Engineer III, Software

Work Schedule Standard (Mon-Fri) Environmental Conditions Office Job Description Engineer III, Software As part of the Thermo Fisher Scientific team, you’ll discover meaningful work that makes a positive impact on a global scale. Join our colleagues in bringing our Mission to life every day by enabling our customers to make the world healthier, cleaner and safer. Position Summary We are seeking an Engineer III – DevOps Engineer with strong hands-on experience in Linux, AWS, infrastructure automation, CI/CD, and software packaging to build and operate secure, reliable, and scalable platforms supporting our software products. This is a hands-on engineering role focused on Linux systems engineering, AWS infrastructure, Terraform, CI/CD, software packaging and distribution, networking, containers, security, and production support. You will collaborate with software engineering, infrastructure, security, and other cross-functional teams to improve platform reliability, automation, security, and delivery efficiency. Key Responsibilities * Build, operate, secure, and continuously improve reliable, scalable, and cost-efficient AWS environments. * Design and maintain AWS networking including VPCs, subnets, routing, Transit Gateway, VPC endpoints, DNS, VPN, Direct Connect, security groups, network ACLs, AWS Network Firewall, and hybrid connectivity. * Build and maintain reusable Terraform modules and automated provisioning workflows for multi-account and multi-environment deployments. * Follow and contribute to engineering practices for Terraform state management, testing, code review, drift detection, policy enforcement, and controlled infrastructure changes. * Develop and improve CI/CD pipelines, Jenkins jobs, shared libraries, pipeline templates, release gates, and deployment automation using Jenkins, GitHub Actions, and related technologies. * Automate software build, packaging, validation, artifact publishing, promotion, release, and deployment workflows. * Build, maintain, and troubleshoot Linux software packages, including installation, upgrade, rollback, dependency management, and software distribution, particularly for Debian-based systems. * Automate system configuration, software installation, and environment management using Ansible, Chef, Puppet, or similar technologies. * Build, maintain, secure, and troubleshoot Linux platforms across cloud and on-premise environments. * Deploy and support containerized workloads using Docker, Kubernetes, and Amazon EKS. * Improve platform reliability through monitoring, observability, alerting, capacity planning, resilience improvements, and automation. * Implement security best practices for IAM, encryption, secrets management, vulnerability management, logging, compliance, and least privilege. * Troubleshoot complex issues across Linux, AWS, networking, CI/CD, packaging, and application deployment layers and participate in production incident investigation and resolution. * Independently own assigned platform and automation initiatives and participate in technical design reviews, incident reviews, and continuous improvement. * Collaborate with cross-functional engineering teams and share technical knowledge and guidance with other engineers. Education and Experience * Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related technical field, or equivalent practical experience. * 6–10 years of experience in DevOps, Linux Systems Engineering, Platform Engineering, Cloud Engineering, Site Reliability Engineering, or a related technical role. Core Competencies * Strong hands-on experience with Linux systems engineering and administration, particularly Debian and Debian-derived distributions such as Ubuntu. * Strong understanding of Linux internals, system services, process management, permissions, networking, storage, file systems, system configuration, and troubleshooting. * Experience building, maintaining, and distributing Debian (.deb) packages, with good knowledge of APT, dpkg, and dependency management. * Strong hands-on experience with AWS and Infrastructure as Code using Terraform. * Experience with AWS networking, security, firewalls, and private/hybrid connectivity. * Strong experience developing and maintaining CI/CD pipelines using Jenkins, GitHub Actions, or similar platforms. * Experience with configuration management, Git, Docker, Kubernetes, and Amazon EKS. * Proficiency with Bash, Python, or similar scripting languages for automation and troubleshooting. * Strong troubleshooting and root cause analysis skills across Linux, cloud infrastructure, networking, CI/CD, and software deployments. * Experience supporting production systems and resolving complex infrastructure and deployment issues. * Strong ownership, problem-solving, communication, and cross-functional collaboration skills.