AdTechTalent
Product2 months agoHybrid

Epsilon

Lead Software Engineer

Node.jsTypeScriptJavaScriptExpress.jsNestJSFastifyAWSKafkaRabbitMQSNSSQSPostgreSQLSQL ServerAuroraDynamoDBMongoDBRedisTerraformAnsibleCI/CDDevOpsMicroservicesREST APIsEvent-drivenGenerative AILLMsRAGAgentic AICleanroomData PlatformsCloud-native

Key details

Salary

$98K – $182K

Employment type

Full-time

Seniority

Lead

Years experience

5-10

Location

Chicago, United States

Full job description

Lead Software Engineer role in the Cleanroom team responsible for designing, delivering, and executing mission-critical data systems. Requires 8-10 years of software engineering experience with expertise in scalable UX applications, distributed systems, REST APIs, microservices, and cloud-native data platforms primarily on AWS. Hands-on experience with Node.js, TypeScript, JavaScript, Express.js, NestJS, Fastify, AWS services, messaging/event-driven technologies, relational and NoSQL databases, Infrastructure as Code tools, CI/CD, and DevOps practices. Exposure to Generative AI technologies is required. Responsibilities include leading technical initiatives, mentoring engineers, collaborating with stakeholders, and managing the software development lifecycle. Location: Chicago, Illinois, United States. Salary range: $98,000 to $182,000 annually. Benefits include flexible time off, paid holidays, sick time, parental leave, childcare assistance, health coverage, 401(k), tuition assistance, commuter benefits, and professional development.

What you'll do

  • Drive design, delivery, technical strategy, and execution for mission-critical data systems
  • Define engineering standards and influence long-term platform direction
  • Mentor junior engineers
  • Ensure Cleanroom platform scales securely and reliably to support business growth
  • Deliver large-scale cloud-native data platforms primarily on AWS using REST APIs, microservices, and event-driven applications
  • Work hands-on across technology stack including Node.js, TypeScript, JavaScript, Express.js, NestJS, AWS services, event-driven architectures, SQL/NoSQL databases
  • Lead product-wide technical initiatives focused on performance optimization, scalability, reliability, security, governance, and cost efficiency
  • Partner with global engineering, product management, architecture, and business stakeholders to align technical solutions with business objectives
  • Own end-to-end software development lifecycle including requirements gathering, solution design, development, deployment, observability, and documentation
  • Foster a culture of innovation, accountability, collaboration, and technical excellence

Requirements

  • B.E./B.Tech/M.Tech/MCA in Computer Science, Information Technology, or related field
  • 8-10 years of strong software engineering experience
  • Expertise in building scalable UX driven applications and distributed systems architecture
  • Experience designing and building scalable REST APIs, microservices, and distributed systems
  • Strong hands-on expertise in Node.js, TypeScript, JavaScript, Express.js, NestJS, Fastify
  • Extensive experience with AWS services (S3, Lambda, API Gateway, EventBridge)
  • Experience with messaging and event-driven technologies (Kafka, RabbitMQ, SNS, SQS)
  • Expertise in relational and NoSQL databases (PostgreSQL, SQL Server, Aurora, DynamoDB, MongoDB, Redis)
  • Hands-on experience with Infrastructure as Code tools (Terraform, Ansible)
  • Strong understanding of CI/CD and DevOps practices (Jenkins, GitHub/GitLab, Bitbucket, GoCD)
  • Experience implementing unit, integration, and regression testing
  • Strong critical thinking and analytical skills
  • Exposure to Generative AI technologies including LLMs, RAG architectures, Agentic AI systems
  • Experience designing and deploying AI-driven solutions

Tech stack

Node.jsTypeScriptJavaScriptExpress.jsNestJSFastifyAWS (S3, Lambda, API Gateway, EventBridge)KafkaRabbitMQSNSSQSPostgreSQLSQL ServerAuroraDynamoDBMongoDBRedisTerraformAnsibleJenkinsGitHubGitLabBitbucketGoCDPySparkDatabricksAzureGoogle Cloud PlatformREST APIsMicroservicesEvent-driven architecturesCI/CDDevOpsGenerative AILLMsRAG architecturesAgentic AI systems

Benefits

Flexible time off (FTO)15 paid holidaysPaid sick timeParental/new child leaveChildcare & elder care assistanceAdoption assistanceComprehensive health coverage401(k)Tuition assistanceCommuter benefitsProfessional developmentEmployee recognitionCharitable donation matchingHealth coaching and counseling

Apply now

Ready to take the next step in your career? Click the button below to continue to the application process.

Continue to applicationBrowse more jobs

Similar jobs

More roles worth a look

Related opportunities based on specialty and working model so candidates can keep momentum.