Platform engineering services — build the internal platform your developers actually use

Open-source Cozystack (a CNCF project we create and maintain) Ænix Platform, the supported commercial distribution Aenix builds, operates and migrates it.

Platform engineering services build and operate the internal developer platform that product teams use for self-service environment provisioning, deployment, observability, secrets, and identity. Aenix delivers these services as the engineering team behind Cozystack, an open-source CNCF project (Apache 2.0) that runs VMs and containers on one Kubernetes API via KubeVirt, with Cilium eBPF networking, LINSTOR/DRBD storage, and a Tenant CRD multi-tenancy model. Engagements run in three modes: a 14-28 day Platform Readiness Assessment, a 3-12 month platform build with structured knowledge transfer, or a managed platform service with a documented in-house exit path. The work targets organizations with multiple product teams, slow time-to-environment, or compliance and sovereignty pressure, typically from roughly three product teams or thirty engineers upward.

Quick facts

  • What it is Build, operation, and acceleration of an internal developer platform with self-service golden paths, multi-tenancy, and a sustainable operational model.
  • License Apache 2.0 (no per-CPU / per-core licensing)
  • Status Cozystack is a CNCF project (Sandbox since 2025-02-28; Incubating expected late summer 2026)
  • Who it is for Engineering organizations with multiple product teams, mixed Kubernetes/IaC stacks, or compliance and sovereignty pressure; break-even around 3 product teams or 30 engineers.
  • Engagement modes Platform Readiness Assessment (14-28 days), platform build (3-12 months), or managed platform service with documented in-house exit path.
  • Platform foundation Cozystack: KubeVirt VMs and containers on one Kubernetes API, Cilium eBPF networking, LINSTOR/DRBD storage, Tenant CRD multi-tenancy.
  • Delivery EU-based engineers across CEE and Central Asia; no hyperscaler bias; structured knowledge transfer so your team operates the platform.

Platform engineering is no longer a debate; it’s an operational layer that mature engineering organizations now treat as core infrastructure. The question is not whether to invest in it, but whether to build the function in-house slowly, hire a consultancy that hands off to junior implementers, or work with engineers who have already operated multi-tenant platforms in production.

Ænix is the platform engineering team behind Cozystack, a CNCF project running in production with service providers, banks, and AI operators. We extend our team into yours — building, operating, or accelerating the internal developer platform your organization actually needs.

Pairs with: Ænix Private Cloud Platform — its developer self-service layer is the product form of this engagement. Free Platform Engineering Maturity Assessment →.

Production-grade platform team · Apache 2.0 foundation · Engineers, not architects · EU + Central Asia

Who needs structured platform engineering

Platform engineering as a function fits when at least three of the following hold:

  • Multiple product teams with overlapping infrastructure needs and divergent provisioning paths.
  • Time-to-environment measured in weeks, not hours — and that hurts product velocity.
  • Existing DevOps / SRE team is maxed on operations — no capacity for golden-path work.
  • Multiple Kubernetes distributions / cloud providers / IaC patterns in production simultaneously.
  • Compliance, sovereignty, or cost pressure that requires architectural change rather than tooling change.
  • A board-level platform decision is upcoming — repatriation, consolidation, vendor selection.

If three or more apply, structured platform engineering is the leverage. If your organization has a single 10-person dev team and one set of services, lighter-weight DevOps practice is more cost-effective.



What an Ænix platform engineering engagement produces

1. Internal developer platform with golden paths Self-service paths for the 5-10 most common product-team needs (environment provisioning, application deployment, observability onboarding, secrets, identity). Built on Kubernetes with GitOps, IaC, and an operational model your team can sustain.

2. Multi-tenant platform foundation Tenant CRD model, per-tenant quotas, RBAC, observability scope, and audit trails. Suitable for service providers serving external customers or enterprise platforms serving internal business units.

3. Operational model and runbooks Documented platform-team responsibilities, on-call patterns, incident response, capacity planning. The platform survives engineer turnover.

4. Enablement of your team Pair programming, knowledge transfer, runbook authoring with named owners. Ænix engineers leave; your team operates the platform.

The output is a platform that’s been actually built and tested in production with realistic workloads — not a reference architecture or a slide deck.


Where platform engineering programs commonly fail

The platform team builds for itself, not for product teams Beautiful internal architecture, low product-team adoption. Self-service is technically present but operationally clunky; product teams keep filing tickets. Failure: the platform’s value is measured by usage, not by elegance.

Backstage as a destination, not a platform Many teams confuse “internal developer portal” (Backstage UI) with “internal developer platform.” Backstage without an underlying opinionated platform is wallpaper over the same operational mess. Failure: catalog is rich, paths still take weeks.

Vendor-led platform with a roadmap that’s not yours Buying a “complete platform engineering solution” locks the architecture into the vendor’s roadmap. Failure: platform team’s authority is reduced to escalating tickets to a vendor support team.

Platform team with no product mindset Engineering excellence without a product orientation produces an internally-consumed product nobody asked for. Failure: platform exists, no one uses it the way it was designed.


