Senior AI Developer

We are seeking an experienced and forward-thinking Senior Software Engineer to play a key role in driving a large-scale AI and intelligent automation agenda within a complex technology environment. We are looking for someone who combines strong full-stack development expertise with a genuine passion for AI, systems architecture, and business transformation. You will help identify, design, build, deploy and embed AI-powered solutions and agent-based workflows that deliver measurable business impact. This opportunity is ideal for someone who wants to work in an AI-first environment where artificial intelligence is already being actively leveraged across engineering teams and business processes. You'll be joining a highly visible team with significant investment, ambitious objectives and the opportunity to influence technical direction. What You'll Be Doing: * Design, build and deploy AI-powered applications, services and intelligent agents that automate and enhance business workflows. * Partner with stakeholders to identify opportunities where AI can create efficiency, scalability and operational improvements. * Drive end-to-end solution delivery across the full technology stack, from user-facing applications through to backend services and integrations. * Contribute to technology strategy, systems design and architectural decision-making. * Review and govern AI-generated code, ensuring quality, maintainability and long-term sustainability. * Leverage modern AI-assisted engineering tools to accelerate delivery while maintaining robust engineering standards. * Champion scalable, secure and interoperable technology solutions. * Help shape the roadmap for AI adoption across the organisation and contribute to long-term innovation initiatives. * Work within a fast-moving environment where experimentation, continuous learning and rapid execution are encouraged. Desired Experience * 8-12+ years software engineering experience within complex enterprise technology environments. * Strong full-stack development capability with the ability to operate across multiple technologies and platforms. * Experience designing and delivering scalable distributed systems. * Proven understanding of software architecture and modern design principles. * Practical experience building, deploying or integrating AI, machine learning, generative AI or agent-based solutions. * Strong systems-thinking mindset with the ability to understand and optimise end-to-end business processes. * Experience leveraging AI-assisted development tools and modern engineering practices. * Ability to balance delivery speed with engineering quality and maintainability. * Strong communication skills with the confidence to engage with technical and non-technical stakeholders. * Python, Java or other modern programming languages. * Microservices and distributed architectures. * Architecture patterns including Domain-Driven Design (DDD), CQRS, Event-Driven Architecture and Clean Architecture. * Cloud-native development and scalable platform design. * API design, systems integration and interoperability. * Workflow automation and orchestration frameworks. * DevOps, CI/CD and software engineering best practices. * AI frameworks, LLMs, agentic workflows and intelligent automation platforms. Detillens is an Emerging Leaders consultancy. We hire, train and deploy future leaders into client environments across financial services — from professionals at the start of their careers through to those with up to a decade of experience.