Platform Engineer, Development

About IEX

At IEX, we’re passionate about building technology that moves industries forward. Our story began when we built a stock exchange designed to deliver high-performance results for all investors. Our belief is that technology should level the playing field so that opportunity is equitable. We are applying what we learned from building a high-performance stock exchange to build technology that solves for complexity and accelerates growth in other areas. We aspire to build a trusted, disciplined, and diversified business. Our goal is to build transformative technology without ever compromising our integrity - and we’re just getting started!

About the Role

We’re looking for a Platform Engineer, Development to design and build high-performance tooling and infrastructure that supports QA testing, simulation environments, and core developer workflows. This role is critical to improving automation, scalability, and reliability across engineering, and will play a key part in how teams build, test, and deploy software.

You’ll contribute directly to the platform’s technical foundation — writing clean, efficient code, improving internal tooling, and enhancing the developer experience. This is a hands-on role for a strong engineer who enjoys solving deep technical problems, debugging complex systems, and collaborating with teams across the organization.

What You’ll Do

• Design, build, and maintain platform tooling for QA testing, simulation, and deployment workflows.
• Develop performant, maintainable systems primarily in Java and C++.
• Automate deployment processes and streamline tooling for Linux environments.
• Partner with QA, Data, and Development teams to improve testing coverage, reliability, and developer efficiency.
• Handle straightforward bug fixes and contribute to platform-level codebases to ensure stability and usability.
• Evaluate new technologies and approaches to optimize platform performance and internal developer experience.
• Create clear, reproducible documentation and help establish platform engineering best practices.
• Collaborate closely with downstream teams to gather requirements, clarify needs, and support platform adoption.

What We’re Looking For

• Strong programming skills in Java and/or C++.
• Demonstrated experience building engineering tools or internal platforms — not just using them.
• Strong Linux fundamentals, including deployment workflows, scripting, debugging, and automation.
• Ability to troubleshoot issues, contribute to shared codebases, and improve internal platform reliability.
• A tinkerer mindset — curious, self-directed, and comfortable figuring things out independently.
• Excellent communication skills and the ability to work effectively with QA, Development, and Data teams.
• Financial services experience is a plus but not required.
• Rust and/or Python experience preferred.

Why you should apply:

• Comprehensive Benefits
• Unlimited PTO
• 100% coverage for medical, dental, and vision
• New hire stock equity (RSUs)
• 401K employer match
• OneMedical membership
• 16 weeks paid parental leave
• Flexible workplace
• Employer charity match
• Learning stipend
• Commuter benefits
• Jump Start onboarding program
• Internal mentor program cross-departmentally 
• Friendly and inclusive workplace culture        

Here at IEX, we are dedicated to an inclusive workplace and culture. We are an Equal Opportunity Employer that does not discriminate on the basis of actual or perceived race, color, creed, religion, alienage or national origin, ancestry, citizenship status, age, disability or handicap, sex, marital status, veteran status, sexual orientation, genetic information or any other characteristic protected by applicable federal, state or local laws. This policy not only complies with all applicable

Our job titles may span more than one career level. The starting annual base pay is between $200,000 and $225,000 for this NY-based position. The actual base pay is dependent upon many factors, such as: training, transferable skills, work experience, business needs and market demands. The annual base pay range is subject to change and may be modified in the future. This role is eligible for bonus and equity.