Senior Software Engineer II — AI, RAG & Cloud Solutions

Talent Octopusventures; City Of London; On-site; GBP 90,000 - 130,000; Full time

Job summary

LexisNexis Risk Solutions is seeking a Senior Software Engineer II in London to design, develop, and maintain software that drives risk assessment and customer experience improvements. You will work in cross-functional teams, mentoring juniors and contributing to projects with real user impact.

You will apply modern software practices, from RAG pipelines to LangChain-based orchestration, leveraging Python, .NET, and cloud-native solutions.

Qualifications

• Experience with Agile/Scrum methodologies and leading teams.
• Proficiency in Python and hands-on experience with AI tools and LLM APIs.
• Understanding of OOP concepts in .Net and practical integration.
• Experience with RAG pipelines, embeddings, and vector stores.
• Familiarity with Lang Chain or similar orchestration patterns.
• Deep expertise in SQL Server and performance troubleshooting.
• Experience with AWS cloud services and cloud-native apps.

Responsibilities

• Develop, maintain, and enhance software in cross-functional teams.
• Investigate and resolve customer and colleague-reported issues.
• Share knowledge and mentor junior engineers.
• Assist with project planning and effort estimation.
• Support other teams and contribute to ongoing improvements.
• Communicate effectively with diverse colleagues.

Skills

Agile/Scrum

Python

LLM APIs

OOP .NET

RAG pipelines

LangChain

SQL Server

AWS

JavaScript/TypeScript

Security engineering

Communication

Tools

LangChain

LLM APIs

Job description

LexisNexis Risk Solutions is seeking a Senior Software Engineer II in London to design, develop, and maintain software that drives risk assessment and customer experience improvements. You will work in cross-functional teams, mentoring juniors and contributing to projects with real user impact.

You will apply modern software practices, from RAG pipelines to LangChain-based orchestration, leveraging Python, .NET, and cloud-native solutions.