491 senior software development engineer jobs at 175 companies in Bear, DE
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Senior Software Development Engineer Mainframe COBOL CICS
Hartford or Irving or Scottsdale or Illinois or Tampa or Wellesley or Blue Bell or United States
$93k-$222k/yr HybridFull Time
5+ YOE5+ years mainframe development (COBOL, JCL, CICS, DB2, SQL, MQ, Xpeditor, Endevor), 2+ years offshore vendor support, 2+ years healthcare claims experience, strong systems analysis, software design, Agile experience, and strong communication skills.
COBOL, JCL, CICS, DB2, SQL, MQ, Xpeditor, Endevor, Agile, Scrum
6d
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Senior Software Developer (Agentic Development)
Philadelphia or United States
$110k-$135k/yr RemoteFull Time
5+ YOE5+ years software development experience; BS/MS in technical discipline; strong OOP, design patterns, Agile experience; expertise with Angular, ASP.NET Core, C#, JavaScript/TypeScript, PostgreSQL, Entity Framework Core; experience building developer tools and automation.
Angular, ASP.NET Core, C#, JavaScript, TypeScript, CSS, SASS, HTML, PostgreSQL, Entity Framework Core
2w
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Software Development Engineer
Philadelphia or Reston
OnsiteFull Time
5+ YOE5+ years building and operating distributed backend systems, experience with GraphQL/REST APIs, Python/Go/Java/C++, relational or NoSQL databases, containerized deployments and CI/CD; Bachelor's preferred; must be authorized to work in the US (no sponsorship).
GraphQL, REST, PostgreSQL, Python, Go, Java, C++, Docker, Kubernetes, MLOps, CI/CD
2mo
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Software Engineer - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
7+ YOESenior software engineer with DoD experience, specializes in biometric systems, secure coding, and Agile/DevSecOps.
Android, CI/CD, DevOps, DevSecOps, Security, Encryption
3mo
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Senior Software Engineer
Moorestown, New Jersey, United States
$106k-$180k/yr OnsiteFull Time
5+ YOEBachelor's degree or higher; 5-7 years software development experience; U.S. citizenship with active DoD Secret clearance; Java, C++, Python; Agile; OO design; Linux; Eclipse; UML; driver-based and automated test environments.
Java, C++, Python, Linux, UNIX, Eclipse, UML, JIRA, Clearcase, xUnit, Junit, CPPUnitLite, IDE
4d
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Senior Software Engineer
Berwyn, Pennsylvania, United States
$158k-$189k/yr RemoteFull Time
6+ YOEBachelor's degree plus 6 years or master's degree plus 4 years in software engineering; 4 years in Java/Spring, AWS, SQL/NoSQL, Jenkins and GitLab; 3 years in API development using Apigee or Spring Cloud Gateway.
Java, Spring, AWS, SQL, NoSQL, Jenkins, GitLab, Apigee, Spring Cloud Gateway
2mo
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Software Engineer - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
Systems Products and Solutions: Provides logistics and technical services to defense agencies.
7+ YOESenior software engineer with DoD biometric systems experience; security clearance required; Agile/DevSecOps; Android apps; cybersecurity.
Android, DevOps, DevSecOps, CI/CD, Security testing, Encryption
1mo
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Senior Software Engineer
Lake Forest or Houston or Philadelphia
$124k-$207k/yr HybridFull Time
Strong software development in C# (.NET) or Node.js; hands-on Microsoft Azure cloud experience; CI/CD, DevOps, container experience; knowledge of cloud architecture, networking, and secure development practices.
Microsoft Azure, C#, .NET, Node.js, CI/CD
1mo
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Senior Software Engineer – Mobile Development (iOS)
Philadelphia, Pennsylvania, United States
$105k-$110k/yr OnsiteFull Time
5+ YOE5+ years professional iOS development, strong Swift/Objective-C, Xcode, UIKit/SwiftUI/Combine, Core Data, App Store deployment, REST API integration, familiarity with backend tech and accessibility, bachelor\u0002s degree preferred, city residency within six months, cover letter required.
Swift, Objective-C, Xcode, UIKit, Core Data, SwiftUI, Combine, App Store Connect, Git, React Native, Node.js, SQL, PostgreSQL, Oracle, MSSQL, Amazon Web Services (AWS)
1mo
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Nuuly Senior Software Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
5+ YOE5-7 years software engineering experience with ~2 years senior-level responsibility; strong JVM (Java/Kotlin/Scala), microservices, Postgres/AlloyDB, cloud (GCP/AWS/Azure), Docker/Kubernetes, distributed systems, and AI tool usage.
