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Senior Software Engineer United States Jobs

1684 Job Offers

Senior Software Engineer
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Senior Software Engineer – Firefox Monitor. Build cloud-native Node.js/TypeScript systems at the intersection of security and privacy. Lead backend development, own GCP/AWS infrastructure, and optimize PostgreSQL at scale. Join Mozilla to protect millions from data breaches with top benefits and ...
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United States; Canada
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Not provided
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Mozilla
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Senior Digital Twin Software Engineer
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Senior Digital Twin Software Engineer sought to design and build core services, SDKs, and high-performance 3D runtime components for immersive digital twins. Requires 5+ years full-stack experience with Java, C#, C++, Python, or TypeScript/React, plus API design and systems integration skills. Ba...
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United States , Austin; Mountain View; Warren
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General Motors
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UI UX Senior Software Engineer
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Senior UI/UX Software Engineer needed to lead full-stack development for U.S. Army and USMC defense systems at Aberdeen Proving Ground. Requires expertise in Java, JavaScript, React, Angular, and Agile methodologies. Must have experience with DoD mission-critical platforms, CI/CD pipelines, and c...
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United States , Aberdeen Proving Ground
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Not provided
VES
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Senior Software Engineer
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Senior Software Engineer sought for full-stack development in Warrenton, VA or Augusta, GA. Must have strong Java, JavaScript/TypeScript, and an active TS/SCI with polygraph. Collaborate on mission-critical systems using Python, Angular, React, and ElasticSearch. Join a supportive team offering d...
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United States , Warrenton, VA; Augusta, GA
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Altamira Technologies
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Senior Software Engineer
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Senior Software Engineer with Top Secret Clearance needed in Warrenton, VA. You’ll deliver full-stack solutions using Java, JavaScript, and TypeScript, while adapting to Python, Angular, or React. Join a collaborative team that values independent problem-solving and continuous integration. Must h...
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United States , Warrenton
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Altamira Technologies
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Senior Software Engineer - System Optimization
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Join Microsoft’s AI Frameworks team in Mountain View as a Senior Software Engineer specializing in System Optimization. You’ll optimize inference performance for OpenAI and LLM models, using C++, Python, and co-designing HW/SW interfaces at cloud scale. Requires a BS in CS, 4+ years of coding exp...
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United States , Mountain View
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Software Engineer
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Join Microsoft’s Azure Data engineering team as a Senior Software Engineer. Build and enhance Visual Studio Code extensions and AI-assisted developer tools for Azure SQL and SQL Server. Requires 4+ years of coding in C#, TypeScript, or Python, plus a Bachelor's in CS. Drive innovation in data pla...
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United States , Multiple Locations
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Principal Software Engineer — Layer 7 Security
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Senior Principal Software Engineer — Layer 7 Security role in Santa Clara, CA. Lead architecture and development of next-gen, high-performance distributed security systems. Requires 12+ years of experience, expert-level C and Go, deep networking and TCP/IP expertise. Drive innovation in mission-c...
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United States , Santa Clara
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147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Senior Lead Software Engineer (Full Stack)
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Senior Lead Full Stack Software Engineer sought by Capital One to drive cloud-native transformation in Houston, McLean, or Riverwoods. Lead diverse tech projects, mentor engineers, and build robust solutions using JavaScript, Java, Python, or Go. Requires 6+ years’ software engineering experience...
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United States , Houston; McLean; Riverwoods
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209000.00 - 262400.00 USD / Year
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Capital One
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Senior Software Engineer - Full Stack
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Join Microsoft Clarity as a Senior Full Stack Engineer to build a high-performance user behavior analytics platform used by millions. You’ll own data accuracy and efficiency, develop AI-forward features, and design scalable distributed services on Azure. Based in Redmond, this role requires 4+ ye...
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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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Senior Software Engineer, MediaWiki
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Join the Wikimedia Foundation as a Senior Software Engineer on the MediaWiki Platform team. You will enhance the core open-source platform powering Wikipedia, focusing on performance, scalability, and reliability. We seek backend engineering expertise, strong system design skills, and experience ...
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United States
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113082.00 - 175725.00 USD / Year
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Wikimedia Foundation
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Senior Software Engineer
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Senior Software Engineer needed in Annapolis Junction to design and optimize scalable data pipelines using Apache Spark, Airflow, and Python/Java. You will architect high-performance data ingress/egress systems for analytics workloads. Requires expertise in distributed processing, Linux CLI, Bash...
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United States , Annapolis Junction
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2HB
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Senior Software Engineer
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Senior Software Engineer needed in Annapolis Junction to design, sustain, and troubleshoot complex operational data flows. You will manage data storage, transport, security, and compliance while performing exploratory analysis to clean and transform raw data. Requires a Master’s degree plus 5 yea...
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United States , Annapolis Junction
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2HB
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Senior CAM Software Engineer
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Senior CAM Software Engineer sought in White River Junction, VT to lead development of advanced manufacturing software for complex turbomachinery. Requires 5+ years of C++ and Python experience, plus expertise in geometric modeling and CNC machining. Drive multi-axis toolpath programming, mentor ...
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United States , White River Junction, VT
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100000.00 - 130000.00 USD / Year
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Concepts NREC
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Senior Software Engineer
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Join Microsoft as a Senior Software Engineer in Redmond, WA, to shape the future of OneDrive and SharePoint. Design scalable systems for cloud migration, enhance core performance, and ensure zero customer impact. Requires a BS in CS or equivalent with 4+ years in C++, C#, Java, or Python. Drive b...
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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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Senior Software Engineer
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Join Microsoft Security as a Senior Software Engineer in Redmond, WA. Design and ship core security capabilities with C, C++, C#, Java, JavaScript, or Python. Drive least-privilege and data-protection solutions in high-throughput, multi-tenant environments. Requires a Bachelor’s in CS + 4 years’ ...
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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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Senior Research Software Engineer
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Join Microsoft Research as a Senior Research Software Engineer on the Agentic Experiences team in Redmond. Drive AI-native development using Python, Rust, or C# to build scalable, innovative solutions. Collaborate across labs to transform prototypes into reliable products. Ideal for experienced e...
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United States , Redmond
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Salary
119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Software Engineer, Offsite Ads
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Senior Software Engineer, Offsite Ads at Uber – build the infrastructure powering ads across the open web. This full-stack role demands 5+ years experience with React, TypeScript, Node.js, and Go/Java for high-concurrency microservices. You’ll own SDK development, optimize browser rendering, and ...
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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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Senior Software Engineer
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Join Microsoft Advertising as a Senior Software Engineer to reinvent AI-era measurement systems. You’ll build near real-time conversion pipelines, optimizing attribution signals for global campaign performance. Requires a CS degree and 4+ years in C#, Java, or Python. Based in Redmond, WA, this r...
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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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Senior Principal Software Engineer — Layer 7 Security
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Senior Principal Software Engineer sought to lead Layer 7 security innovation in Santa Clara. This strategic role demands expert-level C/Go skills, deep Unix/Linux experience, and a proven track record designing large-scale distributed systems. You will define architecture for next-gen firewall p...
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United States , Santa Clara
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Salary
170000.00 - 277000.00 USD / Year
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Palo Alto Networks
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About the Senior Software Engineer role

