Senior Infrastructure Engineer

We are seeking a Senior Infrastructure Engineer to join one of our software businesses within TAG Software Group. Working alongside the Infrastructure Manager, you will design, implement, secure, and support cloud and on-premises infrastructure across multiple products and customer environments. You will play a key role in improving reliability, security, automation, and scalability while supporting mission-critical SaaS applications used by customers worldwide. The successful candidate will be a hands-on engineer with experience in cloud platforms, networking, cybersecurity, automation, and DevOps practices, working closely with engineering, product, support, and customer success teams. ABOUT TAG SOFTWARE GROUP: TAG Software Group is a team of experienced investors and operators dedicated to acquiring, enhancing, and growing mission-critical software companies serving SMB, enterprise, and public sector customers. Founded as part of a permanent home for software companies, we don’t buy to sell. Our focus is on long-term partnerships that protect your legacy, employees, and customers. Our in-house team delivers an efficient, transparent, and seller-friendly process, ensuring speed and certainty of close. Once part of TAG, your company gains access to proven best practices, dedicated value-creation resources, and the extended ecosystem of our sister companies, including proprietary in-house technology including and — helping your business reach the next level. KEY RESPONSIBILITIES: Design, implement, and maintain secure, scalable cloud and on-premises infrastructure. Manage and support infrastructure across multiple software products and customer environments. Ensure the availability, performance, and reliability of mission-critical SaaS applications. Implement infrastructure security best practices, including vulnerability management, access controls, and compliance requirements. Automate infrastructure provisioning, configuration, deployment, and operational tasks using Infrastructure as Code (IaC) and scripting tools. Monitor infrastructure health, troubleshoot complex technical issues, and perform root cause analysis. Collaborate with software engineering teams to support CI/CD pipelines and DevOps initiatives. Optimize cloud infrastructure for performance, scalability, resilience, and cost efficiency. Design, maintain, and troubleshoot networking components, including firewalls, VPNs, DNS, and load balancing. Develop and maintain disaster recovery, backup, and business continuity solutions. Partner with Product, Support, and Customer Success teams to resolve infrastructure-related issues and improve customer experience. Evaluate, recommend, and implement new infrastructure technologies, tools, and best practices. Create and maintain technical documentation, operational procedures, and infrastructure standards. Provide technical leadership and mentorship to team members while contributing to continuous improvement initiatives. Participate in on-call support and incident response for production environments as required. Bachelor’s degree in Computer Science, Information Technology, Engineering, or equivalent experience. 7+ years of experience in infrastructure, cloud engineering, or DevOps roles. Strong experience with Azure and/or AWS. Experience managing Windows Server and Linux environments. Strong understanding of networking, security, VPNs, firewalls, and DNS. Experience with Infrastructure as Code (Terraform, Bicep, CloudFormation, or similar). Experience with Docker, Kubernetes, and CI/CD automation. Experience supporting production SaaS environments. Strong troubleshooting, communication, and stakeholder management skills. Preferred Qualifications Azure or AWS certifications. Experience with GitLab, GitHub, or Azure DevOps. Experience with cybersecurity, compliance, and monitoring platforms. Experience supporting customer-facing software platforms. WHY JOIN US: Join a stable, long-term software group that is built as a permanent home for mission-critical software companies—not a buy-and-sell investment model. Work on impactful, real-world infrastructure supporting mission-critical SaaS platforms used by customers across SMB, enterprise, and public sectors. Be part of a hands-on engineering culture where you directly influence cloud, on-premises, security, and DevOps architecture decisions. Collaborate closely with experienced engineering, product, support, and customer success teams in a highly cross-functional environment. Gain exposure to multiple software businesses and environments, offering variety, scale, and continuous technical challenge. Leverage shared best practices, tooling, and value-creation resources across a broader ecosystem of software companies. Contribute to improving reliability, scalability, security, and automation across diverse and evolving platforms. Join a group that prioritizes operational excellence, long-term growth, and sustainable engineering improvements over short-term gains. #TagSoftwareGroup