1,000+ matching jobs for “Application Support Engineer | Linux”How results work Exact titles rank first, then title variations and keywords in descriptions. These labels aren't qualification scores. Without keywords, recently added jobs appear first.
As a Systems Engineer Monitoring & Reporting you will ensure effective monitoring, reporting, and visibility of the health, …
Added Oct 27, 2026
We are seeking a versatile and collaborative Java Software Engineer to join our Missions & Insights team. In this role, you will design, build, and maintain robust, scalable …
Added Nov 3, 2026
AEP
American Electric Power +1 location
Pay posted by employer $116,255–$151,132.50
… high quality Computer, Network, Storage and End-User Infrastructure technology solutions, on-going support to the business. Independently completes and leads the largest and most complex infrastructure project …
Added Oct 27, 2026
+2 locations
Pay posted by employer $168,200–$310,100 per year
The Senior Security Engineer position will be part of the Enterprise Security organization consisting of IAM professionals across …
Added Oct 27, 2026
Pay posted by employer $136,300–$199,900 per year
… principles, with a deep understanding of software architecture and design patterns. Proven expertise in Linux system programming, including development of system-level software and automation using Shell and Python …
Added Oct 15, 2026
+1 location
Pay posted by employer $96,700–$159,600
… - $159,600.00 Target Openings 1 What Is the Opportunity? Travelers is seeking a Mainframe Network Engineer to join our organization as we grow and transform our Enterprise Technology Solutions organization, Our …
Added Oct 27, 2026
Pay posted by employer $81,000–$111,500 CAD per year
… reliable technology services. This role partners closely with Oracle, Network, Compliance, Security, and Application teams to execute projects, maintain operational excellence, and contribute to continuous improvement …
Added Oct 15, 2026
Pay posted by employer $107,900–$195,050
Product Engineering & Sustainment Provide lifecycle engineering support for mission-critical SIGINT applications operating in Linux and Windows environments. Support systems …
Added Nov 3, 2026
+7 locations
Pay posted by employer $197,300–$313,700 per year
… research engineers to bring cutting-edge theory into customer-facing practice. Build tools and pipelines to support ML and AI efforts. Design, build, deploy, and maintain production services, like APIs, UIs, agentic …
Added Oct 28, 2026
… design, and documentation of deliverable FPGA embedded processing at Raytheon. In this role as an FPGA Engineer , you will develop FPGA designs for all major vendors and device families including AMD, Altera, and …
Added Oct 27, 2026
FNI
Fidelity National Information Services +1 location
You will support a next-generation, AI-enabled banking platform used by Tier-1 financial institutions. This is a hands-on, …
Added Nov 3, 2026
FNI
Fidelity National Information Services
You will support a next-generation, AI-enabled banking platform used by Tier-1 financial institutions. This is a hands-on, …
Added Nov 3, 2026
… to join the Receiver/ Exciter & Processing Architecture (REPA) Department as a Principal Embedded Software Engineer . The department’s primary goal is to design, develop, and support land and sea-based radar systems. We are …
Added Oct 27, 2026
Pay posted by employer $122,000–$207,000 USD
… SRE teams to establish configuration baselines, security standards, and compliance policies. Develop and support Infrastructure as Code using technologies such as Terraform, CloudFormation, and ARM/Bicep. Troubleshoot …
Added Oct 28, 2026
Pay posted by employer $116,300–$174,500
… are determined after funding confirmation. Northrop Grumman is seeking an experienced Sr Principal Software Engineer to join our dynamic team. This position will support our Aeronautics Systems sector in Oklahoma City, OK. …
Added Nov 3, 2026
Pay posted by employer $140,000–$240,000
… for product to constantly measure their reliability in production and help prioritize backlog work 20% Support & Enablement: Fields questions from other product teams or support teams Monitors tools and participates in …
Added Oct 16, 2026
AIG
American International Group +1 location
At AIG, we are reimagining the way we help customers to manage risk. Join us as a Database Security Engineer to play your part in that transformation. It’s an opportunity to grow your skills and experience as a …
Added Nov 3, 2026
… closely with Sales Executives and consult with other team members to ensure mutual objectives are met in support of client happiness. Communicate consistently with clients throughout the contract lifecycle by addressing …
Added Nov 3, 2026
+2 locations
Pay posted by employer $99,000–$225,000
Network Firewall Engineer The Opportunity: Are you looking for a career-defining opportunity to share your expertise in designing, …
Added Oct 27, 2026
… you a database expert who thrives in a fast-paced, multi-platform environment? As a Senior Infrastructure Engineer on our Digital & Technology team, you will lead the migration and modernization of enterprise Microsoft SQL …
Added Oct 27, 2026
+1 more
Pay posted by employer $96,700–$159,600
About this opportunity Original employer description Who Are We? Taking care of our customers, our communities and each other. That’s the Travelers Promise. By honoring this commitment, we have maintained our reputation as one of the best property casualty insurers in the industry for over 170 years. Join us to discover a culture that is rooted in innovation and thrives on collaboration. Imagine loving what you do and where you do it.
