39,014 senior software developer jobs at 7,723 companies in United States
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Senior Software Developer
Stennis Space Center, Mississippi, United States
OnsiteFull Time
Radiance Technologies: Employee-owned defense technology contractor providing engineering, intelligence, cyber, and advanced systems solutions to government customers.
7+ YOE7–10+ years in software development with Python, data processing, XML/JSON, and web technologies; active Secret clearance or ability to obtain interim; BS in CS/Software/Data fields.
7+ YOE7+ years in large-scale software development; strong .NET stack; Bachelor's in CS or related field; experience with microservices and relational DBs.
.NET Core, .NET Framework, Visual Studio, C#, ASP.NET Web API, ASP.NET MVC, MS SQL Server, T-SQL, Azure DevOps, TFS, Git, IIS, JSON, RabbitMQ, MassTransit
20+ YOE20+ years software design, development and test; Python scripting; embedded software; JIRA; AGILE; strong communication; DoD/AFSIM familiarity a plus; U.S. Citizen; active Secret clearance.
Globus MedicalNYSE: GMED: Innovating musculoskeletal technology to improve patient care.
8+ YOE8+ years of software development; OO design; C++ multi-thread; motion control; UI development a plus; agile; travel up to 5%; capable of independent and collaborative work.
C++, Multithreading, UI development, Motion control software, Kinematics and control algorithms, Agile
UpstartNasdaq: UPST: Public AI lending marketplace connecting consumers with banks and credit unions for personal, auto, and home-equity loans.
4+ YOE4+ years of professional software engineering; production systems experience; backend or UI development; on-call experience; multi-quarter project delivery.
Backend Development, Frontend Development, Production Systems, Observability, On-call
Kepora: Woman-owned software engineering and IT consulting firm serving federal contractors with cloud, data science, and custom software.
5+ YOEU.S. citizenship and active TS/SCI clearance with full scope polygraph required; senior-level software development experience, agile development, system modernization, mentoring and possible team supervision.
SS&C TechnologiesNASDAQ: SSNC: Global provider of financial services and healthcare technology solutions.
5+ YOE5+ years of software development; full-stack SaaS experience; clean, maintainable code; strong communication; able to work in fast-paced environment.
Frogslayer: Texas-based AI and automation integrator delivering custom software and workflow solutions for American middle-market businesses.
5+ YOESenior software development experience with databases, APIs, cloud deployment, LLMs, client advising, Linux and Windows systems, application maintenance, and mentoring. AWS and/or Azure experience required.
LTA Research: Private aerospace R&D building and flying experimental and certified airships for passenger and cargo transport.
7+ YOEBS/MS in Computer Science or Computer Engineering; 7+ years in senior software engineering; RTOS/embedded, C#/C++, Python; GitLab CI/CD; safety-critical software experience; strong communication and teamwork.
UnitedHealth GroupNYSE: UNH: Diversified health care helping people live healthier lives.
6+ YOE6+ years software development; 4+ years Python, .NET, C#; 4+ years Azure, CI/CD, IaC; 2+ years automation; 1+ year healthcare domain; 1+ year Copilot; Minnesota telecommuting optional.
.NET, Python, C#, Azure, CI/CD, Infrastructure as Code, Power Automate, Terraform, Copilot
Toronto or Vancouver or Calgary or Dublin or Manchester or Sydney or Barcelona or Bogotá or London or New York City
$145k-$196k/yrHybridFull Time
Clio: Cloud-based legal practice management and software platform.
Toronto-based senior software developer with strong Ruby on Rails experience building scalable web applications, mentorship experience, and history with large-scale SaaS products; curious, collaborative, and AI-oriented.
Ruby on Rails, Rails, Java, Python, C++, JavaScript
Booz Allen HamiltonNYSE: BAH: Global firm providing management, technology, and engineering consulting services.
5+ YOESenior back-end software engineer with 5+ years in software development; experience with Java and Springboot, Elastic, Agile methodologies, TS/SCI with polygraph required; Bachelor's in Computer Science preferred (14+ years experience alternative).
Elastc, Java, Springboot, JavaScript, SQL, Python, Node.js, Groovy, Scala, NiagraFiles (NiFi), Spring Cloud, Spring Core, Spring Data, CI/CD, Linux
Anduril Industries: Defense technology developing AI-powered autonomous military systems.
6+ YOESenior software engineer with 6+ years in multiple languages; data processing experience; able to navigate complex systems; eligible for U.S. Secret clearance.
Warrior Insurance Network: Private insurance marketing organization serving independent agents and member carriers with personal and commercial auto products.
5+ YOEBachelor's degree or equivalent experience, 5+ years of software development, and advanced proficiency with C#, .NET, React, Git, Agile, CI/CD, software architecture, testing, and AI-assisted development tools.
C#, .NET, React, Git, Agile, CI/CD, Microsoft Azure, AWS, SQL, REST APIs, Claude Code, Codex, GitHub Copilot
Imricor Medical SystemsASX: IMR: U.S. medical device manufacturer developing MRI-compatible products for physicians performing image-guided cardiac ablation.
5+ YOE5+ years software engineering in regulated environments; strong in C#, Python, JavaScript, Babylon; experience with complex integrated systems; strong debugging; ownership of documentation; cross-functional collaboration.