Jobs and Careers
ES

Senior Full Stack Engineer

eSimplicity
UKRemotefull_timeVerifiedPosted 16 Jan 2026
💰 $140,000/yr($116,700/yr$140,000/yr)

About the role

Job Type Full-time Description

About Us:

eSimplicity is a modern digital services company that partners with government agencies to improve the lives and protect the well-being of all Americans, from veterans and service members to children, families, and seniors. Our engineers, designers, and strategists cut through complexity to create intuitive products and services that equip federal agencies with solutions to courageously transform today for a better tomorrow.


Responsibilities:  

  • Architects, designs, creates, and builds web application features; creates back-end code and interfaces for new web platforms; analyzes user needs to implement front-end design, graphics, performance, and capacity; integrates applications with other platforms as needed. 
  • Keeps up to date on web developments and trends.  
  • Experience using modern, open-source software to prototype and deploy backend web applications, including all aspects of server-side processing, data storage, and integration with frontend development.  
  • Authors friendly documentation (e.g., API documentation, deployment operations).  
  • Quickly searches and learns new programming tools and techniques.  
  • Handles large data sets and scaling their handling and storage. 
  • Collaborates with Product Managers, Designers, and Engineers to set up, develop, and maintain an external-facing web portal to view data sets, access data catalogs, request compute resources, and manage data access controls for an enterprise data and analytics platform 
  • Designs and develops user-facing features on web-based applications using JavaScript/React JS  
  • Develops, debugs, and improves performance of front-end components and application features, including implementing dynamic and interactive pages 
  • Translates designs and wireframes into reusable, testable and efficient front-end code 
  • Builds, iterates, and tests scalable, back-end APIs for web applications 
  • Designs and develops data models to optimize data access for web applications 
  • Participates in Agile processes including daily standups, demos, retrospectives, and sprint planning 
  • Works closely with product owners and business analysts to gather and implement business requirements  
  • Works closely with designers and engineers to gather and implement product, front-end, and back-end requirements 
  • Provides support, maintenance, and enhancements to the existing application  
  • Collaborates with product managers, engineers, and QA on the team to communicate and clarify designs and requirements 
Requirements

Required Qualifications: 

  • All candidates must pass public trust clearance through the U.S. Federal Government. This requires candidates to either be U.S. citizens or pass clearance through the Foreign National Government System which will require that candidates have lived within the United States for at least 3 out of the previous 5 years, have a valid and non-expired passport from their country of birth and appropriate VISA/work permit documentation. 
  • Minimum of 8+ years previous Full Stack Engineer experience.
  • A bachelor's degree in computer science, Information Systems, Engineering, Business, or other related scientific or technical discipline. OR
    In lieu of a degree, ten years of general information technology experience and at least eight years of specialized experience may be substituted.
  • Experience in AWS cloud data architecture 
  • Experience with one of the major cloud service providers (AWS preferred) 
  • Strong Python and Djanjo skills and experience is a must. 
  • Coding SME HTML, CSS, JavaScript, Typescript, , etc. 
  • Expertise with Node.js, JavaScript framework React, or Angular 
  • Deep understanding of APIs, and familiarity with JSON, Web APIs, REST APIs, JSON-RPC, XML-RPC, RESTful practices, and GraphQL 
  • Experience with Docker containerization and deployments 
  • Experience in relational and non-relational databases like SQL, MySQL, NoSQL, PostgreSQL, MongoDB or similar 
  • Experience with benchmarking, monitoring, and performance engineering applications with tools such as Grafana, Sentry, and Prometheus 
  • Knowledge of automated end-to-end unit tests and testing platforms 
  • Strong documentation and problem-solving skills  
  • Experience with Git and AWS DevSecOps
  • Flexible and willing to accept a change in priorities as necessary
  • Ability to work in a fast-paced, team-oriented environment 
  • Experience with Agile methodology, using test-driven development
  • Experience with Atlassian Jira/Confluence
  • Excellent command of written and spoken English
  • Communicates technical information to non-technical audience

Desired Qualifications:

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

eSimplicity

View company profile →