Mid Level/ Senior Python Developer

TEKsystems; Bromley; Hybrid; GBP 37,000 - 74,000; Full time

Job summary

TEKsystems in Bromley, UK is seeking a Python Developer on a contract, hybrid basis to join a regulatory technology team supporting regulatory reporting platforms within the financial services sector.

You will design and develop scalable Python applications, build data pipelines for millions of daily transactions, and collaborate with stakeholders to translate regulatory requirements into technical solutions.

Qualifications

• Strong Python development experience in professional settings.
• Experience in investment banking, capital markets or financial services.
• Experience building high-volume data processing solutions.
• Knowledge of regulatory reporting systems and transaction data flows.
• API/web application development using Flask or similar frameworks.
• Advanced SQL and database development, ideally Oracle.
• Data analysis and manipulation using Pandas.
• Experience with reconciliation, validation or control frameworks.
• Knowledge of CI/CD and release management.
• Excellent stakeholder engagement with business/regulatory teams.

Responsibilities

• Design, develop and maintain enterprise-grade Python applications for regulatory reporting and compliance functions.
• Translate regulatory requirements with Business Analysts and Compliance into technical solutions.
• Build scalable data processing pipelines for millions of daily transactions.
• Perform data analysis, investigations and root-cause assessments of reporting breaches.
• Develop reconciliation and validation frameworks to ensure data integrity.
• Support remediation via historical replay and data reconstruction capabilities.
• Drive performance, reliability and auditability improvements across systems.
• Manage software releases through full development lifecycle (planning, testing, deployment, support).
• Collaborate with cross-functional teams on regulatory change programmes and platform enhancements.

Tools

Python

Flask

Pandas

Oracle Database

Elasticsearch

Quartz Scheduler

Git

CI/CD Tooling

Job description

Job Title: Python Developer (Contract, Hybrid)

Job Description

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