Lead Software Developer

Ncounter; Greater London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading investment firm in Greater London is seeking a skilled Software Developer focused on Python to enhance their Post Trade engineering group. Responsibilities include designing and delivering high-performance components that automate the entire lifecycle of post-trade workflows. Ideal candidates will have significant Python experience, a strong Computer Science background, and a firm grasp of data-intensive services and FIX protocol integration. The role emphasizes reliability, scalability, and engineering excellence.

Qualifications

• 5 years of Python engineering experience in trading or post-trade domains.
• Experience in building data-intensive services.
• Knowledge of trade booking and integration with FIX protocol.

Responsibilities

• Design and deliver components automating post-trade workflows.
• Own production systems and improve reliability.
• Optimize data flows and shape architecture for trading environments.

Skills

Python expertise

PostgreSQL proficiency

Data intensive services

FIX protocol integration

Trade booking

Education

Strong Computer Science background

Tools

Data frame tooling

Job description

Software Developer Post-Trade Automation

Ncounter are supporting a globally recognised systematic investment firm in hiring a Python focused Software Developer to join their Post Trade engineering group. This team builds and operates the pipelines that sit at the heart of post trade processing, powering millions of transactions and ensuring accuracy, timeliness and compliance across global markets.

You will design and deliver high performance components that automate the full lifecycle of post trade workflows, from ingesting transaction feeds through to booking, enrichment, reconciliation and analytics. This is a hands on engineering role where you will own production systems, improve reliability, optimise data flows and help shape the architecture behind one of the most advanced trading environments in the industry.

The environment is deeply technical, collaborative and quality driven, with strong expectations around software engineering standards, data integrity, and scalable distributed design.

Core Requirements

• Strong Computer Science background with 5 years Python engineering in trading or post trade domains
• Proven experience building data intensive services and working with PostgreSQL and data frame tooling
• Background in trade booking and FIX protocol integration
• Ability...