Full-Stack Developer

Required Qualifications

• Bachelors and nine (9) years or more experience; Masters and seven (7) years or more experience; PhD or JD and four (4) years or more experience.
• Master's degree is preferred in Computer Science, Software Engineering, Information Systems, Data Science, Artificial Intelligence, or a related technical discipline.
• 5+ years of professional software-development experience, including full-stack web application development.
• Strong hands-on experience with React and strong proficiency in TypeScript and JavaScript.
• Strong proficiency in HTML5 and CSS3.
• Experience developing modern, component-based, data-intensive web applications.
• Experience designing and developing RESTful APIs and server-side business logic.
• Working knowledge of AI/LLM concepts and AI agent-based application patterns, including prompt-driven workflows, tool/function calling, orchestration, context handling, and human-in-the-loop controls.
• Experience integrating front-end applications with backend APIs and enterprise services.
• Experience working across mixed-language codebases and understanding dependencies between legacy and modern application components.
• Experience maintaining and modernizing legacy applications while developing new functionality and integrations.
• Proficiency with Linux shell scripting (such as Bash) for automation, troubleshooting, and operational support.
• Proficiency with JavaScript/TypeScript for modern web application development.
• Strong programming experience with Python for backend development, automation, integration, data processing, or application support.
• Strong programming experience with C and C++, including the ability to read, debug, maintain, and enhance existing legacy codebases.
• Strong working knowledge of SQL and relational database design.
• Hands-on experience with MariaDB/MySQL or comparable relational database technologies.
• Ability to develop and optimize SQL queries and troubleshoot database-related application issues.
• Experience implementing authentication, authorization, and role-based access controls.
• Experience with Git and modern source-control practices.
• Experience with automated unit and integration testing.
• Experience working in a Linux-based development environment and using the Linux command line/shell.
• Experience using Visual Studio Code (VS Code) or a comparable modern IDE.
• Understanding of secure software-development practices.
• Experience debugging applications across UI, API, backend, and database layers.
• Experience working within an Agile/Scrum software-development environment.
• Strong analytical, troubleshooting, problem-solving, written, and verbal communication skills.
• Must be a US Citizen and able to obtain and maintain a Public Trust.
• Experience integrating Python, C/C++, shell-based utilities, JavaScript/TypeScript applications, and relational databases in enterprise environments.
• Experience modernizing legacy applications through refactoring, API enablement, service decomposition, or incremental replacement strategies.
• Experience with legacy C/C++ build systems, libraries, compilers, debugging tools, and Linux-based development workflows.
• Advanced experience with React and TypeScript and modern React routing, state-management, and data-fetching approaches.
• Experience developing enterprise dashboards and workflow-oriented applications.
• Experience with React Testing Library, Jest, Vitest, or comparable testing technologies.
• Strong experience with MariaDB/MySQL, including schema design, indexing, query optimization, and performance troubleshooting.
• Experience developing and consuming APIs in a microservices or service-oriented architecture.
• Experience with enterprise SSO/MFA and identity-management solutions.
• Experience integrating applications with Microsoft 365 and/or SharePoint.
• Experience with Section 508/WCAG accessibility requirements.
• Experience developing applications incorporating AI/ML, LLM, or agentic AI capabilities and integrating AI services through APIs.
• Familiarity with AI agent frameworks, agent orchestration patterns, retrieval-augmented generation (RAG), tool/function calling, structured outputs, evaluation, monitoring, and guardrails is a plus.
• Familiarity with human-in-the-loop AI workflows, CI/CD, DevSecOps practices, and containerized application environments.
• Familiarity with Posit (formerly RStudio) products and development environments is a plus.
• Experience working with data science, analytics, AI/ML, or research teams is a plus.
• Experience supporting federal government, healthcare, life-sciences, or other regulated environments is preferred. Agile/Scrum Experience
• Sprint planning and estimation
• Daily stand-ups
• Backlog refinement
• User stories and acceptance criteria
• Sprint reviews and demonstrations
• Retrospectives
• Iterative development and testing
• Code reviews
• Release planning and recurring software releases
• Collaboration with product owners, architects, QA, DevOps, and business stakeholders

