Resume

JSON

I build reliable, scalable infrastructure using modern cloud technologies and automation. Focused on creating efficient workflows that drive technical excellence and operational success.

Budapest, HUsasskovacs.devhi@sasskovacs.devgithub.com/sassdavidlinkedin.com/in/sassd

Experience

to PresentDuration: 1 year 3 months or more

Loxon Solutions Zrt.Senior DevOps Engineer

Own the AWS platform behind the product: multi-account, multi-region environments for banking and fintech clients across Europe, the Middle East and Asia, plus the Terraform module library and GitOps tooling the delivery teams build on.
  • Run multi-account, multi-region AWS environments for enterprise banking and fintech clients
  • Maintain a versioned Terraform module library (EKS, RDS, EFS, MSK, VPC, networking) and migrate live environments across breaking releases
  • Extend EKS clusters with Karpenter and dedicated CPU and GPU node groups for AI and analytics workloads
  • Harden platform security with customer-managed and cross-account KMS keys, External Secrets, and least-privilege IAM reviews
  • Automate release and environment tooling in Python and Bash, driven from Jenkins and Argo CD
  • Lead production incident investigation across Athena log analytics, EKS and Terraform state
  • Mentor engineers and review infrastructure changes against Terraform, Helm and Kubernetes standards

to Duration: 10 months

Loxon Solutions Zrt.DevOps Engineer

Led the move to cloud infrastructure and Kubernetes, establishing the DevOps practices and AWS architecture the platform still runs on.
  • Designed the AWS architecture using VPC, EKS, S3, Lambda, RDS, MSK, Redshift, DynamoDB, Kinesis, and EventBridge
  • Led migration from Docker Swarm to Kubernetes (Rancher on-prem, EKS on AWS)
  • Implemented GitOps with Argo CD and maintained Helm charts for application deployments
  • Built IaC automation using Terraform, CloudFormation, and Terragrunt
  • Established CI/CD pipelines with Jenkins for automated testing and deployment
  • Optimized system monitoring, logging, and troubleshooting for high availability

to Duration: 1 year 11 months

Loxon Solutions Zrt.Staff Software Engineer

Architected and delivered enterprise-grade microservices on AWS cloud infrastructure, focusing on scalable data solutions, event-driven architectures, and business intelligence capabilities.
  • Designed microservices using Java and Spring Boot for large-scale business functions
  • Built database solutions with MongoDB, Redshift, MariaDB, and PostgreSQL
  • Implemented AWS cloud infrastructure (VPC, EC2, S3, RDS, MSK, DynamoDB)
  • Delivered event-driven architectures using AWS Kinesis, EventBridge, and Kafka
  • Created BI dashboards with AWS QuickSight for data-driven decision-making
  • Led major upgrades for Java, Kafka, Spring Boot, and Debezium components

to Duration: 11 months

Loxon Solutions Zrt.Senior Software Engineer

Built cloud-native systems for a Western European retail bank, working across the full stack on a microservices architecture and leading the ETL integration effort.
  • Developed REST APIs for multiple projects using microservices architecture
  • Implemented ETL pipelines with Talend for high-volume data transfers
  • Led technical development on a European retail banking programme as core developer
  • Built cloud-native Collection System on AWS with Spring Boot and Angular
  • Delivered full-stack solutions across frontend and backend development

to Duration: 2 years 3 months

Loxon Solutions Zrt.Software Engineer

Advanced database engineering and authentication systems, specializing in Oracle optimization and implementing enterprise security solutions for banking clients across Europe.
  • Designed Oracle databases handling hundreds of millions of rows with advanced optimization
  • Developed native SQL statements, stored procedures, and functions
  • Implemented Keycloak for SSO authentication and authorization
  • Supported go-live launches at banking clients across Central and Western Europe
  • Applied advanced indexing and optimization techniques for high-performance queries

to Duration: 1 year 9 months

Loxon Solutions Zrt.Software Developer

Started professional career delivering on-premise Collection Systems to banking clients, working with Java EE full-stack development and establishing foundational skills in enterprise application deployment.
  • Delivered on-prem Collection Systems to multiple banking clients
  • Developed full-stack solutions with Java EE and PrimeFaces
  • Built web services and integrated backend systems
  • Configured application servers (WildFly, JBoss, WebLogic) for multi-node deployments
  • Established Oracle database expertise and enterprise development practices

to Duration: 3 months

MELECS EWS GmbHIntern

  • Built monitoring software in C# for a production line assembling SMT components
  • Extracted data from a proprietary database and integrated it into the monitoring application
  • Implemented email and SMS alerts that notified the relevant colleagues once defect counts passed a threshold

Education

Skills

Showing all 24 skills.

KnowledgeDeepWorkingFamiliar

Backend & Frameworks

Java, deep knowledgeSpring Boot, working knowledgeSpring Framework, working knowledgeNode.js, familiarity

Cloud & Infrastructure

Amazon Web Services, deep knowledgeHelm, deep knowledgeKubernetes, deep knowledgeTerraform, deep knowledgeTerragrunt, working knowledgeCloudFormation, familiarityRedshift, familiarity

Databases

MongoDB, working knowledgeOracle, working knowledgeSQL, working knowledgeMSSQL, familiarityMySQL/MariaDB, familiarityRedshift, familiarity

DevOps

Git/Bitbucket/Gerrit, deep knowledgeHelm, deep knowledgeKubernetes, deep knowledgeTerraform, deep knowledgeTerragrunt, working knowledge

Languages

Java, deep knowledgeBash, working knowledgeSQL, working knowledgeTypeScript, working knowledgeJavaScript, familiarityKotlin, familiarityPython, familiarity

Web Development

TypeScript, working knowledgeAngular, familiarityHTML + SASS/SCSS/CSS, familiarityJavaScript, familiarityNode.js, familiarity

Tools & Technologies

AngularArgoCDBitbucketC#CloudFormationDataGripDockerDynamoDBEC2EKSElasticSearchEventBridgeGitGradleHelmIntelliJ IDEAJavaKafkaKinesisKotlinKubernetesLambdaMavenMongoDBMSKMSSQLNode.JSOraclePyCharmPythonQuickSightRDSReactRedisRedshiftS3SpringTerraformTerragruntTypescriptVPC

References

References available upon request. Get in touch →