SW Developer (Python),

Warrenville, IL - USA

Monthly Salary: Not Disclosed

Posted on: 18 hours ago

Vacancies: 1 Vacancy

Job Summary

Responsibilities:

1) Python Development & Automation

Architect and build network automation frameworks using Python 3 with a focus on async patterns (asyncio aiohttp) and concurrency
Develop network device interaction libraries using Netmiko Nornir Paramiko and NAPALM
Build internal tooling and REST APIs using FastAPI or Flask to expose automation workflows to upstream systems
Write robust testable code - unit tests with Pytest structured logging and exception handling throughout
Package and version automation tools using standard Python project conventions ( Poetry/pip)

2) Network Configuration & Compliance

Automate multi-vendor device configuration using YANG models RESTCONF NETCONF and vendor-specific APIs
Build and maintain structured configuration templates using Jinja2 YAML and JSON
Develop configuration compliance scripts that validate device state against golden configs and alert on drift
Integrate automation with routers (Cisco IOS-XE/XR Junos) switches and firewalls across lab and production
Automate network security platform workflows - firewall rule deployment NAC policy changes segmentation validation

3) Infrastructure-as-Code & CI/CD

Implement Infrastructure-as-Code (IaC) patterns with Ansible playbooks and Terraform network modules
Build and maintain CI/CD pipelines (GitLab CI / GitHub Actions) that lint test and deploy network automation code
Manage infrastructure state in Git - enforce GitOps workflows for configuration versioning and change management

4) Collaboration & Operations

Partner with network engineers who work daily with BGP OSPF MPLS and IP fabrics to identify automation opportunities
Support lab and production environments - troubleshoot automation failures as well as underlying Layer 2 3 network issues
Document automation architecture API contracts runbooks and operational procedures

Qualifications:

Bachelors degree in Computer Science Information Technology or related field (or equivalent hands-on experience)
Strong production-tested Python scripting skills - you write clean documented version-controlled code
Experience with network automation libraries: Netmiko NAPALM Nornir or equivalent
Solid understanding of REST APIs HTTP semantics and building or consuming API-driven workflows
Proficiency with YAML JSON and Jinja2 templating for configuration management
Working knowledge of Git and collaborative development workflows (branching PRs code review)
Hands-on experience with Ansible for network device automation
Familiarity with NETCONF / RESTCONF and YANG data models
Understanding of OSI layers 1 4 and core protocols (Ethernet IP TCP/UDP OSPF/BGP at an operational level)

Nice to Have

Experience with BGP route policy MPLS/SR or service provider network architectures
Exposure to Terraform for network infrastructure provisioning
Experience automating firewalls NAC platforms or network segmentation tooling
Exposure to containerized environments (Docker Kubernetes) and network overlays (VXLAN)
Familiarity with network telemetry: gNMI gRPC streaming telemetry or OpenTelemetry
Experience with telecom or service-provider environments

Responsibilities: 1) Python Development & Automation Architect and build network automation frameworks using Python 3 with a focus on async patterns (asyncio aiohttp) and concurrency Develop network device interaction libraries using Netmiko Nornir Paramiko and NAPALM Build internal tooling and...