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# Senior Principal Software Engineer - (Secret Clearance Preferred - Onsite Required)

- **Company:** General Dynamics Information Technology
- **Location:** Vienna, VA, United States
- **Experience:** Expert
- **Salary:** $161,500.0 - $218,500.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Microsoft Azure, Bash Shell, Big Data, Profiling, Computer Programming, Databases, Extract Transform Load (ETL), Data Structures, Data Warehousing, Software Design Patterns, Linux, Memory Management, Python (Programming Language), MongoDB, NoSQL, Object-Oriented Software Development, Ruby, Software Engineering, Software Requirements Analysis, SQL Databases, Multithreading, Scripting, Standard Template Library (STL), Caching, Parallel Computation, Indexer, Non-Uniform Memory Access, SC Clearance, Linux Development, Functional Programming, C++14
- **Published:** October 15, 2026
- **Apply:** https://www.dice.com/job-detail/e82273da-fa51-4a73-86c7-9f5eea1503f5

## About the Role

C++ STL, Data ETL, Data Warehouse, Linux Bash, Multithreaded Application Development, 10 + years of related experience, Bring your engineering expertise along with a drive for innovation to GDIT. The Software Engineer Sr Principal must have:

 * Demonstrated understanding and technical expertise in applied software engineering concepts, principles and applications
 * Experience with database technologies, SQL, ETL, indexing and performance including contextual data
 * In-depth understanding of object-oriented and functional programming, design patterns, data structures and algorithms
 * Proven ability to create high performance applications using Modern C++ (versions 11/14/17/20) applied in a Linux development environment
 * Proven experience in scripting languages including Bash, Ruby and Python
 * Experience with data modeling and NoSQL database technologies such as MongoDB
 * Experience with parallel and multi-threaded programming and multi-process applications
 * Proven experience with very large databases/big data/enterprise data warehouses
 * Experience with memory architectures (NUMA) and caching
 * Expertise in applying techniques for improving performance such as profiling, avoiding memory allocation/de-allocation, parallelization and algorithms
 * Required Experience: 10+ years of related experience

Preferred Skills:

 * Education: Bachelor's (4 year) degree in software engineering or related technical field OR a minimum of 14 years of equivalent work experience
 * Experience with Azure Cloud development

What sets you apart:

 * Ability to interact and collaborate effectively with project teams, managers, and end users
 * Maintain commitment to ongoing professional development
 * Be able to grasp and apply new information quickly and handle increasing responsibilities with growing complexity
 * Be a creative and innovative thinker with the ability to multi-task

## Description

This challenging and interesting software engineering and development position is a chance to participate in the development and operation of a high-performance big data system, and join a longstanding, stable program consisting of a team of individuals using defined Agile software principles and practices.

As a Senior Principal Software Engineer, you will lead and perform software requirements analysis, design, development, testing, maintenance and participate in research of an operational big data system. The Senior Principal Software Engineer focuses on proficiency and quality of software and application development and programming to deliver solutions to complex problems. You will tailor cutting-edge solutions to the unique requirements of our clients. Additionally, the Senior Principal Software Engineer may mentor and coach other software engineers.

ship is required. DoW active Secret clearance is preferred. If candidate does not have an active clearance, GDIT will sponsor the clearance upon contingent offer. The work must be performed onsite (no remote work).