Linux System Administrator Alexandria, VA Secret clearance or higher The Test and Training Enabling Architecture (TENA) program at Leidos is looking to add a Linux System Administrator . Our mission is to develop tools for the United States Department of Defense test and training communities, to increase the speed of the development cycle, to get capabilities to the warfighter more rapidly. The Linux System Administrator will work within a team engineers, developers and system administrators, adding new capabilities to our enclaves, as well as ensuring the existing systems are secure and performing as intended. This position is required to work on-site in our Alexandria, VA office. Primary Responsibilities: Provide support for installing and maintaining Linux servers. Provide technical leadership for migrating on premise infrastructure to hybrid cloud solution. Provide support for troubleshooting from OS to application-level issues. Manage networking equipment including switches, routers and firewalls. Manage configuration and maintenance of core enclave infrastructure services including DCHP, DNS, e-mail, Apache Web Servers, Tomcat application servers, Atlassian applications, MariaDB database servers. Configure and monitor security tools required for DoD networks. Participate and contribute to design discussions related to improving the capabilities, performance and security posture of new and existing services. Basic Qualifications: US Citizen with at least an active Secret clearance. Bachelor’s degree with 4+ years of experience or a Master’s degree with 2+ years of experience. Additional experience may be considered in lieu of a degree. 4+ years of experience providing System Administration to DoD IT systems. DoD 8570 IAT level I
Jobs in United States
Technical Applications Specialist in United States
4,074 active opportunities · Updated October 2026
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Explore current technical applications specialist jobs across United States. Filter by work mode, employment type, experience, department, date posted and distance.
We are seeking a highly motivated and experienced Lead Java Developer to join our Credit Risk Technology team. This is a hands-on leadership role where you will be instrumental in designing, developing, and deploying robust, high-performance, and large-scale software solutions for Counterparty Credit Risk Management. You will be at the forefront of firm-wide initiatives, leveraging best-in-class software stacks and cutting-edge AI tools to solve complex challenges. You will lead a team of talented engineers, providing technical guidance, fostering innovation, and ensuring the delivery of high-quality, scalable, and resilient software. The ideal candidate is passionate about modern software development practices, proficient with contemporary tech stacks, and eager to utilize artificial intelligence to manage Citi’s exposure to financial institutions, governments, and corporates. This role offers the opportunity to make a significant impact by contributing to critical systems that provide an integrated view of trades, collateral, and market data from numerous sources. Key Responsibilities: Technical Leadership & Hands-On Development: Lead by example, actively contributing to the design, architecture, and hands-on development of critical software components for Counterparty Credit Risk Management leveraging AI tools such as Devin and Co-Pilot Drive technical excellence, ensuring best practices in coding, testing, and deployment are followed for high-performance and large-scale applications. Conduct code reviews, provide constructive feedback, and mentor team members in advanced development techniques. Team Leadership & Management: Supervise work of a team of software engineers Foster a collaborative, innovative, and inclusive team environment focused on tackling challenging firm-wide initiatives. Allocate resources effectively to meet project deadlines an
About the Team The Intelligence & Investigations Engineering team builds systems that detect, analyze, and disrupt abuse across OpenAI’s products. We partner closely with the Child Safety team and cross-functional groups to protect users while advancing OpenAI’s goal of developing AI that benefits everyone. About the Role As a Fullstack Engineer focused on child safety, you’ll build data-intensive, AI-powered applications and infrastructure that enable operators and investigators to work effectively and responsibly. You’ll adapt quickly in ambiguous, fast-moving environments to deliver well-crafted, reliable tooling for high-severity safety work. *Candidates should understand this role involves exposure to sensitive and egregious content. In this role, you will: 4+ years of experience as a software engineer Prototype, build, and maintain intelligence systems that detect, triage, and enable efficient human review of possible high severity harm Work hand in hand with operators and investigators, designing and delivering systems that enable them to do their work faster, more accurately, and more safely. Develop across the stack: UIs, services, pipelines, and anything else required to solve the problems we face. Interact with partners across Product Policy, Platform Integrity, Safety Systems, and Research Contribute to the team’s technical strategy, especially for child safety related tools and systems Report on impact in a data-driven fashion You might thrive in this role if you: Have a strong software engineering foundation and enjoy owning systems end-to-end—from infrastructure and data ingestion to frontend tooling Are energized by working at the frontier of AI capabilities, integrating new models and APIs into practical systems Have experience building and operating large-scale data pipelines or search/retrieval systems Are proficient in Python and/or TypeScript, and familiar with tools like Spark, Kafka, Flink, data warehouses, and SQL Take a product-minded ap
