.NET Developer
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Job Description
.NET Developer evolving Kyivstar.Tech’s internal corporate HR system. Building integrations, troubleshooting legacy systems, and migrating to modern .NET technologies.
Responsibilities:
- Develop and enhance functionality of an internal corporate HR system.
- Analyze and safely modify existing legacy .NET code, XML configurations, XSLT transformations, and generated components.
- Investigate existing subsystems and reconstruct their logic based on code, data structures, and system behavior.
- Clarify requirements with business stakeholders and translate business needs into technical solutions, specifications, and development tasks.
- Develop algorithms, modules, and integrations with internal corporate systems and external services.
- Work with SQL databases, ORM, SSRS, IIS, and related infrastructure components.
- Diagnose issues across the application, IIS, database, integrations, Office, and operating system.
- Contribute to modernization of the legacy system and migration to a modern .NET stack.
- Create technical documentation and provide guidance to users, developers, and administrators when needed.
Requirements:
- 2+ years of commercial experience developing enterprise solutions with C# and .NET Framework.
- Strong understanding of OOP, design patterns, and separation of responsibilities.
- Hands-on experience working with legacy .NET Framework code and older approaches and APIs.
- Ability to read, analyze, and safely modify unfamiliar legacy code.
- Practical experience with ASP.NET Web Forms and understanding of the web application lifecycle.
- Strong SQL skills and understanding of relational databases, indexes, transactions, and query optimization.
- Practical experience with XML, XSD, XML validation, and XSLT.
- Understanding of ORM principles and experience with NHibernate, Entity Framework, or similar technology.
- Experience with Microsoft IIS and troubleshooting ASP.NET application deployment and runtime issues.
- Experience integrating systems via REST API, SOAP, or web services; understanding of HTTP, authorization, data formats, TLS, and certificates.
- Experience with Git, basic MSBuild, CI/CD, and the software development lifecycle.
- Experience with Jira and Confluence and ability to document technical solutions and changes.
- Ability to clarify requirements with business stakeholders and translate business needs into technical tasks.
- Strong communication skills and ability to collaborate with developers, administrators, analysts, and business stakeholders.
- Higher technical education, preferably in Computer Science, Software Engineering, or IT.
Benefits:
- Office or remote — it's up to you.
- Remote onboarding.
- Performance bonuses for everyone (annual or quarterly — depends on the role).
- Opportunity to learn through the company’s own library, internal resources and programs from partners.
- Health and life insurance.
- Wellbeing program and corporate psychologist.
- Reimbursement of expenses for Kyivstar mobile communication.
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