This position is no longer accepting applications
Closed on August 20, 2026.
This role is filled — get an email when new Software Development roles open on DeveloperJobs.io:
Software Engineer III with TS/SCI Polygraph
Backend Developer
Python
Senior
APIs
Artificial Intelligence
Database
Databases
Engineer
Engineering
Frontend
Full Stack
Programming Language
Programming Languages
Software Development
Software Engineer
Software Engineering
Software Security
SQL
TS/SCI
TS/SCI Clearance
View similar jobs
Get alerted when similar jobs are posted — set up a New Software Development jobs on DeveloperJobs.io alert.
See other roles at Deloitte.
Job Description
Software Engineer III on Deloitte's Process Engineering and Automation team designs, builds, and maintains secure, scalable applications, including AI-enabled websites, internal tools, dashboards, and APIs, across the full software development life cycle in a compliance-driven environment.
Responsibilities
- Design, develop, and sustain full‑stack web applications, covering user interfaces, databases, and server-side services, aligned to program requirements and security standards
- Own assigned features across the software development life cycle, including requirements analysis, solution design, development, testing, deployment support, and ongoing maintenance
- Develop and enhance applications using Python, HTML, CSS, .NET, and PowerShell, with security controls and secure coding practices embedded throughout
- Integrate AI capabilities into applications, including large language model features, agentic workflows, intelligent search, and AI‑assisted user experiences
- Create and maintain unit, integration, and end‑to‑end tests; participate in code reviews; document APIs, data models, and architectural decisions
Requirements
- Bachelor's degree
- 4+ years of application development experience, including test‑driven development
- 4+ years of experience with Python and full‑stack web technologies, including React, HTML, CSS, .NET, and APIs
- 4+ years across the software development life cycle, including requirements analysis, design, development, testing, deployment, and maintenance
- Active TS/SCI clearance with polygraph
- Ability to travel approximately 10‑25% based on client needs and engagements
- Legal authorization to work in the United States without employer sponsorship now or in the future
Technologies
- Python
- HTML
- CSS
- .NET
- PowerShell
- React
- PostgreSQL
Benefits
- Discretionary annual incentive program
Qualifications
- Bachelor's degree
- 4+ years of application development experience, including test‑driven development
- 4+ years with Python and full‑stack technologies including React, HTML, CSS, .NET, and APIs
- 4+ years across the software development life cycle including requirements analysis, design, development, testing, deployment, and maintenance
- Active TS/SCI clearance with polygraph
- Travel 10‑25% on average
- Authorized to work in the United States without employer sponsorship now or in the future
- Experience with PostgreSQL schema design and relational database development
- Experience building applications with React and .NET
- Experience implementing security controls aligned to OWASP Top 10 guidance
- Experience integrating large language model capabilities, agentic workflows, or intelligent search into applications
- Experience writing unit, integration, and end‑to‑end tests in a CI/CD environment
- Experience supporting Authority to Operate (ATO) documentation or security review processes in classified environments
Similar Jobs
L