Senior Software Engineer

Who you are

• Strong commercial experience as a Senior Python Developer / Software Engineer
• Expertise in asynchronous Python and building complex async architectures
• Strong hands‑on experience with:
• FastAPI, Uvicorn, Asyncio, SQLAlchemy, Pydantic, Alembic, Pytest
• WebSocket‑based communication patterns
• REST API design and integration
• Experience delivering in Microsoft Azure environments, including:
• App Service, Key Vault, Azure SQL
• Azure Speech Services, Azure OpenAI
• Storage Accounts, Redis Cache
• Experience operating production systems with structured observability and monitoring
• Ability to engage effectively with customers, including technical workshops and solution design discussions
• Ability to balance both project delivery work and ongoing support responsibilities
• Experience designing or engineering voice‑based user experiences
• Background working with Financial Services or Customer Service organisations
• Exposure to Vue.js or other modern JavaScript frameworks
• Understanding of large‑scale, event‑driven or real‑time transactional systems

What the job involves

• We are looking for a Senior Software Engineer (Python) to join our Software Engineering team within the AI Practice. This role will be instrumental in engineering, enhancing and supporting a real‑time voice application underpinned by Generative AI technologies
• You will contribute across both project delivery and production support, including participation in an out‑of‑hours callout rota
• The role focuses on building complex asynchronous systems using modern Python frameworks, integrating enterprise platforms, and ensuring reliable operation of a mission‑critical solution for a major financial services client
• This role is customer‑facing and will include direct engagement with client technical teams, solution architects and delivery stakeholders
• Design, build and maintain real‑time voice and AI‑enabled applications using Python and modern async frameworks
• Develop and optimise backend microservices using FastAPI, Uvicorn, Asyncio, Pydantic and SQLAlchemy
• Engineer and maintain REST API integrations with external enterprise systems
• Implement observability using OpenTelemetry and Azure Application Insights
• Leverage Microsoft Azure services including App Service, Azure Cache for Redis, Azure Speech Services, Azure OpenAI (PTU), Microsoft SQL, Key Vault and Storage Accounts
• Contribute to CI/CD pipelines using Azure DevOps
• Participate in an out‑of‑hours callout rota to support critical customer operations
• Provide technical guidance to customers, including troubleshooting, solution walkthroughs and implementation support
• Collaborate with cross‑functional Sabio teams across AI, Engineering and Delivery
• Maintain high code quality using Pytest, Alembic migrations and peer review practices

The application process

• This role's hiring manager: Chris Nickson
• Applied
• Talent Team Review
• Initial Interview
• Skills Based Interview
• Final Interview

Benefits

• Pension Scheme
• Remote/Flexible work
• Life insurance
• Private health and dental care
• Cycle to work
• 28 days paid holiday a year- (this includes three Sabio days)
• LinkedIn Learning
• Plus many more! (Benefits are dependant on your base location.)