Senior .NET Developer - AI & Intelligent Automation (Health Insurance Platform)

You will work within a Scrum team (3-week sprints), contributing to our existing .NET/Angular platform while leading the design and implementation of AI-centric features and integrations. You will partner closely with our ML engineering and infrastructure teams to leverage our in-house GPU infrastructure and Run.ai platform for model training, fine-tuning, and inference at scale., Core Product Development (.NET / Angular / Messaging)

• Design, build, and maintain core product features using:

• .NET (C#), ASP.NET Core
• Angular
• SQL Server and MongoDB
• RESTful APIs and NServiceBus

• Contribute to application architecture decisions, refactoring initiatives, and shared platform components.
• Ensure new AI features are robust, secure, explainable, and integrated cleanly into the existing product.

AI Capability & Feature Development

• Work with Product Management and domain experts to identify high-value AI use cases, initially focusing on automating processing of claims invoice documents (e.g. OCR, document classification, data extraction, validation workflows).
• Design, implement, and integrate AI services and pipelines, such as Machine learning / rules-based components for classification, anomaly detection, and routing (e.g. flagging potentially incorrect invoices or exceptional cases).
• Fine-tuned language models or specialized inference models deployed on our in-house GPU infrastructure.

User Experience & Workflow Automation

• Work closely with Product and UX to design AI features that give clear benefits to end-users (time saved, errors reduced, fewer clicks).
• Implement workflow automation and orchestration

Do you have experience in REST?, * Strong commercial experience building enterprise applications with: *

• .NET / C#
• ASP.NET Core
• Angular
• SQL Server and MongoDB
• RESTful APIs; NServiceBus or equivalent service bus/messaging platform.

• Demonstrable experience in at least one of:

• Implementing AI/ML-driven features in a production product, or
• Building document processing / intelligent automation workflows (OCR, classification, extraction, validation).

• Familiarity with common AI/automation building blocks such as:

• OCR and document understanding (e.g. cloud services or libraries).
• Entity extraction, text classification, or similar NLP tasks.
• Rule engines, workflow engines, or BPM/orchestration tools.

• Strong understanding of non-functional requirements for AI features:

• Performance and throughput for high-volume processing.
• Data protection, privacy, and access control.
• Auditability, traceability, and explainability for automated decisions.

• Solid grounding in software engineering fundamentals: design patterns, testing strategies (unit/integration), CI/CD concepts, secure development lifecycle., * Product-minded engineer who thinks in terms of user outcomes, not just technology.
• Pragmatic with AI: focused on solving real user problems and automating meaningful work, rather than technology for its own sake.
• Comfortable working in ambiguous problem spaces and iterating quickly based on feedback.

We're Cegedim Insurance Solutions, on a mission to enable health insurers to rapidly add value through our technology solutions. Actisure is our award-winning product which has led us to become a leading worldwide supplier of software to health insurers. It's an extensive platform consisting of Core back office automation, Open API and integration suite and Digital solutions serving customers and all parties in the insurance value chain., Our International Division strives to be a non-hierarchical company, with a friendly, can-do culture where challenging work and talent is recognised and rewarded. We employ c.80 employees mostly based out of our office in Bristol, along with some consultants working in locations around the world from home or on client sites. We have recently moved into a brand new office within the Programme building at The Pithay in central Bristol. The office space has been designed and fitted out specifically to our requirements to ensure a highly functional, flexible and comfortable working environment, whether hot-desking, having stand-ups, or more formal/confidential meetings. There's an NCP car park at the rear of the block and there's great access to public transport routes with bus stops within a few steps of the building, the train station; Bristol Temple Meads is approx. 10-15 walk. There's also secure bike storage and excellent showers to freshen up after a bike ride, gym class or run. We're close to lots of restaurants, coffee shops, gyms and shops as well as being just a short walk from the Castle Park and Harbourside areas. We are a friendly team, with regular social lunch or after-work activities as well as work-related events; town halls or conferences, both in person and online. We have a smart casual dress code.