09/11/2026 updated

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Cloud Architect & AWS Solution Architect

Bratislava, Slovakia
Only remote
Postgraduate degree: Science and Informatics
Bratislava, Slovakia
Only remote
Postgraduate degree: Science and Informatics

Profile attachments

AWS_Roman_Ceresnak.pdf

Microsoft AzureCloud ComputingDatabase Storage StructuresDevOpsInfrastructure ManagementCloud ServicesAWS CLIAzure Machine LearningWorkflowsAWS CDKArchimateAWS LambdaCloud TechnologiesInfrastructure as Code (IaC)AWS VPCAWS ECSCloudhubAWS AuroraKubernetesAWS GlueAWS Fargate3-tier ArchitecturesCloud IntegrationCloud OptimizationCloudwatchTerraformOracle Cloud InfrastructureAWS EKS
AWS Cloud Architecture
Expertise in designing scalable, high-availability, and fault-tolerant architectures on AWS, utilizing services such as EC2, S3, RDS, Lambda, and VPC. Holder of 30 different AWS certifications including AWS Certified Solutions Architect Professional and AWS Certified DevOps Engineer Professional.

Infrastructure as Code mit Terraform
Umfangreiche Erfahrung in der Entwicklung und Verwaltung von Terraform-Skripten zur Automatisierung der AWS-Infrastrukturbereitstellung, um konsistente, effiziente und wiederholbare Deployments sicherzustellen.

CI/CD Pipeline Development
Implementation and management of CI/CD pipelines using GitHub Actions and AWS CodePipeline to streamline build, test, and deployment workflows, promoting continuous integration and delivery practices.

Kubernetes & Container-Orchestrierung
Einsatz von Kubernetes zur Verwaltung containerisierter Anwendungen, einschliesslich der Entwicklung und Pflege von Helm Charts und Terraform-Skripten zur Automatisierung der Bereitstellung und Konfiguration von Kubernetes-Ressourcen.

Microsoft Azure
Erfahrung als Azure Solution Architect Expert mit Kenntnissen in der Planung und Umsetzung von Loesungen auf der Microsoft Azure Plattform, bestaetigt durch die Azure Solution Architect Expert Zertifizierung.

Monitoring & Logging
Aufbau und Pflege robuster Monitoring- und Logging-Systeme mit AWS CloudWatch, Prometheus und Grafana zur Sicherstellung der Infrastruktur- und Anwendungsgesundheit sowie -performance.

DevOps-Kultur & Automatisierung
Foerderung von DevOps-Kultur, Best Practices und Automatisierung in der Zusammenarbeit mit funktionsuebergreifenden Teams fuer verbesserte Workflows und schnelle Lieferung hochwertiger Loesungen.

Datenbanken (MongoDB, MySQL, SQL)
Kenntnisse in relationalen und nicht-relationalen Datenbanken, einschliesslich MongoDB, MySQL und SQL, sowie Erfahrung im Design und der Implementierung von CRUD-Operationen und Datenbankstrukturen.

Generative AI & Machine Learning auf AWS
Praktische Erfahrung mit Amazon Bedrock, SageMaker, Lambda und Textract zum Aufbau und Deployment von GenAI-Modellen, zur Automatisierung der Dokumentenverarbeitung und zur Aktivierung serverloser ML-Inferenz-Workflows.

Enterprise Architecture (UML, Archimate, TOGAF)
Erstellung umfassender Unternehmens-, Anwendungs- und Technologieschichten unter Verwendung von UML, Archimate und TOGAF, abgestimmt auf funktionale und technische Kundenanforderungen.

Languages

EnglishFluentRussianFluent

Project history

AWS Solution Architect - Tech lead

DevOpsGroup, Bratislava
Working as a Cloud Architect specializing in designing scalable, high-availability, and fault-tolerant architectures on AWS utilizing services like EC2, S3, RDS, Lambda, and VPC. Assisting organizations in migrating to the cloud, developing and managing Terraform scripts, implementing CI/CD pipelines using GitHub Actions and AWS CodePipeline, establishing monitoring and logging systems with AWS CloudWatch, Prometheus, and Grafana, and creating Proof of Concepts to validate architectural designs. Hands-on experience with Amazon Bedrock, SageMaker, Lambda, and Textract to build and deploy GenAI models. Technologies used: AWS, Terraform, Kubernetes, UML, CI/CD.

Solution Architect - Team leader of projects for the Ministry of the Interior of the Slovak Republic

Objectify, Bratislava
Responsible for designing, deploying, and managing scalable, high-availability, and fault-tolerant systems on AWS. Developed and maintained Terraform scripts to automate provisioning and management of AWS resources. Implemented and managed CI/CD pipelines using GitHub Actions and AWS CodePipeline. Set up monitoring and logging solutions using AWS CloudWatch, Prometheus, and Grafana. Developed comprehensive business, application, and technology layers aligned with customer functional and technical requirements. Technologies used: AWS, Terraform, Kubernetes, UML, CI/CD, Archimate, Togaf.

AWS/Azure Solution Architect

Atos, Bratislava
Worked closely with product teams to define and prioritize partner feature requests. Managed project planning, resource allocation, scope, schedule, status and documentation. Provided support during customer implementations and applied industry best practices. Conducted technical workshops and education sessions for customers and teams. Deployed infrastructure in the AWS and Oracle Clouds using Terraform. Wrote RFP and POC documentation for clients in the bank sector. Developed and maintained Helm charts and Terraform scripts to automate provisioning, configuration, and management of Kubernetes resources. Technologies used: AWS, Terraform, Kubernetes, UML, CI/CD, Archimate, Togaf.

AWS/Azure Solutions Architect

Adastra, Bratislava
Designed architecture strategies for large-scale system-wide application deployments. Developed application architecture strategy to align with employer business goals. Drafted visual representations of software architecture design for presentation to stakeholders. Created infrastructure in the AWS cloud for monitoring systems like Grafana, Prometheus, Apache Airflow and ETL jobs. Implemented Apache Airflow services for automatic trigger Python codes. Implemented and managed CI/CD pipelines using GitHub to automate the build, test, and deployment of containerized applications on Kubernetes. Technologies used: AWS, Terraform, Kubernetes, UML, CI/CD.

Freelancer

AWS/Azure Devops, Paris
Developed and maintained user documentation to establish product understanding. Implemented functionality in the fitness app and supported video streaming. Deployed and managed infrastructure in the Amazon Cloud for services like Amazon EKS, S3, CloudFront. Deployed infrastructure and services via CloudFormation and Terraform. Set up and maintained monitoring, logging, and security solutions using tools like Prometheus, Grafana, Fluentd, and Kubernetes-native security tools. Technologies used: AWS, Terraform, Kubernetes, UML.

Web developer

Janus, Vienna
Implemented functionality to monitor cars and their next pickup place for pharmacy institutions. Implemented microservice architecture and dealt with the connectivity of third-party vendors. Implemented API calls and designed CRUD Operations in relational and nonrelational databases. Technologies used: Go, SQL, AWS, React.

Net web developer

Solition, Bratislava
Designed enhancements and updates for subsystems of end-user applications software running on local, networked and Internet-based platforms. Analyzed proposed technical solutions based on customer requirements. Created backend functionality to connect communication between the frontend and backend parts of the application. Designed databases and requests in MsSQL databases.

C# and SQL developer

IFS, Zilina
Developed robust, scalable, modular and API-centric infrastructures. Collaborated with clients to define solution requirements. Updated old code bases to modern development standards, improving functionality. Created database objects like triggers, procedures, and functions in MsSQL and made connections with the frontend part of the applications. Technologies used: C# and SQL, UML.

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