Contact information

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You can get this candidate's contact information from https://www.work.ua/resumes/17309337/

Work experience

Системний інженер

from 11.2025 to 03.2026 (5 months)
EPAM, Дистанційно (IT)

Github Copilot challenge
Engineering Excellence Bootcamp

DevOps engineer

from 01.2022 to 10.2025 (3 years 10 months)
Deloitte, Дистанційно (Консалтинг, бухгалтерія, аудит)

- investigated the issue with Intercom WordPress plugin.
- setup EC2 instance with python scripts.
- investigated SMPP protocol.
- configured Amazon Linux 2 with openvpn and squid.
- configured to email if 2 sagemaker endpoints exists for more then 2 days.
- solved DMARC issues.
- used Lens but more comfortable with kubectl.
- configured Remote Desktop Services SAL subscription and removed with help of AWS support.
- calculated cost savings in AWS.
- pulled docker images from public ECR, tagged and pushed to private ACR.
- configured Azure portal access.
- configured EC2 instance with NodeJS under PM2, MySQL, Python with TLS>1.1.
- configured MySQL
- configured NGINX and discovered https://letsencrypt.org/ with certbot configuration.
- configured RabbitMQ and Redis chart.
- configured MongoDB IP cluster connection.
- developed Github Workflow for Maven Docker build.
- investigated Cloudtrail Event history.
- applied certificate to ingresses.
- configured notifications for successful docker builds.
- developed Manual Docker deploy workflow with fat jar.
- uploaded the certificate to AKV in pfx format.
- written services and ingresses.
- configured ingress and generated key + csr.
- uploaded certificate and reinstalled rabbitmq.
- created security doc.
- updated MongoDB Replica Set to Keyfile Authentication and then to x.509 Authentication.
- installed kube-prometheus-stack and Grafana-loki
- configured Loki data source and checked log viewing in Grafana.
- configured Grafana-loki persistence options.
- migrated instances from one region to another.
- configured AWS Surricata Firewall for TCP filtering.
- used coldsnap for EC2 instance backup.
- added TSDB support to bitnami/Grafana-loki chart (https://github.com/bitnami/charts/pull/22471).
- made DynamoDB and RDS backups.
- setup EKS, addons, helm charts.
- added users to admin in EKS.
- configured NLB with public static IP.
- configured ALB ingress and base uri for Grafana.
- investigated whether downtime is expected during RDS certificate update.
- developed service routing and JWT authorization based on headers in Kong Ingress Controller.
- configured logging from Java Spring Boot applications to papertrail.
- configured CICD via Github Actions.
- configured VPC with TGW, VPC Endpoints, Site-to-Site VPN via VGW, NAT and IGW.
- Configured infrastructure using Terraform and Gitlab CI/CD pipeline with a detailed guide.
- Configured ingress-nginx proxy-body-size.
- participated in configuration of LZA pipeline.
- updated RDS certificates and MySQL instances from 5.7 to 8.0.
- managed AKS cluster.
- parsed https://github.com/janiko71/aws-inventory output for different services to CSV.
- configured ServiceNow application servers with terraform and user data scripts

DevOps engineer

from 01.2019 to 12.2022 (4 years)
OpsLabs, Дистанційно (IT)

