Senior Backend Engineer (Finance/FinTech)

Role Overview

We are seeking a highly skilled Senior Backend Engineering Lead to work closely with our CTO in architecting and optimizing the backend infrastructure of our trading platform. This is a pivotal role where you will have immediate ownership of our financial data processing systems, broker integrations, and real-time market analysis infrastructure.

Responsibilities

• Collaborate directly with the CTO on architectural decisions and technical strategy for the trading platform.
• Take full ownership of backend architecture, making independent technology choices to optimize infrastructure.
• Architect scalable data pipelines for processing multi-asset market data with sub-second response times.
• Optimize systems to handle over 150 trading strategies with real-time backtesting and execution.
• Design systems for correlation analysis of complex multi-asset relationships.
• Integrate with major broker APIs like Alpaca, Interactive Brokers, and Tradier for live trading execution.
• Build normalized trading interfaces for stocks, crypto, forex, and options.
• Implement robust error handling and transaction integrity for trading operations.
• Transform monolithic components into a scalable microservices architecture.
• Design event-driven systems for real-time market sentiment analysis and AI model execution.
• Optimize multi-database architecture (DynamoDB, MongoDB, Redis) for financial workloads.
• Implement audit trails and compliance logging to meet fintech regulatory requirements.
• Develop monitoring and alerting systems aligned with financial-grade service level agreements.
• Ensure secure data handling and processing for sensitive financial information.

Required Skills

• 8+ years of backend engineering experience, with at least 3 years in fintech or financial services.
• Hands-on experience with financial market data integration, using APIs such as TwelveData, Polygon.io, FactSet, etc.
• Proficiency in real-time data processing, including WebSockets and streaming architectures.
• Practical experience with broker API integration and financial data normalization.
• Expertise in AWS services like Lambda, API Gateway, and DynamoDB optimization for financial workloads.
• Strong skills in backend languages such as Node.js/TypeScript and Python.
• Experience with multi-database architecture and financial data modeling.
• Proficient in real-time technologies like WebSockets, Server-Sent Events, and Redis.
• Skilled in designing RESTful and GraphQL APIs optimized for trading platforms.

Nice to Have

• Experience in trading platform or broker integration architecture.
• Knowledge of financial compliance, including FINRA and SEC requirements.
• Experience with high-frequency data processing and optimization.
• Familiarity with mobile API optimization for React Native trading applications.