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Senior Software Engineer

Epsilon

$80,250 - $133,750
Sep 12, 2025
Boston, MA, US
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Advance the Epsilon PeopleCloud Discovery application by building rich user interfaces, developing microservices, interacting with various data stores, and expanding DevOps capabilities.

Requirements

  • 4 - 6 years of professional web application development experience, using Java or JavaScript/TypeScript as the primary programming language.
  • 3+ years of in-depth experience building Single Page Application (SPA) user interfaces using Angular, React or Vue.js.
  • Experience developing using a Test-Driven Development (TDD) approach and knowledge of when/how to test pragmatically.
  • Understanding of algorithms, complexity, and data structures.
  • Knowledge of object-oriented programming (OOP) principles and ability to leverage applicable design patterns.
  • Experience building data visualizations with front-end JavaScript libraries.
  • Experience with relational database systems and ability to write efficient SQL queries.

Responsibilities

  • Building new features and feature enhancements; contributing to ongoing maintenance
  • Contributing to ongoing refinements of our coding style and development processes
  • Embracing strong, agile development methods, including development with tests, infrastructure as code, and continuous integration and deployment.
  • Designing, creating, maintaining, and optimizing a modern web application platform for user interaction, data visualization and workflow management.
  • Evaluating and prototyping new technologies in web application interfaces, APIs, and data management technology.
  • Building rich user interfaces using the Angular framework
  • Developing microservices to provide data to the Discovery UI or other applications in the Epsilon PeopleCloud ecosystem

Other

  • Thinking quickly, communicating clearly, and working collaboratively with product, engineering, QA, and operations teams.
  • Outstanding communication skills (oral, written and presentation) and strong interpersonal skills.
  • High energy level, strong team player and good work ethic.
  • Ability to drive technical design for system components.
  • Experience providing technical mentorship to junior engineers.