Lead Software Engineer

About Business Unit:

The Product team forms the crux of our powerful platforms and helps connect millions of customers worldwide with the brands that matter most to them. This team of innovative problem solvers develops and builds products that position Epsilon as a differentiator, encouraging an open and balanced marketplace built on respect for individuals, where every brand interaction holds value. Our full-cycle product engineering and data teams chart the future and set new benchmarks for our products, by using industry standard methodologies and sophisticated capabilities in data, machine learning, and artificial intelligence. Driven by a passion for delivering smart end-to-end solutions, this team plays a key role in Epsilon's success story

.
Why are we looking for yo

u
At Epsilon, we run on our people's ideas. It's how we solve problems and exceed expectations. Our team is now growing, and we are on the lookout for dedicated individuals who always set the standard by constantly challenging themselves and are experts in building customized solutions in the digital marketing space. So, are you someone who wants to work with pioneering technology and enable marketers to create data-driven, omnichannel consumer experiences through data platforms Then you could be exactly who we are looking for. Apply today and be part of a creative, innovative, and to experienced that's not afraid to push boundaries or take ris

ks.
What will you enjoy in this r

ole
As a Lead Software Engineer in the CDP team, you will drive design, delivery, technical strategy, and execution for critically important data systems. You will define engineering standards, influence long-term platform direction, mentor junior engineers, and ensure the CDP and Foundations platform scales securely and reliably to support sustained business gr

owth.
Click here to view how Epsilon transforms marketing with 1 View, 1 Vision and 1

Voice.
Responsib

• ilitiesDeliver large-scale cloud-native data platforms primarily on AWS leveraging REST APIs, micro services and event driven applications to build highly scalable and resilient s
• ystems.Work hands-on across the technology stack - including Java, Python, Spark, TypeScript, JavaScript, Angular, AWS services, event-driven architectures, and SQL/NoSQL databases - to solve complex engineering challenges and maintain platform exce
• llence.Lead product wide technical initiatives focused on performance optimization, scalability, reliability, security, governance, and cost effi
• ciency.Partner closely with global engineering, product management, architecture, and business stakeholders to align technical solutions with strategic business obje
• ctives.Own the end-to-end software development lifecycle, including requirements gathering, solution design, development, deployment, observability, and documen
• tation.Mentor and guide junior engineers, fostering a culture of innovation, accountability, collaboration, and technical exce

llence.
Qualif

• icationsB.E./B.Tech/M.Tech/MCA in Computer Science, Information Technology, or a relate
• d field.8-10 years of strong software engineering experience, with deep expertise in building scalable UX driven applications and distributed systems archi
• tecture.Proven experience designing and building scalable REST APIs, microservices, Kubernetes, and distributed
• systems.Experience in Data Warehousing, Data Lakes, Delta Lake architecture, and modern big data ecosystem
• designs.Strong hands-on expertise in Python, Java, Angular and well-versed with Object oriented design patterns and Functional prog
• ramming.Expertise in PySpark, and Apache Spark, with proven experience building high-performance distributed data processing so
• lutions.Solid depth in Micro-services development with Kubernetes containerization for eventing and
• serving.Extensive experience with AWS services such as S3, Lambda, API Gateway, and EventBridge for building scalable, reliable, cloud-native data pl
• atforms.Strong experience with messaging and event-driven technologies such as Kafka, SNS, and SQS, along with solid expertise in relational and NoSQL databases including PostgreSQL, SQL Server, Aurora, DynamoDB, MongoDB, an
• d Redis.Hands-on experience with Infrastructure as Code (IaC) tools such as Terraform and
• Ansible.Strong understanding of CI/CD and DevOps practices using tools such as Jenkins, GitHub/GitLab, Bitbucket, GoCD, and automated deployment pi
• pelines.Experience implementing robust testing strategies, including unit, integration, and regression testing, while adhering to engineering best pr
• actices.Strong critical thinking and analytical skills, with the ability to diagnose, troubleshoot, and solve complex technical problems effe
• ctively.Exposure to Generative AI technologies, including LLMs, RAG architectures, and Agentic AI systems, with experience designing and deploying AI-driven so

lutions.Nice

• to have:
  Working knowledge on PySpark & Da
• tabricks.Experience working with Azure and/or Google Cloud Platfo
• rm (GCP).Experience building data platforms in privacy-safe or CDP and Foundations envi

ronments.
Additional I

nformationEpsilon 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.
Our pillars aren't just words. They're how we show up

• every day.People centricity: We focus on employee well-being in an environment where colleagues truly care about
• each other.Collaboration: We work together, support one another, and collectively ach
• ieve goals.Growth: There are endless opportunities for growth through learning, development and career a
• dvancement.Innovation: We drive progress through cutting-edge solutions and forward-thinking
• approaches.Flexibility: We've created a balance between work and personal life, and we encourage adaptability to solve problems

creatively.Our values guide us to create value for our clients, our people and

• consumers.Act wit
• h integrityWork together to w
• in togetherInnovate w
• ith purposeRespect
• all voicesEmpower with acc

ountabilityThese pillars and values are our foundation—shaping our culture, guiding our decisions, and uniting us in comm

on purpose.
Epsilon is an Equal Opportuni

ty Employer.Epsilon is committed to promoting diversity, inclusion, and equal employment opportunities by using reasonable efforts to attract, recruit, engage and retain qualified individuals of all ethnicities and backgrounds, including, but not limited to, women, people of color, LGBTQ individuals, people with disabilities and any other underrepresented groups, traits or char