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Full Stack Engineer

Iex

New York (New York, NY) permanent

Posted: December 8, 2025

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Quick Summary

Partner with our businesses to own our website properties and applications, driving performance across asset classes and advocating for transparent and competitive markets.

Job Description

About IEX:

IEX (IEX Group, Inc.) is an exchange operator and technology company dedicated to innovating for performance in capital markets. Founded in 2012, IEX launched a new kind of securities exchange in 2016 that combines a transparent business model and unique architecture designed to protect investors. Today, IEX applies its proprietary technology and experience to drive performance across asset classes, serve investors, and advocate for transparent and competitive markets.

IEX is looking for a Full Stack Engineer to partner with our businesses and own our website properties and applications from a technical perspective. You are a self-starter who likes working across teams to solve business challenges. You have experience maintaining complex websites and web apps from a front-end perspective and would be excited and driven to build your skillset on the backend and in a DevOps-type role.

In this role, you would work primarily with the development and marketing teams to own our existing websites (e.g., iex.io, iexexchange.io) and web apps, as well as to build new websites for businesses and products as needed. This role is highly visible across the company and a great fit for someone who is motivated to own initiatives from start to finish.

About You:

• Highly collaborative with strong communication skills

• Self-motivated, willingness to take on work and be gritty

• Conscientious about prioritizing and following through from start to finish

• Excellent problem-solving skills

• Excited about learning new skills

• Has an eye for design as well as the technical side of websites

• Can work both independently and within a team setting to accomplish goals

• Firm dedication to the core values of IEX – belief in fairness and transparency in the financial markets

What You’ll Do:

• Own and maintain IEX’s web properties and applications from a technical perspective

• Design and develop new web pages and sites based on business requirements

• Debug and troubleshoot existing websites and applications

• Communicate timelines and plans to marketing and business owners

• Over time, take over full lifecycle ownership of all systems involved as your backend skills grow (with training from internal partners)

You Are:

• 5+ years of front-end software development experience

• Familiarity with JavaScript, Node.js, React.js, HTML, CSS

• Experience building data pipelines with Python

• Experience with MySQL, Redis, GitHub

• Experience building APIs and working with REST/JSON

• Experience with Azure Cloud a plus

• Experience or interest in artificial intelligence (AI)

• Interest in learning to work with trading systems

• Culture fit (Think Big, Do Good/ Win Together/ Be Gritty/ Invent & Reinvent)

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

Our job titles may span more than one career level. The starting annual base pay is between $150,000 and $200,000 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.

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

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