Sr. FullStack Consultant

OnPoint Insights; North Carolina; Hybrid; USD 120,000 - 180,000; Full time

Job summary

OnPoint Insights is seeking a Sr Fullstack Consultant to design, build, and maintain backend services and REST APIs using FastAPI. The role includes async data access with SQLAlchemy and PostgreSQL, background job orchestration with arq/Redis, and LLM provider integration.

You will support the React/TypeScript frontend with well-documented APIs, containerize with Docker Compose, and ensure robust security with JWT/OAuth/SAML. Durham, NC-based hybrid position with in-office collaboration.

Qualifications

• Experience building web services/REST APIs using modern frameworks.
• Strong written and verbal communication skills for cross-functional collaboration.
• Ability to troubleshoot across the stack end-to-end.
• Experience with containerized deployments and cloud flavors.

Responsibilities

• Design, build, and maintain backend services and REST APIs using FastAPI.
• Implement async data access with SQLAlchemy and PostgreSQL, including migrations.
• Operate background-job pipelines (arq/Redis) for Spark, scoring, and LLM tasks.
• Integrate multiple LLM providers behind a swappable interface.
• Support React/TypeScript frontend with stable API contracts.

Skills

Web services

Communication

Git/CI/CD

Problem solving

Education

Bachelor's Degree in CS/SE

Master's Degree preferred

Tools

FastAPI

Flask/Django

SQLAlchemy (async)

PostgreSQL

Redis

Celery/ARQ

Docker / Docker Compose

Playwright

JWT/OAuth/SAML

Job description

OnPoint is urgently hiring for a Sr Fullstack Consultant.

Responsibilities:

• Design, build, and maintain backend services and REST APIs using FastAPI
• Implement asynchronous data access with SQLAlchemy (async) and PostgreSQL, including schema migrations (Alembic)
• Build and operate background-job pipelines (arq / Redis) that orchestrate long-running Spark, scoring, and LLM tasks with reliable status tracking
• Integrate multiple LLM providers (Anthropic, OpenAI, Google, OpenRouter, and self-hosted vLLM/Ollama) behind a clean, swappable provider interface
• Implement server-side rendering/export of persona deliverables (headless Chromium via Playwright → PDF/PNG)
• Build and maintain enterprise authentication and authorization (JWT, OAuth, SAML SSO)
• Support the React/TypeScript frontend by delivering well-documented, stable API contracts; contribute to frontend work as needed
• Containerize and operate the stack with Docker Compose (Postgres, Redis, backend, worker, frontend)
• Write clean, tested, well-documented code and contribute to engineering standards and best practices
• Independently troubleshoot and resolve issues across the stack, from API to worker to data layer
• Communicate technical trade-offs effectively to both technical and non-technical stakeholders
• All other duties as required

For this role you will need

• Bachelor's Degree in computer science, software engineering, or a related field
• Strong experience building web services / REST APIs (FastAPI, Flask, or Django)
• Solid experience with relational databases (PostgreSQL) and ORMs (SQLAlchemy), including async patterns
• Experience with background job/queue processing and caching (Redis, Celery/arq, or similar)
• Experience containerizing and running applications with Docker / Docker Compose
• Proven ability to independently troubleshoot and resolve complex issues across an application stack
• Clear, effective communication skills and the ability to collaborate across technical teams and business stakeholders
• Ability to operate effectively in a fast-paced environment with changing priorities

Preferred Qualifications

• Master's Degree in computer science or a related field
• Experience integrating LLM / GenAI APIs and building AI-driven application features
• Experience with React / TypeScript frontends
• Experience with authentication standards (OAuth2, SAML, JWT) in enterprise environments
• Exposure to PySpark or data-intensive Python workloads
• Prior experience in healthcare, pharmaceutical, or other regulated/compliance-sensitive domains

Job Location

This role is based in our Durham, NC office. Currently this job is a hybrid role requiring at least three days per week in the office. In office requirements could increase based on business needs.