diomid sukhodolskii

Duties: ● Deployments: automating the rollout of company applications on Chef / Ansible ● Automation: writing scripts (in Python, Shell) to automate support for test benches and tasks related to orchestration and release management. ● Ensuring platform reliability: architecture, development and support of docker-based infrastructure. ● Continuous Integration (CI): support and development processes Continuous Integration / Continuous Delivery (Chef / Ansible). ● Software Development Lifecycle Process (SDLC): the development and improvement of SDLC processes in a company. ● Cloud computing: the transfer of company applications to Amazon Cloud (AWS) and Heroku: architecture, deployment, support. ● DevOps culture: developing and improving DevOps processes in a company. ● Linux / Windows system administration: maintaining the working state and solving problems on test / production stands ● Production support: this position implies calling work to solve urgent and business-critical production problems during off-hours.

* Design and deploy architecture for distributed Antifraud SaaS platform developed in-house. * Initial stage was targeted at bare-metal deployment on dedicated severs in Hetzner AG. * We used Apache Mesos as a foundation, and build various components in it. Included, but not limited to: * Data pipeline: Stream processing with Apache Kafka, HDFS * Machine learning pipeline * Distributed application architecture using Mesos, Docker, Kubernetes. * Nowdays using AWS services: * EC2 * ECR * S3 * DynamoDB * Kinesis * Lambda * VPC * Route53 * In our SaaS we heavily using Docker for packaging different components. That leads to the need of Docker orchestration. * At various stages we used several technologies form Docker ecosystem: * Orchestration: Swarm, Kubernetes, Mesos, etcd. * Networking: Weave, Flannel, Native (since docker 1.10) * Volume plugins: Rexray, Flocker

* Other work is about architecture of Payment Processing Platform Company. * I’m create all infrastructure from 0. * We using virtual servers in Digitial Ocean, dedicated servers in Hetzner, cloud infrastructure in AWS. All services and servers have different failover systems, security systems e.t.c. * We are using: * mongoDB shared replicaset as database * collectd, telegraf, graphite, ELK for collecting metrics and logs, alerting * ofc ansible scripts for deployment infrastructure things and setup servers * gitlab, gitlab ci for auto deployment software from buildserver * zimbra as main mail service * confluence server * jira server * backups in AWS S3 * Let's Encrypt with acmetool for auto renewal certs * nginx as main front * CloudFlare as Ddos protection and failover

Мониторинг работы высоконагруженных Linux серверов. Самостоятельное исправление мелких ошибок и оповещение ответственных за сервер при серьезных авариях.

Activities and Societies: Научная работа в области обеспечения информационной безопасности профессиональной транкинговой сети связи Tetra. ЭЛЕКТРОСВЯЗЬ № 2, 2014