Contract .NET Developer - Energy Trading

JR United Kingdom; Sheffield; On-site; GBP 150,000 - 175,000; Full time

Job summary

A leading company in Energy Trading is seeking a Contract .NET Developer in Sheffield to design and deliver high-quality software solutions. The ideal candidate will have strong expertise in C# .NET and the ability to mentor juniors, working closely with stakeholders. This role offers £750/day, outside IR35, in a dynamic trading environment demanding innovative technical solutions.

Qualifications

• Strong experience in enterprise development using C# .NET and WebAPI in Agile.
• Knowledge of scalable architecture and best practices required.
• Prior experience in trading or data-intensive environments preferred.

Responsibilities

• Design and deliver high-quality C# .NET solutions.
• Mentor junior developers and foster continuous learning.
• Collaborate with analysts to translate business needs into technical solutions.

Skills

C# .NET

Agile

Problem-solving

SQL

Design Patterns

SOLID principles

Infrastructure as Code

Tools

Azure DevOps

MongoDB

Terraform

Vue.js

Angular

Blazor

RabbitMQ

Kafka

Job description

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Contract .NET Developer - Energy Trading, sheffield, south yorkshire

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Client:

Oliver Bernard

Location:

sheffield, south yorkshire, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

2

Posted:

06.06.2025

Expiry Date:

21.07.2025

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Job Description:

Contract .NET Developer – Energy Trading - £750/day – OUTSIDE IR35

We’re looking for an experienced .NET Developer to play a crucial role in designing, developing, and delivering high-quality, test-driven object-oriented software that supports the full trade lifecycle. You’ll work across a diverse portfolio of applications and technology stacks, collaborating closely with Technical Leads, Architects, and key business stakeholders to deliver robust and scalable solutions.

Key Responsibilities

• Design, develop, and deliver high-quality C# .NET solutions in a complex trading or data-driven environment.
• Work closely with Vertical Leads (Delivery, Technical, QA, Architecture, and Functional) to ensure seamless software delivery.
• Participate in code reviews to drive best practices and maintain development standards.
• Support and mentor junior developers, fostering a culture of continuous learning.
• Optimise performance and minimise technical debt by driving architectural consistency and adhering to best practices.
• Collaborate with business analysts and stakeholders to translate business needs into technical solutions.
• Contribute to the software development roadmap, advocating for best-in-class development practices.

What You’ll Need

• Strong experience in enterprise development using C# .NET, WebAPI and working within an Agile environment.
• Knowledge of Design Patterns, SOLID principles, and scalable architecture best practices.
• Proficiency with SQL databases (Microsoft SQL Server preferred) – experience with MongoDB is a plus.
• Familiarity with modern web UI frameworks (Vue.js, Angular, Blazor) is advantageous.
• Experience with Azure DevOps, CI/CD pipelines, and Infrastructure as Code (Terraform) is a plus.
• Exposure to messaging patterns (RabbitMQ, Kafka) and authentication methods like OAuth2 is beneficial.
• A strong problem-solver who can work independently while effectively collaborating with cross-functional teams.
• Prior experience in a trading, financial services, or data-intensive environment is a major advantage.

Contract .NET Developer – Energy Trading - £750/day – OUTSIDE IR35