Senior Software Engineer

Harrington Starr; City Of London; On-site; GBP 90,000 - 125,000; Full time

Benefits offered by this job

Competitive salary

Strong benefits package

Great work-life balance

Wellness perks

Team socials

Wellness & healthcare

Job summary

An innovative proprietary trading firm in London is looking for a Senior C# Software Engineer. You will work on greenfield projects and use cutting-edge technology to influence trading systems. The ideal candidate will have a strong background in C# and .NET, alongside experience with database technologies such as SQL Server or Oracle. This position offers a competitive salary and a collaborative culture that promotes creativity and career growth. Excellent communication skills in English are required.

Qualifications

• Strong background in C# and the .NET platform working with the latest versions.
• Database knowledge (SQL Server, Oracle, or equivalent) is essential.
• A degree in Computer Science or related field is required.
• Fluent in English with excellent communication skills.
• Detail-oriented with a drive to deliver quality solutions.

Responsibilities

• Develop and maintain high-performance trading applications in a C#/.NET/SQL Server environment.
• Take ownership of new, greenfield projects, influencing design and implementation from the start.
• Collaborate with a talented team of engineers and researchers.
• Continuously innovate and improve tools, processes, and systems.
• Deliver solutions that contribute to trading success and business growth.

Skills

C# and the .NET platform

Database knowledge (SQL Server, Oracle)

Fluent in English

Attention to detail

Education

Degree in Computer Science or related subject

Tools

SQL Server

Oracle

Job description

Overview

This range is provided by Harrington Starr. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from Harrington Starr

Location

City of London (On-site)

Company and Role

We’re partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# Software Engineer. You’ll work on greenfield projects, cutting-edge technology, and play a key part in shaping systems that directly influence trading performance.

What you’ll enjoy

• Competitive salary with a strong benefits package
• Work on greenfield projects where your ideas genuinely shape the outcome
• Exposure to the latest .NET technologies in a high-performance trading environment
• Clear opportunities for career growth and progression
• Collaborative, non-corporate culture where innovation and creativity are encouraged
• Great work-life balance supported by wellness perks, healthcare, and team socials

Key Requirements

• Strong background in C# and the .NET platform (working with the latest versions)
• Database knowledge (SQL Server, Oracle, or equivalent)
• Degree in Computer Science or related subject
• Fluent in English with excellent communication skills
• Detail-oriented, with a drive to deliver high-quality solutions

Key Responsibilities

• Develop and maintain high-performance trading applications in a C#/.NET/SQL Server environment
• Take ownership of new, greenfield projects, influencing design and implementation from the start
• Collaborate with a talented team of engineers and researchers in a supportive environment
• Continuously innovate and improve tools, processes, and systems
• Deliver solutions that directly contribute to trading success and business growth

How to apply

To apply, please use the link provided or reach out directly to arrange a confidential conversation: [e-mail]