Senior Backend Software Engineer (Python)

Clerq is an AI-driven patent search and analytics platform helping companies, law firms, and universities research patents through large language models and natural language search. Our work sits at the intersection of software engineering, AI, and information retrieval, building tools that make complex patent data more accessible, searchable, and useful for expert users.

As a Senior Backend Software Engineer (Python), you will play an important role in shaping the systems behind our platform. You will help strengthen the backend architecture that supports scalable product development, working closely with cross-functional colleagues to improve performance, reliability, and technical direction. This is an opportunity to contribute to a platform applying modern AI technology to a highly specialized and meaningful domain.

Requirements

• Strong experience with Python web frameworks such as Django or Flask
• Proficient with RESTful API design and implementation
• Experience with SQL databases such as PostgreSQL
• Familiarity with containerization technologies like Docker and orchestration tools
• Experience working with cloud platforms such as AWS, GCP or Azure
• Solid understanding of software engineering best practices including testing, code reviews, and CI/CD pipelines
• Eligible to work in the UK

Preferred qualifications:

• 5+ years of professional experience in backend software development primarily using Python
• Experience with NLP or semantic search systems
• Knowledge of large language models (LLMs)
• Experience with Terraform or cloud infrastructure management
• Familiarity with frontend technologies such as React
• Experience with Elasticsearch or Opensearch

Benefits

• Competitive salary of 70000-85000 GBP/year
• Flexible working
• Pension
• Training & Development
• Stock Option Plan