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Software Engineer United States Jobs

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Staff Software Engineer
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Staff Software Engineer needed to architect scalable, enterprise-grade solutions using Java, Spring Boot, React, and agentic technologies (LLMs, MCPs) for Walmart's OneSource platform. Drive global sourcing transformation with deep data integration and intelligent automation. Requires 10+ years i...
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United States , Sunnyvale
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143000.00 - 286000.00 USD / Year
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Walmart
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Senior Software Engineer Staff - Clearance Required
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Senior Software Engineer Staff sought by Lockheed Martin in Annapolis to lead cybersecurity software development. Requires 14+ years SWE experience, a Bachelor's in CS, and an active security clearance with polygraph. Design, code, and integrate complex systems while analyzing user requirements. ...
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United States , Annapolis
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Senior Software Engineer Staff - Clearance Required
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Senior Software Engineer Staff sought by Lockheed Martin in Baltimore to lead cybersecurity software development for critical national infrastructure. Requires 14+ years SWE experience, a Bachelor’s in CS (or equivalent), and an active security clearance with polygraph. You will design complex al...
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United States , Baltimore
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Senior Software Engineer Staff
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Senior Software Engineer Staff sought by Lockheed Martin in Baltimore to lead cybersecurity software development. You will analyze user requirements, design complex algorithms, and integrate systems for mission-critical defense networks. Requires 14+ years of SWE experience, a Bachelor’s in CS, a...
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United States , Baltimore
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Senior Software Engineer Staff - Clearance Required
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Senior Software Engineer Staff sought by Lockheed Martin in Baltimore to lead cybersecurity software development. Requires 14+ years SWE experience, a Bachelor's in CS, and an active security clearance with polygraph. You will design, code, and integrate complex systems while mentoring teams. Enj...
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United States , Baltimore
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Senior Software Engineer Staff - Clearance Required
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Senior Software Engineer Staff sought by Lockheed Martin in Gaithersburg to lead cybersecurity software development. Requires 14+ years SWE experience, a Bachelor's in CS, and an active security clearance with polygraph. Design, code, and integrate complex systems while analyzing user requirement...
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United States , Gaithersburg
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Senior Software Engineer Staff
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Senior Software Engineer Staff needed in Washington, DC to safeguard national security systems with cutting-edge cyber defense technologies. Requires 14+ years SWE experience, a Bachelor's in CS, and an active security clearance with polygraph. You will lead software design, develop complex algor...
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United States , Washington
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Senior Software Engineer Staff - Clearance Required
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Senior Software Engineer Staff sought by Lockheed Martin to lead cybersecurity software development in Washington, DC. Requires 14+ years SWE experience, a Bachelor’s in CS, and an active security clearance with polygraph. You will design complex algorithms, integrate systems, and mentor teams on...
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United States , Washington
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Software Engineer With Poly SR Swe1
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Senior Software Engineer with Polygraph needed for high-visibility mission at Lockheed Martin in Centreville, VA. You'll lead full stack development (JavaScript, React, Mongo) and data analytics projects, collaborating with cross-functional teams. Requires Active TS/SCI with polygraph, 7+ years S...
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United States , Centreville
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Senior Software Engineer Staff - Clearance Required
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Senior Software Engineer Staff sought by Lockheed Martin in Annapolis, MD to lead cybersecurity software development. Requires 14+ years SWE experience, a Bachelor’s in CS, and an active security clearance with polygraph. You will design complex algorithms, integrate systems, and mentor teams. En...
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United States , Annapolis
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Software Engineer With Poly Sr Swe1
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Senior Software Engineer with Polygraph needed in Herndon, VA to lead full stack development (JavaScript, React, Mongo) for high-visibility analytic missions. Requires Active Top Secret clearance, 7+ years SWE experience, and a Bachelor’s in CS. Drive agile data analytics solutions while mentorin...
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United States , Herndon
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Senior Software Engineer Staff - Clearance Required
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Senior Software Engineer Staff sought by Lockheed Martin in Washington, DC to lead cybersecurity software development. Requires 14+ years SWE experience, a Bachelor's in CS, and an active security clearance with polygraph. You will design algorithms, integrate systems, and analyze user requiremen...
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United States , Washington
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Senior Software Engineer Staff - Clearance Required
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Senior Software Engineer Staff sought by Lockheed Martin in Washington, DC to lead cybersecurity software design and development. Requires 14+ years of SWE experience, a Bachelor’s in Computer Science, and an active security clearance with polygraph. You will analyze requirements, code new featur...
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United States , Washington
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Software Engineer with Active Secret Clearance
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Seeking a **Software Engineer** with an **Active Secret Clearance** for a critical **AWS GovCloud** migration in **Fort Worth, TX**. You will lead the migration of a software development network, requiring **C++**, **Python**, and **Linux** expertise. Must have **3+ years of AWS GovCloud** and **...
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United States , Fort Worth
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Software Engineer - FMS User Interface Engineer
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Seeking a skilled **Software Engineer** to lead **FMS User Interface** development in **Phoenix, AZ**. You will perform new feature development and critical software updates for safety-critical avionics systems. Requires 8+ years of embedded systems experience, 5+ years with **C/C++**, and famili...
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United States , Phoenix
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Real Time Consulting
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Software Engineer - Aircraft State
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Seeking a **Software Engineer** to join a team developing core **Aircraft State** and systems monitoring applications for a **Next Generation Avionics Platform** in **Phoenix, AZ**. Requires 5+ years of **aerospace industry** experience, expertise in **avionics integration** and **verification**,...
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United States , Phoenix
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Real Time Consulting
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Software Engineer - Avionics Network Server
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Seeking a **Software Engineer** to design secure, scalable **avionics** solutions on **embedded Linux** for Urban Air Mobility certification in **Phoenix, AZ**. You will develop **gateway/connectivity** products, ensuring compliance with **DO-178B/C** standards. Requires 5+ years in **C++**, **TC...
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United States , Phoenix
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Real Time Consulting
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Principal Software Engineer
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Microsoft Security seeks a Principal Software Engineer in Redmond, WA to lead AI-first, high-scale service architecture. You will drive infrastructure security, mentor teams, and innovate on cloud solutions using C#, Python, or Java. Requires 6+ years experience, a CS degree, and expertise in LLM...
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United States , Redmond
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139900.00 - 304200.00 USD / Year
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Microsoft Corporation
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Low Level Software Verification Engineer – Integrated Vehicle Health Monitoring
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Seeking experienced Low Level Software Verification Engineers for Integrated Vehicle Health Monitoring (IVHM) on a cutting-edge helicopter project in Grand Rapids, MI. Requires 5+ years embedded avionics development, DO-178B/C lifecycle expertise, and proficiency in C/C++ with automated verificat...
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United States , Grand Rapids
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Real Time Consulting
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Senior Software Engineer (Measurement and Bring-up)
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Join Microsoft Quantum in Redmond as a Senior Software Engineer to build the control and measurement stack for topological qubits. You will develop Python software for instrument coordination, implement robust test and calibration routines, and partner with scientists to turn experimental intent ...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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About the Software Engineer role

