Vladyslav Ratslav

Cloud Architect · DevOps · MLOps · SRE Consultant

I help SaaS companies migrate to Kubernetes, implement GitOps, and reduce AWS costs by 30-50%

Expert DevOps Engineer, MLOps, Cloud Architect, and SRE lead with 15+ years building cloud-native platforms, delivering up to 50% cost reductions while accelerating deployment velocity and improving reliability.

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GitOps Implementation ArgoCD or Flux

Convert deployment processes to Git-driven workflows that deliver predictable, auditable releases and faster recovery from incidents.

Kubernetes Modernization

Transform your cluster estate into a resilient, cost-efficient platform engineered for scale and availability.

Kubernetes Migration

Move applications from EC2, ECS, or on-premise infrastructure into managed EKS with minimal disruption.

CI/CD Optimization

Streamline software delivery to accelerate time-to-market while reducing deployment failures.

AWS Cost Optimization

Lower cloud spend through targeted rightsizing, commitment strategies, and storage lifecycle controls.

Cloud Architecture Design

Design cloud-native architectures that align technology with business objectives: scalable, observable, and resilient systems.

AWS Organization Hardening

Establish account strategy, policy guardrails, and governance automation to reduce risk and simplify compliance.

Fixed-scope offers

  • Kubernetes Readiness Audit€5,000
  • GitOps Migration (ArgoCD or Flux)€18,000-€30,000
  • Kubernetes Migration per application portfolio€10,000-€40,000
  • AWS Cost Optimization Sprint€7,500
  • CI/CD Optimization Sprint€8,000
  • Cloud Architecture Design target state and roadmap€12,000
  • Fractional DevOps, SRE, MLOps Platform Lead€10,000+/month

Selected case studies

GitOps rollout for a SaaS scale‑up

Implemented GitOps workflows with ArgoCD, standardized Kubernetes manifests, and introduced automated environment promotions.

Impact: Deployment incidents reduced by 70%, release time cut from hours to minutes.

AWS cost reduction for marketplace

Conducted a full AWS cost audit, rightsized compute, introduced Savings Plans, and optimized S3 lifecycle policies.

Impact: Annual AWS spend reduced by 38–40% with sustainable long‑term savings.

Platform engineering and reliability

Built an internal developer platform with self‑service CI/CD, SLOs, and structured incident response processes.

Impact: Developer velocity increased, MTTR reduced by 50%, and operational consistency improved.

Fractional DevOps leadership

Served as interim platform lead: mentoring engineers, improving incident response, and establishing hiring and growth frameworks.

Impact: Stronger team structure, clearer ownership, and improved engineering maturity.

Cloudbeds Infrastructure Transformation

Led a full Infrastructure‑as‑Code migration: imported real production infrastructure into Terraform, aligned environments, built a reusable module library, and deployed Atlantis for automated plans and safe promotions.

Impact: Zero drift, predictable IaC workflows, faster delivery, and a stable foundation for the EC2 → EKS migration.

→ Read full case study


About

Professional Summary: Cloud Architect, DevOps, MLOps, SRE expert with 15+ years building cloud-native platforms and scaling microservices for high-traffic SaaS. Delivered up to 40% AWS cost reductions, reduced deployment time by 65%, and maintained 99.9%+ uptime across 25+ services while leading teams of engineers.

Ownership: End-to-end accountability for platform outcomes
Execution: Structured planning, deep focus, and on-time delivery
Impact: Measurable results - cost, speed, reliability
Learning: Fast adoption of new tools and continuous improvement
Communication: Clear, client-facing explanations and actionable feedback

Skills

AWS, EKS, EC2, RDS, Lambda, S3, CloudFront
Kubernetes, EKS, Multi-region clusters
GitOps, ArgoCD, Argo Workflows, Argo Rollouts, Flux
Terraform, OpenTofu, IaC modules
CI/CD, GitHub, GitLab, Bitbucket, Jenkins, Ansible
Prometheus, Grafana, Datadog, Dynatrace, New Relic, OpenTelemetry
SRE, SLO design, MTTR reduction, Incident response
Cost optimization, rightsizing, autoscaling
Security, Networking, VPC, IAM, DNS
Containers, Docker, Image scaling
Leadership, on-call rotations, runbooks, mentoring
GDPR, ISO/IEC 27001, SOC2 readiness

Experience Highlights

Siemens EnergySenior DevOps Engineer (02/2026-Present): DevOps with a focus on ArgoCD, CI/CD pipelines, and cloud automation.

FreelanceIndependent Cloud Architect / DevOps / SRE Consultant (12/2025-Present): Providing freelance DevOps/MLOps/SRE services: GitOps & IaC design, Kubernetes reliability (EKS), AWS cost reduction, SLOs/incident response, and fractional leadership with hands-on team training.

CloudbedsPrincipal DevOps Engineer (08/2022-08/2025): Led platform reliability for many services, managed engineers, architected GitOps migration to GitHub + ArgoCD + EKS, reduced deployment time by 65%, and cut AWS spend by about 40%.

CloudbedsStaff (Lead) DevOps Engineer (02/2022-08/2022): Led a DevOps team, standardized Terraform IaC, built observability stacks, and reduced MTTR while improving deployment reliability.

CloudbedsDevOps Engineer (08/2017-02/2022): Operated 24/7 production for multiple services, implemented Terraform-driven IaC and CI/CD automation, and implemented proactive monitoring to maintain high availability.

CloudbedsSenior PHP Developer (11/2012-08/2017): Developed core product features (Calendar, Booking Engine, Reports) with WebSocket real-time updates and performance improvements across a large monolithic PHP system.

Donetsk National Technical UniversityDirector, Information Technology Center (06/2010-03/2015): Managed campus IT operations, led a team of network engineers, maintained on-prem services, and improved network reliability and security.

State University of Informatics and Artificial IntelligenceLead IT Specialist / Lead Network Engineer (07/2008-06/2010): Operated campus IT services, developed web applications, and managed networking and server infrastructure to ensure reliable university services.

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