At a Glance
- Tasks: Design and develop innovative AI software solutions using cutting-edge technologies.
- Company: Join LSEG, a global leader in financial markets with over 300 years of excellence.
- Benefits: Enjoy healthcare, retirement planning, paid volunteering days, and growth opportunities.
- Other info: Be part of a diverse team that values innovation and equal opportunities.
- Why this job: Make an impact in AI development while working on scalable, secure systems.
- Qualifications: Experience in software development and AI, with strong skills in Java and Python.
The predicted salary is between 80000 - 100000 £ per year.
Company Overview
LSEG (London Stock Exchange Group) is a diversified global financial markets infrastructure and data business dedicated to excellence and open‑access partners. With a heritage of 300+ years, LSEG enables businesses to fund innovation, manage risk and create jobs worldwide.
Role Summary
The Principal AI Engineer is a senior technical expert responsible for designing, developing, and delivering high‑quality software solutions, with a focus on AI technologies such as prompt engineering and large language models (LLMs). The role emphasizes deep technical proficiency, innovation, and hands‑on development across scalable, secure, and performance‑critical systems.
Responsibilities
- Software Development
Design and implement complex, scalable, and secure applications. Write clean, efficient, and maintainable code in Java, Python, and other high‑level languages. - Technical Expertise
Provide architectural guidance and ensure adherence to best practices. Optimize system performance and troubleshoot critical issues. - AI Development
Develop and refine prompt engineering strategies for LLM‑based applications. Integrate and optimise Large Language Models (LLMs) into products and workflows. Collaborate with AI teams to improve model performance and user experience. - Innovation & Research
Stay current with emerging technologies, frameworks, and AI advancements. Prototype and evaluate new tools and methodologies for adoption. Work closely with product managers, QA, and other developers to deliver high‑quality solutions. Participate in code reviews and contribute to technical documentation. - Process & Quality
Advocate for automation, testing, and continuous integration practices. Ensure compliance with security and regulatory standards.
What You'll Bring
- Proven experience in software development with at least a year in AI Development.
- Extensive experience in system architecture and delivering complex projects.
- Strong technical background in Java, Python, and other high‑level programming languages.
- Expertise in designing scalable and secure systems.
- Hands‑on experience with AI tools and frameworks, including:
- Prompt Engineering for LLMs (e.g., OpenAI GPT, Anthropic Claude).
- Model fine‑tuning and deployment.
- AI integration into enterprise applications.
- Prompt management tools (Langfuse).
- Knowledge of vector databases, embeddings, and retrieval‑augmented generation (RAG).
- Experience with cloud platforms (AWS, Azure, GCP).
- Familiarity with CI/CD pipelines and modern development tools.
Benefits
Healthcare and retirement planning. Paid volunteering days and wellbeing initiatives. Opportunities for professional growth and career advancement.
Equal Opportunity Employer
LSEG is a proud equal opportunities employer. We do not discriminate on the basis of 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. We accommodate applicants’ and employees’ religious practices and mental health or physical disability needs in compliance with applicable law.
Principal AI Engineer in London employer: LSEG
LSEG is an exceptional employer that fosters a culture of innovation and collaboration, particularly for the Principal AI Engineer role. With a commitment to employee growth through professional development opportunities, comprehensive healthcare benefits, and a supportive work environment, LSEG empowers its team to excel in cutting-edge AI technologies while contributing to a legacy of excellence in the financial markets sector.
StudySmarter Expert Advice🤫
We think this is how you could land Principal AI Engineer in London
✨Network Like a Pro
Get out there and connect with people in the industry! Attend meetups, webinars, or even just grab a coffee with someone who works at LSEG. Building relationships can open doors that a CV just can't.
✨Show Off Your Skills
When you get the chance to chat with potential employers, don’t hold back! Share your projects, especially those involving AI and LLMs. We want to see your hands-on experience and how you tackle real-world problems.
✨Tailor Your Approach
Every interaction is a chance to showcase why you're the perfect fit for the Principal AI Engineer role. Research LSEG’s recent projects and align your skills with their needs. Make it clear how you can contribute to their innovative environment.
✨Apply Through Our Website
Don’t forget to apply directly through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in being part of the LSEG team.
We think you need these skills to ace Principal AI Engineer in London
Some tips for your application 🫡
Tailor Your Application:Make sure to customise your CV and cover letter for the Principal AI Engineer role. Highlight your experience with AI technologies, especially prompt engineering and LLMs, to show us you’re the perfect fit!
Show Off Your Technical Skills:We want to see your coding prowess! Include specific examples of projects where you've used Java, Python, or any AI tools. This is your chance to shine and demonstrate your hands-on experience.
Be Clear and Concise:When writing your application, keep it straightforward. Use clear language and avoid jargon unless it's relevant. We appreciate a well-structured application that gets straight to the point!
Apply Through Our Website:Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for the role. We can’t wait to hear from you!
How to prepare for a job interview at LSEG
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of Java, Python, and AI technologies like prompt engineering and LLMs. Be ready to discuss specific projects where you've implemented these skills, as this will show your hands-on experience and technical proficiency.
✨Showcase Your Problem-Solving Skills
Prepare to talk about how you've tackled complex issues in past projects. Think of examples where you optimised system performance or resolved critical problems. This will demonstrate your ability to troubleshoot and innovate under pressure.
✨Stay Current with AI Trends
Familiarise yourself with the latest advancements in AI and related tools. Being able to discuss emerging technologies and how they can be integrated into products will highlight your commitment to innovation and research.
✨Emphasise Collaboration
Since the role involves working closely with product managers and QA teams, be prepared to share experiences where you've successfully collaborated with others. Highlight your communication skills and how you advocate for best practices in software development.
