FullStack Java Engineer

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Qualysoft

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 1999

☁️ SaaS

Software & Technology • SaaS • Consulting

Qualysoft is an independent IT consultancy based in Vienna, founded in 1999. It specializes in delivering innovative technology solutions focused on business applications, CRM consultancy, ERP consultancy, marketing automation, and software engineering. With over 25 years of experience, Qualysoft utilizes advanced technologies such as AI and data analytics to help organizations streamline operations and enhance customer experience across various industries, including banking, manufacturing, and telecommunications.

📋 Description

• Build and maintain backend services using Java 21, Spring Boot, and asynchronous processing patterns. • Design and enhance LLM-based pipeline stages for classification, matching, risk assessment, summarization, and draft generation. • Implement robust structured output validation, retry mechanisms, and error handling for model interactions. • Optimize semantic search using PostgreSQL and pgvector to enable high-quality retrieval of legal precedents. • Extend data models and database migrations with backward-compatible schema changes. • Build and enhance frontend workflows using React and TypeScript, including dashboards, document browsers, extraction review interfaces, and defense generation features. • Integrate real-time progress updates through WebSockets. • Maintain secure authentication and authorization using Keycloak, OIDC, and JWT. • Develop and maintain backend and frontend test coverage while supporting CI quality gates. • Improve observability through distributed tracing, structured logging, and operational dashboards.

🎯 Requirements

• 5+ years of software engineering experience working on production systems. • Strong experience in Java backend development, including Spring Boot, REST APIs, and data access layers. • Solid PostgreSQL expertise, including schema design and query optimization. • Hands-on experience integrating LLM APIs (OpenAI, Azure OpenAI, Anthropic, or similar). • Experience with semantic search and vector retrieval technologies (pgvector, Pinecone, Weaviate, or similar). • 3+ years of experience with React and TypeScript development. • Practical experience implementing OAuth, OIDC, and JWT authentication and authorization flows. • Strong testing discipline, including unit, integration, API, and contract testing.

🏖️ Benefits

• Premium medical package • Lunch Tickets & Pluxee Card • Bookster subscription • 13th salary/yearly bonuses • Enterprise job security with a startup mentality (diverse & engaging environment, international exposure, flat hierarchy) under the stability of a secure multinational • A supportive culture (we value ownership, autonomy, and healthy work-life balance) with great colleagues, team events and activities • Flexible working program and openness to remote work • Collaborative mindset – employees shape their own benefits, tools, team events and internal practices • Diverse opportunities in Software Development with international exposure • Flexibility to choose projects aligned with your career path and technical goals • Access to leading learning platforms, courses, and certifications (Pluralsight, Udemy, Microsoft, Google Cloud) • Career growth & learning – mentorship programs, certifications, professional development opportunities, and above-market salary