Back-End Engineer EMEA - Reconciliation & External Integrations (F/M/D)

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Back-End Engineer EMEA – Reconciliation & External Integrations (F/M/D), London

Client:

Flowdesk

Location:

London, United Kingdom

Job Category:

Other

EU work permit required:

Yes

Job Reference:

3005ff5a56f3

Job Views:

3

Posted:

24.04.2025

Expiry Date:

08.06.2025

Job Description:

Flowdesk is building the financial infrastructure for the crypto economy. Our UTL (Universal Transaction Ledger) system is at the core of our real-time risk management and financial operations.

We are looking for a Software Engineer to develop, optimize, and maintain Flowdesk’s real-time booking and position management system. This system is responsible for computing PnL, exposure, and unit cost calculations across multiple trading activities and asset classes.

You will work on a high-performance backend designed to support real-time financial processing while ensuring data integrity and reconciliation across multiple venues.

Your Mission

• Build and maintain Flowdesk’s reconciliation service to ensure data accuracy and financial integrity.
• Work with financial and operations teams to implement automated reconciliation workflows.
• Ensure auditability of financial transactions through robust logging and reporting.

External Integrations

• Develop APIs and messaging solutions for external counterparty and venue integrations.
• Ensure smooth data exchange with external financial entities.
• Optimize low-latency, high-accuracy message queues for seamless communication.

Data Accuracy & Monitoring

• Design real-time monitoring solutions for transaction and balance discrepancies.
• Work with trading and operations teams to ensure consistency in PnL, exposure, and unit cost calculations.
• Build self-healing mechanisms for data inconsistencies and discrepancies.
• Take full ownership of reconciliation and external integrations.
• Work closely with trading, finance, and engineering teams to drive system improvements.

Requirements

• 5+ years of experience in financial engineering, software development, or trading systems.
• Financial reconciliation experience (preferably in trading or prime brokerage).
• Strong understanding of PnL, exposure, and financial data modeling.
• Proficiency in Rust (or willingness to upskill).
• Experience with message queues and event-driven architectures.

Nice-to-have skills

• Experience working in a crypto trading environment.
• Background in prime brokerage or middle-office systems.

Skills And Personality

• Professional proficiency in English, French is a plus.
• Interest in algorithmic trading.
• Interest in financial/capital markets.
• Open-minded and curious.
• Highly innovative, flexible and self-directed.
• Software Craftsmanship mindset.

Are you interested in this job but feel you haven\’t ticked all the boxes? Don\’t hesitate to apply and tell us in the cover letter section why we should meet!

Here\’s What You Can Expect If You Apply

• HR interview (30\’)
• Technical test
• First Technical interview (90\’)
• Second Technical Interview (60\’)
• Leadership Interview (30\’)
• Culture Fit Interview (45\’)

On the agenda, discussions rather than trick questions! These moments of exchange will allow you to understand how Flowdesk works and its values. But they are also (and above all) an opportunity for you to present your career path and your expectations for your next job!

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