Tengis Chinzorigt

Tengis Chinzorigt

Platform & DevOps Engineer — CI/CD, Developer Experience

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job@thetengis.comthetengisTengisChBudapest, Hungary — open to relocation · EU Long-Term Resident, no third-country sponsorship required

Profile

Platform engineer with 5 years of DevOps and developer productivity work: CI/CD systems, internal tooling and provisioning automation that engineering teams adopt. Migrated 200+ API pipelines to a centralised GitHub Actions platform with zero downtime and no config changes required from consuming teams. Builds in C#, Python and TypeScript across Azure, OpenShift, Kubernetes, Terraform and Docker.

Experience

ExxonMobil — Budapest, Hungary

Enterprise Observability Engineer

Sep 2025 – Present
  • Built a ThousandEyes SDK automation framework that cut account migration from 3-4 days of manual work to ~3 hours, avoiding vendor professional-services cost; handed over to the MSP team.
  • Cut six-figure annual monitoring spend by removing underused synthetic capacity and redundant cloud network monitoring, with no loss of coverage.
  • Automated creation and management of the tests behind enterprise reliability dashboards, and extended monitoring to core DNS, DHCP and network services.
  • Led an OpenTelemetry collector proof of concept on AWS OpenShift (ROSA), subsequently adopted by internal application teams.

API Platform System Architect

May 2025 – Sep 2025
  • Architected a GitHub Actions v2 pipeline upgrade that eliminated recurring automation failures and improved release reliability across the platform.
  • Led DR planning, risk assessments and vulnerability assessment execution for a tier-1 API platform to ensure SLA compliance and audit readiness.
  • Migrated internal services from on-premise OpenShift to the managed OpenShift service, going first as the reference migration and writing the runbook consuming teams followed.

API Platform Senior Engineer

Dec 2023 – May 2025
  • Migrated 200+ API pipelines from Azure DevOps to a centralised GitHub Actions runner with zero downtime and zero config changes for consuming teams.
  • Designed the centralised trigger model behind that migration — one repository owning its runner and secrets — removing the need for ~200 per-team cloud app registrations.
  • Grew CI test coverage from 0% to 95%, eliminating critical regression bugs before production.

API Platform Engineer

Dec 2022 – Dec 2023
  • Built C# APIs automating cloud namespace provisioning and API gateway integration with consistent security policy enforcement.
  • Automated end-to-end TLS certificate rotation across 200+ OpenShift routes in three environments via Bash and the OpenShift CLI, reducing a full-day manual operation to under 30 minutes.

Productivity Solutions Developer

Aug 2021 – Dec 2022
  • Built and shipped 20+ custom workflow automations, reducing manual operational overhead by ~25% department-wide.

Skills

DevOps & CI/CD
GitHub Actions, Azure DevOps, Git, reusable workflows, SDK-based automation, PowerShell
Cloud & Infrastructure
Azure, OpenShift, Kubernetes, Docker, Linux, Terraform (Infrastructure as Code), AWS (OpenShift/ROSA)
Observability
Datadog (Logs, Metrics, APM, Synthetics, Dashboards), ThousandEyes (Synthetic, Browser, Network), OpenTelemetry, SLO/SLI design
Development
Python, C# (.NET), TypeScript, Bash, xUnit, REST API design

Education

BSc Mechatronics Engineering

2017 – 2021

University of Debrecen, Debrecen, Hungary

Languages

English (Professional) · Mongolian (Native)