Quantiphi

Full Stack Developer

Quantiphi$90K — $130K *
US-AnywhereRemote in United States
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5-10 years of full stack software development experience
  • Proficiency in React, TypeScript, and Next.js for frontend development
  • Experience using Python (FastAPI) and/or Node.js for backend development
  • Strong background in building REST APIs, microservices, and distributed systems
  • Hands-on experience with PostgreSQL and data modeling
  • Familiarity with cloud platforms such as GCP and/or Azure, along with Docker and Kubernetes administration
  • Knowledge of CI/CD practices and API lifecycle management

Responsibilities

  • Design and build scalable full stack applications encompassing both frontend and backend technologies
  • Architect and maintain RESTful APIs and microservices following best practices
  • Develop distributed systems utilizing event-driven architectures and messaging systems
  • Build LLM-powered applications integrating advanced workflows and frameworks
  • Collaborate with AI/ML teams to implement model serving and multi-agent systems
  • Ensure high engineering standards through thorough testing and CI/CD integration
  • Champion observability using modern logging and monitoring tools

Benefits

  • Impactful role at a leading AI-first digital engineering firm
  • Opportunities for skill development on complex technology challenges
  • Innovative work environment with a focus on research and patents
  • Exposure to cutting-edge AI, ML, and cloud technologies alongside industry giants
Full Job Description
Role: Full Stack Software Developer

Experience Level: 5-10 yrs

Work Location: US East/Canada (Remote)

Role Overview:

We're looking for a Full Stack Software Developer to design and build scalable, high-performance applications powering next-generation Agentic AI platforms.

In this role, you'll lead the development of API-first, distributed systems and contribute across the stack from backend microservices to modern frontend experiences. You'll partner closely with AI/ML teams to integrate LLM-driven workflows, RAG architectures, and multi-agent systems into production-grade applications.

This is a hands-on engineering role with strong ownership across architecture, developer experience, and system reliability.

Key Responsibilities:
  • Design and build scalable full stack applications using React, TypeScript, and Next.js on the frontend and Python (FastAPI) and/or Node.js on the backend
  • Architect and maintain RESTful APIs and microservices with strong versioning, backward compatibility, and API-first design principles
  • Develop distributed systems leveraging event-driven architectures, messaging systems (Kafka, Pub/Sub), and asynchronous processing
  • Build and integrate LLM-powered applications, including RAG pipelines, agentic workflows, and tool-calling frameworks (LangChain, LangGraph)
  • Collaborate with AI/ML teams to integrate model serving platforms and orchestrate multi-agent systems
  • Implement real-time capabilities using WebSockets, Server-Sent Events (SSE), or streaming frameworks
  • Ensure high-quality engineering standards across testing (TDD/BDD), CI/CD pipelines, and infrastructure-as-code
  • Deploy and manage cloud-native applications on GCP and/or Azure, leveraging Docker and Kubernetes
  • Champion observability and monitoring using logging, metrics, and tracing (e.g., OpenTelemetry)
  • Build developer-friendly tools including SDKs, documentation, and API portals
  • Mentor engineers and contribute to system design, architecture reviews, and best practices

Basic Qualifications:
  • 5-10 years of experience in full stack software development
  • Strong expertise in:
  • Frontend: React, TypeScript, Next.js
  • Backend: Python (FastAPI) and/or Node.js
  • Proven experience building REST APIs, microservices, and distributed systems
  • Hands-on experience with PostgreSQL and data modeling
  • Experience with Docker, Kubernetes, and cloud platforms (GCP and/or Azure)
  • Strong knowledge of CI/CD pipelines (GitHub Actions or similar)
  • Experience with API lifecycle management (authentication, versioning, rate limiting)
  • Solid understanding of system design, scalability, and performance optimization
  • Experience integrating or building applications with LLMs, RAG, or Agentic AI systems
  • Familiarity with LangChain, LangGraph, or similar frameworks

Other Qualifications (OQs):
  • Experience with:
    • LlamaIndex, advanced LangGraph workflows, or multi-agent orchestration
    • Prompt engineering and context engineering
    • Model Context Protocol (MCP) or agent interoperability frameworks
  • Exposure to GraphQL, gRPC, and advanced API design patterns
  • Experience with event-driven systems (Kafka, Pub/Sub, Redis)
  • Knowledge of vector databases (pgvector, Pinecone, Milvus)
  • Experience building real-time/streaming UIs (WebSockets, SSE)
  • Understanding of OAuth 2.0, OIDC, RBAC for secure systems
  • Strong testing practices (TDD, Playwright, contract testing)
  • Experience with OpenTelemetry or similar observability tooling
  • Familiarity with Domain-Driven Design (DDD) and API-first architecture

Healthcare Domain Experience (Nice to Have):
  • Experience working with FHIR R4, HL7 v2, or SMART on FHIR
  • Integration with EHR systems (e.g., Epic)
  • Understanding of HIPAA compliance and healthcare data privacy
  • Exposure to clinical workflows, CDS Hooks, or patient-facing applications
  • Experience building clinical decision support systems or healthcare interoperability solutions

What's in it for YOU at Quantiphi:
  • Make an impact at one of the world's fastest-growing AI-first digital engineering companies.
  • Upskill and discover your potential as you solve complex challenges in cutting-edge areas of technology alongside passionate, talented colleagues.
  • Work where innovation happens - work with disruptive innovators in a research-focused organization with 60+ patents filed across various disciplines.
  • Stay ahead of the curve immerse yourself in breakthrough AI, ML, data, and cloud technologies and gain exposure working with Fortune 500 companies.


If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

About Quantiphi

Quantiphi is an artificial intelligence and machine learning services company that helps businesses transform their operations through the use of AI. The company provides a range of services, including data engineering, machine learning, computer vision, natural language processing, and predictive analytics. Quantiphi was founded in 2013 and is headquartered in King of Prussia, Pennsylvania.
Learn more about Quantiphi
Size
500 employees
Industry
Founded
2013

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