Job Specifications
Role title: Senior Python Developer
Location: London, UK and/or Krakow, Poland
Contract: full time - Long term engagement
Start date: January / February 2026
Overview:
We are seeking a Senior Python Developer with extensive experience in investment banking to join our client’s technology and quantitative development team. The successful candidate will play a key role in designing, developing, and maintaining high-performance applications supporting trading, risk, and analytics functions.
Key Responsibilities:
Design, develop, and optimise scalable Python-based applications for front-office and risk teams.
Collaborate with quantitative analysts, traders, and other developers to deliver business-critical solutions.
Enhance existing systems to improve performance, automation, and integration with trading platforms.
Contribute to system architecture, testing, and continuous deployment processes.
Requirements:
Proven experience as a Python Developer within investment banking, hedge funds, or financial markets.
Strong knowledge of object-oriented programming, design patterns, and data structures.
Experience with SQL and familiarity with databases such as Oracle or PostgreSQL.
Exposure to C++ or Java is a plus.
Solid understanding of front-office trading environments, risk systems, or quantitative workflows.
Strong communication skills and ability to collaborate in fast-paced, client-facing environments.
WHO WE ARE
Quanteam Group is a Consulting firm specialized in the Capital Markets industry, in Paris, London, Krakow, Brussels, New York and North Africa.
Since 2007, our 800 consultants provide major clients (Corporate & Investment Banks, Asset Managers, Hedge Funds, Brokers and Insurance Companies) with expertise in several projects such as Financial Engineering, Quantitative Research, Regulatory Implementation, IT Transformation & Innovation.
The firm mainly takes part in:
Business consulting: Quantitative research, Risk management (e.g. Market risk, credit risk, counterparty risk), Banking regulations (e.g. Basel III, Solvency II, FATCA, EMIR, MiFID), Pricing & Valuation, Organizational Transformation & Process Improvement.
IT & Information systems consulting: Business Analysis, Project Management, Change management, Front Office Support (functional and technical), Development (e.g C++, Python, C#, Java, VBA), Financial Software (e.g. Sophis, Murex, Summit, Calypso), IT Transformation & Innovation.
As part of Quanteam Group, Quanteam UK & PL has today more than 80 consultants, working for major Capital Markets institutions in London and Krakow.
About the Company
Welcome to Quanteam UK – Your trusted partner in consulting dedicated to financial services Since 2010, Quanteam UK has been providing its expertise in consulting to the UK’s Financial Services, Fintechs and Insurance sectors. We collaborate with top-tier institutions—including investment and corporate banks, asset managers, hedge funds, brokers, wealth managers, and insurers—to deliver transformative and innovative solutions. Our core expertise At Quanteam UK, we bring deep consultancy expertise across five critical domain...
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