Oleg K.

A DevOps Engineer / Software Developer with many years of experience in front-end, backend and infrastructure development and maintenance. Uses cloud technologies, custom code, open-source solutions, automation and DevOps practices to solve problems and achieve customer goals. Wears many hats switching as needed between designing architecture, coding, managing cloud infrastructure and troubleshooting production issues. Being a member of 100% remote teams spread across time zones and continents, participated in shaping internal processes to mitigate challenges of a remote workspace. Has in-depth practical knowledge of SDLC including change management, production maintenance and monitoring automation, risk identification, disaster recovery strategies, incident management, resolution and retrospective reviews, continuous integration and delivery (CI/CD), cloud platforms and solid grasp of computer science fundamentals and design patterns. Current professional interests include: - scalable cloud applications (AWS, Azure, Docker, Kubernetes, EKS, ECS, Serverless) - infrastructure as a code for SaaS applications (Terraform, CloudFormation, Pulumi) - SaaS applications cost optimisation (autoscaling, resource management, serverless) - CI/CD with quality and security checks built-in (automatic testing, SCA, SAST, DAST, Docker scans) - monitoring, alerting, disaster recovery strategies implementation for cloud and on-premise Recent Tech Stack: - Languages: Python, Go, Shell/Bash, JavaScript/TypeScript, C#, PHP, C++, Java- - Databases: MySQL, PostgreSQL, Redis, Cassandra, ElasticSearch, MongoDB, Snowflake, MS SQL - Web Services: Express.js, Laravel/Lumen, Flask, Django, ASP.NET WebAPI, Swagger - Web Frontend: Vue.js, React - Messaging: RabbitMQ, [login to view URL], ZeroMQ, AWS SQS/SNS/EventBridge, Azure EventHub/ServiceBus - Testing: Jest, Mocha, Puppeteer, Cypress, Locust, NUnit, XUnit, JUnit, PHPUnit, Selenium, Postman - OS: Linux (Amazon Linux, CentOS, Debian, Ubuntu, Mint, Alpine), Windows, MacOS - Cloud platforms: --- AWS: VPC, EC2, IAM, Cognito, ELB, Lambda, EventBridge S3, CloudFront, ECS, EKS, ECR, EBS, Aurora, RDS, DynamoDB, API Gateway, CloudWatch, CloudTrail, Route53, Quicksight --- Azure: VM, DevOps, Stream Analytics, App Service, Functions, CosmosDB, AKS, ACS, Storage - Infrastructure-as-a-Code: Terraform, CloudFormation, Pulumi, Packer - CI/CD and DevOps Tools: Git, SVN, Docker, Kubernetes, Helm, ArgoCD, CircleCI, Github Actions, TeamCity, Jenkins, Bitbucket, Azure Devops, AWS Secrets Manager, HashiCorp Vault, SonarQube, Sonatype Nexus, Checkmarx, Whitesource, Datadog, PagerDuty, Grafana, Prometheus, OpsGenie