Senior Backend Engineer (Django, AI‑Driven Cyber Range)

Circadence; Boulder (CO); On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

Medical insurance

Vision insurance

Dental insurance

401(k)

Paid maternity leave

Paid paternity leave

Disability insurance

Job summary

Circadence Corporation is seeking a Senior Backend Engineer to advance RangeGPT’s backend systems. You will own schema design, API development, service architecture, and AI‑driven orchestration for scalable, reliable cloud workflows.

Targeting 7+ years of backend focus, you will design robust REST APIs, optimize PostgreSQL, and align with CI/CD pipelines. Collaboration with frontend teams and infrastructure automation is essential for success.

Qualifications

• 7+ years backend or full‑stack engineering experience with a strong backend focus.
• Proven production experience using Django (DRF, ORM, migrations, middleware).
• Strong knowledge of PostgreSQL schema design, indexing, migrations, and query optimization.
• Extensive experience building and optimizing REST APIs and backend service layers.
• Strong understanding of JSON serialization, API‑driven data modeling, and payload validation.
• Experience working with Docker and containerized development workflows.
• Familiarity with networking fundamentals including routing, service communication, and infrastructure components.
• Experience with infrastructure‑as‑code, CI/CD principles, and automated service provisioning.
• Solid software engineering fundamentals including testing, debugging, observability, and reliability engineering.

Responsibilities

• Design, implement, and maintain backend services using Python and Django, powering RangeGPT’s API, orchestration, and data layers.
• Lead PostgreSQL schema design and migrations, ensuring strong data modeling, performance, and long‑term evolution.
• Develop and enhance RESTful APIs consumed by a React‑based frontend and internal services.
• Create, manage, and manipulate complex JSON structures for API payloads, system configuration, and AI‑driven workflows.
• Build backend logic that drives cyber range creation, cloud resource provisioning, and infrastructure automation.
• Contribute to infrastructure‑as‑code workflows and backend automation pipelines supporting dynamic deployment.
• Implement backend components that account for networking, service interconnects, and environment‑aware logic.
• Collaborate closely with frontend engineers to ensure seamless integration between Django REST APIs and the React UI.
• Manage containerized development and runtime environments using Docker.
• Support CI/CD workflows, preferably using Azure DevOps.
• Participate in architecture discussions focused on scalability, modularity, reliability, and long‑term maintainability.

Skills

Python

Django

REST APIs

JSON modeling

PostgreSQL

Networking fundamentals

Testing observability

Software design

Team collaboration

Tools

Docker

Azure DevOps

Terraform

Ansible

Redis

RabbitMQ

Celery

LangGraph

Job description

Circadence Corporation is seeking a Senior Backend Engineer to advance RangeGPT’s backend systems. You will own schema design, API development, service architecture, and AI‑driven orchestration for scalable, reliable cloud workflows.

Targeting 7+ years of backend focus, you will design robust REST APIs, optimize PostgreSQL, and align with CI/CD pipelines. Collaboration with frontend teams and infrastructure automation is essential for success.