AI Engineer (Applied Generative AI)

AI Engineer (Applied Generative AI)

Digitalisation – DSM (Digital Securities Market), LSEG

About the Role

We are looking for a skilled and motivated AI Engineer to join the Digitalisation team within DSM (Digital Securities Market) at LSEG. This role is suited to an engineer with hands‑on experience building production‑ready AI and LLM‑powered systems, who is eager to deepen their expertise in applied generative AI within a regulated, enterprise environment.

You will work on real‑world AI solutions that modernise operational workflows and accelerate automation across Capital Markets. The role focuses on Large Language Models (LLMs), agent‑based systems, orchestration frameworks, and cloud‑native AI services, with a strong emphasis on reliability, security, and responsible AI.

You will operate as a hands‑on contributor, working within established architectures and patterns, while learning from more senior engineers and gradually increasing your technical scope and ownership.

Key Responsibilities

LLM & Generative AI Engineering

• Design, develop, and deploy LLM‑powered features and applications using Amazon Bedrock.
• Build and maintain RAG pipelines, agent workflows, and prompt‑based solutions using frameworks such as LangChain, LangGraph, or LlamaIndex.
• Implement prompt templates, evaluation techniques, and basic guardrails to ensure AI outputs are reliable and safe.
• Apply appropriate optimisation techniques (prompting, retrieval, selective fine‑tuning) under guidance from senior engineers.

AI System Implementation & Orchestration

• Implement AI workflows using AWS services such as Lambda, Step Functions, EventBridge, ECS, and containerised services.
• Integrate AI components with enterprise systems including ServiceNow, Snowflake, MS Teams, REST APIs, and data platforms.
• Contribute to the reliability, performance, and maintainability of AI services in production.

Data Engineering for AI

• Build and maintain data pipelines supporting AI use cases using PySpark, Glue, Snowflake, Kafka/Kinesis, or similar technologies.
• Develop and operate embedding pipelines and vector indexes to support retrieval‑based AI systems.
• Follow established practices for data quality, versioning, lineage, and compliance.

MLOps / AI Operations

• Deploy AI services using existing CI/CD pipelines and infrastructure‑as‑code patterns.
• Contribute to monitoring, logging, and evaluation of AI systems in production.
• Work closely with platform and security teams to ensure solutions comply with Responsible AI and regulatory requirements.

Collaboration & Ways of Working

• Collaborate with data scientists, DevOps engineers, and business stakeholders to deliver AI solutions aligned with business needs.
• Participate in Agile ceremonies, sprint planning, and technical discussions.
• Produce clear technical documentation and contribute to shared codebases and tooling.

What Success Looks Like

• You deliver reliable AI features or services that are used in live DSM operational workflows.
• You can independently own AI components from development through production support.
• You understand and apply best practices for LLM orchestration, RAG, and AI safety.
• You grow in confidence and technical breadth, preparing for increased scope over time.

Required Skills & Experience

AI & LLMs

• Hands‑on experience with LLMs, including prompt design, embeddings, and RAG‑based approaches.
• Experience using LangChain, LangGraph, LlamaIndex, or similar frameworks.
• Experience deploying AI or ML systems beyond proof‑of‑concepts.

Cloud & Software Engineering

• Experience working in AWS environments, ideally with Amazon Bedrock.
• Strong Python skills and experience building APIs or services (e.g. FastAPI).
• Familiarity with Docker and modern software engineering practices.

Data & Pipelines

• Working knowledge of SQL, Spark/PySpark, Snowflake, or similar data processing tools.
• Exposure to workflow orchestration tools such as AWS Step Functions, Apache Airflow.

Professional Skills

• Clear communication skills and ability to work effectively in cross‑functional teams.
• Experience working in Agile delivery environments.
• Curiosity and willingness to learn in a fast‑moving AI landscape.

Desirable Skills

• Experience with vector databases (OpenSearch, Pinecone, Weaviate, Milvus).
• Familiarity with AI evaluation techniques and output quality monitoring.
• Exposure to knowledge graphs or structured data reasoning.
• Experience in financial services or regulated environments.

Why Join Us

You will join a collaborative team applying modern AI and generative technologies to real operational challenges in Capital Markets. This role offers hands‑on exposure to production LLM systems, strong engineering practices, and opportunities to grow toward more advanced technical roles over time.

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject.

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.

Career Stage:

Senior Associate

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject.

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.