Vladislav Bubnov

• Designing and maintaining fault-tolerant Kubernetes infrastructure for a multi-tenant SaaS platform (Managed Kubernetes, Selectel)
• Developing universal Helm charts with dynamic parameterization via values for multiple locations, following DRY principles
• Launching new locations and data centers: infrastructure provisioning from scratch
• Driving adoption and implementation of microservices architecture
• Containerizing services and optimizing Docker images (build from scratch, multistage builds)
• Building CI/CD pipeline: building and delivering code to dev/stage/prod (GitLab CI, werf, Yandex Container Registry)
• Managing two distributed PostgreSQL clusters (Citus): troubleshooting, analysis and performance optimization
• Implementing PostgreSQL backup strategy with PITR: migration from pg_probackup to WAL-G with streaming to S3, reducing backup/restore time and size. Implementing 3-2-1 backup scheme
• Infrastructure automation with Ansible: writing roles, testing with Molecule
• Incident response and post-mortem analysis
• Building monitoring and alerting system from scratch (Prometheus, Grafana, Alertmanager), developing a custom Prometheus exporter for SMS gateway (Python)
• Centralized logging: implemented Promtail, then migrated to FluentBit → FluentD → Loki stack
• Implementing OpenTelemetry standard: setting up trace collection (Tempo), writing documentation for the development team
• DDoS protection implementation (CrowdSec)
• Developing internal tools and scripts (Python, Go, Bash): anomaly detection, troubleshooting automation, tenant migration, YouTrack integration
• Initiating and coordinating launch of a new product (chat platform): project owner role, deploying LiveKit for video calls, developing Electron desktop client prototype
• Implementing dynamic dev environments in Kubernetes — 70% faster testing cycles, testers work via browser without local deployment
• Infrastructure cost optimization: moving stateless services to preemptible nodes while dedicating critical components (PostgreSQL, Redis, message bus, task scheduler) to a dedicated pool — 20% cost reduction
• Implementing Redash for dev environments: giving developers quick access to test database data without direct cluster connections
• Implementing ChatOps in Slack: integration with Alertmanager, Grafana, Sentry, YouTrack, GitLab CI, escalations, cron job statuses, prototyping semantic search over message history
• Hiring and mentoring a DevOps engineer: preparing a full replacement to ensure process continuity
• Actively using LLM tools to boost productivity (ChatGPT, Claude, Cursor)

• Provisioning and maintaining educational infrastructure in Yandex Cloud: VMs, Kubernetes clusters, Nexus (Terraform, Ansible)
• Building CI/CD pipelines (GitLab CI, ArgoCD)
• Developing a self-service web application for students (Python, Flask): LDAP authentication, automatic kubeconfig generation, dynamic namespace creation with RBAC on first login — reduced on-call engineer load by 25%
• Nexus maintenance automation: script for cleaning up stale repositories via API, solving issues with the built-in cleanup mechanism
• Developing automation tools to reduce routine workload for the team

• Code reviews of student assignments, reviewing IaC configurations and CI/CD pipelines
• Conducting webinars on course topics (Docker, Kubernetes, CI/CD, monitoring)
• Mentoring and advising students on DevOps practices

Outsourcing company, primary client — VseInstrumenty.ru

• Implementing DORA metrics to measure engineering team effectiveness
• Participating in SRE team: incident response, conducting post-mortems
• Working with cloud providers (Yandex Cloud, Selectel): designing and managing cloud infrastructure
• Ensuring PostgreSQL HA: Patroni + Consul as KV store
• Participating in logging system migration to Vector + ClickHouse + Redash
• Developing an on-call SRE dashboard (Python, Flask): one-click traffic switching between data centers — reducing human error and speeding up incident response
• Onboarding and training new team members

Outsourcing company, primary client — VseInstrumenty.ru

• Migrating services to Kubernetes: deploying and maintaining two bare-metal clusters (Kubespray)
• Containerizing services, writing Helm charts, deploying via werf
• Building monitoring system from scratch (Prometheus, Grafana, Alertmanager)
• Building centralized logging (ELK/EFK stack)

• Promoted after senior employee departure: took over IT infrastructure management and team coordination
• Maintaining and developing previously implemented systems (Docker, CI/CD, monitoring, logging)
• Hiring and training a new system administrator, preparing a replacement

• Automating standard application server deployments (Bitrix): writing Ansible roles instead of manual configuration
• Configuring and optimizing web servers (Nginx, Apache)
• Deploying Elasticsearch, developing a network route monitoring utility (traceroute → FluentBit → Elasticsearch)
• Configuring MySQL replication

• Building centralized logging system (Elasticsearch, FluentD/FluentBit, Kibana)
• Migrating infrastructure to Docker
• Building CI/CD process from scratch
• Implementing automation and code quality tools (SonarQube, Mattermost)
• Deploying monitoring system (Prometheus + Alertmanager + Grafana)
• Automating infrastructure tasks (Ansible, Bash, Python)

• Administering infrastructure for 320+ workstations
• Managing Active Directory and network infrastructure
• Administering Windows/Linux servers

Internet service provider

• First-line support: receiving and processing requests, diagnostics and troubleshooting, incident response
• Grew into second-line functions: working with network engineers, using Zabbix
• Testing new equipment, maintaining and building the knowledge base