DevOps • Platform Engineering • Cloud Infrastructure

Build faster. Ship safer.

AWS, EKS, Kubernetes, Terraform, GitHub Actions, and self-hosted GitLab. Focused on delivery automation, platform consistency, safer infrastructure changes, and systems that stay maintainable after the first rollout.

AWS / EKS
Terraform
GitHub Actions
Self-hosted GitLab
Platform Engineering

View profiles See work areas

focus:
  cloud:
    - aws
    - eks
    - iam_oidc_irsa
  delivery:
    - github_actions
    - self_hosted_gitlab
    - arc_runners
  infrastructure:
    - terraform
    - kubernetes
    - platform_automation
  priorities:
    - reliability
    - reviewability
    - repeatability

CI/CD Reusable workflows, runners, approvals, and safer delivery paths.

AWS EKS foundations, IAM patterns, cluster access, and environment structure.

Kubernetes Node strategy, scaling, workload conventions, and platform hygiene.

Terraform Modules, state boundaries, imports, drift control, and safer changes.

About

David Buňka

DevOps engineer based in Pohořelice, South Moravia, Czech Republic. Daily work centers on AWS, EKS, Kubernetes, Terraform, GitHub Actions, and self-hosted GitLab. Most of the engineering focus is on platform reliability, delivery automation, cleaner infrastructure boundaries, and repeatable operating patterns for teams shipping through CI/CD every day.

Career profile

DevOps and platform engineering in cloud-native environments
AWS and Kubernetes infrastructure with EKS at the center
Terraform-heavy infrastructure design, imports, refactoring, and state strategy
Daily work with GitHub Actions and practical experience with self-hosted GitLab

Focus

Core areas

Technical areas that define the current DevOps and platform engineering profile.

Cloud platforms on AWS

AWS environments with clear boundaries across compute, IAM, networking, access, and deployment paths.

AWS platform foundations
EKS cluster architecture and operations
IAM, OIDC, and IRSA patterns

CI/CD engineering

Delivery workflows optimized for repeatability, reviewability, and operational safety.

GitHub Actions reusable workflows
self-hosted and ARC runner strategy
GitLab CI pipelines for self-hosted environments

Kubernetes operations

Day-2 engineering for platforms that need predictable scaling, cleaner standards, and fewer production surprises.

workload conventions and cluster hygiene
Karpenter node strategy and scaling
deployment reliability and platform guardrails

Infrastructure as code

Terraform codebases designed to stay understandable across teams, repositories, and environments.

module design and repository structure
state separation, imports, and migrations
drift control and review-friendly changes

Toolset

Tools and platforms

Core stack used across cloud platforms, delivery pipelines, and infrastructure automation.

AWS
EKS
Kubernetes
Karpenter
Terraform
GitHub Actions
Actions Runner Controller
Self-hosted GitLab
GitLab CI
Docker
Linux
Bash
Python
OIDC / IRSA
Observability

Engineering approach

prefer reusable building blocks over one-off fixes
optimize for maintainability, not just first deployment
reduce plan noise and pipeline complexity
keep delivery fast without losing operational control

Work

Representative work areas

Areas that align with the current toolset and day-to-day engineering focus.

GitHub organization and delivery automation

Reusable workflows, repository standards, secrets handling, and self-hosted runner patterns for teams using GitHub Actions as a daily delivery platform.

AWS EKS platform engineering

Cluster operations, IAM integration, node lifecycle strategy, workload scheduling, and conventions that keep Kubernetes platforms manageable over time.

Terraform refactoring and state strategy

Splitting large codebases into clearer boundaries, improving import workflows, and reducing plan noise across teams and environments.

Mixed GitLab and GitHub delivery environments

Working across self-hosted GitLab and GitHub-based delivery flows where consistency, access control, and release safety matter.

Profiles

Public profiles

Public contact points and profiles related to David Buňka.

LinkedIn GitHub GitLab

Primary toolset

AWS, EKS, Kubernetes, and Karpenter
Terraform modules, imports, and state boundaries
GitHub Actions, reusable workflows, and runner strategy
Self-hosted GitLab and GitLab CI delivery flows