Senior Python Engineer, Capital Markets Backend

Radley James; New York (NY); On-site; USD 315,000 - 385,000; Full time

Benefits offered by this job

Performance bonus

Comprehensive benefits

Relocation assistance

Job summary

Radley James is partnering with a leading financial technology firm seeking a Senior Software Engineer to design and build high-performance, distributed Python services for capital markets in New York.

You will own critical components across trade processing, real-time market data, and large-scale infrastructure, collaborating with traders, quants and platform users to deliver resilient, scalable solutions.

Qualifications

• 8+ years of professional software engineering experience.
• Strong expertise in Python for backend services.
• Experience in financial services, trading or capital markets.
• Understanding of trade processing and post-trade workflows.

Responsibilities

• Architect and develop scalable backend systems for institutional trading.
• Build Python services handling large market data volumes.
• Design data pipelines for real-time analytics.
• Integrate with exchanges and trading platforms.
• Own core trading infrastructure, improving reliability and performance.
• Collaborate with researchers and traders to deliver fintech solutions.
• Drive engineering best practices and mentorship.
• Ensure systems meet production reliability and performance standards.

Skills

Python

Distributed systems

Backend development

Trading systems

Cloud infrastructure

Tools

PostgreSQL

Kafka

Snowflake

AWS

Job description

Radley James is partnering with a leading financial technology firm seeking a Senior Software Engineer to design and build high-performance, distributed Python services for capital markets in New York.

You will own critical components across trade processing, real-time market data, and large-scale infrastructure, collaborating with traders, quants and platform users to deliver resilient, scalable solutions.