NO 3RD PARTY FIRM / C2C CANDIDATES. DO NOT CALL/EMAIL TO ASK. AND NO, I CANNOT HIRE YOUR CONSULTANTS ON MY W2. WE PREFER FULLY ONSITE CANDIDATES. HOWEVER, FOR THE RIGHT CANDIDATE (AFTER 2-4 WEEKS OF ONSITE ONBOARDING), WE MAY BE FLEXIBLE TO ACCOMMODATE HYBRID ONSITE. THOUGH YOU WOULD STILL HAVE TO BE FULLY ONSITE DURING DEPLOYMENTS. THIS IS A CONTRACT TO HIRE ROLE PENDING MUTUAL FIT/PERFORMANCE. KORE1, a nationwide provider of staffing and recruiting solutions, has an immediate opening for a Full Stack Engineer: NodeJS, NextJS, APIs (REST/web hooks & GraphQL), + Mongo; AWS a + Position Overview: We are seeking a Full-Stack Engineer to design, develop, and maintain secure, scalable applications and integrations. You will play a key role in building a centralized API integration platform that connects internal systems, partner networks, e-commerce platforms, payment processors, and logistics providers. This role requires strong full-stack development skills. Key Responsibilities: • Develop and maintain full-stack applications using Next.js, Node.js, and MongoDB. • Contribute towards building and maintaining a centralized API gateway to unify internal and partner integrations. • Implement GraphQL for internal applications and REST/webhooks for partner/vendor-facing APIs. • Develop and manage standardized vendor and partner connectors (healthcare networks, e-commerce platforms, payment processors, logistics providers). • Help ensure role-based access control (RBAC), authentication, and tenant enforcement across all APIs. • Deploy and maintain applications and integration services on AWS Cloud (EC2, S3, Lambda, etc.). • Collaborate with product, design, and backend teams to deliver compliant, high-quality features. • Assist in maintaining HIPAA compliance in all applications and integrations. Required Skills & Qualifications • 5+ years of professional full-stack development experience. • Strong proficiency with Next.js, Node.js, and MongoDB. • Expertise with GraphQL (Apollo) for internal services and REST/webhooks for external integrations. • Strong problem-solving skills and ability to work independently Preferred Qualifications: • Bachelor's degree, preferably in Computer Science, Engineering, or related field. • Experience in healthcare, pharmacy, or health tech environments. • Understanding of PHI data handling, healthcare interoperability, and HIPAA compliance is helpful. • Background integrating with e-commerce platforms and payment gateways. • Experience building API gateways and integration platforms. • Prior work building multi-tenant, RBAC-secured API platforms. • Knowledge of authentication and authorization standards (OAuth, JWT). • Hands-on experience with AWS deployment and cloud scaling strategies. • Experience in fast-paced or startup environments. • Bilingual in Spanish is a plus Compensation depends on experience but is typically $60-70/hr.