Full Stack Application Developer

Job Title: Full Stack Application DeveloperLocation: Remote-USA Employment Type: Contract Department: EngineeringRole Overview: Koantek is seeking multiple experienced Full Stack Application Developer to design and build modern, production-ready applications and user experiences. This role requires strong hands-on experience developing Single Page Applications (SPAs), building scalable backend services and APIs, and working with relational databases. The ideal candidate combines strong application engineering fundamentals with a bias toward action, excellent communication skills, and technical leadership. Experience with Databricks Apps and the broader Databricks platform is highly desirable but not required.Key Responsibilities:Front-End & Application Engineering: Design, develop, and deploy modern Single Page Applications (SPAs) using frameworks such as React, Angular, or similar technologies. Build intuitive, responsive, and maintainable front-end experiences using modern JavaScript/TypeScript development practices.Backend, APIs & Databases: Develop scalable backend services and REST APIs using frameworks such as FastAPI, Flask, Node.js, or similar technologies. Design and integrate applications with relational databases, with a strong emphasis on PostgreSQL.Architecture & Collaboration: Collaborate with data engineers, platform engineers, architects, product stakeholders, and customers to translate business requirements into working applications. Develop applications and user experiences that integrate seamlessly with data and analytics platforms. Drive technical decisions, produce clean, well-tested code, and contribute to engineering standards and best practices. Take full ownership of deliverables, moving projects from initial concept through production deployment.Qualifications:Must-Have Qualifications: Full-Stack Expertise: Strong professional experience in full-stack application development. Front-End Proficiency: Demonstrated experience designing/building production SPAs using React, Angular, or equivalent alongside JavaScript and TypeScript. Backend & API Mastery: Hands-on experience building backend services and REST APIs using FastAPI, Flask, Node.js, or equivalent frameworks. Database Experience: Strong experience with relational database design, queries, performance optimization, and integration (PostgreSQL preferred). Modern Architecture: Solid understanding of modern web architecture, API integration, authentication, security, testing, and deployment practices. Autonomy: Ability to independently take a feature or application from concept through production delivery.Nice-to-Have Qualifications: Experience developing and deploying Databricks Apps or working with the Databricks Data Intelligence Platform. Familiarity integrating applications with custom Databricks APIs, SQL Warehouses, Unity Catalog, Databricks SQL, Delta Lake, or Lakehouse architectures. Experience building data-intensive or analytics-focused web applications. Cloud application development experience with AWS, Azure, or GCP. Experience with containers.