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Full Stack Application Developer

Koantek
14 hours ago
Contract
On-site
Mesa, AZ

JobsCloseBy Editorial Insights

Koantek is seeking multiple experienced Full Stack Application Developers for a contract role that can be performed remotely in the USA. Focusing on designing modern SPAs, scalable backend services and REST APIs, with strong PostgreSQL integration. The ideal candidate blends solid engineering fundamentals with action, clear communication, and technical leadership to own features end to end. Front end uses React or Angular with TypeScript; back end may involve FastAPI, Flask, or Node.js. Nice to have Databricks Apps or data platform experience. To apply, tailor your resume to end-to-end projects, share links to live apps and APIs, and show collaboration with data engineers and product stakeholders.

Job Title: Full Stack Application Developer
Location: Remote-USA
Employment Type: Contract
Department: Engineering

Role 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 .
  • Build end-to-end application functionality spanning front-end, backend, APIs, authentication, and data layers.

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,