Hybrid Senior Solutions Test Engineer

at Digi International

• Job title: Senior Solutions Test Engineer
• Job type: Full Time
• Experience level: Senior
• Salary: $95,000 - $149,000 per year
• Degree requirement: Bachelor's Degree
• Tech skills: AWS, Cloud, Linux, Python, TCP/IP
• Location requirements: Hybrid, Hopkins, United States

About the role

• Senior Solutions Test Engineer leading validation of next-generation MSP network solutions. Collaborating across teams to ensure high standards for reliability and performance in complex environments.

Responsibilities

• Lead testing and validation of large-scale MSP network infrastructures built on TCP/IP, including VPN technologies such as IPsec, GRE, and Multicast.
• Design and execute test strategies for hybrid deployments, integrating on-premises infrastructure with AWS cloud services.
• Validate complex cellular solutions involving hardware, firmware, operating systems, and IP networking.
• Own end-to-end solution quality, ensuring all components work together under real-world conditions.
• Define comprehensive test plans, test strategies, and acceptance criteria aligned with product and customer requirements.
• Design, build, and maintain test systems including: test automation frameworks, custom hardware test setups, network simulation and traffic generation tools.
• Identify gaps in test coverage and proactively improve testing methodologies.
• Develop and maintain test automation using Python, Bash, and related scripting languages.
• Build tooling to validate performance, scalability, failover, resiliency, and long-running stability.
• Integrate automated testing into CI/CD pipelines where applicable.
• Perform deep root-cause analysis of complex failures across hardware, software, and network layers.
• Clearly document issues, reproduce defects, and work closely with development teams to drive resolution.
• Champion quality throughout the product lifecycle, advocating for design improvements and risk mitigation.
• Partner closely with software, firmware, hardware, DevOps, product management, and support teams.
• Translate customer requirements and field scenarios into actionable test cases.
• Provide technical guidance and mentorship to other test and engineering team members.

Requirements

• 10+ years of experience in test engineering, systems validation, or network solutions testing
• Strong expertise in TCP/IP networking and large-scale IP network architectures
• Hands-on experience with VPN technologies, including IPsec, GRE, and Multicast
• Proven experience testing MSP-grade or carrier-class solutions
• Strong scripting skills in Python and Bash for automation and tooling
• Experience with scalability, performance, and soak testing in production-like environments
• Proven ability to troubleshoot and analyze complex, multi-layer system failures
• Linux systems knowledge and experience with network test tools (traffic generators, packet capture, protocol analyzers)
• Excellent communication skills with the ability to explain complex technical issues to diverse audiences
• Highly organized, detail-oriented, and capable of driving large test initiatives to completion.

Benefits

• Total Rewards package including a short-term incentive program
• New hire stock award
• Paid parental leave
• Open (uncapped) PTO
• Hybrid work environment
• Competitive medical, health & wellbeing and compensation offerings