HotSchedules Corporate - Bulgaria, Sofia

Fourth is seeking a Junior/Mid Data Scientist in Sofia, Bulgaria to build data-powered solutions for demand and labor prediction. You will develop end-to-end ML models using Python, PyTorch, and scikit-learn, with a focus on time series forecasting and A/B testing. The role offers hybrid work, 25...

QA Engineer needed for a high-impact POS Unification team in Sofia, Bulgaria. You will build a standardized integration layer, combining manual and automated testing (C#, Selenium, SpecFlow) with AI-assisted development tools. Enjoy 25+ days off, hybrid work, and supplemental health insurance. Dr...

Seeking a Software Delivery Manager in Sofia, Bulgaria to lead end-to-end delivery of high-quality software products. This technical leadership role requires proven experience as an Engineering Manager, strong system design skills, and expertise in Agile SDLC. You will drive engineering effective...

Senior .NET Developer sought for Scheduling solutions in Sofia, Bulgaria. Requires 5+ years in C#, ASP.NET, SQL, and 3+ years in Angular. Leverage AI-assisted development tools like GitHub Copilot. Enjoy 25+ days off, hybrid work, and supplemental health insurance. Join an Agile team building rea...

Fourth seeks a Mid/Senior .Net Developer in Sofia, Bulgaria. You will develop software applications, handle new features, bug fixes, and UI simplification using C#, ASP.Net, SQL, and Angular. The role requires 3+ years of experience, strong AI skills, and fluency in English. Enjoy 25+ days off, h...

Join Fourth as a Junior/Regular .NET Developer in Sofia. Develop and maintain our Scheduling solution for UK hospitality using C#, ASP.NET, and SQL. Enjoy a hybrid work model, 25+ days off, and a supportive team environment. This is a 1-2 year maternity cover position.

Lead AI engineering for enterprise solutions at Fourth in Sofia. Design and deploy scalable, production-grade AI systems, including LLMs and RAG architectures. Requires 5+ years of Python and production ML/AI experience. Enjoy flexible hybrid work, 25+ days off, and health benefits.

Join our Agile team in Sofia as a .NET Developer. Utilize your 3+ years with C#, ASP.NET, SQL, and Angular to design, develop, and test high-quality solutions. Enjoy a hybrid work model, 25+ days off, and a team-focused environment that values clean code and innovation. Strong AI skills are a wel...

Join a Sofia-based team as a Senior/Principal .NET Developer. Leverage your deep expertise in .NET 9, Azure, and modern patterns like CQRS to build robust solutions. Enjoy a hybrid model, 25+ days off, and a supportive culture focused on work-life balance and engineering excellence.

Join Fourth as a Senior .NET Developer in Sofia. Design, develop, and unit test high-quality software solutions using C#, ASP.NET, and Angular. Enjoy a hybrid model, 25+ days off, and a team-centric culture. Strong AI skills are a valuable plus for this role.