Senior Principal AI/ML Engineer

You will need to login before you can apply for a job.

Sector: Engineering, Technology
Role: Senior Executive
Contract Type: Permanent
Hours: Full Time
Site Name: UK - London - New Oxford Street, UK - Hertfordshire - Stevenage
Posted Date: Mar 19 2025

GSK is a global leader in pharmaceuticals and healthcare, with a relentless commitment to advancing healthcare for the betterment of humanity. Our mission is to help people around the world do more, feel better, and live longer. We achieve this by researching, developing, and providing innovative medicines and vaccines. Our dedication to scientific excellence and ethical practices guides everything we do.

R&D at GSK is highly data-driven, and we're applying AI/ML and data science to generate new insights, enable analytics, gain efficiencies and automation.

This role is based in an AI/ML team that is already working on projects involving Generative AI, Information Retrieval, NLP, agentic application development and data science, and has won awards and recognition for its work. The team's future projects will be in diverse areas, such as regulatory, clinical, legal and HR. Versatility is key, with an ability to quickly understand domain data and requirements and translate them into solutions. You will interact with architects, software and data engineers, modelers, data scientists, other AI/ML engineers, product owners as well as other team members in Clinical Solutions and R&D. You will actively participate in creating technical solutions, designs, implementations and participate in the relentless improvement of R&D Tech systems in alignment with agile and DevOps principles.

We're looking for demonstrable expertise across a selection of the following key competencies: Generative AI and agentic application development, model building, training and evaluation, natural language processing, classification problems and software development. You should also be versed in agile ways of working, source control and the Azure cloud.

In this role you will

You'll have the opportunity to work on a mixture of the following:

• Generative AI
  • Design and develop production grade RAG based agentic applications.
  • LLM fine-tuning, including preparation of training sets from internal data
  • Evaluating use-case specific small/large LMs
• AI/ML
  • NLP: Named Entity Recognition across a variety of unstructured data.
  • Evaluating and training BERT-like models such as GLiNER, NuNER for NER tasks. Analyzing trade-offs between these models and LLMs for NLP tasks.
  • Relationship Extraction: Evaluating different models for use-case specific RE, such as ATG.
• Data Science: Data clustering algorithms, feature engineering
• Evaluate and integrate new technologies and models.
• Cross-team collaboration, identifying innovations and architecting solutions.
• Provide leadership and technical direction to various business units and partners

Why you?

Qualifications & Skills:

We are looking for professionals with these required skills to achieve our goals:

• Bachelor's degree in computer science
• Extensive experience working in AI/ML
• Generative AI: Demonstrable experience of RAG, including chunking strategies, vectorizing and indexing data, retrieval strategies and reranking, prompting strategies, function calling. Our current tech-stack is OpenAI, LangChain, Azure AI, Python, pg_vector, Sinequa. Experience of multi-agent frameworks (LangGraph, Autogen etc.) would be a plus, as would experience of multimodal LLMs (like GPT4 Omni, Qwen-vl, DocOwl etc.) for understanding complex documents and images.
• AI/ML: Hands-on experience with training and evaluating BERT-like models in real-world applications, especially in NLP or classification problems.
• Hands-on experience with ML tools like TensorFlow, PyTorch etc.
• Experience with data science libraries such as NLTK, Scikit-learn, SciPy, (Sci)SpaCy etc.
• Excellent problem-solving and programming skills in Python
• Excellent communication skills

Preferred Qualifications & Skills:

If you have the following characteristics, it would be a plus:

• Master's or PhD in Computer Science
• Some experience with MLOps would be very beneficial.
• Experience with building search applications using Azure Search, Sinequa, Elastic or anything Lucene-based would come in handy but is not necessary.
• Familiarity with Azure cloud (AKS, Azure AI, ADF, Document Intelligence etc.), though you'll work with experts to gain this skill as well.
• Experience in training, evaluating and hosting open source LLMs would be a major benefit.

Closing Date for Applications:

Wednesday 2nd April 2025 (COB)

Please take a copy of the Job Description, as this will not be available post closure of the advert.

When applying for this role, please use the 'cover letter' of the online application or your CV to describe how you meet the competencies for this role, as outlined in the job requirements above. The information that you have provided in your cover letter and CV will be used to assess your application.

During the course of your application, you will be requested to complete voluntary information which will be used in monitoring the effectiveness of our equality and diversity policies. Your information will be treated as confidential and will not be used in any part of the selection process. If you require a reasonable adjustment to the application/selection process to enable you to demonstrate your ability to perform the job requirements, please contact 0808 234 4391. This will help us to understand any modifications we may need to make to support you throughout our selection process.

Why GSK?

Uniting science, technology and talent to get ahead of disease together.

GSK is a global biopharma company with a special purpose - to unite science, technology and talent to get ahead of disease together - so we can positively impact the health of billions of people and deliver stronger, more sustainable shareholder returns - as an organization where people can thrive. We prevent and treat disease with vaccines, specialty and general medicines. We focus on the science of the immune system and the use of new platform and data technologies, investing in four core therapeutic areas (infectious diseases, HIV, respiratory/immunology and oncology).

Our success absolutely depends on our people. While getting ahead of disease together is about our ambition for patients and shareholders, it's also about making GSK a place where people can thrive. We want GSK to be a place where people feel inspired, encouraged and challenged to be the best they can be. A place where they can be themselves - feeling welcome, valued, and included. Where they can keep growing and look after their well-being. So, if you share our ambition, join us at this exciting moment in our journey to get Ahead Together.

As an Equal Opportunity Employer, we are open to all talent. In the US, we also adhere to Affirmative Action principles. This ensures that all qualified applicants will receive equal consideration for employment without regard to neurodiversity, race/ethnicity, colour, national origin, religion, gender, pregnancy, marital status, sexual orientation, gender identity/expression, age, disability, genetic information, military service, covered/protected veteran status or any other federal, state or local protected class (US only).

We believe in an agile working culture for all our roles. If flexibility is important to you, we encourage you to explore with our hiring team what the opportunities are.