Jobs in the United States

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Added 23 hours ago
Staff Software Engineer
Visa Technology and Operations LLC
Austin, TX
Build, enhance, and identify new developer tools to support programs and applications.
Added 23 hours ago
GD
Software Engineer I
Glidewell Dental
Irvine, CA
- $82,000 to $110,000 USD / year
Creates unit and end-to-end integration tests to ensure applications function according to requirements and Glidewell best practices.
Added 23 hours ago
A
Senior Solution Architect
Akur8
New York City, NY · Chicago, IL · Boston, MA · Atlanta, GA
- $275,000 to $325,000 USD / year
…guide clients from technical discovery through onboarding, integration, and…
Added 23 hours ago
Principal Cybersecurity Engineer - Enterprise Security Engineering
Workday, Inc.
GA
…SaaS security posture management (SSPM), and the governance of developer tools and emerging AI technologies. In the year ahead, the team will focus on expanding agentic automation…
Added 23 hours ago
AA
Team Lead - Application Development
ARI Automotive Rentals Inc
Remote, United States
- $105,050 to $149,700 USD / year
Drive the transition from traditional flat‑file inbound/outbound processes toward API‑driven integration models, ensuring new solutions align with cloud architecture standards and support…
Added 23 hours ago
E
Consulting - TC - Digi Engg - Full Stack Eng - Serv Del - Manager - Multiple Positions - 1718314
EY
Charlotte, NC
- $154,669 USD / year
…competitive environment. Leverage Microservices, Cloud, Omni channel integration, API Management and open-source technologies to enable end to end automation. Assist engagement teams…
Added 23 hours ago
Web Application Developer
SAIC
Reston, VA
QVine, an SAIC company, is seeking an experienced Full Stack Web Application Developer to join our team. This role involves hands-on technical expertise in building modern, scalable web…
Added 23 hours ago
AI SOLUTIONS DEVELOPER PANUS
All Kingspan and Affiliate Companies
Deland, FL
We are looking for an AI Solutions Developer for our Deland, FL office!
Added 23 hours ago
AI Full Stack Developer
CACI
Dayton, OH · Dayton
· Backend Development: Advanced proficiency in Python and API frameworks (e.g., FastAPI, Flask) to build the core logic and connect user interfaces to AI models.
Added 23 hours ago
Full Stack Developer
TISTA Science and Technology Corporation
Remote-United States
TISTA Science and Technology is seeking a Full Stack Developer to join our growing team.
Added 23 hours ago
Full Stack Developer
TISTA Science and Technology Corporation
Remote-United States
TISTA Science and Technology is seeking a Full Stack Developer to join our growing team.
Added 23 hours ago
Full Stack Developer
TISTA Science and Technology Corporation
Remote-United States
TISTA Science and Technology is seeking a Full Stack Developer to join our growing team.
Added 23 hours ago
Full Stack Developer
TISTA Science and Technology Corporation
Remote-United States
TISTA Science and Technology is seeking a Full Stack Developer to join our growing team.
Added 23 hours ago
Full Stack Developer
TISTA Science and Technology Corporation
Remote-United States
TISTA Science and Technology is seeking a Full Stack Developer to join our growing team.
Added 23 hours ago
Enterprise Solution Architect
TISTA Science and Technology Corporation
Remote-United States
Architect a secure, scalable, governed centralized integration platform supporting near-real-time, API, event-driven, messaging, batch, and legacy exchanges.
Added 23 hours ago
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Sr Guidewire PolicyCenter BillingCenter Developer role at Hartford CT
IPolarity LLC
Whippany, NJ
- $50 to $55 USD / hour
Hiring: Senior Guidewire PolicyCenter / BillingCenter Developer
Added 23 hours ago
Product Engineer II
Saddleback Communications
Scottsdale, AZ
…Vendors. The Engineer II exercises judgment in solution design, integration strategy, and technical documentation…
Added 23 hours ago
Sr. Principal Software Development Analyst – Quality Engineering & Business Process Integration
CORP-Corporate Office
United States
The Sr. Principal Software Development Analyst – Quality Engineering & Business Process Integration operates as a senior individual contributor at a senior principal level, providing…
Added 1 day ago
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Columbus, IN
Design and implement modern cloud-native, API-driven, event-based, and microservices-enabled solutions that accelerate digital transformation and enable future growth.
Added 1 day ago
Data Analyst, Senior
Booz Allen Hamilton_United States
Wharton, NJ
Experience with Python, including Pandas, NumPy, API integration, SQL, ETL, and ELT
Added 1 day ago
Systems Integration Engineer
United States_641_Semi-Mo/Bi-Wk_USD
Annapolis Junction, MD · Fort Meade, MD
Designs, develops, and implements solutions for software integration projects. Coordinates applications across functions or between organizations. Ensures the integration of projects meet…
Added 1 day ago
Senior Data Engineer
Datavail Corporation
Remote, United States
Added 1 day ago
Fullstack Software Engineer (Frontend Focused)
Ampa
Remote, United States
API Integration: Develop and maintain APIs for frontend-backend communication.
Added 1 day ago
Mobile Software Engineer Intern - Summer 2027
Resideo
Austin, TX
Experience with continuous integration tools such as GitHub Workflows
Added 1 day ago
.Net Developer (Copilot)
Aperia
Alpharetta, GA · Omaha, NE
We are seeking an experienced Software Developer with expertise in Microsoft Copilot Studio, C#/.NET, and Microsoft Azure to join our growing development team. This role focuses on…