We’re looking for a strategic operator to help advance OpenAI’s life sciences capabilities and translate them into meaningful scientific and commercial impact. Working closely with research teams and external partners, you’ll identify opportunities to improve AI models, products, and supporting infrastructure, and lead partnerships and strategic initiatives that bring these capabilities into real scientific workflows. This role combines partnership development, strategic judgment, and hands-on execution. You’ll help determine where OpenAI can make the greatest contribution, identify the expertise and resources needed, and bring together the right partners to move from an idea to demonstrated impact. In this role, you will: Shape capability priorities. Work with research and cross-functional teams to identify and prioritize new life sciences capabilities, balancing scientific value, technical feasibility, and commercial potential. Build and execute partnerships. Develop data, research, and commercial partnerships with biotechnology companies, pharmaceutical organizations, and other participants in the life sciences ecosystem. Translate capabilities into real-world applications. Partner with external organizations to apply OpenAI’s technology in scientific workflows, evaluate its usefulness, and use those learnings to inform further development. Structure effective collaborations. Work with legal, finance, research, and other teams to define partnership scope, align incentives, and navigate data access, intellectual property, commercial terms, and governance. Lead strategic initiatives. Identify and own projects that advance scientific capabilities and create long-term value for OpenAI, including licensing, joint development, and new applications of AI. Drive operational execution. Establish clear objectives, milestones, and ownership; coordinate resources; and resolve obstacles across internal teams and external partners. Expand access to expertise. Identify gaps in
We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary We are seeking a highly skilled Automation Developer & Revenue Cycle Systems Analyst to support operational efficiency initiatives within our Revenue Cycle organization. This role will be responsible for developing, maintaining, and enhancing automated solutions that improve workflows, reduce manual effort, and support front-line operations. The ideal candidate will have strong technical expertise in automation technologies, programming, and healthcare revenue cycle processes. Key Responsibilities Design, develop, test, and maintain automation solutions using Visual Basic (VB) scripting and related technologies. Create, modify, and support complex Microsoft Excel macros and VBA-based automation tools. Develop and maintain automations within Boston Workstation to improve operational performance and productivity. Review claim data and quality assure claim examples in Athena Health Utilize Python and coding to implement automation via web-based platforms & applications. Selenium experience preferred to automate web-based processes and interactions with websites and application interfaces. Experience with application programming interface (API). Troubleshoot automation issues, identify root causes, and implement sustainable solutions. Partner with re
Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. Job Description Central Engineering at Micron Technology, Inc. is a dynamic and integral part of the company, focused on providing essential services and driving innovation across various technical domains. Established nearly five years ago, Central Engineering initially concentrated on creating economies of scale and enhancing efficiency for the Technology Products Group (TPG). Over the past three years, the team has evolved to deliver industry-first products, develop core design process automation, and produce powerful AI and Data Science tools. As a CAD in CE Memory CAD Engineer at Micron, we work in a fast-paced and collaborative environment. We provide production support role by evaluating, developing, enhancing and debugging both in-house and commercial EDA tools and flows for the design, physical layout, and verification of CMOS integrated circuits! The right person will have be developing and applying CAD software engineering methods, theories and research techniques in support of the organization's product development! Assignments include crafting and developing CAD software, assessing architecture and hardware limitations, and defining and implementing CAD software engineering applications. Responsibilities: Innovating to develop tools, flows, and methodologies to increase the design efficiency and quality of our memory designs on NAND/DRAM/HBM Providing training, documentation, and support to end-users o
