Senior Full-Stack Engineer: AI-Driven Cloud Apps

Holt Executive; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Holt Executive is seeking a Senior Full Stack Software Engineer to develop data-driven applications, cloud platforms and AI-enabled tools. This hands-on role spans backend services, APIs, frontend interfaces and modern cloud infrastructure.

You will work with Python, AWS (Lambda, ECS/Fargate, S3), Docker, Terraform and Git within CI/CD workflows. In a small, collaborative team, you’ll contribute to architectural decisions, build features and help evolve existing applications into scalable

Qualifications

• Strong Python development experience.
• Practical experience with AWS services such as Lambda, ECS/Fargate, S3 and API Gateway.
• Experience deploying and managing containerised applications using Docker.
• Good SQL skills and experience working with data warehouses.
• Hands-on experience with Infrastructure as Code, particularly Terraform.
• Proficiency with Git and modern CI/CD workflows.
• Experience contributing to the design and implementation of multi-component software systems.
• An interest in using AI-assisted development tools and building AI-enabled software features.
• Strong problem-solving skills and the ability to collaborate effectively within a cross-functional team.

Responsibilities

• Design, develop and maintain full-stack applications across back-end services and front-end interfaces.
• Build production software using Python, TypeScript and modern web technologies.
• Develop cloud-based applications and services using AWS and other cloud platforms.
• Integrate applications with data pipelines, enterprise systems and external services.
• Build AI-powered features, including LLM integrations, prompt orchestration and tools that connect AI agents with data and services.
• Contribute to architectural and technical decisions, evaluating frameworks and implementation approaches.
• Develop proof-of-concepts to assess new technologies and demonstrate potential solutions.
• Investigate and resolve production issues, optimise performance and reliability.
• Design efficient data processing and integration patterns for large datasets.
• Implement authentication and authorisation mechanisms for secure enterprise apps.
• Support infrastructure deployment, IaC and CI/CD pipeline development.
• Collaborate with stakeholders to define requirements and deliver features.
• Scale applications into robust, maintainable platforms for wider adoption.

Skills

Python development

CI/CD workflows

Problem solving

Collaboration

Tools

AWS

Docker

Terraform

Git

TypeScript

CI/CD

Job description

Holt Executive is seeking a Senior Full Stack Software Engineer to develop data-driven applications, cloud platforms and AI-enabled tools. This hands-on role spans backend services, APIs, frontend interfaces and modern cloud infrastructure.

You will work with Python, AWS (Lambda, ECS/Fargate, S3), Docker, Terraform and Git within CI/CD workflows. In a small, collaborative team, you’ll contribute to architectural decisions, build features and help evolve existing applications into scalable