Senior Software Engineer - Interim

Software Engineer – Securities Lending Platform

London | TEMP / INTERIM | Junior / Mid-Level | Hybrid

We are recruiting a Software Engineer to join a growing technology team building a new real-time, event-driven trading platform covering securities lending, repo and derivatives.

This is a genuine software engineering role with a particular focus on trade lifecycle, settlement connectivity and workflow automation.

You will work across Java and Python development, integrations and event-driven processing, gaining exposure to the full lifecycle of a modern financial-markets platform.

The platform has two core objectives:

• Workflow automation – streamlining reconciliation, risk management, reporting and settlement processes
• Front-to-back integration – consolidating the trading lifecycle into a unified platform

What you'll be doing

• Developing Java server-side and UI components
• Building Python ETL and automation pipelines
• Developing integrations with external vendors and financial systems
• Helping build connectivity into settlement and post-trade infrastructure
• Supporting automated trade and settlement workflows, including T+1 processing
• Working with APIs, messaging technologies and data feeds
• Developing event-driven components using Kafka
• Working with traders, operations and other engineers to deliver new functionality
• Testing, troubleshooting and improving production applications
• Contributing to the ongoing design of a new platform being built from the ground up

Technology

You may be an established mid-level developer or a strong junior engineer ready to take on more responsibility.

We are looking for:

• Good commercial knowledge of Java and/or Python
• Java is preferred, although strong Python developers with a solid Java foundation will also be considered
• Practical experience with relational databases and SQL
• Comfortable working with Linux
• Good software-development fundamentals
• Strong problem-solving skills
• Good written and verbal communication

Experience with any of the following would be beneficial:

• APIs and external-system integrations
• Kafka or other messaging technologies
• AWS or another major cloud environment
• SWIFT or settlement connectivity
• Trade processing or post-trade technology
• Repo
• Capital markets

Financial-markets experience is useful but not essential if you have strong software-engineering fundamentals.

This is a strong opportunity for an ambitious engineer to join a growing team at an early stage of a significant new platform build.

You’ll receive mentoring from experienced engineers while gaining exposure to modern technologies, financial markets and the complete development lifecycle.

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