Type of Requisition:RegularClearance Level Must Currently Possess:SecretClearance Level Must Be Able to Obtain:Top Secret/SCIPublic Trust/Other Required:NoneJob Family:Software DevelopmentJob Qualifications:Skills:Enterprise Application, Software as a Service (SaaS), Software DevelopmentCertifications:NoneExperience:7 + years of related experienceUS Citizenship Required:YesJob Description:GDIT is seeking qualified candidates to supportthe Missile Defense Agency (MDA) Integrated Research and Development for Enterprise Solutions (IRES) contract.Qualified candidates will provide integrated solutions supporting concurrent test, training, and operations (CTTO) within the Missile Defense Integration and Operations Center (MDIOC) mission execution platform and enterprise communications and information technology (IT) environment.Be a part of the GDIT Team that solve some of the world's most complex technical challenges! General Dynamics Information Technology (GDIT) is seeking a Software Developer, Senior to support the IRES program in Huntsville, Alabama.Duties Include:Define and maintain the enterprise application architecture, including patterns, standards, and guidelines to support scalable, secure, and maintainable solutionsLead high-level design of application systems (custom, COTS, SaaS), ensuring alignment with enterprise architecture, data strategies, and infrastructure standardsDesign and oversee integration strategies using APIs, middleware, and ETL tools to ensure smooth data flow across platforms and systemsEvaluate new platforms, tools, and services. Provide architectural oversight during procurement, development, and implementation phasesPartner with business stakeholders, product owners, developers, and IT leadership to gather requirements and co- create effective, value-driven solutionsContribute to rationalization of legacy applications, roadmap planning, and the adoption of cloud-native or modern application platformsEnsure that application designs meet security, privacy, and regulatory requirements from the outsetBasic Qualifications: A Bachelor’s or Master’s degree in Computer Science, Information Systems, or a related field; additional years of experience may be considered in lieu of degree7+ years of experience in application architecture, solution design, or senior software engineering roles.Strong understanding of architectural patterns (e.g., microservices, layered architecture, event-driven systems).Proven experience with application frameworks such as .NET, Java, Node.js, or Python.Deep knowledge of API design, system integration, and data architecture principles.Experience with SaaS/PaaS platforms (e.g., Salesforce, ServiceNow, Dynamics 365) and ERP/CRM systems.Familiarity with DevOps practices, CI/CD pipelines, and containerization (Docker, Kubernetes).Exposure to enterprise architecture frameworks (e.g., TOGAF, Zachman) is a plus.Experience in both on-premises and cloud-native application environments.Applicable DOD 8140 certificationsProfessional certifications such as TOGAF, AWS/Azure Solutions Architect, or Certified Software Architect.Active SECRET clearance with eligibility for TOP SECRET/SCIWHAT CAN GDIT OFFER YOU Excellent customizable health benefits (Medical, Dental and Vision)401K with company matchEducational Assistance and eLearningFlexible work weekInternal mobility team dedicated to employee advancementRewards and Recognition programsInnovative and collaborative environment encouraging highly motivated critical thinkingThe likely salary range for this position is $144,410 - $195,378. 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:Less than 10%Telecommuting Options:OnsiteWork Location:USA AL HuntsvilleAdditional 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.We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.We connect people with the most impactful client missions, creating an unparalleled work experience that allows them to see their impact every day. We create opportunities for our people to lead and learn simultaneously. From securing our nation’s most sensitive systems, to enabling digital transformation and cloud adoption, our people are the ones who make change real.Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans