Senior Full-Stack Engineer & Product Owner (AI-Native)

Job Description Location: Bucharest – On-site Contract type: Individual employment contract, indefinite period Experience level: Senior (7+ years) Field: Software Development / Artificial Intelligence / Product Development Salary: Negotiable at interview. Founded in 2012, Unitip Global is a successful company specializing in road infrastructure construction, bridges, civil construction and hydro-edilitary construction. Although we operate in a traditional sector, we constantly invest in technology and digitalization to optimize processes and support sustainable progress. We are looking for a passionate Full Stack Developer with whom we can build the future, both literally and in the digital environment, guided by clear principles: “Do it right the first time”, honesty through “we said it, we did it”, and proactive action, without waiting to be told what to do. We look forward to having you on the team! ABOUT THE ROLE We are looking for a Senior Full-Stack Engineer & Product Owner who combines solid experience in software development with an understanding of business processes and the ability to transform user requirements into functional digital products. You will have an important role in the development and evolution of software products, working directly with specialists and experts in the field using modern AI-assisted development tools such as Claude Code and Cursor. We are looking for a professional with strong programming skills who understands what needs to be built, why, and how it can be delivered efficiently, securely and scalably. MAIN RESPONSIBILITIES Software Development & Architecture - Developing full-stack applications, from backend architecture and databases to web and mobile interfaces. - Designing and implementing APIs and scalable software solutions. - Code review, optimization, testing and ensuring application security. - Investigating incidents and continuously improving existing applications; documenting technical and architectural decisions. Product Ownership & Business Analysis - Working directly with users to identify real business needs. - Analyzing and modeling operational processes; defining functional specifications and acceptance criteria. - Managing and prioritizing the product backlog; validating features together with users. AI-Assisted Development - Using Claude Code, Cursor or other AI tools for software development. - Coordinating development workflows assisted by AI agents; verifying and validating AI-generated code. - Integrating AI functionalities into the applications developed; improving development processes through automation. Mandatory Requirements - Minimum 5 years of experience in software development (full-stack development, business analysis, product ownership/implementation consulting). - Backend experience with Python, FastAPI, SQLAlchemy or equivalent technologies. - Frontend experience with TypeScript, React / Next.js. - Advanced knowledge of PostgreSQL, query optimization and transaction management. - Experience with API design, Domain-Driven Design and event-driven architectures. - Knowledge of software security: OWASP, OAuth2/OIDC, JWT, authorization and data protection. - Experience in automated testing, Git and code review. - The ability to analyze business processes and transform complex requirements into technical solutions. Advantages - Experience with ERP, CRM systems or enterprise applications. - Implementation of open-source AI models: Llama, Qwen, Mistral, DeepSeek. - Experience with RAG, embeddings, vector databases and pgvector. - Experience with Hugging Face, PyTorch, LoRA / QLoRA or MLOps. - React Native / Expo and offline-first mobile applications. - GIS / PostGIS. - Experience in a startup or in a small technical team. IDEAL CANDIDATE PROFILE We want a colleague who: - Thinks from both the user's perspective and the software engineer's perspective. - Shows initiative and takes responsibility for the results delivered. - Can make well-reasoned technical decisions and propose simple, efficient solutions. - Communicates and collaborates with both technical and non-technical teams. APPLY If you have solid experience in software development and want a role where you can contribute both to the technical architecture and to the product direction, we invite you to apply with your CV. Skills Agile methodology, Agile Scrum, API, Cybersecurity Threat Hunting, ERP, GIT, Product development, Product management, Python, Typescript