Volodymyr Puchak

• Configuration management
• Containerization
• Monitoring
• Clouds/virtualization migration
• Continuous integration/delivery

Project Description:

The Nucleus195 platform provides access to global research coverage and exceptionally strong emerging and frontier market offerings. With insightful research from major brokers, large independent houses, and research boutiques, Nucleus195 delivers the uncommon ideas and insights that investors need.

Responsibilities:

• Kubernetes clusters migration from one cloud provider to another.
• CI and CD configuration with CircleCI

Tools & Technologies:

GKE, CircleCI, docker, CertManager, Nginx Ingress Controller.

Project Description:

PoC to demonstrate microservice application management on Kubernetes

Responsibilities:

• Creating and managing Kubernetes cluster on AWS
• GitLab CE installation and configuration using Helm charts.
• Microservices management using Ambassador
• CI and CD with GitLab CI
• TLS configuration with LetsEncrypt

Tools & Technologies:

AWS, kops, Kubernetes, Helm, GitLab CI, CertManager, Ambassador, Docker

Project Description:

Anomaly detection system based on Apache Kafka.

Responsibilities:

• Creating and configuring Kubernetes clusters on a mix of bare-metal and virtual VMs
• Preparing CI and deployment based on helm charts
• Prometheus and Grafana-based monitoring

Tools & Technologies:

Confluent Platform: Kafka, Zookeeper, Kafka streams, ksql-server. Kubernetes, Helm, Logstash, Rabbitmq, Prometheus, Grafana

Project Description:

Microservice-based architecture, written using Java, running as docker containers.

The project aim is to deploy more frequently, have faster lead times, make changes with fewer failures, and optimize infrastructure costs.

Responsibilities:

• Creating application environments on AWS using Terraform
• Configuration management with Chef
• Containers orchestration using HashiCorp stack: Nomad, Consul, Vault
• CI and CD process configuration
• Implementing proactive monitoring
• Establishing a disaster recovery process
• Teaching and training others

Tools & Technologies:

JAVA 8, HAProxy, Maven, Chef, TeamCity, Terraform, Nomad, Consul, Packer, Vault, Docker, AWS (EC2, S3, RDS, IAM, VPC, DynamoDB, Lambda, Route53), RabbitMQ, Redis

Project Description:

IdaaS is a cloud-based identity management solution for Harmony project. IdaaS is designed as an agile authorization service that can be used in wide variety of applications and companies with different security roles, groups.

Responsibilities:

• Creating and managing kubernetes deployments, services, daemonsets and pods
• Creating Docker images
• Improving the existing monitoring system and adding additional features
• Logs and metrics collection, analysis and visualization
• Writing documentation
• Integration with third-party services

Tools & Technologies:

JAVA 8, Tomcat, Spring boot, Hibernate, MySQL, Junit, Angular 1.5, Docker, Google Cloud Engine, Kubernetes, Travis CI, Sensu, Logstash, Filebeat, JIRA

Support of the blockchain Java and Golang project in the aws environment. Usage of ECR, ECS, CloudFormation, CloudFront, Route53, EC2, VPC, IAM, ELB, S3, SSM, SQS, Lambda, CloudWatch, API Gateway, Rackspace.