Deloitte

Software Engineer III with TS/SCI Polygraph

Deloitte$119K — $198K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree required
  • 4+ years of experience in application development, including test-driven development
  • 4+ years of experience with Python and full-stack web development technologies
  • 4+ years in the software development life cycle
  • Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance with polygraph
  • Legally authorized to work in the U.S. without sponsorship required.

Responsibilities

  • Design, build, and maintain full-stack web applications aligned to security standards
  • Own assigned features throughout the software development life cycle
  • Develop applications using Python, HTML, CSS, .NET, and PowerShell with secure practices
  • Integrate AI capabilities including large language model features and intelligent search
  • Create and maintain various tests and document architectural decisions.

Benefits

  • Comprehensive benefits package emphasizing employee well-being
  • Opportunities for professional development and growth
  • Participation in discretionary annual incentive programs
  • Collaborative and innovative work environment
  • Supportive team culture focused on technology-enabled solutions.
Full Job Description
We are seeking a Software Engineer III to design, build, and maintain secure, scalable applications that support process engineering and automation initiatives. In this role, you will develop AI-enabled websites, internal tools, dashboards, and application programming interfaces that operate in a compliance-driven environment. The role requires hands-on experience across the software development life cycle, from requirements analysis and architecture through testing, deployment, and ongoing maintenance. The ideal candidate brings strong full-stack engineering experience, applies secure development practices throughout the build process, and uses AI-assisted development tools to accelerate delivery and enhance solutions.

Work you'll do

As a Software Engineer III on the Process Engineering and Automation team, you will be responsible for...
  • Design, build, and maintain full-stack web applications, including 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 maintenance
  • Develop and enhance applications using Python, HTML, CSS, .NET, and PowerShell, with security controls and secure coding practices incorporated throughout development
  • Integrate artificial intelligence 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; and document application programming interfaces, data models, and architectural decisions
A successful candidate would possess these skills:
  • Ability to work independently and collaborate as part of a team
  • Effective written and verbal communication skills
  • Meticulous attention to detail and quality of work product
  • Ability to build and sustain professional relationships
  • Ability to lead projects or workstreams
  • Ability to manage and prioritize multiple tasks in a fast-paced and dynamic environment
  • Strong interpersonal skills and professional demeanor
  • Ability to meet deadlines
  • Ability to provide clear guidance to others
The team

The Process Engineering and Automation team helps improve business processes through technology-enabled solutions. The team works across automation, artificial intelligence, robotic process automation, agentic workflows, and scripting tools to develop scalable solutions that support operational efficiency and business needs. Team members collaborate to design, build, and enhance tools that solve complex process challenges in secure and highly regulated environments.

Qualifications

Required:
  • Bachelor's degree
  • 4+ years of experience in application development, including test-driven development
  • 4+ years of experience with Python and full-stack web development technologies, including React, HTML, CSS, .NET, and application programming interfaces (APIs)
  • 4+ years of experience across the software development life cycle, including requirements analysis, design, development, testing, deployment, and maintenance
  • Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance with polygraph
  • Ability to travel 10-25%, on average, based on the work you do and the clients and industries/sectors you serve.
  • Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.
Preferred:
  • Experience with PostgreSQL schema design and relational database development
  • Experience building applications with React and .NET
  • Experience implementing security controls aligned to Open Worldwide Application Security Project 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 continuous integration/continuous delivery (CI/CD) environment
  • Experience supporting Authority to Operate (ATO) documentation or security review processes in classified environments
For individuals assigned and/or hired to work in Maryland, Deloitte is required by law to include a reasonable estimate of the compensation range for this role. This compensation range is specific to Maryland and takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $119,000 to $198,400.

You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.

Benefits

At Deloitte, we know that great people make a great organization. We value our people and offer employees a broad range of benefits. Learn more about what working at Deloitte can mean for you.

About Deloitte

Deloitte is a multinational professional services network that provides audit, tax, consulting, enterprise risk and financial advisory services. The company was founded in London in 1845 and has since grown to become one of the largest professional services firms in the world. Deloitte has over 330,000 employees in more than 150 countries and territories. The company's mission is to help clients achieve their goals and make an impact that matters in their businesses and communities.
Learn more about Deloitte
Size
330,000 employees
Industry
Founded
1999

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