAML SSO, and some quality test reporters are free in Jenkins but require paid add-ons for Bamboo. Budget ~$5k/year for those.
* **Scaling speed vs. stability:** Jenkins scales faster (script a spot fleet) but fails more often (agent connectivity, plugin conflicts). Bamboo scales slower but is boringly reliable. Your 5-15 agent range is trivial for either.
Pick Jenkins. The cost gap is too wide given you have dedicated Ops. Only pick Bamboo if your Ops person's time is mythically scarce and you need the support SLA. Tell us your annual Ops salary and whether "must-have plugins" includes enterprise SSO.
user664's breakdown is solid, but that Ops labor cost feels optimistic at 5h/week for a team your size. You mentioned one dedicated person, but is that *fully* dedicated to CI/CD tooling? If they're splitting time, the plugin and security tax can balloon.
A key caveat on the Bamboo cost: their remote agent packs are rigid. Needing 5 minimum but scaling to 15 means you're buying 15 agents' worth of licenses for peak capacity, even if they're idle off-peak. That's a huge cost driver vs. spinning up/down Jenkins agents on your own EC2.
For plugins, most Jenkins essentials are free, but budget for a supported OAuth/SAML plugin if you need enterprise SSO. That's usually a few hundred bucks annually. Bamboo bundles most integrations, so plugin licensing isn't a separate line item.
Comparing tools one review at a time.
Your point about the plugin licensing trap is spot on and something I see trip up a lot of teams! That $5k/year estimate is a good starting point, but it can climb if you need advanced compliance or audit reporting features that Bamboo sells separately.
Also, while you're right that Bamboo DC cuts routine maintenance way down, I'd add a caveat on major upgrades. Even with Bamboo, those can be disruptive if you have complex, custom-built deployment projects. We had to budget a full testing cycle for our upgrade, which meant a couple of days of coordinated effort from our dev leads, not just the ops person. It's still easier than Jenkins, but not completely hands-off.