Senior Software Engineer, Core Exchange

About the team + role

We are building an elite team, applying frontier technologies to the world’s biggest financial problems. We’re looking for bold thinkers. Sharp problem-solvers. Builders who are motivated to make a meaningful impact. Robinhood isn’t a place for complacency, it’s where ambitious people do the best work of their careers. We’re a high-performing, fast-moving team with ethics at the center of everything we do. Expectations are high, and so are the rewards!

The Core Exchange team is responsible for building and maintaining trading interfaces including REST APIs, FIX APIs, WebSockets, and market data services. The team focuses on delivering fast, reliable, and accurate trading experiences for API users. You will work closely with infrastructure, product, and frontend teams to ensure trading systems meet strict performance and reliability expectations while supporting a global user base.

As a Senior Software Engineer (IC5), you will design and scale systems that power trading infrastructure used by sophisticated clients. You will focus on improving latency, system reliability, and data accuracy across critical trading paths. This role involves working on core API components and optimizing performance under high-throughput conditions, while contributing to system design decisions that directly impact active traders worldwide!

This role is based in our Slovenia office, with in-person attendance expected at least 2 days per week.

At Robinhood, we believe in the power of in-person work to accelerate progress, spark innovation, and strengthen community. Our office experience is intentional, energizing, and designed to fully support high-performing teams.

Applications for this role will be accepted through 6/1/2026.

Requires participation in an on-call rotation to support business needs.

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What you’ll do

● Design and build reliable, scalable services that support API-based trading systems
● Improve latency and throughput across trading data flows while maintaining data accuracy
● Own and enhance core components of REST, FIX, and WebSocket APIs
● Collaborate with product, infrastructure, and frontend teams to deliver cohesive API solutions
● Monitor system performance and implement improvements based on measurable system behavior

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What you bring

● You have 5+ years of backend engineering experience
● You have experience building high-performance systems with low-latency and high-throughput requirements
● You are familiar with cloud infrastructure, including AWS services
● You have experience working with SQL (e.g., MySQL) and/or NoSQL databases (e.g., DynamoDB)
● You have experience working with production s