Web Application Developer

Halian | Managed Services, Recruitment Agency & Contract Staffing; Bellevue (WA); On-site; USD 120,000 - 160,000; Full time

Job summary

Halian | Managed Services, Recruitment Agency & Contract Staffing is seeking an experienced Web Application Developer with Agentic AI expertise in Bellevue, WA. You will transform AI-generated prototypes into secure, scalable, production-ready applications leveraging Generative AI, LLMs, and Agentic AI workflows.

The role demands a strong full-stack background, modern web tech, cloud environments, API integrations, and AI-powered solutions to support complex business needs.

Qualifications

• Strong experience building modern web applications.
• Proficiency with HTML, CSS and modern front-end frameworks.
• Experience designing and consuming APIs and backend services.
• Experience deploying to cloud/hosted environments.
• Hands-on Generative AI and AI-powered app development.
• Understanding Agentic AI concepts and external integrations.
• Solid SDLC knowledge including testing, version control, and CI/CD.
• Excellent communication and stakeholder management.

Responsibilities

• Collaborate with stakeholders to define AI-driven application goals.
• Transform AI prototypes into secure, production-ready apps.
• Design and build modern front-end and supporting back-end services.
• Develop and integrate APIs and enterprise systems with AI capabilities.
• Create Agentic AI workflows with tool usage and multi-step reasoning.
• Review AI-generated code for security, scalability, and performance.
• Work with architects, security, data teams, and business leaders.
• Communicate architecture decisions, risks, and recommendations clearly.
• Stay current with emerging AI tech and propose innovative solutions.

Skills

HTML

CSS

Modern front-end frameworks

APIs & backend services

Cloud hosting

Generative AI

Agentic AI concepts

SDLC & CI/CD

Security awareness

Communication with stakeholders

Tools

Claude

OpenAI

Job description

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

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
• AI-powered application development

Understanding of Agentic AI concepts:

• External system integrations

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

Knowledge of:

• Application Security

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
• 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