How Ænix engages

Current state
Multiple product teamsWeeks to environmentMaxed DevOps / SRE
engaged by
Ænix platform engineering engagement
Readiness AssessmentPlatform buildManaged service
delivers
Internal developer platform
Golden pathsMulti-tenancyOperational model
runs on
Cozystack foundation
VMs + containersOne Kubernetes APITenant CRD multi-tenancy

The engagement runs in three modes, scaled to where you are:

  • Platform Readiness Assessment (14-28 days) — written assessment of current state and recommended target architecture. Output: a plan you can execute internally or with us. See Platform Readiness Assessment.
  • Platform build engagement (3-12 months) — Ænix engineers integrated with your platform team, building the foundation, golden paths, and operational model. Knowledge transfer is structured throughout; your team owns operation by the end.
  • Managed platform service — for organizations that need the platform but cannot build internal capacity. Ænix operates the platform under a managed-services arrangement, with documented exit path to in-house operation.

Most engagements start with the assessment. The decision between options 2 and 3 is informed by the assessment’s headcount-and-capacity workstream.


Why Ænix specifically

  • We operate platforms in production. Cozystack is in production with service providers and regulated enterprises. The decisions in our engagements are calibrated against running systems, not against tooling reviews.
  • Open-source platform foundation. Cozystack is an open-source CNCF Project. The platform we recommend is a platform you own. No vendor-roadmap lock-in.
  • No hyperscaler bias. Our recommendations reflect technical fit and operational reality, not partnership economics. We say “stay in cloud” when that’s right, and “go on-prem” when that’s right.
  • EU-based engineers across CEE and Central Asia. Time-zone friendly for European customers; aligned with EU data sovereignty requirements; understanding of regulator dialog from inside the same jurisdictions.

Ready to scope your build? Book a call →

Engagement structure

WhenWhatOutput
Day 030-min discovery call (free)Confirm fit, identify scope and stage
Phase 1: Assessment (14-28 days)Platform Readiness AssessmentWritten assessment, target architecture, Phase 2 roadmap
Phase 2: Build (3-12 months)Platform foundation, golden paths, runbooks, knowledge transferProduction-ready internal developer platform
Phase 3: Operate (ongoing)Optional managed-services arrangement, or fully in-house operationPlatform that survives engineer turnover

For methodology see Platform Readiness Assessment.


Platforms we’ve built

We’ve built or operated platforms for service providers running multi-tenant clouds, regulated enterprises building internal developer platforms, AI/GPU operators, telecom operators, and sovereign-cloud initiatives across the EU, DACH, and Central Asia. Workloads include VMs, containers, managed databases, S3, and GPU.

The logos above are production Ænix Public Cloud Platform deployments. Named references for the NDA-covered engagements are shared on the discovery call.


Pricing and engagement scope

The assessment is fixed-price, quoted before it starts. Build is time-and-materials or fixed-scope depending on scope clarity; managed operations are an annual retainer. If Phase 2 follows the assessment, the assessment cost is credited against it, subject to scope. We accept RFI / RFP through standard procurement channels.


More questions? See the platform engineering vs DevOps guide or talk to us.

Start with a 30-minute discovery call

Free. No prep needed. We confirm fit, identify your platform engineering stage, and tell you whether assessment, build, or managed engagement matches your situation.

Or read more:


Ænix is the platform engineering team behind Cozystack — a CNCF Project, Kubernetes Certified Distribution, OpenSSF Best Practices. We build, operate, and accelerate platform engineering programs across the EU, DACH, and Central Asia.

Frequently asked questions

What is the difference between platform engineering, DevOps, and SRE?

Platform engineering builds and operates the internal platform that product teams consume. DevOps is a cultural-and-tooling practice inside product teams. SRE is a reliability function with operational responsibilities. They overlap in tooling but answer different questions.

Do we have to use Cozystack to engage Aenix?

No. Cozystack is the platform Aenix recommends when it fits, which covers most multi-tenant or sovereign use cases. For organizations invested in OpenShift, vanilla Kubernetes, or vendor-led stacks, Aenix extends the platform you already run.

How large does our organization need to be?

The engagement scales from roughly 50-person engineering organizations to 5000-person organizations. The break-even for structured platform engineering is approximately 3 product teams or 30 engineers; smaller single-team setups are better served by lighter DevOps practice.

Can Aenix extend our existing platform team rather than replace it?

Yes. A time-and-materials engagement adds 2-5 senior platform engineers to your existing team, working under your governance and on-call patterns.

What does the ramp-down look like at the end of an engagement?

Engagements include structured knowledge transfer throughout, named in-house owners, and runbook authoring. By the end of the build phase your team operates the platform without Aenix. An optional managed-services arrangement extends support if needed.

How does an engagement typically start?

Most engagements begin with a free 30-minute discovery call to confirm fit and stage, followed by a 14-28 day Platform Readiness Assessment that produces a written target architecture and roadmap. The build-versus-managed decision is informed by the assessment’s capacity workstream.

Ready to talk?

Book a 30-minute discovery call — no commitment. We confirm fit, the right platform, and the next steps.