Epsilon · 10 hours ago
Senior Full-Stack Engineer
Chicago, IL
Full-time
Hybrid
Senior Level
$89K/yr - $166K/yr
5+ years expEpsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. They are seeking an experienced Senior Full Stack Engineer to join their Product Engineering team, where the role involves contributing to both front-end and backend development while ensuring software quality and performance.
Telecom & CommunicationsSocial MediaDigital MediaAdvertisingAppsMarketingEmailMobile
Responsibilities
Contribute to the implementation and maintenance of our platform code and components, spanning both frontend and backend
Collaborate with platform, operations, and engineering teams across the organization
Ensure features are well-tested, contributing to our continuous integration environment
Diagnose performance bottlenecks and tackle critical production issues across the entire stack
Collaborate in crafting solutions using both backend and frontend technologies
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
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
Preferred
Master's Degree in Computer Science or a related field
Exposure to working in the Ad Tech industry
Experience launching tech products across multiple sectors
Comfortable using tech platforms such as Salesforce, Eloqua, Asana, or similar
Familiarity with performance metrics and KPIs to assess GTM success
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