We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. POSITION SUMMARY CVS Health Digital is looking for hands-on, passionate people who want to join a high energy and growing team to make a difference in customers lives and who want to be on the forefront of digital innovation that aims to reinvent what a pharmacy and a health care company can be in the digital world. Currently, we are seeking a Staff Software Development Engineer, who will serve as a senior technical leader on a cross-functional product team responsible for designing, developing, and delivering scalable healthcare technology solutions. You will play a critical role in driving architecture decisions, mentoring engineers, and partnering with product, UX, and business stakeholders to build secure, cloud-native applications that enhance the digital healthcare experience. In this role, you will lead the development of distributed systems and microservices leveraging Java, Spring Boot, event-driven architectures, and modern cloud technologies. This Staff Engineer will also guide data migration and interoperability initiatives, supporting healthcare integrations that enable seamless and secure exchange of clinical data across platforms. The ideal candidate combines strong software engineering expertise with a passion for innovation, technical leadership, and delivering high-quality solutions in an Agile environment. Expectations for the Role Software
Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange™️ platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 160+ public exchanges globally and thousands of private exchanges at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. We are looking for a Senior Sales Engineer to join our Majors Central team. This is a remote role, reporting to the Manager of Sales Engineering. The Zscaler Sales and Go-to-Market team is a global group of professionals who are passionate about delighting our customers, nurturing trusted partnerships, and sharing their expertise to drive a secure, cloud-enabled digital future and further cement our position as the world leader in cloud security. Sales, Customer Success, Sales Enablement, Solution Architects, Business Development, Transformation, and Technology Partnerships all work together to demonstrate the power and agility of Zscaler cloud transformation to the world. What you’ll do (Role Expectations) Create and deliver technical product presentations to prospective customers Gather customer technical requirements to ensure proposed solutions will meet customer goals and needs Lead product evaluations and cus
Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company’s primary focus is to develop distributed power generators that can operate on various fuel sources to future-proof against an ever-changing energy economy. Job Purpose The Manager, Electrical Engineering is responsible for the electrical systems of the KARNO generator, including high-voltage power electronics, battery systems, low- and high-voltage architecture, wiring harnesses, and the hardware that converts linear motion into electrical output. This is a working manager role: the position leads and develops a team of electrical engineers while remaining directly involved in technical execution, including circuit architecture, schematic review, and hardware bring-up in the lab. The Manager is accountable for the technical excellence, safety, and reliability of the electrical engineering function, and for establishing the design standards and review practices the team works to. The position plans team capacity, owns hiring and development for the electrical engineering staff, and partners with mechanical, controls, supply chain, and program management on system integration. KARNO systems are deployed in data center, military, and industrial applications. AI at Hyliion At Hyliion, AI is core to how we work. We equip every team member with leading AI tools and count on you to use them — to move faster, solve harder problems, and help us realize the full potential of KARNO technology for the world. Duties and Responsibilities Own critical electrical designs personally, including regular time at the bench and in the test cell, while leading the team as a practicing engineer. Lead the electrical engineering team in the design and development of KARNO generator electrical systems, including high-voltage power electronics, battery systems, linear generator power stages, and low-voltage controls hardwar
From $154.9K/yr
Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange™️ platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 160+ public exchanges globally and thousands of private exchanges at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Senior Sales Engineer to join our South Majors team. This role is based in Texas, reporting to the Senior Sales Engineering Manager for the Americas Field Sales team. You will be responsible for architecting technical solutions that directly address and resolve critical customer pain points. You will serve as a technical advisor throughout the sales cycle, ensuring that Zscaler solutions are perfectly aligned with customer goals and technical requirements. You will be responsible for architecting technical solutions that directly address and resolve critical customer pain points. Creating and delivering technical product presentations to prospective customers where you will promote the value proposition of Zscaler products Gathering customer technical requirements to ensure proposed solutions will meet customer goals and needs Leading product evaluations and custom product configurations Running
From $152K/yr
Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange™️ platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 160+ public exchanges globally and thousands of private exchanges at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Sr. Production Engineer to join our team. This role is available as a hybrid opportunity 3 days a week in San Jose, CA or Remote reporting to Production Engineering in the Cloud Infrastructure & Operations department. Join Zscaler to be a force multiplier for the reliability of a global platform processing 200+ billion transactions daily across tens of millions of enterprise users. In this role, you will provide the technical vision and hands-on execution to drive an "automation-first" culture across the company. By maturing our observability and architectural standards, you will directly reduce our Mean Time to Mitigate (MTTM) and shape the scalability of our globally distributed, multi-cloud infrastructure. What you’ll do (Role Expectations) Implement highly available, scalable infrastructure across AWS, GCP, and bare-metal environments Drive an "automation-first" culture by wr
From $174K/yr
Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange™️ platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 160+ public exchanges globally and thousands of private exchanges at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. We are looking for a Senior Sales Engineer to join our Majors Central team. This is a remote role, reporting to the Manager of Sales Engineering. The Zscaler Sales and Go-to-Market team is a global group of professionals who are passionate about delighting our customers, nurturing trusted partnerships, and sharing their expertise to drive a secure, cloud-enabled digital future and further cement our position as the world leader in cloud security. Sales, Customer Success, Sales Enablement, Solution Architects, Business Development, Transformation, and Technology Partnerships all work together to demonstrate the power and agility of Zscaler cloud transformation to the world. What you’ll do (Role Expectations) Create and deliver technical product presentations to prospective customers Gather customer technical requirements to ensure proposed solutions will meet customer goals and needs Lead product evaluations and cus
From $154.9K/yr
Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange™️ platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 160+ public exchanges globally and thousands of private exchanges at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Senior Sales Engineer to join our South Majors team. This role is based in Texas, reporting to the Senior Sales Engineering Manager for the Americas Field Sales team. You will be responsible for architecting technical solutions that directly address and resolve critical customer pain points. You will serve as a technical advisor throughout the sales cycle, ensuring that Zscaler solutions are perfectly aligned with customer goals and technical requirements. You will be responsible for architecting technical solutions that directly address and resolve critical customer pain points. Creating and delivering technical product presentations to prospective customers where you will promote the value proposition of Zscaler products Gathering customer technical requirements to ensure proposed solutions will meet customer goals and needs Leading product evaluations and custom product configurations Running
From $154.9K/yr
Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange™️ platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 160+ public exchanges globally and thousands of private exchanges at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Senior Sales Engineer to join our South Majors team. This role is based in Georgia, reporting to the Senior Sales Engineering Manager for the Americas Field Sales team. You will be responsible for architecting technical solutions that directly address and resolve critical customer pain points. You will serve as a technical advisor throughout the sales cycle, ensuring that Zscaler solutions are perfectly aligned with customer goals and technical requirements. You will be responsible for architecting technical solutions that directly address and resolve critical customer pain points. Creating and delivering technical product presentations to prospective customers where you will promote the value proposition of Zscaler products Gathering customer technical requirements to ensure proposed solutions will meet customer goals and needs Leading product evaluations and custom product configurations Runni
From $154.9K/yr
Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange™️ platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 160+ public exchanges globally and thousands of private exchanges at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Senior Sales Engineer to join our team. This is a Texas based role, reporting to the Sales Engineering Manager for the Americas Field Sales team in the South Enterprise department. You will be responsible for architecting technical solutions that directly address and resolve critical customer pain points. You will serve as a technical advisor throughout the sales cycle, ensuring that Zscaler solutions are perfectly aligned with customer goals and technical requirements. What you’ll do (Role Expectations) Creating and delivering technical product presentations to prospective customers where you will promote the value proposition of Zscaler products Gathering customer technical requirements to ensure proposed solutions will meet customer goals and needs Leading product evaluations and custom product configurations Running Proof of Value from start to finish, as the technical and industry expert Co
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