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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # C# Linux Back-End Developer - **Company:** American Tel-A-Systems, Inc. - **Location:** McFarland, WI, United States - **Experience:** Experienced - **Contract:** Temporary contract - **Skills:** C (Programming Language), Java (Programming Language), Amazon Web Services, Microsoft Azure, Bash Shell, C Sharp (Programming Language), C++ (Programming Language), Ubuntu (Operating System), CentOS, Cloud Computing, Software Documentation, Code Review, Computer Programming, Computer Networks, Continuous Delivery, Continuous Integration, Linux, Python (Programming Language), Linux System Administration, Linux Distribution, Microsoft Visual Studio, Red Hat Enterprise Linux, Prometheus, Software Engineering, TCP/IP, Virtualization Technology, WebSocket, Data Logging, Scripting, Load Balancing, Firewalls (Computer Science), Backend, Git, Containerization, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Software Version Control, Docker - **Published:** June 6, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=7de42ba918c683a6 ## About the Role Do you have a Associate's degree?, * Bachelor's degree in Computer Science, Information Technology, or related field preferred, Associate degree required * 3-6 years of hands-on experience working with C, C#, C++, Java/Linux systems and infrastructure required * Strong proficiency in Linux distributions such as Red Hat, Ubuntu, or CentOS * Hands-on experience with configuration management tools Visual Studio, CoPilot, Claude * Experience with security best practices and hardening techniques for Linux environments * Experience with cloud platforms such as AWS and Azure * Experience with Asterisk, SIP, WebSockets * Knowledge of Agnostic tools and Agentic Programming * Knowledge of virtualization and logging tools such as Prometheus * Knowledge of containerization technologies such as Docker or Kubernetes * Knowledge of performance tuning and optimization techniques * Understanding of networking concepts like TCP/IP, firewalls, and load balancing * Familiarity with scripting languages such as Bash or Python * Familiarity with continuous integration and delivery (CI/CD) pipelines * Familiarity with version control systems (Git) and collaborative development practices * Excellent problem solving and troubleshooting skills with a methodical approach * Strong communication and collaboration abilities to work effectively across teams * Remarkable time-management skills * Experience in an answering service or healthcare environment helpful Amtelco complies with all federal laws regarding employment eligibility verification. All employees must maintain valid authorization to work in the United States throughout their employment. Employees whose work authorization is temporary are responsible for ensuring it remains valid and for providing updated documentation before the current authorization expires. Amtelco does not provide immigration sponsorship for work authorization (for example, H-1B, TN, or similar employment visas). Employment cannot continue if valid work authorization cannot be maintained., * Associate (Required) Experience: * C# development on Linux: 3 years (Required) Ability to Commute: * McFarland, WI 53558 (Required) Work Location: Hybrid remote in McFarland, WI 53558 ## Description We're actively seeking a skilled Mid-Level C#/Linux Back-End Developer in our Software department that will ultimately contribute to our mission of working with our family of customers to provide the very best products and support while creating a successful long-term partnership. We are looking for a programmer who can pragmatically plan, design, and deliver great applications and functionality, with an eye to the future. This is an engineering and development position. This full-time position is based at Amtelco's corporate headquarters in McFarland, WI and reports to our VP of Software Development and Team Lead. Determined by your director, the benefit of a hybrid workplace model occurs at different times for each employee based on job performance. How will I make an impact? * Design, implement, and maintain highly available and scalable Linux-based infrastructure solutions * Work independently and collaboratively with the C# server development team to design, develop and troubleshoot back-end components of Amtelco's communications applications * Troubleshoot and resolve complex system issues, ensuring minimal downtime and disruption to critical operations * Stay current with Linux technologies, tools, and industry trends to drive continuous improvement * Engage in outside-the-box thinking to provide high value of service to clients * Alert colleagues to emerging technologies or applications and the opportunities to integrate them into operations and activities * Participate in code reviews with the development team members and with senior software engineers * Conduct functionality, integrity, and security testing on all code produced as a step in the software development process * Work with the software documentation team to develop system administration and user-reference guides and online help files * Participate in customer calls when needed (e.g., perform demos, troubleshoot, discuss future enhancements/developments) * Assist the field engineering team in troubleshooting customer-reported issues * Other duties as assigned ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Local Candidates vs International Talent - Building the Very Best Dev Team](https://www.wearedevelopers.com/videos/1067-local-candidates-vs-international-talent-building-the-very-best-dev-team) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)