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Sr Software Engineer United States Jobs (On-site work)

93 Job Offers

Software Engineer with Poly SR SWE1
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Senior Software Engineer sought by Lockheed Martin to lead full-stack development of advanced data analytics solutions for high-visibility missions in Washington, DC. Requires an active Top Secret clearance with polygraph, 7+ years of SWE experience, and expertise in JavaScript, React, and Mongo....
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United States , Washington
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TieTalent
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Software Engineer with Poly SR SWE1
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Senior Software Engineer with Polygraph needed for high-visibility analytic missions in Baltimore. Leverage 7+ years of full-stack experience (JavaScript, React, Mongo) to lead agile development and advanced data analytics solutions. Active TS/SCI clearance with polygraph required. Enjoy medical/...
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United States , Baltimore
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TieTalent
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Software Engineer with Poly SR SWE1
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Senior Software Engineer sought by Lockheed Martin in Bethesda, MD to lead advanced data analytics and agile development for a high-visibility mission. Requires an active Top Secret/SCI with polygraph, 7+ years of SWE experience, and full-stack skills in JavaScript, React, and Mongo. This role of...
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United States , Bethesda
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TieTalent
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Software Engineer with Poly SR SWE1
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Senior Software Engineer with Polygraph needed in Baltimore to lead full-stack development of advanced data analytics solutions for a high-visibility mission. Requires 7+ years SWE experience, active Top Secret/SCI with poly, and expertise in JavaScript, React, and Mongo. Join Lockheed Martin to ...
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United States , Baltimore
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TieTalent
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Sr Software Engineer - Matching ML Platform
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Join Uber’s Matching ML Platform team as a Sr Software Engineer in Seattle or San Francisco. You will build and scale low-latency distributed systems powering millions of real-time match decisions per second. Requires 5+ years of full-cycle software engineering experience with ML in production an...
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United States , Seattle, Washington; San Francisco, California
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202000.00 - 224000.00 USD / Year
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Uber
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Sr. Software Engineer
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Sr. Software Engineer needed in Annapolis Junction to design, develop, and secure custom solutions for critical missions. Requires an active TS/SCI with Polygraph, a CS degree, and 8+ years of experience in CNO, reverse engineering, and large-scale software projects (Python, Rust, C++). Must have...
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United States , Annapolis Junction
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150000.00 - 220000.00 USD / Year
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Applied Network Solutions
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Sr. Software Engineer
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Senior Software Engineer needed for a fully onsite contract-to-hire role in Margate, Florida. You will support business-critical applications, drive .NET development, and modernize legacy systems using C#, ASP.NET, .NET Core, and React.js. Ideal for a hands-on engineer experienced with applicatio...
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United States , Margate
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Robert Half
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Sr. Software Engineer- Back End
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Senior Backend Engineer needed to design and scale cloud-native, distributed systems for warehouse management and logistics. Leverage Java, Spring Boot, and Python to build high-performance microservices and APIs in Plano, TX. Collaborate with cross-functional teams to modernize supply chain plat...
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United States , Plano
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80200.00 - 134250.00 USD / Year
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Pepsico
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Sr. Staff Engineer Software (Strata Cloud Control Plane)
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Sr. Staff Engineer Software role in Santa Clara, CA, building the cloud control plane for Palo Alto Networks’ Strata platform. You will lead end-to-end delivery of scalable microservices, requiring 5+ years in enterprise software, expert GoLang skills, and TDD/CI experience. This position offers ...
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United States , Santa Clara
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126000.00 - 204500.00 USD / Year
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Palo Alto Networks
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Software Engineer with Poly SR SWE1
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Senior Software Engineer with Polygraph needed in Frederick, MD to lead full-stack development of advanced data analytics solutions for Lockheed Martin. Requires Active Top Secret clearance, 7+ years SWE experience, and expertise in JavaScript, React, and Mongo. Drive high-visibility mission obje...
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United States , Frederick
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TieTalent
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Software Engineer with Poly SR SWE1
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Senior Full Stack Software Engineer sought by Lockheed Martin in Newington to lead advanced data analytics and agile development for high-visibility missions. Requires Active Top Secret clearance with polygraph, 7+ years SWE experience, and expertise in JavaScript, React, and Mongo. Drive mission...
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United States , Newington
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TieTalent
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Sr Software Engineer, Agentic AI
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Seeking a Sr Software Engineer, Agentic AI in Atlanta or Bellevue to design and deploy scalable AI solutions. You will build cloud-native microservices, APIs, and orchestration layers integrating LLMs and conversational AI for intelligent customer engagement. Requires 5+ years experience with Pyt...
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United States , Atlanta; Bellevue
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113600.00 - 205000.00 USD / Year
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T-Mobile
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Sr. Software Engineer
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Senior Software Engineer sought for a contract-to-permanent role in Mayville, Wisconsin. You will build modern web solutions with React, Next.js, or Angular and enhance critical enterprise applications. Key requirements include 3+ years of experience, API integration, and cloud familiarity (Azure...
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United States , Mayville
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Robert Half
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Sr. Software Engineer
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Sr. Software Engineer role in Coppell, TX, offering contract-to-permanent hire. Lead technical delivery using C#, .NET, ASP.NET, React.js, and JavaScript. Drive solution design, code reviews, and production support while mentoring engineers. Enjoy medical, vision, dental, life insurance, and 401(k).
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United States , Coppell
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Robert Half
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Sr. Software Engineer
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Seeking a Sr. Software Engineer for a fully onsite contract-to-hire role in Margate, FL. Join a municipal IT team to support business-critical applications using .NET, C#, ASP.NET, and React.js. Ideal for a hands-on engineer skilled in application support, integration, and legacy modernization. B...
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United States , Margate
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Robert Half
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Sr. Software Engineer
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Senior Software Engineer sought for a growing Knoxville team. Build scalable backend services with Python/Node.js, develop APIs (REST/GraphQL), and create React front-ends. Requires 6+ years of experience, AWS expertise, and database skills (PostgreSQL, MongoDB). Enjoy full benefits including med...
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United States , Knoxville
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Robert Half
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Sr. Software Engineer
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Senior Software Engineer opportunity in Dallas, TX on a contract-to-permanent basis. Lead technical delivery and solution design using C#, .NET, ASP.NET, React.js, and JavaScript. Drive scalable, user-focused applications while mentoring engineers and resolving complex production challenges. Bene...
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United States , Dallas
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Robert Half
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Sr. Software Engineer
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Seeking a Sr. Software Engineer for a long-term contract in Fort Wayne, IN. Lead full-stack development using C#, .NET, ASP.NET, and React.js while driving architecture and production support. Requires 5+ years of enterprise experience and a passion for mentoring. Enjoy medical, dental, vision, 4...
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United States , Fort Wayne
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Robert Half
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Sr. Software Engineer
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Senior Software Engineer needed for a municipal tech team in Margate, FL. This onsite contract-to-hire role requires hands-on expertise in .NET, C#, ASP.NET, React.js, and legacy system support. You will maintain business-critical applications, build integrations, and drive modernization. Join a ...
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United States , Margate
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Not provided
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Robert Half
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Sr Software Engineer- iOS, Applied AI
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United States , San Francisco; Sunnyvale
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202000.00 - 224000.00 USD / Year
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Uber
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About the Sr Software Engineer role

