Konstantin Stefanov
Konstantin Stefanov

Senior Software Engineer | AI/ML Specialist

Open to offers · Member since 10 Aug 2026
Message
Location
Plovdiv, Bulgaria
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Software Engineer and AI/ML Specialist with more than 10 years of experience developing scalable, production-ready software solutions.

I specialize in full-stack engineering, backend services, RESTful APIs, cloud technologies, and modern software architecture. My primary programming languages include Python, JavaScript, TypeScript, Java, and SQL.

I design and integrate AI and machine learning capabilities into enterprise applications, including Generative AI, large language models, NLP, RAG, vector databases, model deployment, and AI automation.

I have extensive experience building web and mobile applications with React.js, Next.js, Node.js, Express.js, and a range of relational and NoSQL databases.

I work effectively in Agile and Scrum environments, collaborating with product managers, engineers, designers, and stakeholders to translate business requirements into reliable technical solutions.

I focus on performance, scalability, maintainability, automated testing, system design, and continuous improvement throughout the software development lifecycle.

Skills

34 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Collaboration

Experience

Career history

Senior Software Engineer – AI/ML Accedia

I design and develop AI/ML-powered software solutions for enterprise applications, with an emphasis on scalable, reliable, maintainable, and production-ready systems.

I build backend services and RESTful APIs, integrate machine learning and AI capabilities into business applications, and contribute to architecture, technical planning, testing, code reviews, and continuous improvement. I also research and implement Generative AI and LLM-based solutions while collaborating with product managers, engineers, and stakeholders.

Senior Software Engineer – AI Specialist Lexis Solutions

I designed and implemented AI-powered software solutions, intelligent application features, scalable web applications, backend services, and RESTful APIs.

I integrated AI, machine learning, and Generative AI technologies into existing platforms to automate workflows and improve user experiences. I led technical implementation from requirements through deployment and contributed to code reviews, engineering standards, architecture decisions, performance optimization, and development best practices.

Full Stack Engineer Flat Rock Technology

I developed and maintained scalable full-stack web applications, including reusable React.js components, Node.js backend services, RESTful APIs, and database solutions.

I implemented responsive interfaces and business-critical functionality while improving performance through optimization, debugging, and troubleshooting. I collaborated with designers, product teams, and engineers in Agile/Scrum workflows and participated in testing, deployment, production support, and code reviews.

Web/Mobile Developer Vola Software

I developed and maintained web and mobile applications for business and consumer users, building responsive interfaces, interactive features, backend services, and third-party API integrations.

I designed and maintained database structures, resolved software issues, and improved application stability and performance. I collaborated with development teams across testing, deployment, maintenance, and the broader software development lifecycle.

Education

Learning history

University of Amsterdam

MSc, Computer Science

Master of Science in Computer Science.

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