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# Application Developer

- **Company:** REBEL TALENT, LLC
- **Location:** Mundelein, IL, United States (Remote available)
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Microsoft Word, JavaScript (Programming Language), Automation of Tests, Code Review, Data Validation, Software Debugging, Python (Programming Language), Regression Testing, SQL Databases, TypeScript, Flask (Web Framework), Large Language Models, Claude Code, Software Application Programming, Backend, Git, Fastapi, Vue.js, SC Clearance, Front End Software Development, Restful APIs, GPT
- **Published:** October 16, 2026
- **Apply:** https://www.juju.com/job/3_5922688188

## About the Role

Must live in the DC metro area.
Must be a US Citizen to support US Government programs and be eligible for a Secret clearance. \n \n Responsibilities: \n * Implement scoped Python backend fixes and REST API integrations using Flask or FastAPI. \n * Improve the Vue.js interface, including answer presentation, citations, tables and error states \n * Use SQL and graph queries to validate records, relationships and financial fields; trace issues \n across retrieval, backend responses and UI rendering \n * Build regression tests and document expected versus actual results, evidence, defects and \n remaining limitations \n * Maintain focused code changes, technical documentation and clear progress updates. \n * Support controlled validation and releases \n * Adhere to and report on technical milestones and the overall project schedule \n * Participate in and support internal and external engagements including client meetings, \n conferences, and industry days \n * Evaluate operational deficiencies, recommend
improvements, and coordinate their \n implementation \n * Attend meetings and program reviews, assist with compiling presentations, written materials, \n and/or electronic communications as required \n * Travel domestically and internationally, provide in-person support at client sites, and \n obtain and maintain professional certifications and security clearances as required. \n \n Qualifications: \n * 2-4 years of experience developing applications using Python, SQL, REST APIs, and related \n technologies \n * Experience in practical data validation and debugging \n * Experience using JavaScript or TypeScript and a modern frontend framework; Vue.js preferred. \n * Experience with Git, code reviews, automated testing and the ability to explain and verify code \n changes \n * Experience using LLM coding assistants such as Claude Code, ChatGPT or Codex to investigate \n code, plan changes, implement fixes and create tests \n * Proficiency using Microsoft Word