Software Engineer

Arcus Search; City Of London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading financial services organization in the City of London is seeking a C++ Engineer to enhance market data capabilities. The role involves onboarding data feeds, validating reference data, and collaborating with development teams. Candidates should have a strong background in C++ and familiarity with market data. Experience with C# and Python is beneficial. This position offers a contract opportunity within a dynamic environment.

Qualifications

• Solid background in C++ software engineering, ideally within a financial markets or data-driven environment.
• Experience with market data from exchanges, hedge funds, or providers would be a strong plus.
• Strong analytical mindset, able to interrogate data outputs and spot anomalies.

Responsibilities

• Onboarding market data feeds.
• Mapping and validating reference data, addressing quality issues.
• Running history backfill projects alongside onboarding new markets.
• Collaborating across development and data functions.

Skills

C++ software engineering

Analytical mindset

C# support

Python support

Job description

Overview

We’re working with a leading financial services organisation that is expanding its market data capabilities and looking for a hands-on C++ Engineer to join on a contract basis.

Responsibilities

• Onboarding market data feeds
• Mapping and validating reference data, addressing quality issues, and ensuring data integrity
• Running history backfill projects (around 20 in scope) alongside onboarding ~15 new markets
• Collaborating across development and data functions, with exposure to C#, Python, and related workflows

Qualifications

• Solid background in C++ software engineering, ideally within a financial markets or data-driven environment
• Experience with market data (from exchanges, hedge funds, or providers) would be a strong plus
• Comfortable working with C# and Python in support of C++ (services, tooling, scripts)
• Strong analytical mindset, able to interrogate data outputs, spot anomalies, and validate trade classifications