Jan Nevařil

Experience

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  Self Employed

  Jan 2012 - Jan 2014

  Web Developer

  PHP, HTML, MySQL programming and webdesign, Search Engine Optimization (SEO).

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  Tietoevry

  Jan 2014 - now

  Primary responsibility for monitoring and automation in AWS multi-account environments, with additional contributions to service deployments and cloud architecture.Designed and developed Terraform modules (GitHub) for alarms, log pipelines, and infrastructure components, enabling reusable and consistent deployments across accounts.Implemented observability with CloudWatch, Prometheus, Grafana, and Fluent Bit, providing coverage for critical AWS services and Kubernetes workloads and delivering unified visibility across 10+ accounts.Extended monitoring to applications and services using APM integrations and AI-driven anomaly detection, ensuring performance baselines and early detection of service degradations.Built a centralized governance account to aggregate monitoring events; developed Lambda-based pipelines to transform and forward alerts to ServiceNow, Jira Service Management, and Opsgenie, ensuring consistent incident handling and reducing operational overhead.Automated alert workflows with Lambda and DynamoDB TTL, enabling deduplication, enrichment, and SES notifications — significantly reducing duplicate alerts and noise.Implemented Kubernetes observability using Flux CD GitOps, deploying kube-prometheus-stack, exporters, and blackbox probes to ensure continuous availability and proactive detection of issues across critical services.Contributed to broader AWS deployments, including VPC networking, IAM roles, serverless components, and S3 log pipelines, strengthening service reliability and scalability.Supported the end-to-end lifecycle of solutions: requirements gathering, Terraform development, GitOps deployment, testing, documentation, and operational baselining. Show less Designed, implemented, and maintained SCOM environments monitoring 5,000+ servers, ensuring reliability across enterprise-scale infrastructures.Built new monitoring infrastructures, including Operations Managers, SQL clusters, IIS, reporting, and gateway servers.Delivered customer consulting on SCOM monitoring solutions, advising on best practices and customizing implementations to meet specific needs.Led SCOM migrations and upgrades, including projects in highly secure environments requiring strict compliance with security standards.Developed a large PowerShell integration script between SCOM and ServiceNow, ensuring complete and reliable alert delivery with enriched data — eliminating gaps in incident creation and giving operations full control over alert values.Authored and customized SCOM Management Packs (MPs), building tailored monitoring solutions and modifying existing ones to meet operations team requirements.Automated monitoring operations with PowerShell, and established baselines for application teams.Produced technical designs and documentation across network, hardware, Active Directory, and application layers, improving standardization and knowledge sharing. Show less Acted as the primary Windows Server administrator for customer environments, serving as the main point of contact for issues and projects.Administered and supported 1,200+ Windows Servers (2008–2016) in VMware and Hyper-V environments.Managed Active Directory, DNS, DHCP, and security patching in line with ITIL practices.Automated recurring tasks with PowerShell, reducing manual workloads and improving reliability.Delivered customer-facing projects including KMS deployments, data migrations, and DHCP transitions, ensuring smooth execution and minimal downtime. Show less

  • Monitoring Architect (AWS Infrastructure, Monitoring & Operations)

    Jan 2024 - now

  • Infrastructure Architect, Cloud Monitoring

    Jan 2018 - Jan 2024

  • Senior Windows Server Administrator

    Jan 2017 - Jan 2018

  • Windows Server Administrator

    Jan 2014 - Jan 2017