Software Engineer

CipherTek Recruitment; Remote; GBP 100,000 - 125,000; Full time

Job summary

A leading recruitment company is seeking an Expert .NET Developer for a 12-month contract involving modernising cross-asset trading systems. This role offers flexible remote work, focusing on database modernization and performance optimisation. Ideal candidates will have deep knowledge of .NET 8 and .NET 4.8, strong SQL Server skills, experience in low-latency applications, and attention to detail, especially within financial environments. Competitive rates up to £700/day are available.

Qualifications

• Deep knowledge of .NET 8 and .NET 4.8.
• Strong fundamentals in querying, table design, and ETL processing.
• Experience in low-latency, data-driven applications.

Responsibilities

• Lead initiatives on DB modernisation and performance optimisation.
• Archive legacy data from key tables with precision.
• Develop frameworks and tooling for real-time monitoring.

Skills

Expert .NET Developer

SQL Server Proficiency

ADO.Net Expertise

Async & Multithreading Mastery

Attention to Detail

Previous experience in the finance industry

Job description

Role: Expert .NET Developer – Cross Asset Trading System

Location: Very Flexible. Can offer Remote with occasional travel to London City offices

Contract: 12 months

Rate: Up to £700/day

About the Role:

We are partnering with a leading investment bank on an ambitious programme to modernise and enhance their cross-asset trading systems. This is a technically challenging, hands‑on role, ideal for an expert .NET developer with a strong SQL Server background and experience working in financial environments.

You will be joining a highly skilled team focused on performance, reliability, and scalability, tackling complex issues in real‑time, data‑driven applications. This is purely a tech‑heavy role—business knowledge is helpful but not required.

What You’ll Be Doing:

• Leading initiatives on DB modernisation and performance optimisation
• Archiving legacy data from key tables with precision to ensure smooth migrations
• Redesigning and refactoring high‑activity tables to improve performance and maintainability
• Developing frameworks and tooling for real‑time monitoring of trading systems
• Modernising and upgrading legacy codebases, driving best practices in .NET development

What We’re Looking For:

• Expert .NET Developer: Deep knowledge of .NET 8 and .NET 4.8
• SQL Server Proficiency: Strong fundamentals in querying, table design, and ETL processing large datasets (performance tuning not required)
• ADO.Net Expertise: Familiarity with EntityFramework or other ORMs is a plus, but not essential
• Async & Multithreading Mastery: Experience in low‑latency, data‑driven applications
• Attention to Detail: Ability to spot rare, critical issues before they reach production
• Previous experience in the finance industry, ideally in trading systems

Why This Role Is Exciting:

• Work remotely while tackling cutting‑edge technical challenges
• Collaborate with a high‑performing team on a strategic, high‑impact programme
• Influence system design, architecture, and long‑term performance improvements
• Competitive daily rates up to £700

If you’re a highly skilled .NET developer who thrives in challenging, high‑stakes environments and loves working with complex, real‑time systems, this is the perfect opportunity to make an impact.