Python Core Developer – Middle Office – London

Oxford Knight; London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A fintech company in London is seeking a Core Developer to build an automated trade reconciliation system. The role requires strong Python skills and an understanding of Linux, working in a collaborative environment alongside senior tech leaders. The successful candidate will handle a high volume of transactions, making an impact in a transformative market.

Qualifications

• 2+ years’ experience with Python and SQL databases.
• Understanding of Linux.
• Involvement with reconciliation, risk, middle office systems is desirable.

Responsibilities

• Help build an automated trade reconciliation system.
• Work closely with senior members, including the CTO.
• Reconcile up to 100M transactions a day.

Skills

Python

SQL

Linux

Interpersonal skills

Understanding of reconciliation

Job description

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Client:

Oxford Knight

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

f707d466a865

Job Views:

22

Posted:

12.08.2025

Expiry Date:

26.09.2025

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Job Description:

Company

This fintech is an international global algorithmic market maker in digital assets. They aim to transform Crypto Markets by offering liquidity to trading platforms and exchange. So essentially ‘HFT meets Crypto’. Trading more than $5B+/day across dozens of different trading platforms.

Their meritocratic working environment allows you to be judged only on what you deliver – providing great accountability and tangible impacts. Complementary to this it’s an interesting role, as it culturally combines all the benefits of expert tech and trading used in traditional financial markets and the fast-paced nature of a tech start-up.

Role

As a Core Developer, you will help in building out an automated trade reconciliation system. This greenfield project allows you to work closely with senior members, such as the CTO. Very high performance reconciling up to 100M transactions a day. All you need is strong python skills – they are a Linux-based company, and the solution will be built in Python and should “talk to” C++ stack.

Requirements:

• 2+ years’ experience with Python and SQL databases.
• Understanding of Linux.
• Involvement with reconciliation, risk, middle office systems is desirable.
• Passionate about tech and financial markets.
• Great interpersonal skills that would flourish in an intimate collaborative environment.
• Smart central London office.

Tier-2 visa sponsorship is available.

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.