234 mid level software engineer jobs at 97 companies in Hagerstown, MD
2d
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Mid-Level Software Engineer
United States or Westminster or Herndon
$105k-$177k/yr RemoteFull Time
4+ YOEU.S. citizen with active Top Secret (or CBP/DHS suitability) clearance, bachelor\u0002s degree or equivalent, 4+ years software development experience, proficiency in Java/Rust and Python/JavaScript/TypeScript, and experience with agile tools.
Java, Rust, Python, JavaScript, TypeScript, Jira, Confluence, git, Apache Flink, Apache Kafka, React, Next, Leaflet, Map Libre, Redux, AWS, Azure, Google Cloud, OpenStack, Kubernetes, Docker, Jenkins, ArgoCD, Harness, GitLab CI, GitHub Actions, PostgreSQL, Apache Iceberg
2mo
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Mid-Level Backend Software Engineer
Gaithersburg, Maryland, United States
$87k-$157k/yr OnsiteFull Time
2+ YOEActive Top Secret/SCI clearance with CI poly eligibility; bachelor's or master's in computer science/software engineering; 2–8 years experience depending on degree; strong Java or Python, REST API, SQL, and Linux skills.
Java, Python, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Azure
2w
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Full Stack Software Engineer, Mid-level
Sterling, Virginia, United States
$94k-$198k/yr OnsiteFull Time
5+ YOEActive TS/SCI with polygraph, Bachelor\u0002s in STEM or equivalent, 5+ years software development, proficiency in Java/Python, Linux, microservices, scripting, and experience with signals processing.
Java, Python, Bash, JavaScript, TypeScript, Vue.js, Bootstrap, Mockito, JUnit, Cypress, MariaDB, MongoDB, Git, GitLab, Jira, Confluence, GitLab CI/CD, Jenkins, SonarQube, Hibernate, Docker, Kubernetes, Nomad, Linux, xmidas
5d
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Mid-level Software Engineer
Germantown, Maryland, United States
$90k-$100k/yr RemoteFull Time
2+ YOEUS citizenship and active or obtainable Top-Secret/Q clearance; 2+ years with BS or 5+ years without degree; experience with ASP.NET/MVC/C#/SQL Server/Oracle, front-end frameworks, web APIs, Git; strong communication.
ASP.NET, MVC, C#, SQL Server, Oracle, Microservice Architecture, Angular, React, Aurelia, HTML5, JavaScript, CSS, jQuery, Bootstrap, TypeScript, Node.js, NPM, RxJS, Microsoft Visual Studio, Internet Information Services (IIS), Web API, Git
1mo
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Software Developer - Weapons Direction Systems - Mid Level
Rockville, Maryland, United States
$95k-$162k/yr OnsiteFull Time
4+ YOEB.S. in STEM, 4+ years programming experience, experience with Ada/C/C++, VxWorks, real-time embedded development, software migration/rehosting, Naval systems integration, ability to obtain Secret clearance, occasional travel.
Ada, C, C++, VxWorks, VME
2w
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Full Stack Software Engineer, Mid-level
Sterling, Virginia, United States
$94k-$198k/yr OnsiteFull Time
5+ YOEActive TS/SCI with polygraph, bachelor\u0002s in STEM or equivalent, 5+ years software development, Java/Python/Linux proficiency, microservices and frontend experience, DoD 8570-compliant cert or ability to obtain.
Java, Python, Bash, JavaScript, TypeScript, Vue.js, Vue3, Bootstrap, Hibernate, HTML, CSS, Mockito, JUnit, Cypress, MariaDB, MongoDB, Git, GitLab, Jira, Confluence, GitLab CI/CD, Jenkins, SonarQube, Nomad, Docker, Kubernetes, xmidas
2w
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Software Engineer, Mid
Herndon, Virginia, United States
$69k-$158k/yr OnsiteFull Time
2+ YOE2+ years OOP experience (Java/JEE), backend frameworks (Spring/Spring Boot), REST API development, Linux CLI, NiFi; TS/SCI clearance with polygraph required; ability to obtain DoD 8570 certification (Security+ or CISSP) within 6 months.
Java, JEE, Spring Framework, Spring Boot, REST, Linux, NiFi, MongoDB, Jira, Confluence, Git, GitLab, Apache Kafka
2w
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Software Engineer, Mid
Herndon, Virginia, United States
$69k-$158k/yr OnsiteFull Time
2+ YOE2+ years in object-oriented programming (Java/JEE), backend frameworks (Spring), API/REST development, Linux experience, ability to obtain DoD 8570 certification (Security+ or CISSP), TS/SCI clearance with polygraph required.
Java, JEE, Spring Framework, Spring Boot, REST, Linux, NiFi, Apache NiFi, PKI, MongoDB, Jira, Confluence, Git, GitLab, Kafka
2w
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Mid-Level Developer
Herndon, Virginia, United States
OnsiteFull Time
3+ YOE3+ years experience, bachelor’s degree, US citizenship, Public Trust clearance eligible; experience with modern front-end frameworks, backend languages, SQL, testing, CI/CD, and system design.
