Senior Software Engineer

Optiver is seeking Software Engineers specializing in the US cash equities and US ETF markets to help lead our continued rapid growth across cash equities. Our Software Engineers lead large technical projects, help set the direction for our trading infrastructure, and leverage technology to enable business success.

Our cash equities engineering team is building out systems that must ingest and react to market data feeds from major US exchanges in microseconds or less, efficiently price and hedge positions of single stocks and ETFs and execute orders with extremely low error tolerance. We continually refine, store, and analyze terabytes of data produced by market activity and our trading systems.

Our user interfaces must present coherent, responsive real-time visualizations of market activity and system performance while providing intuitive control of a highly complex system. Our core systems must provide a stable, performant, and trusted foundation on which our systems are built.

In this role you will be building out functionality across simulation, research, and production systems. Specifically, you will:

• Help establish the vision and technical direction for major cash equities trading initiatives
• Design, develop, support, and maintain large portions of our low-latency equities trading infrastructure, including order management systems (OMS) and execution management systems (EMS)
• Contribute to our pricing, research and trading models that power our market‑making and proprietary trading strategies in US equities and US ETFs
• Develop a deep understanding of exchange‑specific protocols, order book dynamics and exchanges connectivity
• Optimize data processing pipelines to handle market data from multiple exchanges at scale while continuously improving execution speed and system performance
• Work closely with FPGA engineers to leverage hardware acceleration for ultra‑low‑latency execution and explore novel ways to integrate FPGAs with software‑driven trading infrastructure
• Collaborate deeply with traders, engineers, and researchers to help us evolve our execution logic and market impact models

At Optiver we pride ourselves on being real engineers, not just coders. Our engineers work closely with traders to identify the business problems we face and determine how they should be solved. We apply a disciplined and scientific approach. We engineer simple, well‑architected solutions that meet the dynamic needs of our traders. Our passion is to solve problems which really matter to the business, and we take pride in the quality of our solutions.

You’ll join a culture of collaboration and excellence, where you’ll be surrounded by curious thinkers and creative problem solvers. Motivated by a passion for continuous improvement, you’ll thrive in a supportive, high‑performing environment alongside talented colleagues, working collectively to tackle the toughest problems in the financial markets.

In addition, you’ll receive:

• The opportunity to work alongside best‑in‑class professionals from over 40 different countries
• Ownership over initiatives that directly solve business problems
• 401(k) match up to 50% and fully paid health insurance
• Extensive office perks, including breakfast, lunch and snacks, regular social events, clubs, sporting leagues and more

• Familiarity with the market microstructure of the US Equities and/or US ETF markets
• Strong engineering instincts and a deep understanding of computer science fundamentals
• Programming experience across C++ or C with other object‑oriented languages also considered
• Experience building low‑latency trading systems on a large scale including across market data ingestion, order routing and execution performance
• Experience with exchange connectivity, order matching, and execution logic for major venues
• Experience optimizing high‑throughput systems that must process and react in real‑time to streams of market data
• Familiarity with building and integrating FPGA‑assisted trading systems
• Innovative, big‑picture thinking grounded in real‑world pragmatism
• Readiness to set technical direction, promote strong engineering principles and…