AdTechTalent
Engineering2 days agoHybrid

Epsilon

Lead Software Engineer

javapythonspringai-assisted developmentragagentic aibackendmicroservicesrest apiagilesoftware engineeringdata modelingunixgit

Key details

Salary

$98K – $182K

Employment type

Full-time

Seniority

Senior

Years experience

5-10

Location

Irving, United States

Full job description

Epsilon is seeking a Senior Software Engineer with 7+ years of experience to design, build, and scale backend systems using Java and Python. The role emphasizes spec-driven AI-assisted development using tools like Cursor, Claude Code, and Kiro. Responsibilities include developing scalable backend services, integrating RAG-based and Agentic AI workflows, leading system design discussions, ensuring code quality, collaborating cross-functionally, and resolving production issues. Requirements include strong expertise in Java (Spring) and Python, experience with build tools (Maven/Gradle), source control (Git), data modeling with relational and NoSQL databases, Unix/Linux environment experience, mandatory experience with AI-assisted development and RAG/Agentic AI systems, strong fundamentals in data structures, algorithms, OOP, design patterns, system design, and Agile methodologies. Benefits include flexible time off, paid holidays and sick time, parental leave, childcare and elder care assistance, adoption assistance, health coverage, 401(k), tuition assistance, commuter benefits, professional development, employee recognition, charitable donation matching, and health coaching. Location: Irving, Texas, United States. Salary range: $98,000 to $182,000 annually.

What you'll do

  • Design, develop, and maintain scalable backend services using Java and Python
  • Apply spec-driven AI-assisted development practices including AI-assisted code generation, refactoring, and optimization
  • Translate detailed functional and technical specifications into high-quality code using AI tools
  • Perform intelligent debugging, test generation, and code reviews using AI tools
  • Build and integrate RAG-based solutions and Agentic AI workflows into enterprise systems
  • Lead system design and architecture discussions
  • Ensure high code quality through reviews, testing, and engineering best practices
  • Collaborate with product, data, platform, and cross-functional teams
  • Own and resolve complex production issues

Requirements

  • Bachelor’s or Master’s degree in Computer Science, Engineering, or related field or equivalent experience
  • 7+ years of hands-on software development experience
  • Strong expertise in Java and Python
  • Backend engineering experience with Java frameworks such as Spring
  • Experience with Java build and delivery tools like Maven or Gradle
  • Experience with source control workflows like Git and pull requests
  • Strong data modeling skills with relational and NoSQL databases
  • Experience working in Unix/Linux environments including automation and scripting
  • Mandatory experience with spec-driven AI-assisted development
  • Practical usage of AI coding tools such as Cursor, Claude Code, or similar
  • Ability to validate and productionize AI-generated code against specifications
  • Hands-on experience with RAG architectures and Agentic AI systems
  • Strong fundamentals in data structures, algorithms, OOP, design patterns, and system design
  • Experience building and operating backend systems in production
  • Understanding of REST APIs, microservices, and distributed systems
  • Proven ability to own problems end-to-end including design, implementation, testing, and support
  • Demonstrated technical leadership including mentoring and code reviews
  • Experience working in Agile/Scrum teams

Tech stack

JavaPythonSpringMavenGradleGitCursorClaude CodeKiroRAG (Retrieval-Augmented Generation)Agentic AIUnix/LinuxREST APIsmicroservicesNoSQLrelational databases

Benefits

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

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