React, Vue.js, Angular, Java, JavaScript, Python, Go, PostgreSQL, SQL, RESTful, GraphQL, CI/CD
2mo
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Mid-Level Linux Software Engineer - Chantilly, Virginia, United States
Rockville or Chantilly
$100k-$140k/yr HybridFull Time
5+ YOEBachelor's in CS/CE, 5-10 yrs C++ on Linux; OO design; Linux concepts; problem solving; teamwork; US citizenship; eligible for security clearance. Masters preferred; embedded/GPU/HPC experience a plus.
C++, Linux, CUDA, GPU Computing, Kernel, Device Drivers, File Systems, Multi-threading, Memory Management
1w
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Software Test Engineer (Level 2 or 3)
Dulles, Virginia, United States
$92k-$171k/yr OnsiteFull Time
2+ YOEActive Top Secret clearance, bachelor's in STEM (or equivalent experience), 2+ years (Level 2) or 5+ years (Level 3) software test experience, proficiency with C, Python, Bash, automated testing and CI/CD, familiarity with space operations.
C, Python, Bash, Git, GitLab, Bitbucket, Jira, Confluence, Jenkins, TestComplete, PyTest, Google Test (gTest), Robot Framework, AWS, Docker, Kubernetes, GitHub Copilot, Cursor, ChatGPT
2w
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Software Engineer Sr
Herndon or King of Prussia
$93k-$186k/yr OnsiteFull Time
3+ YOEActive TS/SCI clearance required, 3+ years software engineering experience, BS degree typical, experience with C/C++ or Java on Linux, Agile, and complex system development.
Linux, C/C++, Java, Ant, Git, Maven, Gradle, Jenkins, Jira, Confluence, Collaborator, Docker, Kubernetes, Matlab, STK, AWS
1mo
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Software Developer
Sterling, Virginia, United States
OnsiteFull Time
TS/SCI with Polygraph required Day 1; strong software development skills with proficiency in JavaScript, Java, ASP.NET or scripting languages; experience with software lifecycle, security patching, and vulnerability assessment.
SCRUM Agile, JavaScript, Java, ASP.NET, Perl, PHP, Ruby on Rails, Flex, Silverlight, Google Earth Plugin
1mo
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Software Development Engineers (Level 2 or 3)
Dulles, Virginia, United States
$92k-$171k/yr OnsiteFull Time
2+ YOEMust be U.S. citizen with active Top Secret clearance at application; experience in Python, C++, Bash, and software development; Bachelor’s in CS/Engineering (or equivalent experience) with 2+ years (Level 2) or 5+ years (Level 3).
Python, C++, Bash, Postgres, Ansible, PKI
1mo
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Software Engineer
Frederick or Baltimore or Washington
$131k-$177k/yr HybridFull Time
3+ YOE3+ years embedded software experience with C/C++; experience with embedded Linux/Yocto/OpenWRT, RTOS (FreeRTOS, TI-RTOS), device drivers, board bring-up, system modeling; U.S. citizenship and ability to obtain government security clearance required.
C/C++, embedded Linux, Ubuntu, Arch, Yocto, OpenWRT, QSDK, TI-RTOS, FreeRTOS, VX Works, MS Windows, POSIX, javascript, TypeScript
1mo
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Senior Software Engineer
Ashburn, Virginia, United States
OnsiteFull Time
3+ YOEBachelor's (plus 5 years) or Master's (plus 3 years) in computer science, electronic engineering or related; eligible for DOD security clearance; experience in software development, testing, debugging; proficiency with C++, Java, C#, PLM, Visual Studio, CMake, Git, containerized applications and CI/CD.
C++, Java, C#, Product Lifecycle Management, Visual Studio, CMake, Git, Windows, Linux, containerized applications, CI/CD, Agile
4w
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Software Developer
Herndon, Virginia, United States
OnsiteFull Time
3+ YOEActive security clearance with polygraph; 3+ years software development experience or bachelor's degree; proficiency in JavaScript/Java/ASP.NET and scripting languages; experience with application security, accreditation, and SCRUM.
SCRUM, JavaScript, Java, ASP.NET, Perl, PHP, Ruby on Rails, Flex, Silverlight, Google Earth Plugin
1w
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Software Engineer
Chantilly or Herndon or Arlington
$122k-$183k/yr OnsiteFull Time
3+ YOE3+ years reverse engineering and binary analysis using IDA Pro/Ghidra; 3+ years with C/C++ or Python and assembly; experience with debuggers (GDB, WinDbg, OllyDbg); understanding of Windows/Linux security features.
IDA Pro, Ghidra, GDB, WinDbg, OllyDbg, Python, C/C++, x86, x64, ARM Assembly
4w
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Cloud Developer Mid- Level
Winchester or Washington or Tysons or Chantilly or Quantico or Huntsville
$80k-$135k/yr HybridFull Time
5+ YOEMinimum 5 years cloud experience, active Top Secret/SCI eligibility required, experience with DevSecOps, cloud migration, modernization, infrastructure automation, and secure cloud architecture.
2mo
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Software Engineer (Multiple Levels) (Evergreen)
Summit Point, West Virginia, United States
$88k-$155k/yr OnsiteFull Time
Bachelor's in CS/engineering; 2-14 years experience depending on level; US citizenship; active Secret clearance; Java; APIs; AI/ML; hardware familiarity.
Java, APIs, C/C++, Docker, Git, CMake, Confluence, JIRA, Jenkins, Artifactory, Python, AI/ML