Type of Requisition:RegularClearance Level Must Currently Possess:NoneClearance Level Must Be Able to Obtain:SecretPublic Trust/Other Required:NoneJob Family:Software EngineeringJob Qualifications:Skills:C++ STL, Data Warehouse ETL, Extract Transform Load (ETL), Parallel Programming, Scripting LanguagesCertifications:NoneExperience:8 + years of related experienceUS Citizenship Required:YesJob Description:GDIT is seeking a Principal Software Engineer to join our team.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 Principal Software Engineer, you will perform software requirements analysis, design, development, testing, maintenance and participate in research of an operational big data system. The Principal Software Engineer focuses on 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. US Citizenship is required. Active Secret clearance is preferred. If a candidate does not have an active clearance, GDIT will sponsor the clearance upon contingent offer. The work must be performed onsite (no remote work).WHAT YOU’LL NEED TO SUCCEED:Demonstrated understanding of software engineering concepts, principles and applicationsExperience with database technologies, SQL, ETL, indexing and performanceDemonstrated understanding of software engineering concepts, principles and applicationsIn-depth understanding of object-oriented and functional programming, design patterns, data structures and algorithmsProven Modern C++ experience (Modern C++ versions 11/14/17/20) applied in a Linux development environmentExperience with parallel and multi-threaded programming and multi-process applicationsProven experience in scripting languages including Bash, Ruby and PythonProven experience with very large databases/big data/enterprise data warehousesRequired Experience: Minimum of 8+ years of related experiencePreferred Skills:Education: Bachelor's (4 year) degree in software engineering or related technical field OR a minimum of 12 years of equivalent work experienceExperience with Azure Cloud developmentExperience with memory architectures (NUMA) and cachingWorking knowledge of techniques for improving performance such as profiling, avoiding memory allocation/de-allocation, parallelization and algorithmsExperience with data modeling and NoSQL database technologies such as MongoDBWhat sets you apart:Ability to interact and collaborate effectively with project teams, managers, and end usersMaintain commitment to ongoing professional developmentBe able to grasp and apply new information quickly and handle increasing responsibilities with growing complexityBe a creative and innovative thinker with the ability to multi-taskCLEARANCE REQUIREMENTS:Department of War Secret security clearance is required before starting on program. Applicants selected will be subject to a government background investigation and must meet eligibility and suitability requirements. Due to the nature of work performed within our facilities, U.S. citizenship is required.GDIT IS YOUR PLACE:401K with company matchComprehensive health and wellness packagesInternal mobility team dedicated to helping you own your careerProfessional growth opportunities including paid education and certificationsCutting-edge technology you can learn fromRest and recharge with paid vacation and holidayThe likely salary range for this position is $136,000 - $184,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.Scheduled Weekly Hours:40Travel Required:NoneTelecommuting Options:OnsiteWork Location:USA VA OaktonAdditional Work Locations:Total Rewards at GDIT:Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. Our Identity Verification Process:As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes. About Our Work:We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events atgdit.com/tc.Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans