Applied Scientist

SR2 | Socially Responsible Recruitment | Certified B Corporation™; Greater London; Hybrid; GBP 120,000 - 180,000; Full time

Benefits offered by this job

25 days annual leave

Pension contributions

Flexible working arrangements

Training and development opportunities

Training and development opportunities

25 days annual leave

Job summary

An innovative AI-first technology company is seeking a Staff Applied Scientist to lead technical initiatives in machine learning and natural language processing. The role involves optimizing search algorithms, managing data pipelines, and driving improvements in AI-driven workflows. Candidates should have over 8 years of experience in engineering or data science, with expertise in technical leadership, machine learning, and NLP. The position is hybrid with three days onsite weekly in London, offering competitive leave and flexible working arrangements.

Qualifications

• 8+ years of commercial engineering and/or data science experience.
• Experience in technical leadership or leading ML initiatives.
• Willingness to work 3 days per week onsite in London.
• Experience with search databases and cloud platforms.

Responsibilities

• Drive improvements across search, ML models, and AI workflows.
• Optimize search algorithms for precision and recall.
• Design AI workflows powered by large language models.
• Build and maintain scalable data pipelines.
• Drive ML/NLP projects across teams.

Skills

Technical leadership

Machine learning

Natural Language Processing (NLP)

Data pipeline management

Search optimization

Data pipelines

Tools

TensorFlow

PyTorch

Elasticsearch

OpenSearch

AWS

Job description

Staff Applied Scientist (NLP / Machine Learning)

London (Hybrid – 2 days onsite)

An innovative AI-first technology company is looking for a Staff Applied Scientist to take a technical leadership role in building advanced machine learning and NLP solutions.

The company develops cutting‑edge platforms that leverage large language models and machine learning to answer complex research questions through intelligent search and automated workflows.

As the organisation continues to scale its AI capabilities, they are looking for someone to lead and shape the technical direction of their data and NLP initiatives.

The Role

As a Staff Applied Scientist, you will act as the technical lead for data and NLP initiatives, driving improvements across search, machine learning models, and AI-driven workflows.

• Improving search performance (precision and recall)
• Optimising search algorithms to deliver fast and accurate results
• Designing and implementing agentic AI workflows powered by LLMs
• Building and maintaining scalable data pipelines
• Leading technical decision‑making across ML and NLP projects

Requirements

• 8+ years of commercial engineering and/or data science experience
• Experience in technical leadership or leading ML initiatives
• Commercial experience with machine learning
• Experience working in Natural Language Processing (NLP)
• Experience training ML models using TensorFlow and/or PyTorch
• Experience with search databases (e.g. Elasticsearch, OpenSearch)
• Experience with cloud platforms (e.g. AWS)
• Willingness to work 3 days per week onsite in London
• 25 days annual leave
• Pension contributions
• Flexible working arrangements
• Training and development opportunities

If you're interested in applying advanced AI and NLP techniques to solve complex problems and want to play a key role in shaping a growing AI platform, we’d love to hear from you.