Sr Full Stack Developer

Job Description: Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able To Obtain: None Public Trust/Other Required: NACI (T1) Job Family: Software Engineering Skills: Job Qualifications: Agile Software Development, Amazon Web Services (AWS), Angular, Application Development, Design Certifications: None Experience: 7 + years of related experience US Citizenship Required: Yes Job Description: GDIT is seeking an experienced Full Stack Developer with strong Python expertise to support fixes, enhancements, and ongoing maintenance for a large, production web application in support of the EPA IV MAINES Contract. This role will contribute to multiple major planned releases in FY26 and provide continuous Standard Web Maintenance across both the UI and API tiers of the system. The ideal candidate has experience with modern front‑end frameworks, backend API development, third‑party integrations, and building scalable, secure, and user‑friendly applications. The Full Stack Developer will play an essential role in delivering several major system releases by: Enhancing UI functionality across multiple planned deploymentsImproving backend performance and reliabilityStrengthening integration workflows and batch processing capabilitiesEnhancing search, filter, and administrative featuresSupporting long-term maintainability through continuous Standard Web Maintenance Key Responsibilities UI Application Development Support Implement UI updates and enhancements based on provided requirementsPerform Standard Web Maintenance, including:Bug fixesAccessibility improvementsFront‑end performance tuningRoutine UI updates and code quality improvementsEnsure adherence to established design, usability, and security guidelines API Application Development Support Build and support third‑party migrations and integrationsImplement batch upload functionality for external systemsDevelop additional backend features as requestedImprove search and filter capabilitiesSupport development and enhancement of administrative modulesEstablish and follow standards for migrations and integrationsEnhance integration‑related functionality for improved reliability and performanceSupport migration of legacy data and processes to updated architectureEnsure API components meet expectations for performance, scalability, and security Required Skills & Qualifications Strong hands-on experience with Python and modern frameworks (Django, Flask, FastAPI, or similar)Full stack experience with JavaScript frameworks such as React, Angular, or VueExperience designing, developing, and maintaining REST APIsExperience with batch processing workflowsExperience integrating external or third‑party systemsProficiency with relational databases (PostgreSQL, MySQL, etc.)Knowledge of cloud environments (AWS, Azure, or GCP)Git version control experienceStrong analytical and problem‑solving abilitiesAbility to work independently and manage work across multiple releasesExperience with Agile development processesExcellent communication and teamwork skills Preferred Qualifications Experience supporting large-scale production applicationsFamiliarity with secure coding practices and enterprise security standardsExperience with CI/CD pipelines and automated testing frameworksExperience with PHP The likely salary range for this position is $127,500 - $172,500. 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: 40 Travel Required: None Telecommuting Options: Remote Work Location: Any Location / Remote Additional 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. GDIT typically provides new employees with 15 days of paid leave per calendar year to be used for vacations, personal business, and illness and an additional 10 paid holidays per year. Paid leave and paid holidays are prorated based on the employee’s date of hire. The GDIT Paid Family Leave program provides a total of up to 160 hours of paid leave in a rolling 12 month period for eligible employees. 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 at gdit.com/tc. Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans