Mid Level/ Senior Python Developer

Job Title: Python Developer (Contract, Hybrid)

Job Description

Overview

We are seeking a Python Developer to join a high-performing regulatory technology team within a leading investment bank. The successful candidate will design and develop scalable solutions supporting regulatory reporting platforms, ensuring compliance with evolving financial regulations while processing high volumes of transaction data.

This role

combines hands-on software engineering, data analysis, platform enhancement, and close collaboration with regulatory and business stakeholders.

Key Responsibilities

Design, develop and maintain enterprise-grade Python applications supporting regulatory reporting and compliance functions. Partner with Business Analysts, Compliance teams and Transaction Reporting SMEs to translate complex regulatory requirements into technical solutions. Build highly scalable data processing pipelines capable of handling millions of daily financial transactions. Conduct detailed data analysis, investigations, and root-cause assessments relating to reporting breaches and regulatory inquiries. Develop reconciliation and validation frameworks to ensure reporting accuracy and data integrity. Support remediation initiatives through the design of historical replay and data reconstruction capabilities. Drive system enhancements focused on performance, reliability, auditability and operational resilience. Manage and support software releases through the full development lifecycle, including testing, deployment and production support. Collaborate with cross-functional technology teams to deliver regulatory change programmes and strategic platform improvements.Required Skills & Experience

Strong commercial Experience developing applications in Python. Proven Experience within investment banking, capital markets or financial services environments. Experience building scalable, high-volume data processing solutions. Strong understanding of transaction processing, financial data flows and regulatory reporting systems. Experience developing APIs and web applications using Flask or similar Python frameworks. Advanced SQL and database development Experience, ideally with Oracle Database. Strong data analysis and manipulation skills using Pandas. Experience developing reconciliation, validation or control frameworks. Knowledge of software engineering best practices, CI/CD and release management. Excellent stakeholder engagement skills, with Experience working directly with business and regulatory reporting teams.Desirable Experience

Experience with transaction reporting regulations such as MiFID II, EMIR, SFTR, or similar. Experience with Elasticsearch. Knowledge of event-driven architectures and data replay/reprocessing frameworks. Experience with scheduling and orchestration tools such as Quartz. Exposure to regulatory remediation programmes and audit-driven development practices. Understanding of parallel processing and distributed computing techniques.Technical Stack

Python Flask Pandas Oracle Database Elasticsearch Quartz Scheduler Git CI/CD Tooling

Location

Bromley, UK

Rate/Salary

200.00 - 400.00 GBP Daily

Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. (phone number removed). Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at (url removed)> To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to (url removed)> We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the "Contacting Us" section of our Online Privacy Notice at (url removed)/en-gb/privacy-notices for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield