Senior Full Stack .NET (with JS) Developer

We are looking for a Senior Full Stack .NET Developer (with strong JavaScript experience) to join our team full-time and contribute to long-term, stable projects for a U.S.-based nonprofit organization.

About the client and project:

The client is based in the United States (Chicago) and has been working with our company for many years. Our team is developing a group of websites for one of the client’s departments, all built within a multisite system on Umbraco CMS.

A developer may work on several projects at the same time inside this multisite environment.

Meetings with the client may happen occasionally, but never later than 20:00 Kyiv time, and only in rare cases.

Technologies:

Projects are based on Umbraco CMS with Front-end development on React (Next.js), Azure infrastructure.

Team structure:

2 BAs, 4 QAs, 1 UI/UX Designer, 4 Full-stack developers, 1 Front-end developer, 1 DevOps, 1 PM

Requirements:

Must have:

• 5+ years of experience with .NET/C# . Solid background in the .NET ecosystem, including C#, ASP.NET MVC, and related frameworks.
• 3+ years of experience with JavaScript/TypeScript, HTML, CSS (including preprocessors like SASS/LESS).
• Experience and understanding of Git and GitHub
• Hands-on experience with relational databases (SQL)
• Experience with UI/UX principles and responsive design.
• English level — Intermediate/Upper-intermediate, both written and conversational enough for day-to-day communications with customer

Nice to have:

• CMS Umbraco Expertise: Proven experience developing and maintaining websites on Umbraco CMS. Should understand best practices for architecture, customization, and performance optimization within Umbraco.
• Familiarity with Azure Cloud
• Familiarity with modern front‐end frameworks (e.g., React, Vue) is a plus
• DevOps Fundamentals: Experience with CI/CD pipelines, version control (Git), and cloud services (Azure, AWS, or similar). Ability to set up and maintain build environments and automated deployment workflows.
• Security & Performance: Understand common security vulnerabilities and performance considerations, especially when deploying and scaling Umbraco solutions

Responsibilities:

• Develop custom components for projects using Umbraco CMS.
• Build websites inside a multisite system on Umbraco.
• Participate in code reviews.
• Write and update technical documentation in English for the components you create.
• Troubleshoot issues, fix bugs, and proactively improve the system.

Selection and approval stages:

• HR pre-selection and English testing
• Meeting with PM, Tech Leads
• Meeting with Account manager (maybe)

What’s in it for you:

• Professional development and growth opportunities
• Competitive compensation
• Flexible work schedule
• Coverage for professional training and certifications
• 20 paid vacation days + 12 paid sick leaves
• Medical insurance
• Additional corporate benefits

About company:

SOLVVE is a US & Ukrainian Outsourcing & Outstaffing company with offices in the US, Florida and Dev.Center in Ukraine. Our main priority is to provide high-quality services. Our extensive background in software development helps our partners from the USA, Europe and Middle East to implement the most complicated projects. In our job we use cutting-edge technologies allowing our specialists to grow professionally day by day. Expertise: Healthcare, Biometric, Education, Social networks.

You can follow SOLVVE’s life here:

Web-site: solvve.com

Facebook: www.facebook.com/solvvesoftware

Instagram: www.instagram.com/solvvesoftware

Our company has many advantages, but about them you will know after sending your CV.

Good luck!