Senior Software Engineer jobs represent a pivotal career stage where technical expertise converges with leadership and strategic influence. These professionals are the cornerstone of software development teams, responsible for designing, building, and maintaining complex, scalable systems that power modern businesses. Moving beyond foundational coding tasks, senior engineers architect solutions, make critical technology decisions, and mentor others, ensuring both product excellence and team growth.

Typically, individuals in these roles undertake a broad spectrum of responsibilities. They are deeply involved in the full software development lifecycle, from requirement analysis and system design to implementation, testing, deployment, and ongoing optimization. A core duty is architectural design, where they choose appropriate technologies, design patterns, and frameworks to create robust, secure, and scalable applications. This often involves building backend services, APIs (RESTful or GraphQL), and dynamic frontend interfaces. They ensure code quality through rigorous practices like code reviews, writing comprehensive tests (unit, integration), and establishing CI/CD pipelines. Furthermore, senior software engineers frequently collaborate with cross-functional partners, including product managers, designers, and DevOps specialists, to translate business needs into technical specifications and seamless user experiences.

The skill set for these jobs is both deep and wide. Proficiency in one or more core programming languages (such as Python, Java, JavaScript/TypeScript, C#, or Go) is essential, alongside expertise in relevant frameworks and libraries for both frontend (e.g., React, Angular) and backend development. A strong grasp of data structures, algorithms, and system design principles is mandatory. Experience with cloud platforms (AWS, Azure, GCP) and their services for computing, storage, and networking is increasingly standard. Knowledge of database technologies, encompassing both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB) systems, is crucial. Beyond technical acumen, senior roles demand excellent problem-solving abilities to debug complex issues and optimize performance. Soft skills are equally important; effective communication to articulate technical concepts to non-technical stakeholders, project leadership, and the ability to mentor junior developers are key differentiators.

Common requirements for Senior Software Engineer jobs usually include a bachelor’s degree in computer science or a related field, although substantial equivalent experience is often acceptable. Most positions seek candidates with 5+ years of professional software development experience, demonstrating a proven track record of shipping and maintaining production systems. Employers look for individuals who exhibit end-to-end ownership of projects, a passion for continuous learning in a rapidly evolving field, and a strategic mindset focused on long-term maintainability and business impact. For those seeking to lead through technology and drive meaningful innovation, senior software engineer jobs offer a challenging and rewarding career path at the heart of the digital world.