ENTERSOFTONE - Redefining Business Software in an AI-powered Future

Established in 2025 through the strategic merger of Entersoft and SOFTONE, ENTERSOFTONE is a leading business software vendor in SE Europe with more than 1,500 employees and an extensive network of 700+ specialized partners, effectively serving a growing customer base of 90,000+ businesses across four countries (Greece, Cyprus, Bulgaria, and Romania).Driven by a strong vision, long-term strategy, and deep expertise, ENTERSOFTONE bridges the gap between cutting-edge innovation and real business challenges, delivering reliable, intuitive, and scalable solutions for sustainable growth. Utilizing Cloud, Web, and AI technologies, we offer a comprehensive product portfolio (ERP, CRM, HCM/Payroll, WMS, Accounting, e-Invoicing, Digital Commerce, mobile applications and industry-specific solutions) that empowers every business, enabling it to work smarter, faster, and more successfully.

At ENTERSOFTONE, we turn innovation into real business value - unlocking the full potential of enterprises in today’s fast-changing digital era.

We are looking for a Backend AI Engineer to join our high caliber team.

Your Role

We are looking for a talented Mid to Senior Backend AI Engineer to join our innovative team in developing our cutting-edge AI platform. This role is central to building the infrastructure and services that power our AI-driven solutions.

Your contribution to the success of the team

• Design, develop, and maintain backend services and APIs for our AI platform using C# and .NET ecosystem
• Architect and implement scalable AI model integration, deployment, and serving infrastructure
• Build robust microservices architecture to support AI workloads and real-time inference
• Develop RESTful and gRPC APIs for AI model interaction and data processing
• Design and implement data pipelines for training, validation, and production AI systems
• Implement comprehensive monitoring, logging, and observability solutions for AI services
• Work with vector databases, caching layers, and distributed systems
• Participate in architectural decisions and code reviews
• Drive technical documentation and knowledge sharing initiatives

Qualifications & Skills

• Strong proficiency in C# and .NET Core/.NET 8+ with 4+ years of experience
• Deep understanding of RESTful API design, microservices architecture, and distributed systems
• Experience with both SQL (SQL Server, PostgreSQL) and NoSQL databases
• Expertise in asynchronous programming, multithreading, and performance optimization
• Solid understanding of software design patterns and SOLID principles
• Experience with version control (Git), CI/CD pipelines, and DevOps practices

Preferred Qualifications

• Experience with LLM integration (OpenAI, Azure OpenAI, Anthropic, Claude, etc.)
• Hands-on experience with RAG (Retrieval-Augmented Generation) architectures
• Deep knowledge of authentication/authorization patterns (OAuth 2.0, JWT, Azure AD)
• Experience in SAAS or enterprise software development
• Familiarity with monitoring tools (Application Insights, Prometheus, Grafana)

Your Benefits:

We are growing our team with the vision of having top performers who contribute directly to the growth of the company. As a result, we offer:

💰Competitive remuneration package

❤️Private health insurance plan

🏠Hybrid working model

💯Opportunity to work alongside people who are always eager to mentor

🚍Transportation with company’s bus from central stations

📖 Funded training & development opportunities

🥪Catering food services