Lead Software Engineer, Full-Stack Applications – AI Fluent (London)

Overview

In this Lead Software Engineer role, you will shape mission-critical, AI-enabled analytics platforms within Fitch Ratings’ Ratings Technology team. You’ll blend hands-on engineering leadership with architectural input to modernize workflows and promote responsible AI adoption across squads. You will mentor engineers, drive practical AI experiments, and deliver scalable full-stack solutions that empower analysts. This role offers strategic influence, cross-functional collaboration, and the chance to build systems that scale globally while advancing innovation.

Pay / Benefits

• hybrid work options
• premier offices (London, Manchester, Toronto)
• comprehensive benefits
• training and certifications
• mentorship opportunities
• clear paths to principal/architect/leadership tracks

Responsibilities

• Define technical vision and accelerate AI-enabled transformation with Python and React
• Guide architectural decisions and establish coding standards
• Mentor engineers and foster a culture of experimentation and psychological safety
• Champion responsible AI adoption, evaluate proofs of concept, and scale successful practices
• Implement CI/CD pipelines and conduct architecture reviews for scalability and performance
• Lead strategic technical initiatives spanning multiple teams and share AI learnings
• Ensure reliability and performance in fast-paced Agile environments

Key requirements

• 12+ years of professional software engineering experience
• Expert Python backend development for scalable enterprise applications
• Hands-on React experience in production-grade web apps
• Strong TypeScript/JavaScript, HTML, CSS skills
• Experience designing RESTful APIs and integrating third-party services
• Solid software design principles, data structures, algorithms, and scalable architecture
• Experience with relational and NoSQL databases
• Familiarity with Agile development methodologies
• AI Fluency and familiarity with AI platforms (LLM APIs such as OpenAI, AWS Bedrock, Anthropic)
• Bachelor’s degree in Computer Science, Software Engineering, or related field or equivalent experience
• Strong communication and collaboration skills

• collaboration
• leadership
• mentorship
• Python
• React
• TypeScript/JavaScript

…