SAIC

Web Application Developer

Reston, VA, United States

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Job details

Posting language: English
Posted: Nov 2, 2026

Original job description

QVine, an SAIC company, is seeking an experienced Full Stack Web Application Developer to join our team. This role involves hands-on technical expertise in building modern, scalable web applications with a focus on AI-driven features. The ideal candidate combines strong front-end development skills in ReactJS with robust Python backend experience, including the design and integration of LLM-powered applications using LangChain, LangGraph, and LangSmith.

Key Responsibilities:

Front-End Development: Design, build, and maintain responsive, user-friendly web interfaces using ReactJS, including state management, component architecture, and integration with RESTful and streaming APIs.
Python Backend Development: Develop and maintain scalable backend services in Python, exposing clean APIs to support front-end and AI-driven functionality.
LLM Application Engineering: Design, implement, and optimize AI-powered features using LangChain and LangGraph, including building conversational agents, retrieval-augmented generation (RAG) pipelines, and multi-step agentic workflows.
API Design & Integration: Build and maintain well-documented APIs that connect front-end applications with backend services and third-party LLM providers.
CI/CD & Deployment: Contribute to continuous integration and continuous delivery pipelines to streamline code deployment, testing, and release cycles for web applications.
Cloud Deployment: Deploy and maintain web applications and backend services in cloud environments (AWS and/or Azure), ensuring high availability, security, and cost efficiency.
Security & Compliance: Collaborate with the cybersecurity team to embed best practices into the development lifecycle, including secrets management, secure API design, vulnerability scanning, and compliance automation.
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.
Active Top Secret clearance.
Proven experience building production web applications with ReactJS and modern JavaScript/TypeScript.
Strong proficiency in Python, with experience developing backend services and APIs (e.g., FastAPI, Flask, or Django).
Hands-on experience with LangChain, LangGraph, and LangSmith, or comparable LLM orchestration and observability frameworks.
Familiarity with vector databases, embeddings, and retrieval-augmented generation (RAG) architectures.
Experience with CI/CD pipelines and cloud deployment on AWS or Azure.
Understanding of secure development practices and compliance requirements.

Desired

TS/SCI with polygraph preferred.

SAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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More about this job

Skills

Front-end development
Python
LangChain
Back-end development
API development
CI/CD
AWS
Microsoft Azure
Regulatory compliance
Cybersecurity
JavaScript
TypeScript
Flask
Django

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