Preferred Qualifications

• Experience integrating Python, C/C++, shell-based utilities, JavaScript/TypeScript applications, and relational databases in enterprise environments.
• Experience modernizing legacy applications through refactoring, API enablement, service decomposition, or incremental replacement strategies.
• Experience with legacy C/C++ build systems, libraries, compilers, debugging tools, and Linux-based development workflows.
• Advanced experience with React and TypeScript and modern React routing, state-management, and data-fetching approaches.
• Experience developing enterprise dashboards and workflow-oriented applications.
• Experience with React Testing Library, Jest, Vitest, or comparable testing technologies.
• Strong experience with MariaDB/MySQL, including schema design, indexing, query optimization, and performance troubleshooting.
• Experience developing and consuming APIs in a microservices or service-oriented architecture.
• Experience with enterprise SSO/MFA and identity-management solutions.
• Experience integrating applications with Microsoft 365 and/or SharePoint.
• Experience with Section 508/WCAG accessibility requirements.
• Experience developing applications incorporating AI/ML, LLM, or agentic AI capabilities and integrating AI services through APIs.
• Familiarity with AI agent frameworks, agent orchestration patterns, retrieval-augmented generation (RAG), tool/function calling, structured outputs, evaluation, monitoring, and guardrails is a plus.
• Familiarity with human-in-the-loop AI workflows, CI/CD, DevSecOps practices, and containerized application environments.
• Familiarity with Posit (formerly RStudio) products and development environments is a plus.
• Experience working with data science, analytics, AI/ML, or research teams is a plus.
• Experience supporting federal government, healthcare, life-sciences, or other regulated environments is preferred.
• Agile/Scrum Experience
• The candidate should be comfortable working as an active member of a cross-functional Agile/Scrum development team, including:
• Sprint planning and estimation
• Daily stand-ups
• Backlog refinement
• User stories and acceptance criteria
• Sprint reviews and demonstrations
• Retrospectives
• Iterative development and testing
• Code reviews
• Release planning and recurring software releases
• Collaboration with product owners, architects, QA, DevOps, and business stakeholders

Core Technical Skills

Responsibilities

• Design, develop, test, and maintain full-stack enterprise web applications.
• Develop front-end functionality using React, TypeScript, JavaScript, HTML5, and CSS3.
• Develop reusable, modular, responsive, and accessible React components.
• Develop server-side APIs, application services, and business logic.
• Design and implement RESTful APIs supporting front-end and system integrations.
• Implement server-side validation, error handling, logging, and application security controls.
• Implement authentication, authorization, and role-based access control (RBAC), including support for enterprise SSO/MFA.
• Develop and maintain application functionality using SQL and MariaDB/MySQL.
• Design and work with relational database tables, relationships, queries, views, indexes, and data structures.
• Develop and optimize SQL queries supporting application functionality, reporting, testing, and troubleshooting.
• Support database schema changes, data migration, validation, and troubleshooting.
• Develop dashboards, forms, workflow interfaces, search/filter functionality, reporting, and detailed record views.
• Integrate applications with enterprise document-management and other internal services, including Microsoft 365 and/or SharePoint where applicable.
• Develop interfaces and backend services supporting AI/ML, large language model (LLM), and AI agent capabilities, including human-in-the-loop review and approval workflows.
• Integrate AI/LLM and agent-based services through APIs and approved application interfaces, including tool/function calling, workflow orchestration, structured outputs, and application guardrails.
• Implement application logging, exception handling, auditing, and operational diagnostics.
• Write unit, integration, and automated application tests and participate in peer code reviews.
• Troubleshoot and optimize issues across the front end, backend, APIs, database, and integration layers.
• Support System Integration Testing (SIT), User Acceptance Testing (UAT), regression testing, and production deployment.
• Collaborate with DevOps engineers on CI/CD, build, deployment, configuration, and release processes.
• Integrate legacy C/C++, Python, shell, JavaScript, database, and modern web components through well-defined APIs and interfaces.
• Refactor and modernize legacy code incrementally while preserving required behavior, compatibility, security, and operational continuity.
• Analyze and understand existing legacy source code, interfaces, dependencies, build processes, and data flows before implementing changes.
• Develop and maintain shell scripts for Linux-based automation, application support, data processing, deployment, and operational tasks.
• Develop backend services, automation, data-processing utilities, and integration components using Python.
• Develop, maintain, troubleshoot, and enhance software written in C and C++, including existing legacy components and interfaces.
• Develop and troubleshoot applications in a Linux-based working environment.
• Use Visual Studio Code (VS Code) for application development, debugging, Git workflows, and related engineering activities.
• Create and maintain application and technical documentation.
• Participate actively in Agile/Scrum ceremonies, including sprint planning, daily stand-ups, backlog refinement, estimation, sprint reviews/demonstrations, and retrospectives.
• Support iterative software releases and respond to feedback identified during testing and stakeholder reviews.