Senior Consultant Specialist (RAG Backend Developer)

Some careers have more impact than others.

If you’re looking for a career where you can make a real impression, join HSBC and discover how valued you’ll be.

We are currently seeking an experienced professional to join our team in the role of Senior Consultant Specialist (RAG Backend Developer).

Business:CTO Platforms

Job ID: 47136

Location: Guangzhou

Principal responsibilities

• Backend architecture & delivery for RAG (incl. Graph RAG & agentic search): Design and implement core RAG backend capabilities, including retrieval, re-ranking, context construction, prompt orchestration, response aggregation, Graph RAG patterns (entity/relation extraction, graph traversal, graph-grounded context assembly), and agentic search (multi-step query planning, iterative retrieval, tool/function calling).
• Build pipelines for multi-modal and multi-type data (documents, emails, wikis, images, tables, logs, structured sources), including extraction/OCR, chunking, enrichment, embedding, and incremental re-indexing with rollback.
• Retrieval, ranking & graph reasoning optimisation: Implement hybrid retrieval (BM25/vector/structured filters), multi-stage recall, reranking (cross-encoder/LLM), deduplication/diversity controls, and graph-based retrieval strategies to improve relevance, explainability, and traceability.
• Grounded, supported answer generation: Build generation workflows that produce grounded answers with explicit support (citations, quoted evidence snippets, and source metadata), including answer structuring, confidence/scoring signals, refusal/insufficient-evidence handling, and traceable “why this answer” outputs for auditability.
• Security & compliance: Implement access controls (RBAC/ABAC), data classification and masking, audit logging, encryption, and secrets management; ensure retrieval and generation flows meet bank-grade compliance requirements.
• Data governance & lineage: Enforce data ownership, classification, retention, and access policies; maintain metadata standards, lineage, and provenance (citations/attribution) to ensure outputs are grounded in approved sources.
• Quality evaluation & continuous improvement: Establish offline/online evaluation (groundedness, faithfulness, citation coverage, latency), enabling A/B testing and regression validation.
• Cross-team collaboration: Partner with AI Infra, data platforms, information security, and product teams to land RAG capabilities in multiple systems and continuously evolve the platform.

Requirements

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related technical discipline.
• 5+ years of backend engineering experience; strong proficiency in at least one mainstream backend stack: Python (FastAPI) or Go.
• Solid understanding of core RAG components and patterns, including chunking, embeddings, hybrid search, reranking, context window management, citations/attribution, and evaluation.
• Hands-on experience with containerisation and cloud-native engineering (Docker, Kubernetes, CI/CD), with a proven track record of troubleshooting and performance tuning in production.
• Strong communication and collaboration skills, with the ability to deliver under multi-dimensional constraints (security, compliance, performance, and cost).
• Demonstrates an AI-native mindset, applying AI-driven approaches to improve  productivity, quality, and decision-making.

You’ll achieve more when you join HSBC.

HSBC is an equal opportunity employer committed to building a culture where all employees are valued, respected and opinions count. We take pride in providing a workplace that fosters continuous professional development, flexible working and, opportunities to grow within an inclusive and diverse environment. We encourage applications from all suitably qualified persons irrespective of, but not limited to, their gender or genetic information, sexual orientation, ethnicity, religion, social status, medical care leave requirements, political affiliation, people with disabilities, color, national origin, veteran status, etc., We consider all applications based on merit and suitability to the role. /WX

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***Issued By HSBC Software Development (GuangDong) Limited***