Demo

React Software Engineer (Mid-Level)

SpiderRock Holdings LLC
Chicago, IL Full Time
POSTED ON 6/19/2026
AVAILABLE BEFORE 8/19/2026

The React Software Engineer (Mid Level) will work with the UI/UX development team and SpiderRock's business stakeholders and designers to build interfaces for our leading-edge web-based products. This is a full-time salaried position that reports to the Head of UI/UX Design and the role will work at our Chicago downtown office.

WHAT YOU WILL DO

  • Leverage React to develop highly performant applications that handle heave data flows.
  • Implement backend API endpoints and WebSocket handlers in C#.
  • Collaborate with Design and Product to understand and plan features, implement pixel-perfect designs, and expected functionality.
  • Help to troubleshoot, test, and maintain the quality and security of web applications.
  • Produce meaningful unit tests for functionality to ensure backwards compatibility.
  • Maintain and promote development best practices and coding standards.

WHAT SPIDERROCK IS LOOKING FOR

  • 4-year college degree in Computer Science, or related field or equivalent work experience.
  • 3 years of experience building web applications.
  • Demonstrated ability to develop in Typescript with React, Material UI, Node.js.
  • Additional technical skills in C#, Python and SQL a plus.
  • Knowledge of the financial markets preferred but not required.
  • Experience working in an Agile environment.
  • Implement backend API endpoints and WebSocket handlers in C#.
  • Collaborate with Design and Product to understand and plan features, implement pixel-perfect designs, and expected functionality.
  • Communication with end users, assessing requirements and managing expectations professionally.
  • Ability to work in a fast-paced, high-pressured technology environment.
  • Independent project and time management.
  • Professional, motivated attitude.
  • Stong interpersonal skills.

WHAT TO EXPECT

  • Learn while doing
  • Highly competitive pay, benefits and bonus structure
  • Health insurance (medical, dental, vision)
  • Voluntary ancillary plans (Life & AD&D, Short-Term Disability, Long-Term Disability, Critical Accident and Critical Illness)
  • Discounted pet insurance
  • 401K plan and safe harbor employer match
  • Employee assistance program
  • Company laptop and equipment
  • Progressive time off benefits (unlimited PTO, maternity leave, paternal leave)
  • Integrative work environment
  • Wellness programs
  • Zen Den for meditation, naps, nursing, or just to decompress
  • Work with high-caliber and innovative professionals
  • Access to unlimited snacks and beverages in our lounge area
  • State of the art office with spectacular views downtown Chicago and the Chicago River
  • Gym membership at our building fitness center on our floor
  • Divvy bike access
  • A fun and collaborative environment

SpiderRock is an Equal Opportunity Employer


Salary : $115,000 - $135,000

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