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Антон User

@antlar

Senior SRE / AI Platform Engineer focused on Kubernetes, MLOps infrastructure, observability, and developer productivity.

Serbia

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What I'm looking for

Looking for senior remote Platform Engineering/SRE roles focused on Kubernetes platforms, private cloud, developer productivity, observability, reliability, and AI platform infrastructure. Strong in Kubernetes security/multi-tenancy, Go/Python automation, OpenTelemetry, IaC, CI/CD, and incident response.

Senior SRE / Platform Engineer with 11+ years of experience building Kubernetes platforms, CI/CD systems, observability stacks, DevSecOps workflows, and automation for production infrastructure. My recent work focuses on internal developer platforms, private cloud automation, and AI-assisted infrastructure operations.

At X5 Tech, I built DevBox, an internal developer platform MVP for managing organizations, projects, services, repository checks, and generation of Dockerfile, Helm, and GitLab CI artifacts. I also developed AI/SRE automation, including an autonomous SRE Investigator Agent using LangGraph, MCP/A2A, Kubernetes, GitLab, Vault, Prometheus, and Langfuse tracing.

I have hands-on experience with Kubernetes, Helm, Gateway API, Envoy Gateway, ingress-nginx, Vault-backed secrets, OIDC/JWT, GitLab CI/CD, Terraform, Ansible, Linux, Docker, S3-backed delivery, DNS, TLS, and load balancers. On the observability side, I have worked with Prometheus, VictoriaMetrics, vmalert, Alertmanager, Grafana, Loki, Grafana Alloy, OpenTelemetry Collector, Vector, and Filebeat.

I am especially interested in roles at the intersection of Platform Engineering, SRE, AI Platform, MLOps/LLMOps infrastructure, and developer productivity. I like building platforms that make engineering teams faster while improving reliability, observability, and operational safety.

Experience

Work history, roles, and key accomplishments

Current

Senior SRE / Platform Engineer

Current

X5 Tech

Aug 2025 - Present (10 months)

Built internal developer platform and private-cloud automation for Kubernetes services. Developed AI/SRE Investigator Agent with LangGraph, MCP/A2A, GitLab, Vault, Prometheus and Langfuse. Delivered Gateway API, observability and CI/CD platform patterns.

Senior DevOps Engineer

Positive Technologies

Jun 2024 - Jul 2025 (1 year 1 month)

Led DevOps infrastructure for Standoff365. Built DevSecOps scanning platform, improved Kubernetes networking/API Gateway reliability, modernized Docker/CI delivery flows, and delivered AI/RAG knowledge-management MVP with FastAPI, Langfuse, Neo4j and Qdrant.

Senior DevOps Engineer

ITentika

Jun 2022 - May 2024 (1 year 11 months)

Scaled DevOps practices across 30+ projects. Built Docker delivery pipelines, operated Prometheus/Grafana/Alertmanager monitoring, introduced GitOps-style configuration delivery, trained developers on Docker and Kubernetes.

DevOps Engineer

DataArt

Aug 2021 - May 2022 (9 months)

Migrated a business-critical project from VMs to Kubernetes with zero downtime. Built Prometheus monitoring with custom exporters, automated Kubernetes bootstrap through AWX/Ansible, deployed Kyverno policies, and researched GitOps options.

DevOps Engineer

Infobip

Sep 2020 - Aug 2021 (11 months)

Automated WhatsApp Business API infrastructure across VM and Kubernetes environments. Built migration scripts, improved internal operations tooling, moved Jenkins bash automation into a centralized platform, and supported customer-facing incidents.

System Engineer / DevOps

Reksoft

Jun 2019 - Aug 2020 (1 year 2 months)

Deployed on-premise Kubernetes infrastructure for Java microservices testing and client environments. Built clusters with Rook, Nexus, TeamCity, Stolon PostgreSQL, Prometheus Operator, Jaeger, MetalLB and Kubespray.

DevOps Engineer

GS Labs

Apr 2017 - Jun 2019 (2 years 2 months)

Maintained Kubernetes test infrastructure, configured Prometheus/Grafana/Alertmanager federation, developed Helm charts and GitLab CI pipelines, built internal automation tooling, and supported migration from monoliths to microservices.

Education

Degrees, certifications, and relevant coursework

St. Petersburg State Institute of Psychology and Social Work

Incomplete higher education, Applied Psychology / Social Psychology

2010 - 2014

Unfinished higher education program focused on applied psychology, social psychology, communication and human behavior. Useful background for cross-team communication, stakeholder work and incident collaboration.