We’re establishing a brand-new engineering squad to support rising demand for new services, integrations, and AI-focused capabilities. As a mid-level Software Engineer, you will help shape how this new squad operates, collaborates, and delivers outcomes from day one. What It Really Feels Like Here We are a high-accountability, high-performing, fast-paced engineering function. Our ways of working prioritise rapid experimentation and rapid learning we fail early, learn fast, and iterate quickly. You’ll thrive here if you enjoy: • Clear ownership and end-to-end responsibility • A pace that keeps you engaged and energised • Direct, transparent communication • Solving problems quickly without unnecessary process • Working in an environment where improvement never stops We protect focus time, reduce meetings to the essentials, and build a psychologically safe space where problems are surfaced early so they can be fixed early. Hybrid role - 3 days in office 2 days at home Key Responsibilities • Design, build, and maintain scalable services using Python (FastAPI) hosted on AWS. • Develop and integrate AI-powered services, connecting with LLMs, vector databases, or ML models to extend product capabilities. • Translate business and technical needs into well-architected, production-ready solutions delivered at pace. • Define and manage infrastructure as code using the AWS Cloud Development Kit (CDK) for secure, automated deployments. • Implement observability and monitoring using AWS CloudWatch, X-Ray, and related tooling to ensure service reliability. • Develop CI/CD pipelines using GitHub Actions, Azure DevOps, or equivalent to enable automated testing and continuous delivery. • Collaborate with cross-functional teams (platform, AI, product, and data) to design and integrate service-oriented solutions. • Ensure code quality and reliability through unit, integration, and contract testing, code reviews, and best practices. • Contribute to reusable frameworks and libraries, helping accelerate development across the wider engineering organisation. • Champion a “build fast, build right” mindset, delivering services that are production-grade from day one. Must Have • Programming in C# OR .NET Sage Benefits • Competitive base salary and commission structure • Comprehensive health, dental and vision coverage • Work away scheme for up to 10 weeks a year • On-going training and professional development • Paid 5 days yearly to volunteer through our Sage Foundation • Flexible work patterns and hybrid working