- Experience in Ruby and Logstash pipeline development and optimization.
- Development and troubleshooting of BitBucket and GitLab pipelines for CICD and configuring Docker images building.
- Deployed and configured such services as Prometheus, Grafana (developed dashboard), RabbitMQ on Kubernetes using helm.
- Troubleshot issues with Kubernetes pods.
- Configured access rights for the Kubernetes dashboard.
- Improved the aws-inventory tool written in JavaScript (https://github.com/devops-israel/aws-inventory/compare/master...pahanik:master)
- Migrated from the kibana dashboard to a newer version, upgraded skedler and alerts.
- configured Datadog.
- set up statsd + graphite and configured fluent.
- worked on the project (https://www.everything5pounds.com/) consisting of Apache proxy nodes in front of SAP Hybris cluster indexed by Apache Solr cluster, monitored with Sensu and OpsGenie and deployed with Jenkins (migrated and upgraded Jenkins) and configured Puppet on AWS EC2 instances.
- prepared to monitor for Amoeba.
- configured OpenVPN and SSH access,
- configured Slack monitoring notifications,
- worked with BI (Tableau) and PIM solutions,
- configured SFTP server and uploaded images there.
- prepared migration to SAP Hybris Cloud at Microsoft Azure (S3 sync etc.),
- managed DNS with Cloudflare.
- troubleshot DataExchange permissions.
- recovered the I3 instance after the crash with important data on instance store volume containing ElasticSearch configuration.
- configured MySQL backups and replication,
- wrote SQL queries.
- configured RDS instances.
- troubleshot Zendesk connection issues.
- configured https://monogoto.io/ hosted on AWS EC2.
- troubleshot the MQTT traffic camera configuration.
- configured WordPress Gmail SMTP.
- integrated Suricata and ntopng and upgraded Suricata.
- consulted on the NodeRed HA cluster on EC2 backed with EFS.
- configured Jenkins selectors using Git Parameter/Extended Choice Parameter plugins and Groovy scripts.
- analyzed VMware Kubernetes static IPs management possibility.
- set up and configured the logstash module for filebeat with kibana dashboards.
- configured elasticsearch ingest pipelines.
- designed the Kibana dashboard for CloudFront logs.
- configured Nginx logs sent to ELK.
- increased disk space on EC2 instances.
- investigated Nginx errors and their reasons.
- configured PM2 logs ingestion to ElasticSearch and made dashboards for them.
- integrated Sierra and OpenVPN with monogoto.
- updated Prometheus + Grafana server
- configured node_exporter and nginx Prometheus exporters
- enhanced the node-exporter dashboard.
- configured nginx metrics configuration with nginx-vts-exporter and nginx-module-vts.
- investigated Amazon Workspaces operation.
- upgraded websites from .NET Framework 4.6 to .NET Core 2.1 in Visual Studio 2017
- reconfigured CI using TeamCity and CD using Octopus.
- integrated Teamcity with Gitlab over HTTPS.
- installed mono with dependencies for Calamari (Octopus agent).

Support engineer

from 01.2012 to 11.2018 (6 years 11 months)
PortaOne, Чернігів (Телекомунікації, зв'язок)

My work experience is 6+ years of support engineering in PortaOne. I supported customers using e-mail ticketing systems and monitored their installations working for 12 hours every 60 hours. I worked both with FreeBSD and Oracle Linux. I used CentOS during training. I used RT and Jenkins for bug tracking, helpdesk and CI. I configured and monitored web servers running Apache and clusters managed by Pacemaker & Corosync. I deployed MySQL instances, configured replication between them, monitored and optimized their configuration. I also troubleshooted deadlocks and non-optimal queries. I used Nagios and custom scripts for monitoring services. I worked with Apache, Exim, Redis and Asterisk. I monitored backups and fixed some issues with backups creation. Also, I did MySQL backups manually using Percona XtraBackup. I also has experience in bash, perl, javascript and SQL (MySQL and Oracle) during development in PortaOne. I had an AWS management course and deployed EC2 instance.

Education

Чернігівський Національний Технологічний Університет

Факультет Електронних та Інформаційних Технологій, Системне Програмування, Чернігів
Higher, from 2007 to 2013 (6 years)

Чернігівська Загальноосвітня Школа з поглибленим вивченням іноземних мов №1

Чернігів
Secondary, from 1996 to 2007 (11 years)

Additional education and certificates

Build and Deploy a Generative AI solution using a RAG framework

2024, 2 months
Certificate

Google Attention Mechanism

2024, 2 months
Certificate

Conversational AI on Vertex AI and Dialogflow CX

2024, 2 months
Certificate

Text Prompt Engineering Techniques Skill Badge

2024, 2 months
Certificate

AWS Certified Machine Learning – Specialty

2022, 6 months
Certificate

Kubernetes Fundamentals (LFS258) course

2021, 4 months
Certificate

Certified Kubernetes Administrator (CKA) exam

2021, 4 months
Certificate

AWS DevOps Engineer – Professional

2021, 3 months
Certificate

AWS Certified SysOps Administrator – Associate

2020, 4 months
Certificate

ICDL Український цифровий громадянин

2026, 0 місяців
Certificate

Knowledge and skills

• MySQL
• Windows
• Linux
• Oracle Database
• СУБД
• Адміністрування
• Адміністрування серверів Linux

Language proficiencies

• Ukrainian — fluent
• English — above average
• German — beginner

References

Sam Ernstoff

Sam Ernstoff

Deloitte Israel

Disability

3rd degree.
Протипоказані фізичні та психоемоційні перенапруження