Senior AI Engineer

Strategic Staffing Solutions International client — a global IT company that supports major organizations in their digital transformation efforts. Their team develops innovative IT solutions, transitions clients to the cloud, integrates digital processes, and manages IT systems operations and support.

You'll be responsible for developing next-generation multi-tenant AI platform while maintaining and enhancing existing conversational agent installations across various customer environments. This role combines modern AI/ML technologies with enterprise software engineering to deliver intelligent conversational experiences through Microsoft Teams and other interfaces.

Responsibilities:

Platform Development

• Design and develop microservices for our multi-tenant conversational AI platform using Python and FastAPI.
• Build and optimize RAG-enabled conversational agents using LangChain and LangGraph.
• Implement knowledge ingestion pipelines supporting multiple source types (Confluence, documents, URLs, APIs.)
• Develop vector search capabilities using PostgreSQL with pgvector for semantic knowledge retrieval.
• Integrate Azure OpenAI services (GPT-4, embeddings) with multi-tenant credential management.
• Implement event-driven architectures using RabbitMQ for service communication.

System Maintenance & Support

• Maintain and enhance existing conversational agent installations for enterprise customers.
• Monitor system health, troubleshoot issues, and implement performance optimizations.
• Deploy updates and patches to production environments.
• Provide technical support for customer-specific configurations and integrations.

Quality & Operations

• Implement comprehensive testing strategies (unit, integration, end-to-end).
• Set up observability using Prometheus, Grafana, and OpenTelemetry.
• Ensure security best practices including multi-tenant data isolation and encryption.
• Participate in code reviews and contribute to technical documentation.
• Practice spec-driven development (SDD) for clear requirements and implementation alignment.

Requirements:

• Strong Python development experience (3+ years)
• Experience with microservices architecture and RESTful API design
• Solid understanding of relational databases (PostgreSQL preferred)
• Experience with Docker containerization and deployment
• Knowledge of authentication, authorization, and multi-tenant security patterns
• Proficiency with Git and modern development workflows
• Familiarity with LLM integration (OpenAI, Azure OpenAI, or similar)
• Experience with RAG (Retrieval-Augmented Generation) architectures
• Understanding of vector databases and embeddings
• 5+ years of backend software development including AI/ML integration work
• Experience maintaining production systems and handling operational issues
• Track record of delivering features in agile/iterative environments
• Strong problem-solving and debugging skills
• Comfortable using AI coding assistants (Claude Code, GitHub Copilot, Gemini, etc.) as daily development tools
• Excellent verbal and written English language skills: required for communication across our international locations and with international clients.

Company offers:

• Monthly gross salary from 4000 to 5000 EUR, depending on your level of expertise.
• Hybrid way of working with cozy office space in the center of Riga, when needed, and flexible working hours opportunities, based on your own preferences.
• Family-oriented company values and healthy attitude towards work and life balance granting additional 4 vacation days, birthday leave, "Happy Land" space in the office for children, etc.
• Individual development and learning plan, including yearly budget for external training.
• Necessary essentials health insurance with dental services and sports coverage.
• Possibility to work in mutual trust and positive team environment, to be creative and improve working flows by self-initiatives.
• Friendly, multicultural and cooperation orientated colleagues.