C Software Engineer, Python

CodiLime

C Software Engineer responsible for maintaining and optimizing enterprise router software. Collaborating with a passionate team remotely in Poland and focused on engineering skill development.

Posted 7/24/2026contractRemote • 🇵🇱 PolandMid-LevelSenior💰 PLN 18,000 - PLN 22,000 per monthWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong proficiency in C and Python for software development and test automation, with a focus on performance optimization and advanced debugging techniques. Capable of analyzing multi-threaded code and complex system dependencies while effectively communicating in English.

Highest-signal resume keywords

C ProficiencyPython Test AutomationAdvanced DebuggingBuild System ExpertiseMulti-Threaded Code Analysis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Golang DevelopmentC DevelopmentPython ProgrammingDebugging with GDBDebugging with ltraceProfiling with pprofAutomated TestingPerformance OptimizationError HandlingSystem Call Analysis

Soft Skills

Analytical SkillsPatienceTeam Communication

Tools & Technologies

BazelLogging ToolsMonitoring ToolsTelemetry Features

Industry Keywords

System OptimizationLegacy Script MaintenanceTechnical DiscussionsComplex System Dependencies

Tech Stack

Tools & technologies

GoPython

About the role

Key responsibilities & impact

Maintain core system components and drive optimization tasks focused on performance and speed
Work closely with logging, monitoring, and telemetry features, improving error handling and system visibility
Develop software mainly using Golang and C, while maintaining and gradually replacing legacy Bash scripts
Create automated tests using Python to cover regressions and bridge coverage gaps
Investigate complex bugs, track system calls, and analyze multithreaded dependencies in a codebase
Take part in technical discussions with the team to define how to best implement requirements

Requirements

What you’ll need

Hacker mindset: High level of patience and a strong ability to analyze multi-threaded code and complex system dependencies
Strong C proficiency: Deep practical knowledge of C as your primary development language, including experience with low level debugging
Build system expertise: Practical, hands-on experience with Bazel
Python skills: Experience in Python for test automation
Advanced debugging: Strong analytical skills with hands-on experience in GDB, ltrace, pprof
Language skills: English at least a B2 level for smooth team communication

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