Senior Fullstack Developer (AI)

Location: Harrisburg, PA, USA; 100% onsite

Salary: $65–$70/hour; other listed rates include $80–$90/hour and $100–$110/hour.

Company

hirify.global is recruiting a senior full-stack developer for enterprise application development and integration.

What you will do

• Design, develop, test, deploy, and maintain scalable, secure enterprise web applications.
• Build responsive and accessible interfaces with modern JavaScript frameworks and develop backend services with .NET/C# and Node.js.
• Design RESTful APIs, microservices, event-driven integrations, and enterprise system connections.
• Develop AI-enabled features using LLM APIs, prompt engineering, RAG, vector databases, function calling, and AI orchestration patterns.
• Deploy and operate cloud-native applications on Azure, including CI/CD, containers, serverless services, automated testing, monitoring, and DevSecOps practices.
• Lead technical design discussions, mentor developers, collaborate with architects and business stakeholders, and translate requirements into maintainable solutions.

Requirements

• At least 10 years of professional software development experience, including significant hands-on full-stack development.
• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related discipline, or equivalent practical experience.
• Experience designing and delivering complex enterprise applications in cross-functional enterprise IT environments.
• Strong knowledge of modern front-end and back-end technologies, cloud-native architecture, API development, database management, and enterprise integration.
• Experience with React, Angular, or Vue.js; .NET/C# or Node.js; REST, JSON, OAuth 2.0, and OpenID Connect.
• Experience with Microsoft Azure, CI/CD platforms, Docker, Kubernetes, serverless computing, infrastructure as code, and automated testing.
• Experience with SQL Server, including complex queries, stored procedures, data modeling, and performance optimization.
• Practical experience with AI-assisted development tools, Generative AI, intelligent automation, LLM APIs, RAG, AI agents, vector databases, and secure handling of enterprise data.
• Ability to apply object-oriented programming, design patterns, SOLID principles, clean architecture, and secure software delivery practices.

Culture & Benefits

• 100% onsite work in Harrisburg, Pennsylvania.
• Close collaboration with enterprise application teams, business stakeholders, architects, IT leadership, business analysts, solution architects, and product owners.
• Participation in Agile ceremonies, sprint planning, estimation, code reviews, and technical design sessions.
• Focus on responsible AI usage, confidential-information protection, human review of AI-generated outputs, and compliance with security and quality standards.