Explore the dynamic and in-demand world of software engineering jobs, where professionals design, build, and maintain the digital infrastructure that powers modern life. Software engineers, often synonymous with developers, are the creative problem-solvers and architects behind websites, mobile apps, operating systems, and complex enterprise systems. This career path blends analytical thinking with creative design to translate user needs and business goals into functional, efficient, and scalable software solutions.

The core responsibility of a software engineer is the full software development lifecycle. This typically begins with analyzing requirements and collaborating with product managers, designers, and other stakeholders. Engineers then design system architecture, write clean and maintainable code, and rigorously test their creations to ensure reliability and performance. A significant part of the role involves debugging issues, optimizing existing systems, and deploying updates. Many engineers also participate in code reviews to maintain quality standards and contribute to technical documentation. In today's agile environments, they often work in iterative cycles, continuously integrating and delivering new features.

Software engineering jobs can be specialized, but common areas include front-end (client-side), back-end (server-side), and full-stack development. Front-end engineers focus on user interfaces and experiences using technologies like HTML, CSS, and JavaScript frameworks. Back-end engineers build the server logic, databases, and application programming interfaces (APIs) that power functionality behind the scenes. Full-stack engineers possess skills across both domains. Other specializations include DevOps, security, data engineering, and cloud-native development.

Typical skills and requirements for these roles are both technical and soft-skills based. Fundamentally, proficiency in one or more programming languages such as Python, Java, JavaScript, C#, or Go is essential. Understanding data structures, algorithms, and system design principles is crucial. Experience with frameworks, databases (SQL and NoSQL), and version control systems like Git is commonly expected. As software is increasingly built for the cloud, familiarity with services from providers like AWS, Azure, or GCP is a valuable asset. Equally important are strong problem-solving abilities, attention to detail, and effective communication skills for teamwork. While many positions require a degree in computer science or a related field, a proven portfolio and relevant experience are also highly valued pathways into software engineering jobs.

The profession offers immense variety, with opportunities to build everything from life-saving health applications and financial platforms to immersive games and cutting-edge AI tools. It is a career characterized by continuous learning, collaboration, and the tangible impact of creating products used by millions. For those with a logical mind and a passion for building, software engineering jobs present a rewarding and future-proof career path with endless possibilities for innovation and growth.