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# Senior Software Engineer C# .NET

- **Company:** Halian .
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** .NET Framework, LTE (Telecommunication), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Microsoft Azure, Business Systems, C Sharp (Programming Language), Cloud Engineering, Data as a Services, Data Integration, Cursor, DevOps, Python (Programming Language), Standard Sql, Software Engineering, GitHub Copilot, Snowflake, Claude, Terraform, GPT, Data Pipelines
- **Published:** October 23, 2026
- **Apply:** https://www.totaljobs.com/job/senior-software-engineer-c-net/halian-technology-limited-job108226216

## About the Role

* Strong commercial experience with C# and .NET
 * Hands-on Snowflake experience
 * Strong SQL and data integration expertise
 * Financial Services experience
 * Experience building scalable data solutions
 * Excellent stakeholder engagement skills

Preferred Skills

 * Asset Management, Hedge Fund or Front Office Banking experience
 * Portfolio, Trade, Risk or Market Data exposure
 * Azure or AWS
 * Terraform
 * DevOps and CI/CD practices
 * Python
 * Greenfield project delivery
 * Modern Engineering Mindset

We're particularly interested in engineers who actively leverage AI tools such as GitHub Copilot, ChatGPT, Claude, Cursor or similar to improve productivity, automate workflows and accelerate software delivery. This is not an AI Engineering role, but candidates should be comfortable using modern AI-assisted development practices in their day-to-day work.

## Description

Senior C# / Snowflake Engineer London | 9-12 Month Contract 3-4 Days on a strategic greenfield data platform programme and are looking for a Senior C# / Snowflake Engineer to join a highly technical team delivering a business-critical initiative. You'll play a key role in building a modern Snowflake-based platform that makes portfolio, trade and investment data more accessible across the business and to leading hedge fund clients. This is not a traditional developer role. We're looking for an engineer who combines strong software engineering expertise with a modern data mindset, cloud-native thinking, and a passion for improving delivery through automation and AI tooling., * Developing and enhancing applications using C# and .NET

 * Building integrations between business systems and Snowflake
 * Designing data services, APIs and scalable data pipelines
 * Working with complex financial datasets including portfolio, trade and market data
 * Collaborating with technology teams, business stakeholders and investment professionals
 * Contributing to the long-term evolution of a strategic data platform