Senior Software Engineer (Fintech)

TL;DR

Senior Software Engineer (Fintech): Building and scaling high-performance trading infrastructure for the Core Exchange team with an accent on low-latency API design and data reliability. Focus on optimizing REST, FIX, and WebSocket services to support mission-critical trading systems for active global users.

Location: Ljubljana, Slovenia (Onsite)

Company

Robinhood is a financial services company on a mission to democratize finance for all by building accessible and innovative trading tools.

What you will do

• Design and build performant, reliable, and scalable services for the API trading ecosystem.
• Optimize low-latency data flows and trading paths to ensure precision under pressure.
• Own and evolve core components of REST, FIX, and WebSocket APIs.
• Collaborate with product, infrastructure, and frontend teams to deliver seamless API solutions.
• Participate in on-call rotations to support mission-critical systems.
• Continuously measure, monitor, and improve the trading API experience.

Requirements

• 5-8+ years of backend engineering experience.
• Proven experience designing high-performance systems with low-latency and high-throughput requirements.
• Solid database experience with SQL (MySQL) and/or NoSQL (DynamoDB).
• Familiarity with cloud infrastructure, specifically AWS.
• Experience working on or with production-grade trading APIs or high-volume systems.
• Strong communication skills and a customer-first mindset.

Nice to have

• Experience building or operating automated trading bots or systems.
• Hands-on experience with the FIX protocol and order management systems.
• Knowledge of WebSockets, streaming market data, or real-time API performance tuning.
• Passion for financial markets and tools for professional traders.

Culture & Benefits

• Performance-driven compensation with impact-based multipliers and bonus programs.
• Top-tier benefits including supplemental health insurance and mental health support.
• Flexible lifestyle wallet for wellness, childcare, and learning expenses.
• Comprehensive time-off policies including parental leave and volunteer time.
• Exceptional office experience with catered meals and events.
• Monthly commuter stipend for in-office support.