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Lead Software Engineer

Company: Epsilon Strategy & Insights
Location: Schiller Park
Posted on: November 3, 2025

Job Description:

Research, design, and develop computer and network software or specialized utility programs. Convert UX designs mock-ups and wireframes into interactive and responsive IQ functionality. Collaborate closely with UX designers, product owners and developers to ensure that the user interface meets functional requirements and user expectations. Mentor and collaborate other UI developers. Conduct code reviews to ensure that the team adheres to best practices and maintains high-quality code standards. Write unit and functional tests to ensure individual components of the user interface function. Work on multiple POCs as per the project requirement. Address and resolve bugs or UI raised by QA teams, users or team members. Monitor, profile and optimize UI performance to ensure smooth user interactions and fast page loading times. Responsible to write unit and functional tests to ensure individual components of the user interface function. Requirements: Employer will accept a Bachelor’s degree in Computer Science, Engineering, Information Technology, or a related field followed by eight years of progressive, post-baccalaureate experience in the job offered or eight years of progressive, post-baccalaureate experience in any occupation in which the required experience was gained. Experience must include one year of experience in each of the following: 1. Angular/AngularJS 2. JavaScript 3. Typescript 4. Springboot Rest API 5. ReactJs/RXjs 6. HTML 7. CSS 8. MongoDB 9. Accessibility 10. Charting Libraries 11. Responsive Designs/Cross Browser Development for Backbone Required to work from Company Office (Chicago, IL) certain days per week. Telecommuting allowed for balance of week. Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. For decades, we’ve provided marketers from the world’s leading brands the data, technology and services they need to engage consumers with 1 View, 1 Vision and 1 Voice. 1 View of their universe of potential buyers. 1 Vision for engaging each individual. And 1 Voice to harmonize engagement across paid, owned and earned channels. Epsilon’s comprehensive portfolio of capabilities across our suite of digital media, messaging and loyalty solutions bridge the divide between marketing and advertising technology. We process 400 billion consumer actions each day using advanced AI and hold many patents of proprietary technology, including real-time modeling languages and consumer privacy advancements. Thanks to the work of every employee, Epsilon has been consistently recognized as industry-leading by Forrester, Adweek and the MRC. Epsilon is a global company with more than 9,000 employees around the world. Epsilon has a core set of 5 values that define our culture and guide us to create value for our clients, our people and consumers. We are seeking candidates that align with our company values, demonstrate them and make them meaningful in their day-to-day work: • Act with integrity. We are transparent and have the courage to do the right thing. • Work together to win together. We believe collaboration is the catalyst that unlocks our full potential. • Innovate with purpose. We shape the market with big ideas that drive big outcomes. • Respect all voices. We embrace differences and foster a culture of connection and belonging. • Empower with accountability. We trust each other to own and deliver on common goals. Because You Matter As an Epsilon employee, you deserve perks and benefits that put you, your family and your finances first. Our benefits encompass a wide range of offerings, including but not limited to the following: • Time to Recharge: Flexible time off (FTO), 15 paid holidays • Time to Recover: Paid sick time • Family Well-Being: Parental/new child leave, childcare & elder care assistance, adoption assistance • Extra Perks: Comprehensive health coverage, 401(k), tuition assistance, commuter benefits, professional development, employee recognition, charitable donation matching, health coaching and counseling

Keywords: Epsilon Strategy & Insights, Chicago , Lead Software Engineer, IT / Software / Systems , Schiller Park, Illinois


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