Epsilon · 17 hours ago
Lead Full-Stack Engineer
Chicago, IL
Full-time
Onsite
Senior Level, Lead/Staff
$92K/yr - $152K/yr
5+ years expEpsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. The Lead Full-Stack Engineer will guide a team of engineers in software development, ensuring high-performance solutions and maintaining quality across both frontend and backend technologies.
AdvertisingDigital MediaEmailMarketingMobileSocial Media
Responsibilities
Lead the implementation and maintenance of our platform code and components, spanning both frontend and backend
Guide platform, operations, and engineering teams in collaboration
Ensure features are well-tested, contributing to our continuous integration environment
Diagnose performance bottlenecks and solve critical production issues across the entire stack
Collaborate in designing solutions using both backend and frontend technologies
Deliver high-performance, low-latency software solutions for our platform
Enhance the platform with new technologies and techniques in both frontend and backend areas
Ensure robust testing and integration to maintain software quality
Identify and solve critical issues to maintain platform performance
Qualification
Required
Bachelor's degree in Computer Science or a related field, or equivalent experience, with 5+ years in full stack software development
Knowledge of high-performance software and clean architecture principles
Experience with Single Page Applications (SPAs) using TypeScript and Angular or other modern frameworks/technologies
Strong expertise in backend development with Python or similar languages
Preferred
Master's degree or 10+ years of software development experience
Experience in the Ad Tech industry
Experience working on low-latency, high-throughput systems
Familiarity with public cloud providers and technologies like AWS, Azure, Kubernetes, and Docker
Clear and honest communication are key to success in this role
Benefits
Flexible time off (FTO)
15 paid holidays
Paid sick time
Parental/new child leave
Childcare & elder care assistance
Adoption assistance
Comprehensive health coverage
401(k)
Tuition assistance
Commuter benefits
Professional development
Employee recognition
Charitable donation matching
Health coaching and counseling
Company
Epsilon
Epsilon is an all-encompassing global marketing company, a leader in creating connections between people and brands.
5001-10000 employees
H1B Sponsorship
Epsilon has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (132)
2024 (128)
2023 (124)
2022 (201)
2021 (136)
2020 (137)
Funding
Current Stage
Late StageTotal Funding
unknown2019-04-15Acquired
Leadership Team
Myron Sojka
CTO
Lakshmana Gnanapragasam
Senior Vice President Strategy & Analytics
Recent News
Washington Technology
2025-12-19
Washington Technology
2025-12-09
2025-12-03
Company data provided by crunchbase