Profilbild von Roman Sereda DevOps, Cloud architect aus Berlin

Roman Sereda

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Letztes Update: 22.01.2024

DevOps, Cloud architect

Firma: Roman Sereda
Abschluss: Bachelor of Electronics
Stunden-/Tagessatz: anzeigen
Sprachkenntnisse: deutsch (verhandlungssicher) | englisch (verhandlungssicher) | ukrainisch (Muttersprache)

Skills

AWS, Google Cloud, Azure, Kubernetes, Infrastructure-As-a-Code, Terraform, bare-metal,  DevOps,  GitLab,  Ansible, Python, Golang, CAD, rendering, API, data processing, JIRA, Single Sign-On, PostgreSQL, video streaming, telecommunication, Nagios, Zabbix, Prometheous, Elastic-Search, Kibana,


Planing and developing Infrastructure for application
Codiing InfractructureAsACode , REST API, tools
Automation anything and anywhere
Cybersecure for any gran
Build as simple as posible

Projekthistorie

07/2022 - 12/2022
Senior Devops
SevenSenders GmbH (Transport und Logistik, 50-250 Mitarbeiter)

I help the infrastructure team to transform himself to get
the possibility to support all infrastructure tasks and complete
infrastructure migration. Also, I have refactored the same
components of infrastructure like terraform modules and helm
charts for fixing critical problems. I design and implement
infrastructure support plans with maintenance events and
scheduling of change.
Multi account AWS cloud, ArgoCD, helm, Terraform, Kubernetes,
Docker, Java, Spring-framework, Kafka, MongoDB, Mysql.

08/2021 - 06/2022
Site Reliability Engineer
Ionos GmbH (Internet und Informationstechnologie, >10.000 Mitarbeiter)

The main activity of the project was related to refactoring infrastructure as a code for a set of applications. Key features were implemented in project gitops deployment with ArgoCD as the main orchestration tool. Projects include multi-cluster and multi-data-center and multi-regional decentralization concepts that realize high availability, high readability, and observability.

Kubernetes, terraform, Helm, ArgoCD, Traefik, Gitlab CI-CD, Github action, Docker, Java, microservice architecture.


11/2020 - 07/2021
DevOps
SevenSenders GmbH (Transport und Logistik, 250-500 Mitarbeiter)

I have rebuilt and migrated complex legacy multi-account AWS
cloud infrastructure with a set of different development
patterns to single and reliable infrastructure on top of AWS
cloud. We have described all infrastructure resources in
Terraform, Helm, and Docker declarative Infrastructure as a
code. Together with Infrastructure, we rebuild development
workflow to get fully autonomic continuous integration and
continuous deployment process. We have to implement GitOps
with ArgoCD and Gitlab-CI for infrastructure and application
automatic delivery. I have a delivery large impact on hardening
corporate security, data flow, and data processing. This
improvement
decreases
the
complexity
of
existing
infrastructure and as a result cost of ownership. In parallel, I
have work with the Corporate DataLake project that have got
concrete specification and development sprint. Kafka, AWS
Glue, MongoDB, and Snowflake will be the main components for
this ambition Data lake project.
Multi account AWS cloud, Terraform, Cloudformation,
Kubernetes, Docker, Spring-framework, Kafka, MongoDB, Mysql,

06/2017 - 09/2020
Development and IT Operations Engineer
McMakler GmbH

I have realized a deep transformation project, from bare-metal
monolithic application and primitive developer workflows, to
multi-cloud micro services infrastructure with fully automatic
infrastructure provisioning, builds, testing and deployments
from repository to production. For getting these results I have
built Infrastructure as a Code, trained DevOps Team in an Agile
workflow, secured policies and access rules and developed
several micro service applications. I have used GitLab,
Terraform, Kubernetes, Ansible, Python and Golang and some
other tools for implementing so big of a challenge.

01/2017 - 06/2017
DevOps, automotive
Rocket Data International GmbH

Main challenge was development and building infrastructure for
3D CAD rendering API application. In parallel, I have realized
several projects in data processing and developer process
workflows for several business departments of our customers. I
have realized business process management workflow with
JIRA, and Confluent collaboration with integration to several
corporate directory services, Single Sign-On and 2FA.

10/2016 - 01/2017
DevOps
Kiron Open Higher Education gGmbH; Edu-tech remote

I have created infrastructure and CI-CD pipeline for Edu-tech
application on AWS, based on Kubernetes, Bamboo and other
Atlasian tools for implementing best practices and Agile
methodologies into development and business processes.
Infrastructure and workflow setup for data flow analysis based
at R-studio and PostgreSQL software stack.

10/2014 - 10/2016
DevOps
Skeegleapp

I have created proof of concept for live and on-demand
streaming service. Infrastructure as a code for application build
and deployment of streaming services. I have also built media
transformation application, that converts video files to
acceptable streaming format. I have developed DRM content
protection system and integrated this DRM system to all
components of the application.

01/2011 - 04/2014
DevOps
Upwork - Odesk

I have completed over 100 project for three year. Most of
project was related to creating prof of concept and protecting
different information system. Same project was codding job
around automation process and delivery configuration or data
or infrastructure. Same project was related to video streaming
system.

06/2007 - 12/2010
IT regional project manager
Alfa-Bank JSC

I have managed 40 IT projects to create new banks regional
branches. Each project was expect from me planing new IT
infrastructure, delivery and installation all IT stuff and
organization work experience for all corporate users in regional
branches. And I have deep impact to create support and help
desk teams. In Parallel I have transformed corporate software
delivery and usage from bare metal on dedicate run-time to
virtual terminal desktop experience.

02/2005 - 06/2007
IT support manager
Alfa-Bank JSC

I have managed all IT processes at big corporate office over
30000 m2 from initial building construction phase till
organization work experience and support help desk team for
all 5000 users. I made deep impact to creation new data
center inside this corporate office. I have cowered all question
and communication with external supplier for networks , server
room building for 150 racks, power and cooling supple for
150kWt.

09/2004 - 02/2005
Sales manager
BestPower GmbH

I have managed sales and project with uninterrupted power
supply for various customer. I have completed same large
project for telecommunication and financial and government
fields. In my project I have resolved problem of my customer
with non stable electric supply, control and monitoring
management electric power supply. Also I have managed
project for integration monitoring solution of hardware to
modern monitoring system like Nagios and Zabbix.

01/2003 - 09/2004
Support engineer, telecom
Priocom gmbH

I was part of support team that serve all issue around fiber
optic data telecommunication network and voice delivery
network.

01/2001 - 08/2004
System administrator
NTT Energy gmbH

I have build and support corporate IT infrastructure. This
network has three offices connected at one single network with
modern desktop and user experiences. In parallel, I had
developed monitoring and data collection solution from various
power supple device and network and integrated this data flow
to existing monitoring system.

Reisebereitschaft

Weltweit verfügbar
Berlin und Umgebung, Geschäftsreisen sind möglich und wünschenswert
Profilbild von Roman Sereda DevOps, Cloud architect aus Berlin DevOps, Cloud architect
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