Senior Full-stack Developer (ASP.NET, React) (вакансія неактивна)

Fully remote role, full-time, Ukraine only.

Employer: Leading US-based provider of managed cloud infrastructure services (DevOps, cybersecurity) for investment firms and hedge funds, founded in 2016.

We are looking for a senior full-stack Software Developer (ASP.NET Core WebAPI, C#, React, MS SQL Server, Azure) to join a growing team of cloud/DevOps experts. The role’s focus is on developing a modern, secure, robust internal web portal used in-house by engineers, and also by company clients, to manage configurations, deployments, track metrics, access reports, make requests, launch workflows, and more.

This role involves significant technical ownership of the project — as this will be the first senior in-house web software developer (most of the team focuses on cloud). You will collaborate closely with the business analyst, the QA, DevOps engineers, and a few other developers as part of a distributed agile team. Tasks include developing new features, writing clean, secure, maintainable code, optimising existing features and performance, implementing secure cookies, authentication, caching, managing releases, testing, all for the internal company webapp.

If you value ownership, growth, and a professional yet friendly environment, and have extensive expertise in developing modern large-scale web applications on the ASP.NET Core stack, apply now!

Key Requirements:

• Strong spoken English — Upper-intermediate / B2+
• 6+ years of full-stack web development experience with ASP.NET (Core/WebAPI, C#, React/React.js, MS SQL Server), writing clean, secure, scalable, maintainable code
• Experience with Azure services and deployment (Azure Functions, App Service, DevOps)
• Extensive knowledge of architecture patterns, experience with microservices
• Strong understanding of clean architecture, REST API, SOLID principles
• Experience with unit and integration testing

Offer:

• Fully remote role, competitive salary, direct long-term contract with a US company
• Growth potential as a team lead
• Opportunity to technically own the web development direction in the company
• Company equipment provided for work
• Annual bonus of up to 10% of yearly salary, yearly salary reviews
• 20 days of PTO yearly + local public holidays
• B2B set-up via SP (FOP in $USD)
• Schedule: flexible 10:00-19:00 Kyiv time

Process:

• 20min screening → 25min online assessment → 1.5hrs full interview with the hiring manager
• Final steps: Offer call → background & reference check