Halian | Managed Services, Recruitment Agency & Contract Staffing

Web Application Developer

Bellevue, WA • Posted 2 days ago
Onsite Contract Telecommunications

Web Application Developer – Agentic AI

Location: Bellevue, WA (100% Onsite)

6+ Month Contract

US Citizen and Green Card holders Only - W2 Role


About the Role

We are seeking an experienced Web Application Developer with Agentic AI expertise to join a cutting-edge team focused on building intelligent, enterprise-grade web applications. This role will involve transforming AI-generated prototypes and concepts into secure, scalable, and production-ready solutions while leveraging Generative AI, LLMs, and Agentic AI workflows.

The ideal candidate will be a strong full-stack developer with experience in modern web technologies, cloud environments, API integrations, and AI-powered applications.


Key Responsibilities

  • Collaborate with business stakeholders to understand application goals, requirements, and AI-driven concepts.
  • Convert AI-generated prototypes and HTML artifacts into maintainable, enterprise-grade web applications.
  • Design and develop modern front-end applications and supporting backend services.
  • Build and integrate APIs, enterprise systems, databases, authentication services, and AI capabilities.
  • Develop Agentic AI workflows involving tool usage, multi-step reasoning, and external system integrations.
  • Review and enhance AI-generated code for security, scalability, maintainability, and performance.
  • Partner with architects, developers, security teams, data teams, and business leaders to deliver business solutions.
  • Communicate technical concepts, architecture decisions, risks, and recommendations to both technical and non-technical stakeholders.
  • Stay current with emerging AI technologies and recommend innovative solutions that improve business outcomes.


Required Skills

Must Have

Strong experience developing modern web applications

Proficiency in:

  • HTML
  • CSS
  • JavaScript and/or TypeScript

Experience with modern front-end frameworks

Experience developing and integrating APIs and backend services

Experience deploying applications in cloud/hosted environments


Hands-on experience with:

  • Generative AI
  • Large Language Models (LLMs)
  • AI-powered application development

Understanding of Agentic AI concepts:

  • Tool calling
  • Multi-step workflows
  • External system integrations

Experience converting prototypes or proof-of-concepts into production applications


Knowledge of:

  • Authentication & Authorization
  • Application Security
  • Enterprise deployment practices

Experience integrating enterprise APIs, databases, and systems

Strong SDLC knowledge:

  • Testing
  • Version Control
  • CI/CD & Deployment

Excellent communication and stakeholder management skills


Preferred Qualifications

  • Hands-on experience with Claude
  • Experience with OpenAI and other enterprise LLM platforms
  • React, Next.js, or similar frameworks
  • Secure enterprise application development
  • Cloud hosting and deployment experience
  • AI agent frameworks and orchestration tools
  • Rapid prototyping and iterative development
  • Strong product mindset and focus on user experience
  • Experience working with cross-functional business and technical teams


Web Application Developer in Bellevue at Halian | Managed Services, Recruitment Agency & Contract Staffing

This position is listed as contract and onsite. It was posted 2 days ago.

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