Python Developer

Overview Phi Partners is the European market leader for capital markets technology services providing technology & quant services, solutions, and expertise to buy-side and sell-side financial institutions including some of the world’s largest investment banks, hedge funds and asset management firms. Founded in 2004 and headquartered in London, Phi has a presence in all major continents. Our niche focus on Quantitative and Front Office Technology has been a differentiator and gateway into the world’s best financial institutions.

Phi Partners has nearshore Centres-of-Excellence which are specialized in respective ‘Lines of Business’ (LoBs). Our latest Budapest Centre-of-Excellence, houses our Quant, Front Office & Risk Technology Services teams. Our services include front office pricing, risk engineering as well as quant model development, model integration and model validation.

Consultants in this location have the opportunity to be mentored by well-known industry-leading Front Office, Risk & Quantitative experts, and work for a variety of top-tier clients including the world’s largest Investment Banks, Asset Management Companies, and market-leading Hedge Funds.

About The Practice Phi

Partners is one of the largest consultancies specializing FORTS, with a dedicated team of over 175 consultants spread across multiple locations. Our team is distinguished by deep expertise in front-office and risk technology solutions, empowering top-tier financial institutions to optimize their trading and risk management capabilities.

At Phi

Partners, we are committed to a collaborative, high-performance culture where professionals work together to deliver complex front-office solutions to elite clients.We specialize in the end-to-end implementation of front-office and risk platforms, from initial requirements gathering to post-go-live support, ensuring that our clients are fully supported throughout the platform lifecycle. We focus on custom development and configuration, creating solutions that address unique client needs and regulatory requirements in real-time trading and risk management. Additionally, we conduct extensive training and knowledge transfer sessions, ensuring client teams are equipped to maximize the value of their technology investments.

Key Responsibilities We are seeking a hands-on Python Engineer with a strong object-oriented programming foundation and experience in C++, C#, or Java. You will develop robust, production-grade services that integrate AI and data pipelines into trading systems. This is not a research role but an engineering-heavy position with a focus on speed, reliability, and scalability – all in a fast-paced and dynamic environment with shifting priorities.

• Design and build Python-based services and APIs for AI-enabled applications
• Apply strong OOP principles to ensure maintainable, scalable software architecture
• Develop integration layers connecting real-time data streams, trading workflows, and AI components
• Work on deployment pipelines using CI/CD practices; containerization experience is preferred
• Cooperate with product managers, engineers and business stakeholders to deliver rapid iterations in an Agile setup The Ideal candidate - Proven experience in Python development for complex, production-grade systems
• Strong object-oriented programming background in C++, C#, or Java
• Familiarity with APIs, microservices, and messaging systems in distributed architectures
• Exposure to DevOps practices - CI/CD pipelines, Docker (Kubernetes a plus)
• Ability to adapt to dynamic environments and deliver under tight deadlines
• Experience in financial markets or real-time platforms
• Knowledge of AI/ML concepts and libraries (e.g., Hugging Face, PyTorch, TensorFlow)
• Cloud experience (AWS, Azure) and container orchestration