Senior Full Stack .NET Engineer

UpSkill is a recruitment agency ready to go the extra mile to help candidates find the best possible job opportunity. Our team of experts is well-versed and experienced in consulting and providing long-term HR support.

We believe that being friendly is the best policy, and thats why we are eager to help you through the whole lifecycle of recruitment. Our team comes with 15 years of recruitment experience behind its back. At any given moment, we can offer multiple opportunities from different companies in need of a wide variety of talent.

If you are interested in starting a new job, we will present you with multiple opportunities, will be there to answer all your questions, help you prepare for interviews and tests, provide essential feedback and even guide and support you through the process of recruitment up to the first day at your new job. We support both large international and local companies in growing their business, providing them with the best talent to help them succeed!

Our current client is an US end-to-end business software solution provider that helps its clients streamline operations, maintain compliance, and grow their businesses. The company has a newly established business entity in Bulgaria. On their behalf, we are currently looking for a Senior Full Stack .Net Engineer on a fully remote model of work. If you are curious about this exciting opportunity, then this might be the chance you have been waiting for!

Responsibilities:

• Design & Develop:Architect and implement new features from wireframes and design specifications through deployment.
• Collaborate with cross-functional teams to define requirements and deliver robust, scalable software solutions.
• Maintain & Enhance Legacy Platforms:Support and optimize our existing Core platform built on AngularJS and ASP.NET, ensuring performance, reliability, and a gradual transition to new technologies where feasible.
• Contribute to technical decisions around refactoring, monitoring, and reducing technical debt.
• NextGen Development:Work on our NextGen platform using .NET Core and modern JavaScript frameworks (React, NextJS, Vite).
• Design, build, and optimize APIs and microservices to handle complex business logic and integrations with third-party systems.
• Collaboration & Leadership:Contribute to continuous improvement of coding standards, testing strategies, and deployment processes.
• Reliability & Scalability:Deliver highly available services used by hundreds of businesses 24/7.
• Troubleshoot and resolve production issues, ensuring minimal downtime and solid reliability.
• Remote Team Coordination:Actively participate in daily standups, ad hoc video calls, and Slack discussions to maintain alignment.
• Ensure overcommunication in a remote environment to keep stakeholders informed and engaged.

Qualifications:

• Experience: 5–10 years working on backend applications with ASP.NET/.NET Core.
• 2+ years working on frontend applications with JavaScript frameworks (preferably AngularJS, React, or similar).
• Technical Expertise:Deep familiarity with C#, ASP.NET, and .NET Core.
• Proficiency in JavaScript and one or more modern frameworks (AngularJS, React, etc.).
• Solid understanding of SQL databases and data modeling, specifically SQL Sever and Entity Frame and
• Bonus points for experience with Node.js, microservices, or containerization (Docker).
• Soft Skills & Mindset:Ability to operate in a fast-paced startup environment, wearing multiple hats to drive business value.
• Proven dedication to creating maintainable, scalable, and reliable systems.
• Strong analytical and problem-solving skills, with a knack for troubleshooting complex issues.
• Exceptional English communication skills (both spoken and written).
• Ability to work at least 6 hours overlapping with US Central Time.
• Additional Requirements:Ability to pass a background check; have appropriate work authorization.

The company offers:

• Excellent salary and benefits package;
• Professional Growth: Opportunities to expand your expertise across different platforms, tools, and technologies.
• Remote-First Culture: The company value work-life balance, autonomy, and open communication.
• Impact & Ownership: Work in a small, dynamic team where your contributions directly shape our products and customer experience.
• Collaborative Environment: Join a culture that values curiosity, honesty, collaboration, grit, and accountability.

We welcome the opportunity to learn more about you!

Please send your CV in English.

Please note that only short-listed candidates will be contacted.

License No.2826. We will treat your application with full confidentiality!