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1221SystemsTeamLead DevOps-Engineer
Feb. 2024 - Sep. 2025Нижний Новгород, Нижегородская область, РоссияRole: Head of DevOps, building infrastructure for mission-critical services (federal retail loyalty program, supplier service). Responsibilities: Led a DevOps team of 7 engineers: task planning, code reviews, technical deep-dives, and mentoring. Defined infrastructure architecture and scaling strategies: multi-datacenter load balancing, high availability, and autoscaling. Coordinated with architects and developers to meet SLA targets and align infrastructure with business requirements. Introduced and matured DevOps practices (GitOps, IaC, Observability), standardizing CI/CD and monitoring processes. Built a strong ownership culture within the team through incident reviews and process improvements. Technical Expertise: PostgreSQL (Patroni, Zalando Operator) – three replicated clusters with PITR backups via WAL-G + S3. Kafka (Strimzi) with ClickHouse integration for real-time analytics and event-driven architecture. CI/CD: GitLab CI, ArgoCD, Helm – automated release management with minimal manual steps. Kubernetes (Talos, vSphere), Terraform – IaC-based infrastructure across datacenters. Monitoring: Prometheus, Grafana, VictoriaMetrics – metrics, alerts, and SLA dashboards. Achievements: Implemented PostgreSQL sharding and integrated ClickHouse, boosting query performance by 50%. Introduced ArgoCD to deployment workflows, reducing release times by 75%. Built a high-performing DevOps team with clear roles, processes, and a strong knowledge-sharing culture.
АйтиСФMiddle DevOps Engineer -> Senior DevOps Engineer
Aug. 2022 - Feb. 2024Новосибирск, Новосибирская область, РоссияKey Experience: Led the transition from a monolithic architecture to microservices: audited the monolith, identified modules for independent scaling, containerized services with Docker, and managed releases via Helm in Kubernetes. Designed and maintained GitLab CI/CD pipelines with code analysis, testing, and automated deployments. Integrated Argo CD for GitOps-driven delivery, simplifying rollbacks and achieving near-zero manual intervention. Built and scaled cloud infrastructure using Terraform (VPCs, IAM, databases, load balancers) with a modular IaC approach, ensuring consistent configurations across prod, dev, and staging. Established secure connectivity between bare-metal servers and cloud infrastructure via VPN, private endpoints, and routing optimization — reducing latency for high-load applications. Planned and executed migration from bare-metal to cloud: workload assessment, data synchronization during transition, and scalable cloud strategy for peak traffic. Implemented end-to-end monitoring and observability with Prometheus, Grafana, Logstash, and Opensearch. Created custom dashboards and alerts, enabling real-time visibility and faster incident resolution. Introduced request tracing and latency metrics, cutting diagnosis time for production issues and improving system reliability.
Crypto Fintech (NDA)Junior DevOps Engineer -> Middle DevOps Engineer
Jun. 2021 - Aug. 2022Responsibilities: Participated in the design and management of cloud infrastructure for a high-load fintech service, including PostgreSQL and Kafka, with a focus on fault tolerance and performance. Supported and optimized PostgreSQL clusters (Patroni, Zalando Postgres Operator), configured replication, and monitored performance. Worked with Kafka (Strimzi Operator): configured data streaming, retention policies, and logging. Set up and administered monitoring and alerting systems with Prometheus, Grafana, and VictoriaMetrics; created dashboards and automated alerts. Developed and maintained CI/CD processes using ArgoCD, Helm, and Kustomize within a GitOps approach. Implemented PostgreSQL backup and recovery with WAL-G + S3, including PITR configuration to minimize downtime. Optimized database performance through index analysis, SQL query tuning, and load distribution management. Key Achievements: Improved PostgreSQL performance by tuning parameters and indexes, reducing database load and increasing query execution speed. Automated monitoring of Kafka and PostgreSQL metrics, enabling faster detection and resolution of issues. Contributed to CI/CD processes, customizing Helm charts and automating deployments via ArgoCD.
R-OneMiddle Technical Support Engineer -> Senior Technical Support Engineer -> Junior DevOps Engineer
Apr. 2019 - May. 2021Online Intercom Platform Support Responsibilities: Deployment of platform components using RedHat CloudForms and Yandex.Cloud (Terraform with providers such as Kubernetes, Helm, Yandex); Onboarding new instances into monitoring (standard Zabbix agent setup in Zabbix + PostgreSQL, Grafana with node_exporter and postgres_exporter); Monitoring platform health and its components via Zabbix and Grafana; Providing L3 support for the platform, from handling basic user inquiries to delivering hotfixes in collaboration with developers.
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