Kotlin, Spring, Postgres, AlloyDB, Google Cloud Platform (GCP), AWS, Azure, Docker, Kubernetes, Java, Scala, Python, Go, Node/TypeScript, Kafka, Spark, Storm, ChatGPT, Claude, Cursor, Windsurf, Copilot
1mo
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Nuuly Senior Software Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
5+ YOE5+ years software engineering experience with ~2 years senior-level responsibilities; strong JVM (Java/Kotlin/Scala) or backend skills, microservices, cloud (GCP/AWS/Azure), Docker/Kubernetes, Postgres/AlloyDB, and practical LLM/AI tool use.
Java, Kotlin, Scala, Python, Go, Node, TypeScript, JVM, Spring, Google Cloud Platform (GCP), AWS, Azure, Docker, Kubernetes, Postgres, AlloyDB, Kafka, Spark, Storm, RESTful APIs, ChatGPT, Claude, Cursor, Windsurf, Copilot, MCP
1mo
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Senior Software Engineer
Aberdeen, Maryland, United States
$90k-$198k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience in Defense, BA/BS or equivalent experience, proficiency with C++, Java, Python, C#, secure coding and Defense standards, DoD cybersecurity certification preferred.
C++, Java, Python, C#, Git, SVN, CI/CD, automated testing tools
1mo
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Senior Software Engineer
Conshohocken, Pennsylvania, United States
$110k-$130k/yr OnsiteFull Time
6+ YOE6+ years full-stack software engineering experience with Node.js, React, SQL Server, Azure; strong SQL tuning, performance optimization, and production ownership from data layer to UI.
Node.js, React, SQL Server, Azure, Container Apps, Key Vault, Container Registry, Public Cloud Infrastructure, Microsoft Office Suite, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Git, Docker, CI/CD, Yardi Voyager, RealPage, LRO, Banner
1d
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Senior Software Engineer
Conshohocken, Pennsylvania, United States
HybridFull Time
5+ YOEBachelor's degree in computer science, engineering, or related field; 5 years building software; 2 years AWS architecture; JavaScript, TypeScript, SQL, APIs, event-driven systems, and technical leadership.
Electronic Data Interchange (EDI), API, AWS, JavaScript, React, Node.js, Express, React Native, TypeScript, AWS Cloud Development Kit (CDK), Terraform, AWS Lambda, Amazon ECS, AWS Fargate, Amazon Aurora PostgreSQL, SQL, JSONB
2mo
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Senior Software Engineer
Arlington or Mount Laurel or San Diego or Fall River
$135k-$273k/yr HybridFull Time
7+ YOEBachelor's degree or equivalent, 7+ years software engineering experience, able to obtain/maintain Secret U.S. security clearance, experience leading/mentoring, expertise in SDLC, OOP, distributed systems, secure coding, testing, and integration.
SDLC, Service-Oriented Architecture (SOA), AI, Generative AI
1mo
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Senior Software Engineer
Aberdeen Proving Ground, Maryland, United States
$150k-$180k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience; bachelor’s in CS/SE/EE or equivalent experience; active TS/SCI clearance; US citizenship; experience with full-lifecycle development, hardware-software integration, modeling, and testing.
1mo
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SENIOR SOFTWARE DEVELOPER/ENGINEER (CLOUD/CYBER)
Huntsville or Aberdeen or Colorado Springs or Crestview or Tupelo
OnsiteFull Time
7+ YOEBS in CS/Software Eng or equivalent, 7+ years software development experience, DoD Top Secret/SCI eligibility, experience with Python, containers, AI/LLMs, databases, Linux, AWS, and Agile/Scrum.
LLMs, Ollama, LM Studio, Python, C#, Go Lang, React, JavaScript, HTML, CSS, Git, Docker, Bash, TensorFlow, PyTorch, SQL, MongoDB, PostgreSQL, Redis, Linux, AWS, RESTful API, Agile/Scrum
2w
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Senior Software Developer (NLP)
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
5+ YOEUS citizen with Secret clearance; bachelor’s degree with 5 years relevant software development experience (or 8 years experience); experience integrating NLP into production, proficiency in modern programming languages and mission-critical systems.
Python, C++, Java, C#, Go, Docker, Kubernetes, transformer-based frameworks, vector databases, LLM APIs
1w
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Senior Specialist - Software Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
6+ YOEBachelor's in CS/Information Systems or equivalent,6+ years software development experience,strong Java and OOD skills,EMR not applicable,clear communicator,experience with low-latency systems preferred.
Java, AWS, AI/ML
1mo
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Senior Software Engineer
Philadelphia or United States or Canada
$123k/yr RemoteFull Time
4+ YOE4+ years software development experience, full-stack web development, CI/CD and data ingestion familiarity, strong communication and mentoring skills, history of producing maintainable testable code for high-traffic sites.
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