Technology
Compensation Overview The annual base salary range provided for this position is a nationwide market range and represents a broad range of salaries for this role across the country. The actual salary for this position will be determined by a number of factors, including the scope, complexity and location of the role; the skills, education, training, credentials and experience of the candidate; and other conditions of employment. As part of our comprehensive compensation and benefits program, employees are also eligible for performance-based cash incentive awards.
Salary Range $96,700.00 - $159,600.00
1
Travelers is seeking a Mainframe Network Engineer to join our organization as we grow and transform our Enterprise Technology Solutions organization, Our Infrastructure Engineers serve as a foundational cornerstone of the enterprise technology ecosystem, encompassing a diverse portfolio of critical systems that power all business operations. This discipline may include mainframe systems, compute resources, storage solutions, collaboration tools, and specialized platforms that enable system interoperability. As the bedrock layer of the technology stack, Infrastructure Engineering creates the resilient, secure, and scalable environments upon which all other technology services depend, balancing the maintenance of established systems with the adoption of modern cloud-native approaches to drive organizational agility and innovation. Applicants must be authorized to work for ANY employer in the US. The company does not sponsor/support H-1B petitions, TN, or Forms I-983/STEM OPT, this this role.
What Will You Do? Responsible for performing analysis, design, and implementation of infrastructure components across various domains (which may include mainframe systems, collaboration tools, compute resources, storage solutions, or other specialized areas) with a high degree of accuracy. Technical Execution:
Define and implement technical requirements for infrastructure provisioning, configuration management, and operational support using appropriate automation methodologies. Enhance infrastructure deployment workflows to improve system reliability, resource utilization, and operational efficiency while resolving infrastructure issues of intermediate complexity. Configure and optimize physical, virtualized, and cloud-based infrastructure to ensure high availability, performance, and operational resilience across multiple technology domains. Implement and maintain infrastructure monitoring, capacity planning, and incident response procedures while ensuring adherence to security protocols and compliance requirements. Strategic Input:
Collaborate with software, platform, and operations teams to align infrastructure capabilities with application requirements and business needs. Provide technical guidance to Associate and Sr Associate Infrastructure Engineers while contributing to infrastructure standards and best practices. Evaluate new infrastructure technologies and methodologies to identify opportunities for operational improvements and technology modernization. Perform other duties as assigned. What Will Our Ideal Candidate Have? Technical Expertise & Education:
3 years of infrastructure engineering/systems administration experience preferred. If specializing in a certain domain of infrastructure engineering, proven expertise in that specific area with ability to work across related systems. Domain Expertise - Demonstrated track record of infrastructure expertise including the ability to understand system concepts necessary to do the job effectively, demonstrate willingness, cooperation, and concern for business issues, and possess in-depth knowledge of immediate infrastructure systems worked on. Core Mainframe & Operating System Skills IBM z/OS: Deep proficiency in the z/OS Communications Server environment.Protocols & Architecture: Hands-on experience with SNA (Systems Network Architecture), VTAM (Virtual Telecommunication Access Method), and APPN/Enterprise Extender for SNA-over-IP communication.Environment Navigation: Familiarity with standard mainframe interfaces like TSO/ISPF, JCL (Job Control Language), and IOF (Interactive Output Facility. Networking & Connectivity Skills TCP/IP Stack: Advanced configuration and management of the z/OS TCP/IP stack, routing protocols (OSPF, EIGRP), and Layer 2/Layer 3 integration.Trace & Packet Analysis: Ability to execute and analyze complex VTAM network traces and sniffer/TCP/IP packet captures to isolate bottlenecks.Infrastructure Integration: Working knowledge of