Networking Hardware Systems Engineer

CodiLime

. Research and define how to implement client requirements and ideas best .

Posted 10/8/2026contractRemote • PolandMid-LevelSenior💰 PLN 18,000 - PLN 22,000 per monthWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong proficiency in Python for developing and maintaining test automation frameworks, particularly with pytest, while effectively collaborating with clients to gather requirements and troubleshoot defects. Possesses a solid understanding of low-level SDK APIs, physical router hardware, and networking concepts.

Highest-signal resume keywords

Python Application DevelopmentTest Automation with PytestLow-Level SDK API TestingRoot-Cause AnalysisC/C++ Source Code Analysis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PythonPytestTest AutomationRoot-Cause AnalysisC/C++API ValidationNetworking ConceptsTraffic GeneratorsHardware TestingAgentic Workflows

Soft Skills

CollaborationCommunicationProblem-Solving

Tools & Technologies

LLMsCopilotCodexSWIGIXIASpirentT-GenIperf

Industry Keywords

Test DesignDefect TroubleshootingRouter HardwareOptical ModulesFRUsNPUsABI CompatibilityShared-Library DependenciesProcess IsolationIP Routing

Tech Stack

Tools & technologies

PythonC++

About the role

Key responsibilities & impact

Research and define how to implement client requirements and ideas best
Engage directly with client architects and end-users through design calls and syncs to gather requirements, clarify edge cases, and shape the future of the testing tool
Develop and maintain a Python-based validation framework designed to test low-level SDK APIs
Use modern AI coding tools such as LLMs, Copilot, and Codex as the primary workflow to rapidly generate, refactor, and expand test scripts
Work with client-supplied hardware and tools
Collaborate in a project managed by the client with involvement from a CodiLime manager
Participate in early evening meetings with the US-based client when required

Requirements

What you’ll need

Strong experience with Python for building applications
Strong Python proficiency for building and maintaining test automation with pytest
Experience building pytest frameworks with fixtures, parametrization, markers, collection hooks, phase routing, timeouts, recovery, and artifact capture
Ability to read and analyze C/C++ source code to understand underlying hardware behavior
Understanding of physical router hardware, router components such as optical modules and FRUs, and NPUs and driver libraries
Strong root-cause analysis skills using logs, traces, test reports, service journals, core files, and system state
Experience testing low-level SDK APIs and hardware driver features across Python wrappers, native APIs, and physical hardware state
Strong QA background in test design, API validation, and defect troubleshooting
Understanding of agentic workflows, including plans, skills, MCPs, specialist agents, context management, and long-running task recovery
Experience integrating Python with native C/C++ libraries through SWIG or similar binding technologies, including awareness of ABI compatibility, shared-library dependencies, packaging, and process isolation
Hands-on experience with physical router hardware, router components such as optical modules and FRUs, and NPUs
Understanding of L2/L3 networking concepts, IP routing, and core protocols
Basic familiarity with traffic generators and analyzers, preferably IXIA/Spirent, T-Gen, or iperf
Ability to work with client-supplied hardware and tools
Availability for early evening meetings when required

Benefits

Comp & perks

Flexible working hours and approach to work: fully remotely, in the office or hybrid
Professional growth supported by internal training sessions and a training budget
Solid onboarding with a hands-on approach to give you an easy start
A great atmosphere among professionals who are passionate about their work
The ability to change the project you work on