Full-stack Python Engineer
BucharestRemote
AI Summary
Full-stack Python Engineer responsible for building and maintaining backend services, designing LLM-driven pipelines, and extending frontend workflows in React/TypeScript.
About this role
About Qualysoft
·25 years of experience in software engineering, established in Vienna, Austria
·Active in Romania since 2007, with office in central Bucharest (Bd. Iancu de Hunedoara 54B)
·Delivering End to End IT Consulting Services - From Team Augmentation and Dedicated Teams to Custom Software Development
·We deliver scalable enterprise systems, intelligent automation frameworks, and digital transformation platforms
·Cross-industry experience by sustaining global players in BSFI (Banking, financial services and insurance), Telecom,Retail & E-commerce, Energy and Utilities, Automotive, Manufacturing, Logitics, High Tech
·Global Presence: Switzerland, Germany, Austria, Sweden, Hungary, Slovakia, Serbia, Romania, and Indonesia
·International team of 500+ software engineers
·Strategic partnerships: Microsoft Cloud Certified Partner, Tricentis Solutions Partner in Test Automation and Test Management, Creatio Exclusive Partner, Doxee Implementation Partner
·Powered by cutting-edge technologies: AI, Data & Analytics, Cloud, DevOps, IoT, and Test Automation.
·Project beneficiaries ranging from large-scale enterprises to startups
·Stable growth and revenue increase year over year, a resilient organisation in volatile IT market conditions
·Quality-first mindset, culture of innovation, and long-term client partnerships
·Global and local reach – trusted by key industry players in Europe and the US
Responsibilities
• Build and maintain backend services using FastAPI, Python, and async patterns.
• Design and improve LLM-driven pipeline steps for classification, matching, risk assessment, synthesis, and draft generation.
• Implement robust structured-output validation, retries, and error handling for model calls.
• Optimize semantic search using PostgreSQL and pgvector for high-quality legal precedent retrieval.
• Extend data models and Alembic migrations with backward-compatible schema changes.
• Build and enhance frontend workflows in React and TypeScript (dashboard, document browser, extraction review, defense generation).
• Integrate real-time progress updates via WebSockets.
• Maintain secure authentication and authorization with Keycloak, OIDC, and JWT.
• Add tests for backend and frontend features and support CI quality gates.
• Improve observability with tracing, structured logging, and operational dashboards.
Qualifications
• 5+ years of software engineering experience in production systems.
• Strong Python backend development experience (FastAPI or equivalent async framework).
• Solid PostgreSQL skills, including schema design and query optimization.
• Hands-on experience integrating LLM APIs (OpenAI/Azure OpenAI/Anthropic or similar).
• Experience with semantic search/vector retrieval (pgvector, Pinecone, Weaviate, or similar).
• 3+ years of React + TypeScript development.
• Practical experience with OAuth/OIDC/JWT authentication flows.
• Testing discipline (unit, integration, and API testing).
Nice to have
• Experience with Azure services (OpenAI, Document Intelligence, PostgreSQL, Container Apps).
• Experience with Docker, Docker Compose, and CI/CD pipelines.
• Knowledge of legal-tech, financial services, or compliance-heavy domains.
• Familiarity with observability stacks (OpenTelemetry, structured logging, monitoring dashboards).
Skills
AlembicAsyncFastAPIJWTKeycloakLLM APIsObservabilityOIDCPGVectorPostgreSQLPythonReactTypeScriptWebSockets
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