Explore the world of Sr Software Engineer jobs, where technical mastery meets strategic leadership. A Senior Software Engineer is a pivotal, experienced professional responsible for architecting, building, and maintaining complex, scalable software systems. This role transcends basic coding, focusing on high-level design, system reliability, and mentoring teams to drive technological excellence and business impact.

Professionals in these jobs typically shoulder a comprehensive set of responsibilities. They are entrusted with the end-to-end software development lifecycle, from gathering requirements and designing system architecture to writing robust code, implementing rigorous testing, and overseeing deployment and operations. A core duty is making critical architectural decisions, often involving microservices, distributed systems, and cloud-native technologies to ensure scalability and resilience. They write clean, efficient, and maintainable code while enforcing best practices through code reviews. Furthermore, Sr Software Engineers are key collaborators, working closely with product managers, designers, and other engineering teams to translate business needs into technical solutions. A significant part of their role involves mentoring junior and mid-level developers, fostering a culture of continuous learning and engineering excellence. They also champion modern development methodologies, including Agile, DevOps, and CI/CD pipelines, to enable rapid and reliable delivery.

The typical skill set for these senior roles is both deep and broad. A strong foundation in computer science fundamentals—data structures, algorithms, and design patterns—is non-negotiable. Proficiency in one or more programming languages (such as Java, C#, Python, JavaScript, or Go) and their associated frameworks is expected. Expertise in system design, API development, and database management (both SQL and NoSQL) is crucial. Experience with cloud platforms (AWS, Azure, GCP), containerization (Docker, Kubernetes), and infrastructure-as-code is highly common. Beyond technical acumen, senior engineers must possess excellent problem-solving abilities to debug complex issues and optimize system performance. Soft skills are equally vital; clear communication, effective collaboration, and project leadership are essential for guiding teams and influencing technical strategy.

Common requirements for Sr Software Engineer jobs usually include a bachelor’s degree in computer science or a related field (or equivalent practical experience), coupled with a proven track record, typically 5+ years of hands-on software development experience, demonstrating progression in responsibility. Employers seek candidates with a history of shipping and operating large-scale, high-quality software products. The ability to work in cross-functional teams, a commitment to security and quality best practices like TDD/BDD, and a proactive, solution-oriented mindset define successful candidates in this demanding and rewarding profession.