AWS Cloud Infrastructure
Architecture, networking, IAM, compute, databases, storage, load balancing, DNS, security and production infrastructure.
AWS · EC2 · EKS · ECS · RDS · S3 · VPC · IAM · Route53 · CloudFront · Lambda · CloudWatch
DC5 · Senior infrastructure consultancy
DevOps & AWS Cloud Infrastructure Consultancy
We design, automate, migrate and troubleshoot cloud infrastructure for engineering teams.
AWS · Kubernetes · Terraform · CI/CD · Cloud Migrations · Infrastructure Automation · AI-Augmented Delivery
Complex infrastructure. Practical solutions.·18+ years in IT, working remotely with clients worldwide.
Problems we solve
When infrastructure gets in the way.
Our AWS infrastructure has grown into a mess
Our Kubernetes platform is unstable or hard to maintain
Terraform needs to be introduced or cleaned up
Deployments are unreliable or too manual
We need to migrate workloads without breaking production
Our cloud bill is growing and nobody understands why
We have an infrastructure problem and our developers do not have the time or expertise to solve it
Services
Senior help for the parts that matter.
Kubernetes & EKS
Design, deployment, upgrades, troubleshooting and optimization of Kubernetes environments.
Kubernetes · Amazon EKS · Helm · FluxCD · ArgoCD · Karpenter · NGINX · CSI
Infrastructure as Code
Reproducible cloud infrastructure designed and managed as code.
Terraform · Terragrunt · CloudFormation · Ansible
CI/CD & GitOps
Reliable and repeatable software delivery pipelines.
GitLab CI · Jenkins · GitHub Actions · FluxCD · ArgoCD · AWS CodePipeline
Cloud & Database Migrations
Plan and execute infrastructure and data migrations with minimal disruption.
PostgreSQL/RDS · backup and restore · EKS workloads · legacy modernization
Infrastructure Troubleshooting
Complex infrastructure problem? We investigate it across the layers that matter.
Kubernetes · AWS networking · databases · SSO · CI/CD · TLS · performance
AI-Augmented DevOps
We use AI tooling as part of delivery itself, responsibly and with engineering judgment on production systems.
IaC review · documentation · log analysis · incident triage · workflow automation
Easiest first step
Infrastructure Audit
Not sure what needs to be fixed first? We review AWS, Kubernetes, Terraform, CI/CD, monitoring, backups, security and costs with read-only or limited access.
Request an auditArchitecture Review
Risk Assessment
Infrastructure Issues
Cost Optimization Opportunities
Security Findings
Prioritized Action Plan
Selected experience
Production problems, handled carefully.
Challenge → Approach → Result
Multi-Region Amazon EKS Upgrade
Upgraded multiple production and staging Kubernetes clusters through several EKS versions while coordinating managed node groups and core add-ons.
Challenge → Approach → Result
PostgreSQL / Amazon RDS Migration
Migrated application databases between AWS RDS environments using controlled backup/restore, ownership validation and coordinated write freezes.
Challenge → Approach → Result
Kubernetes Deployment Incident
Traced a failed deployment where GitOps reconciliation appeared successful but the required container artifact was unavailable across the Helm pipeline.
Challenge → Approach → Result
GitLab Runner Infrastructure
Designed and operated autoscaling GitLab CI runner infrastructure on AWS and evaluated migration toward Kubernetes-based runners.
Challenge → Approach → Result
Legacy Data Pipeline Modernization
Modernized a legacy data-processing workflow by separating extraction and migration components and preparing it for managed AWS services.
Technology proof
Tools in service of the system.
Cloud
AWS
Containers
Docker · Kubernetes · Amazon EKS · ECS
IaC
Terraform · Terragrunt · CloudFormation · Ansible
CI/CD
GitLab CI · Jenkins · GitHub Actions
GitOps
FluxCD · ArgoCD · Helm
Databases
PostgreSQL · Amazon RDS · Cassandra
Observability
Prometheus · Grafana · VictoriaMetrics · CloudWatch · ELK
Networking
VPC · ALB/NLB · Route53 · CloudFront · NGINX · Traefik
Security / Identity
IAM · SAML · SSO · TLS · Secrets Manager
Linux
Linux · Bash · Python
Virtualization
Proxmox · KVM
AI tooling
AI-assisted engineering workflows
How we work
Clear steps. No theatre.
01
Understand
We review the existing architecture, requirements and actual problem.
02
Design
We agree on the simplest solution that meets reliability, security and scalability requirements.
03
Implement
Infrastructure and automation are implemented as code wherever practical.
04
Validate
Changes are tested, monitored and verified against the original requirements.
05
Document & Handover
Your team receives the code, documentation and operational knowledge needed to maintain the solution.
About DC5
A practical partner for complex infrastructure.
DC5 is a Slovakia-based DevOps and Cloud Infrastructure consultancy, with roots in IT going back to 2008. We work with AWS, Kubernetes and infrastructure automation, specializing in production environments where reliability, maintainability and predictable deployments matter.
Our experience covers cloud architecture, Kubernetes platforms, Infrastructure as Code, CI/CD, database and workload migrations, observability, networking and troubleshooting complex infrastructure issues.
We prefer practical, maintainable solutions over unnecessary complexity.
Have an infrastructure problem worth solving?
Tell us where things are today. We will help you work out what should happen next.
Discuss Your Infrastructure