Middle Full-Stack Developer

Kyivstar; Ohio; Remote; USD 80,000 - 120,000; Full time

Job summary

A leading IT company is seeking a Middle Full-Stack Developer (.Net + Angular) to analyze, develop, and maintain applications. This role involves designing solutions, mentoring team members, and ensuring code quality. Enjoy flexibility with office or remote work options, performance bonuses, and a comprehensive wellbeing program.

Benefits

Performance bonuses

Health and life insurance

Wellbeing program and corporate psychologist

Remote onboarding

Reimbursement of expenses for mobile communication

Qualifications

• Advanced programming experience in C# (minimum 3+ years).
• Experience with .NET Framework and .NET Core (preferably .NET 6+).
• Advanced knowledge of JavaScript, HTML, and CSS.

Responsibilities

• Analyzing, developing, optimizing, and maintaining applications on low-code platform Creatio.
• Conducting code reviews and providing technical support to Junior and Middle developers.
• Integrating applications with external systems via REST/SOAP APIs.

Skills

C#

JavaScript

HTML

CSS

OOP principles

LINQ

Entity Framework

Asynchronous programming

Job description

We are looking for a Middle Full-Stack Developer (.Net + Angular)

About us:

Kyivstar.Tech is a Ukrainian hybrid IT company and a resident of Diia.City.

We are a subsidiary of Kyivstar, one of Ukraine’s largest telecom operators.

Our mission is to change lives in Ukraine and around the world by creating technological solutions and products that unleash the potential of businesses and meet users’ needs.

Over 500+ KS.Tech specialists work daily in various areas: mobile and web solutions, as well as design, development, support, and technical maintenance of high-performance systems and services.

We believe in innovations that truly bring quality changes and constantly challenge conventional approaches and solutions. Each of us is an adherent of entrepreneurial culture, which allows us never to stop, to evolve, and to create something new.

What you will do

• Analyzing, developing, optimizing, and maintaining applications on low-code platform Creatio.
• Designing architectural solutions, ensuring scalability, fault tolerance, and compliance with security standards.
• Creating and updating technical documentation.
• Conducting code reviews and providing technical support to Junior and Middle developers; mentoring team members.
• Participating in internal development team activities (Daily Standups, Sprint Reviews, Retrospectives, etc.).
• Integrating applications with external systems via REST/SOAP APIs, databases, and other interfaces.
• Taking part in sprint planning, task estimation, and continuous improvement of development processes.
• Ensuring high code quality, automating testing, and contributing to CI/CD processes.
• Investigating and resolving incidents and defects, including tasks at the third level of technical support.
• Restoring software functionality after failures.
• Analyzing and optimizing application performance.
• Organizing and improving internal development workflows, including setting up and supporting development/testing environments (dev/stage), and automating releases and deployments.
• Evaluating and enhancing applications based on technical specifications and customer requirements.
• Providing expert support to business units during application development.
• Maintaining regular code publication in GitLab and/or to dev/test/prod environments according to company policy.
• Managing the Jira task board, monitoring task statuses, and meeting deadlines according to the defined lead time and SLA.
• Delivering training on low-code tools in the internal programming school.

Qualifications and experience needed

• Advanced programming experience in C# (minimum 3+ years).
• Experience with .NET Framework and .NET Core (preferably .NET 6+), particularly:

· OOP principles

· Dependency injection

· LINQ

· Entity Framework / ADO.NET

· Asynchronous programming (async/await)

• Experience of developing and integrating custom Creatio packages using C# is a plus.
• Advanced knowledge of JavaScript, HTML, and CSS.
• Experience with MS SQL Server or PostgreSQL.
• Experience with TypeScript or Angular for advanced UI development is a plus.
• Experience working with web services (REST, SOAP).
• Familiarity with CI/CD pipelines and deployment automation for Creatio custom packages is a plus.

What we offer

• Office or remote — it's up to you. You can work from anywhere, and we will arrange your workplace
• Remote onboarding
• Performance bonuses for everyone (annual or quarterly — depends on the role)
• We train employees: the 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