Senior React Developer Jobs in Reston, VA (NOW HIRING)

Job Title: Sr Full Stack Developer – Node.js / React
Clearance Required: Public Trust – Federal Client requires US Citizenship
Work Location: Remote, Arlington, VA Alpha Omega is seeking a Sr Full Stack Developer (Node, React) to join one of our Prime Federal Contracts Remotely in Arlington, VA. We are building a modern Outlook add-in that integrates with SharePoint Online and Microsoft Entra ID to streamline document management and records organization. You will design and develop the full-stack React-based task pane application, build secure service layers that integrate with Microsoft Graph and SharePoint REST APIs, and manage the complete deployment pipeline from development through production. The Developer will own the end-to-end development lifecycle - from requirements gathering through production support - translating requirements into robust, well-tested code. You will collaborate closely with client stakeholders to ensure the solution meets enterprise records management standards, work independently to solve complex integration challenges, and communicate technical decisions clearly to both technical teams and end users. Key Responsibilities: Required Qualifications: * Design, build, and maintain a full stack React and Node.js application that integrates Outlook with SharePoint for enterprise document management and workflow automation.
* Develop the React-based user interface (task pane) with modern component architecture, state management, and Office JavaScript integration for seamless Outlook interoperability.
* Build secure, scalable Node.js service layers and APIs to mediate data flow between Outlook, SharePoint, Microsoft Graph, and Entra ID authentication.
* Integrate external services and data sources through Microsoft Graph, ServiceNow, and SharePoint REST APIs.
* Manage Azure Entra ID app registrations, permissions, and security lifecycle processes.
* Implement CI/CD pipelines, automated testing, and infrastructure-as-code for reliable and repeatable deployments.
* Test all developed components independently, documenting tests and results.
Education: * BA/BS in Computer Science, Engineering, or similar degree.
Experience/Skills: * Federal Client requires US citizenship.
* 10+ years of overall experience required for this Senior level position.
* 3+ years of professional software development experience with JavaScript and TypeScript.
* 3+ years of production React or modern component-based UI framework development.
* 3+ years of Node.js backend development, including experience building APIs and service layers.
* 3+ years of experience with Microsoft cloud services (Microsoft Graph, SharePoint REST APIs, and/or Azure).
* 3+ years of experience designing and implementing RESTful APIs with proper authentication and authorization patterns.
* 3+ years of hands-on experience with CI/CD pipelines, source control (Git), and code review processes.
* Experience integrating with Office JavaScript APIs and building applications that extend Microsoft 365 services.
* Strong verbal and written communication skills with the ability to explain technical concepts to both technical and non-technical stakeholders.
* Demonstrated ability to produce clear technical documentation and design specifications.
Certification(s): * PL-900 (Microsoft Power Platform Fundamentals) – Required by start date
* PL-100, PL-200, or Copilot-related certifications - Preferred
Salary and Benefit Information: The likely salary range for this position is $85,914 - $170,000. This is not, however, a guarantee of compensation or salary. There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, education and certifications as well as contract provisions regarding labor categories that are specific to the position and could fall outside of this range. Application Deadline: July 1, 2026 Joining the Alpha Omega team entitles you to participate in all retirement benefits, plans of deferred compensation, health and insurance benefits, and other such benefits as set forth in the company’s policy and benefits manuals. See below, to name a few: * 15 days PTO including paid parental, military, and bereavement leave
* Eleven (11) paid Federal holidays, five of which are floating holidays (as designated by the company’s holiday schedule each year)
* Health and Dental Insurance (including 100% employer paid premiums for employee coverage under the HDHP health plan)
* Life Insurance, STD/LTD term disability coverage, with employer paid premiums
* 401 (k) plan with a match that is 100% vested after you complete two years of service
* FSA/DFSA/HSA flexible benefit plans
* Annual Tuition & Professional Development Reimbursement benefit
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 Company: Alpha Omega is an award-winning solutions provider dedicated to delivering mission-enabling technology and strategic solutions for our customers. Since our founding in 2016, we have grown to over 700 employees nationwide consisting of former operators, technologists, and strategists who bring decades of government and industry experience. They are united by one purpose: ensuring our nation’s continued global leadership. We have a unified operating model providing technical capabilities and solutions for customers across two main business units: * National Security – supporting agencies such as the Department of Homeland Security (DHS), Navy, Air Force, Army, and the Department of State (DOS). 
* National Resilience – supporting agencies such as Federal Deposit Insurance Corporation (FDIC), Treasury, Health & Human Services (HHS), National Institutes of Health (NIH), National Oceanic and Atmospheric Administration (NOAA) and the United States Department of Agriculture (USDA)
Through strategic partnerships, intellectual property, and relentless drive for innovation, Alpha Omega is shaping the future of government technology. We are proud to be a Virginia Best Places to Work 8 times, an Inc. 5000 honoree 7 times, and a Washington Post Top Workplaces 4 times. Join us in driving transformation that secures the nation's future.  Culture and Values: Guided by our core values—Harmony, Engagement, Accountability, Resourcefulness, and Tenacity (HEART)— we foster a culture of innovation, collaboration, and continuous learning and are committed to delivering high-impact solutions. We recognize and reward hard work. Alpha Omega's culture is driven by our values and mission. We invest in top talent through mentorship, growth, and meaningful work. We value individuality, reward integrity, and foster a diverse, high-performing team united by purpose-at work, in service, and in the community. Alpha Omega Integration, LLC (Alpha Omega) is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.