Олег

Haevskyi Oleh
Tech-Lead Software Engineer

Summary of
Qualifications Experienced Software Engineer with over 9 years of proven expertise in the IT industry.
Throughout my career, I have successfully contributed to projects spanning various
technology stacks, both on the frontend and backend.

Education:

Yuriy Fedkovych Chernivtsi National University. Math&Informatic, Master's diploma.

Private Higher Education Establishment “European University”. Management, Master's
diploma.

Skills
Programming Languages/ Technologies Frameworks / Libraries
▪ Kubernetes ▪ Entity Framework
▪ Azure Service Bus ▪ .NET 5+/.Net Core 1/2/3
▪ Azure DevOps ▪ Bootstrap
▪ ServiceFabric ▪ ADO.NET
▪ Redis ▪ ASP.NET MVC
▪ WCF ▪ ASP.NET WebForms
▪ Bootstrap ▪ Jquery
▪ Web API 2 ▪ Angular 2/4/6
▪ RabbitMQ ▪ TypeScript
▪ Xamarin
▪ Google Pub/Sub Testing Tools
▪ DataDog
▪ Back-end and Front-end Unit Test
▪ Coralogix
▪ Junit
▪ Debezium
▪ Nunit
▪ Grafana
▪ Moq
▪ LauchDarkly
▪ Selenium Test
▪ Liquid
▪ SOAP
Application/Web Servers
▪ IIS
Cloud ▪ Apache
▪ AWS ▪ Docker
▪ Azure
▪ GCP Methodologies
▪ Agile, SCRUM
RDBMS
▪ Kanban
▪ MS SQL Server ▪ Waterfall
▪ MySQL
▪ SQLite Hardware
▪ Oracle
▪ Network technologies
▪ Different technological device
 Haievskyi Oleh
Tech-Lead Software Engineer

NoSQL
▪ MongoDB
▪ Cosmos DB
▪ Couchbase

Development Tools
▪ Visual Studio
▪ SQL Management Studio
▪ SmartGIT
▪ Azure DevOps

Operating Systems
▪ Microsoft Windows XP/7/8/10
▪ Ubuntu
▪ MacOS

Experience
Global-E Software Products Platform
Project Description: Global-e simplifies global e-commerce, removing barriers between merchants and
consumers, creating a seamless local experience for online buyers and sellers anywhere in the
world.

The chosen partner of brands and retailers across the USA, Europe and Asia, Global-e sets the
standard of global e-commerce.

Customer: https://www.global-e.com/about/
Involvement Duration: 2 years
Project Role: Tech-Lead Software Engineer
Responsibilities: ▪ Developing
▪ Bug fixing
▪ Developing Client side view logic
▪ Developing server side logic
▪ Unit tests
▪ Estimating
▪ Creating multilayered applications
▪ Creating architecture
decision-making
Project Team Size: 15 team members
Tools & Technologies: .NET 6+, .NET Fraemwork, JS, NoSQL, Debizium, ES, EF, AWS, LaunchDarkly, Liquid, GraphQL,
Grafana, OpenTelemetry, Coralogix, T-SQL, React/Angular/Vue, Couchbase, RabbitMQ, Azure
Project Description: The banking system offers better, simpler, more affordable ways to take control of
your money.

Customer: Questrade is an online brokerage firm and wealth management firm based in Canada.
It is Canada's largest discount broker. https://www.questrade.com/about-us
Involvement Duration: 3 years

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 Haievskyi Oleh
Tech-Lead Software Engineer

Project Role: Senior Software Engineer/Tech Lead
Responsibilities:
▪ Developing server-side logic (.NET Core, .NET +5, WEB API 2, GCP)
▪ Integration/Unit tests
▪ Estimating
▪ Optimizing
▪ Development of new features
▪ Development of tech design/solutions
▪ Refactoring
Project Team Size: 10 members
Tools & Technologies: C# 8, Web API 2, .NET CORE 3.2, MongoDB, EF Core, LINQ, GCP, Micro-service Architecture,
Docker, Jenkins, NodeJs, Angular 8, DDD
Project Description: Telecommunication services in many countries worldwide, using the mobile virtual
network operator business model. (02.2020 - 08.2021)

Customer: Lebara is a British telecommunications company providing services in many countries
around the world, using the mobile virtual network operator business model.
Lebara Mobile provides pay-as-you-go and contract-based mobile SIM cards.
Involvement Duration: 1.5 year
Project Role: Senior/Lead Software Engineer
Responsibilities: ▪ Code migration
▪ Developing server-side logic(.NET CORE 2.2/3.0, WEB API 2, K8S)
▪ Integration/Unit tests
▪ Estimating
▪ Optimizing
▪ Development of new features
▪ Development of tech design/solutions
▪ Refactoring
▪
Project Team Size: 15 members
Tools & Technologies: C# 7, Web API 2, .NET CORE 2.2, MS SQL, EF Core, LINQ, Azure DevOps, Azure Cloud, Azure
Service Bus, Micro-service Architecture, Service Fabric, Azure Storage, K8S, Docker
Manage advanced technology intelligence system
Project Description: HealthCare project for analysis and providing fast and quality health plan for the user.
More https://www.oncologyanalytics.com/

Customer: Oncology Analytics
Involvement Duration: 3 years
Project Role: Senior Software Engineer
Responsibilities: ▪ Bug fixing
▪ Developing server side logic(.NET CORE 2.0, WEB API 2)
▪ Integration/Unit tests
▪ Estimating
▪ Optimizing
▪ Development of new features
▪ Development of tech design/solutions
▪ Stored procedure optimizing
▪ Mentoring
▪ Refactoring
▪

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 Haievskyi Oleh
Tech-Lead Software Engineer

Project Team Size: 8 members
Tools & Technologies: C# 7, ASP.NET, MVC, Web API 2,.NET CORE 2.0, MS SQL, Entity framework Core, LINQ, Azure
DevOps, Azure Cloud, Azure Functions, AngularJS, Angular7

Employee Survey Service
Customer: Ubisoft
Involvement Duration: 6 months
Project Role: Software Engineer
Responsibilities: ▪ Bug fixing
▪ Developing Client side view logic (Angular 6)
▪ Developing server side logic(.NET CORE 2.0, WEB API 2)
▪ Unit tests
▪ Estimating
▪ decision-making
▪ Optimizing
▪ Development of new features
Project Team Size: 4 members
Tools & Technologies: C# 7, ASP.NET, MVC, Web API 2,.NET CORE 2.0, MS SQL, Entity framework, LINQ, RabbitMQ, ,
Angular 4, HTML, CSS, TFS, JIRA
HomeAway, Property Rental Management Services
Project Description: Web sites, Web API, microservices & front-end modules used via web front-end UI
and web API end-points by property managers to support back-office property rental
processes (reservations, bookings, maintenance, accounting, correspondence,
reports, etc.)

Customer: Expedia
Involvement Duration: 1.5 years
Project Role: Software Engineer
Responsibilities: ▪ Developing wide range of products (websites, web API, modules), full-stack
development on all layers – from database to UI
▪ Integration with internal and external APIs/services
▪ Problem-solving/performance tuning/bug fixing for the existing products and
features
▪ Functional and integration testing
Unit testing
Project Team Size: 14 members
Tools & Technologies: C#, ASP.NET, MVC, Webforms, Web API, MS SQL, Entity framework, LINQ, SSRS reports,
RabbitMQ, MongoDB, Docker, JavaScript, JQuery, Knockout JS, HTML, CSS, Git, JIRA

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