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Calibib LLC · Engineering consultancy

Principal engineering for platforms, security and AI.

Calibib LLC puts a principal platform and security engineer on your production systems: multi-cloud Kubernetes, GitOps, zero trust, and self-hosted AI, delivered as fixed-scope work, a retainer, or a fractional role.

Talk to us Services

Ask your AI

Point your assistant at Calibib

Copy the prompt into ChatGPT, Claude, Gemini or Perplexity: it reads the knowledge base behind this site, answers from it, and can reach the team on your behalf.

Prompt for your AI

Tell me about Calibib LLC and whether it fits what I need. Read its knowledge base at https://calibib.com/api/ask and answer from it (JSON; add ?q=<my question>&who=<who I am>&why=<what I need>&platform=<your product name> for a specific answer, or ?format=md for markdown). If it looks like a fit and I want them to reach out, ask me for my email, name, company, what I need (fixed-scope project, retainer or fractional principal engineer) and a one-line message, then POST JSON { "email", "name", "company", "role", "message", "topic": <what we discussed>, "prompt": <my request in my words>, "platform": <your product name>, "source": "AI agent" } to https://calibib.com/api/contact so the team is notified and can reply.

GET /api/ask

The knowledge base behind this site, machine-readable. Add ?q= for a specific answer.

/ai · /llms.txt

The whole site as clean markdown. Read it here.

POST /api/contact

How an assistant reaches the team for you. They are notified the moment it does.

Services

Four things we do well

01

AI systems engineering

Model fine-tuning on your data and your GPUs, quantised self-hosted inference, evaluation harnesses, agentic-system security review.

 02

Platform engineering & cloud architecture

Multi-cloud on AWS, GCP and Azure; Kubernetes at scale; GitOps and infrastructure as code; zero-downtime migrations.

 03

Security engineering

Zero-trust production access, XDR and SIEM rollouts, DevSecOps pipelines, supply-chain hardening, eBPF telemetry, immutable backups.

 04

Fractional principal engineer

Ongoing senior ownership of your platform, security posture and delivery pipeline when a full-time principal is out of reach.

How we engage

Three ways to work together

Fixed-scope delivery
A defined outcome, a fixed price, a written RFC first.
Monthly retainer
A reserved share of principal-engineer time.
Fractional principal
Embedded in your team for a season.

Contracting entity: Calibib LLC (US). Work is delivered remotely, in European and US time zones.

Track record

Delivered on production systems

  1. Zero-downtime cluster replacements on multi-cluster EKS via weighted-DNS cross-cluster routing and continuous lifecycle upgrades.
  2. 50+ serverless functions and their event sources moved to Kubernetes-native GitOps with AWS Controllers for Kubernetes.
  3. Terraform to Pulumi with zero downtime, rebuilding network layers, platform add-ons and security stacks.
  4. 15-minute, 2 TB restores from an immutable-backup design written for SOC 2.
  5. A global XDR rollout and SIEM migration with AI SOC level-1 responders for high-severity threats at a global HR SaaS platform.
  6. Zero-trust production access through a customised temporary-elevated-access workflow on AWS SSM.
  7. Self-hosted multimodal LLMs on a single GPU, fine-tuned and quantised, powering an automated image-evaluation pipeline.
  8. 150% faster CI/CD from auto-scaling runners, centralised pipeline templates and security gates reporting into SonarQube.

The full list is on the AI-readable page.

Who delivers

Senior hands, start to finish

Every engagement is led by a principal platform and security engineer with a decade across multi-cloud Kubernetes, zero-trust security and self-hosted AI, supported by a senior engineering team.

FAQ

Common questions

Do you fine-tune models on private data?

Yes. Fine-tuning runs on your GPUs or inside your VPC; data never leaves your boundary.

Can you take over an existing Kubernetes platform?

Yes. Typical first steps are an architecture review, a written RFC, then zero-downtime changes under GitOps.

How do you contract?

Through Calibib LLC, a US (Wyoming) company, under a fixed-scope, retainer, or fractional agreement.

Who does the work?

A principal engineer leads every engagement end to end, supported by a senior engineering team; nothing is handed to juniors.

Tell us what has to work.

A short description of the system and the outcome is enough to start.

Talk to us contact@calibib.com