Epsilon · 4 hours ago
Senior Software Engineer
United States
Full-time
Remote
Mid, Senior Level
$89K/yr - $165K/yr
6+ years expEpsilon is building the next generation Retail Media Network (RMN) platform to power onsite advertising at scale. They are seeking a Senior Software Engineer to join their Core Platform Engineering team, responsible for shaping architecture, optimizing performance, and ensuring systems are built for scale and reliability.
AdvertisingDigital MediaEmailMarketingMobileSocial Media
Responsibilities
Design, implement, and maintain high-performance, low-latency services for advertising
Collaborate with product, platform, and operations teams to integrate new capabilities into the platform
Optimize system performance, fix production issues, and eliminate bottlenecks across the stack
Contribute to frontend integrations (SPAs, dashboards, tools) when needed, ensuring seamless workflows for internal and external users
Partner with data engineering teams to design and integrate event tracking, analytics, and reporting pipelines
Champion code quality, testing standard processes, and CI/CD automation
Deliver critically important enhancements enabling fast, accurate, and scalable ad delivery
Build robust, future-proof services and interfaces that empower rapid feature development
Improve system observability, monitoring, and fault tolerance
Qualification
Required
Bachelor's degree in Computer Science or related field (or equivalent experience)
6+ years of experience in backend and/or full stack software development
Strong backend expertise in Java, with experience in high-performance, distributed systems
Experience with streaming platforms (e.g., Kafka, Kinesis, Pulsar)
Proficiency with relational databases (SQL) and NoSQL data stores
Understanding of low-latency, high-throughput architectures and clean software design principles
Experience building SPAs with TypeScript and modern frameworks (Angular, React, or similar)
Preferred
Master's degree or 10+ years software engineering experience
Experience in ad tech, especially ad serving, RTB, or programmatic platforms
Familiarity with cloud-native environments (AWS, Kubernetes, Docker)
Experience with large-scale event tracking, data pipelines
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