modern enterprise hardware and software, including switches, firewalls, load balancers, and 3270 emulators.Security & Policy Management Pagent & AT-TLS: Customization of the z/OS Policy Agent and Application Transparent Transport Layer Security for network policy and encryption rules.Certificates & Encryption: Administration of digital certificates, keyrings, SSH, and SSL/TLS protocols.Secure File Transfers: Support for enterprise file-moving tools like SFTP, FTPS, and Connect:Direct.Automation, Scripting & Monitoring Scripting Languages: Competency in REXX, CLIST, Python, or Linux BASH for workflow automation and generating SMF (System Management Facilities) reports.Diagnostic Tools: Experience utilizing IBM NetView, IBM or equivalent performance and capacity-planning tools.Leadership & Influence:
Strong communication skills that enable clear, concise interactions with team members and stakeholders. Your ability to document infrastructure work in an accessible manner, ask clarifying questions on requirements, and actively listen ensures seamless collaboration. You welcome constructive feedback and use it to continuously improve your approach to infrastructure challenges. You demonstrate intermediate leadership capabilities with a proven track record of self-motivation and initiative. Your ability to identify and pursue personal growth opportunities in infrastructure technologies shows your commitment to professional development and positions you to take on increasing responsibilities within our team. Strategic & Business Acumen:
Intermediate delivery skills including the ability to deliver infrastructure work at a steady, predictable pace to achieve commitments, decompose infrastructure assignments into small batch deployments, and contribute to system architecture tradeoff and negotiation discussions. Proven problem-solving skills including infrastructure debugging abilities, allowing you to determine source of issues in unfamiliar systems or environments, ability to recognize and solve repetitive infrastructure problems proactively and permanently, recognize mistakes using them as learning opportunities, and break down large infrastructure problems into smaller, more manageable ones. What is a Must Have? Bachelor’s degree in computer science, related STEM field, or its equivalent in work experience plus 2 years of infrastructure engineering experience.
What Is in It for You? Health Insurance : Employees and their eligible family members – including spouses, domestic partners, and children – are eligible for coverage from the first day of employment.Retirement: Travelers matches your 401(k) contributions dollar-for-dollar up to your first 5% of eligible pay, subject to an annual maximum. If you have student loan debt, you can enroll in the Paying it Forward Savings Program. When you make a payment toward your student loan, Travelers will make an annual contribution into your 401(k) account. You are also eligible for a Pension Plan that is 100% funded by Travelers.Paid Time Off: Start your career at Travelers with a minimum of 20 days Paid Time Off annually, plus nine paid company Holidays.Wellness Program: The Travelers wellness program is comprised of tools, discounts and resources that empower you to achieve your wellness goals and caregiving needs. In addition, our mental health program provides access to free professional counseling services, health coaching and other resources to support your daily life needs.Volunteer Encouragement: We have a deep commitment to the communities we serve and encourage our employees to get involved. Travelers has a Matching Gift and Volunteer Rewards program that enables you to give back to the charity of your choice.
Employment Practices Travelers is an equal opportunity employer. We value the unique abilities and talents each individual brings to our organization and recognize that we benefit in numerous ways from our differences.
In accordance with local law, candidates seeking employment in Colorado are not required to disclose dates of attendance at or graduation from educational institutions.
If you are a candidate and have specific questions regarding the physical requirements of this role, please send us an email so we may assist you.
Travelers reserves the right to fill this position at a level above or below the level included in this posting.
To learn more about our comprehensive benefit programs please visit http://careers.travelers.com/life-at-travelers/benefits/ .
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ETS Engineering Full time Hybrid Regular
