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Oleksii Vlasenko
Senior .NET Engineer | Azure | Microservices | Kubernetes | Automation Engineer
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Location: Lviv Region, Ukraine

PROFESSIONAL SUMMARY: Seasoned .NET Developer with strong expertise in C#, ASP.NET Core, REST
API development, and microservices architecture. Proven track record in designing and building cloud-
native distributed systems on Microsoft Azure, using Kubernetes, Docker, and event-driven architectures
with Kafka messaging. Skilled in CI/CD automation, infrastructure optimization, and DevOps practices.
Contributed to multiple high-traffic applications within the Sitecore ecosystem, focusing on automation,
system reliability, and developer productivity.

Transitioned from QA leadership into backend development, bringing strong expertise in testing,
automation, and DevOps practices.

TECHNOLOGY STACK:

Backend:
C#, .NET 8/6/5, ASP.NET Core, Entity Framework Core, REST APIs, Microservices

Cloud & Containers:
Microsoft Azure, Azure Functions, Kubernetes, AKS, Docker

Messaging:
Kafka

DevOps:
Terraform, GitHub Actions, Bitbucket Pipelines, CI/CD

Languages:
SQL, Bash, PowerShell

Storage:
MS SQL, Storage Account, Mongo, Redis, Consul, KeyVault, PostgreSql

EXPERIENCE:

• Senior Software Engineer – Sitecore Ukraine, Oct 2021 – Present

• Developed and maintained Sitecore CMS components for content hub, media asset
processing, and campaign configuration, supporting enterprise-level digital solutions

• Automated CloudOps workflows across multiple internal services, reducing manual
operations and improving deployment reliability.

• Developed Bash and PowerShell automation scripts for Kubernetes resource management
and infrastructure operations.
 • Designed and implemented RESTful APIs supporting internal automation services.

• Optimized Azure and Elastic infrastructure costs by 20% through resource utilization analysis
and plan optimization.

• Integrated Backstage.io (TypeScript, PostgreSQL) for internal developer portal, improving
engineering workflows and visibility between product teams.

• Designed and implemented CI/CD pipelines (GitHub Actions, Bamboo, Bitbucket), reducing
manual QA effort by 50% and accelerating release cycles.

• Analyzed and remediated security issues identified by Veracode and Prisma scans.

• Investigated and resolved complex customers issues, performing root cause analysis,
debugging, and performance

• Lead AQA Engineer – Sitecore Ukraine, Mar 2015 – Sep 2021

• Led a team of 2–3 AQA engineers; defined test strategies and automation scope for new
features.

• Developed and maintained automated test suites for data-provider and business-layer .NET
projects.

• Performed performance testing and incident management using Jira, improving release
stability.

• Reviewed code and collaborated with developers on CI/CD and DevOps tasks.

• QA Group Lead – Luxoft Ukraine, Oct 2010 – Mar 2015

• Led test planning for a major fintech banking client, defining test strategies, scope, and
execution approach for implemented systems

• Managed QA for banking projects: designed test cases, performed manual and automated
testing.

• Conducted manual backend testing for loan-risk and Big Data projects (SQL-based), reducing
critical bugs.

• Coordinated regression testing and participated in requirement analysis.

• QC Specialist – ISD, Oct 2008 – Oct 2010

• Tested medical software projects; documented defects and test results.

EDUCATION:
Master degree of Computer Science, Dnipro National University

CERTIFICATIONS:

• ISTQB Foundation Level (Software Testing)

• ISTQB Advanced Level – Test Management