At Adapty, we make it easy for mobile apps to manage in-app purchases and paywalls. We power 20K+ apps, process $3B+ in subscriptions every year, and have been growing fast for the last four years. Our mission is simple: make apps rich.
We are a team of 210+ passionate, product-driven people who love solving big challenges. Backed by top investors like 500 Startups and Surface Ventures, we are building one of mobile's fastest-growing SaaS companies and aiming for number one worldwide.
Why this role matters
Adapty runs on infrastructure we own and operate ourselves: a Proxmox and Ceph platform across OVH, Hetzner and bare metal, with parts of the stack in AWS and GCP. That platform processes billions of dollars of subscription volume a year, and today too much of it depends on a single engineer.
You are joining to take that platform over: fully owned, fully described in code, and cheap to run at scale. In your first months you will own Proxmox and Ceph end to end, drive resource rightsizing, and lead the split of our development workloads into a separate cluster.
What you'll do
Own our Proxmox and Ceph platform end to end — capacity, upgrades, performance and incident response
Run infrastructure across OVH, Hetzner and bare metal, alongside workloads in AWS and GCP
Drive resource rightsizing: find where we overpay, size it correctly, and prove the saving in the bills
Lead the separation of development workloads into a dedicated cluster, without downtime for production
Keep everything as code — Terraform, Ansible, ArgoCD and GitLab CI, with no manual changes in production
Own reliability: on-call, incident response, root cause analysis and the runbooks that follow
Support the data layer our product runs on — PostgreSQL, ClickHouse, Aerospike
About you
10+ years working with infrastructure and physical hardware, not only managed cloud
5+ years running Kubernetes and cloud platforms in production
Hands-on with bare metal and providers like OVH and Hetzner, plus AWS and/or GCP
Strong with Terraform, Ansible, ArgoCD and GitLab CI — you describe infrastructure in code by default
Real FinOps experience: you can name what infrastructure cost before and after you touched it
You take problems all the way to the root cause and to the fix, including outside your formal scope
You say things directly — risks and bad news arrive early, not after the incident
Nice to have
Production experience with Proxmox and Ceph specifically
PostgreSQL, ClickHouse or Aerospike at scale
Experience splitting shared environments into isolated clusters
Building observability and on-call practice from scratch
High-load B2B SaaS background
Strong product with industry-best metrics. Adapty is among the top 5% fastest-growing SaaS companies.
Exceptional compensation directly tied to your results.
Direct communication and ownership. No bureaucracy, no politics, just impact.
Flexible remote work. Join us from anywhere or work onsite in our Belgrade or London offices.
Professional support. Language learning, sports, health insurance, laptop coverage, and more.
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