📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here
Software Developer Jobs in Harrington, DE, US
160+ software developer jobs from 85 companies hiring in Harrington, DE, US.
4d
Save
Mark Applied
Hide
Software Engineer
Aberdeen Proving Ground or Fort Belvoir or Huntsville or Austin or Tobyhanna Army Depot or Letterkenny Army Depot or Lakehurst
OnsiteFull Time
5+ YOE5+ years of experience in software development; strong ability to design, develop, test, and maintain software systems; experience collaborating with cross-functional teams.
3w
Save
Mark Applied
Hide
Software Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
7+ YOE7+ years in software development; TS/SCI with Poly; Bachelor's in CS; Linux development; C/C++, Python; Git/GitLab; IDEs (VSCode, Eclipse); Agile (Scrum); geospatial processing and SDR familiarity.
Linux, C/C++, Python, Git, GitLab, VS Code, Eclipse, Agile (Scrum)
1mo
Save
Mark Applied
Hide
1650 - Software Developer
Belcamp, Maryland, United States
$83k-$140k/yr OnsiteFull Time
Sigma Defense: Develops tactical communications and intelligence systems for defense.
10+ YOE10+ years in software development; 5+ years DoD software support; strong requirements analysis, architecture, and coding skills; Java, Python, C#, and JavaScript; ability to document software; U.S. citizen; Secret security clearance or higher; Bachelor's Science degree.
Java, Python, C#, JavaScript
1w
Save
Mark Applied
Hide
OCO Software Developer/Engineer
Annapolis Junction, Maryland, United States
$149k-$201k/yr HybridFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
8+ YOE8+ years of related experience; proficient in C/C++, Python; ability to obtain TS/SCI clearance; develop cyber tools and software.
C, C++, Python, Rust, Go, Git, CI/CD
1mo
Save
Mark Applied
Hide
Software Developer - C#
Aberdeen, Maryland, United States
$83k-$174k/yr OnsiteFull Time
4+ YOEActive Secret clearance, TS/SCI preferred, Bachelor's in software development or related field, 4+ years experience, strong C# and ASP.NET Core, PostgreSQL, API, cloud, containerization, and security testing.
C#, Asp.Net Core, DAST, SAST, STIGs, PostgreSQL, API, Cloud, Containerization
2mo
Save
Mark Applied
Hide
Software Engineer
Annapolis Junction or Hanover
$50k-$290k/yr OnsiteFull Time
US citizen with active TS/SCI clearance; Linux proficiency; programming in Python/Java/C/C++/JavaScript; Git; container tech (Docker/Kubernetes); shell scripting; experience with CI/CD; strong security-focused software development.
Bash, Python, Java, C, C++, JavaScript, Git, Docker, containerd, Podman, Kubernetes, Ansible, FastAPI, React, MongoDB, PostgreSQL, RabbitMQ, Kafka, Elastic Stack, Prometheus, Grafana, Splunk, Jira, Confluence, Slurm, AWS
1mo
Save
Mark Applied
Hide
CNO Software Engineer
Annapolis Junction, Maryland, United States
$69k-$158k/yr OnsiteFull Time
3+ YOE3+ years software development; embedded hardware/software; vulnerability analysis; network protocol analysis; Linux; Git; scripting; TS/SCI with poly?
C, C++, Golang, JavaScript, Python, Ruby, Git, Wireshark, tshark, Linux
1mo
Save
Mark Applied
Hide
Java Software Engineer
Annapolis Junction, Maryland, United States
$147k-$249k/yr OnsiteFull Time
Bachelor's in CS or related; experience with Java/JEE, Python, C/C++, SQL, SOAP/WSDL; UI development; Windows/Linux; Jenkins; TS/SCI Polygraph; strong software development principles.
Java, Python, C/C++, SQL, XML, HTML, Tomcat, WebLogic, JBoss, Jenkins, Postgres, Oracle, Selenium, Mockito, Cucumber, UFT, FitNesse, TDD, SAFe
3w
Save
Mark Applied
Hide
Journeyman Software Developer
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
4+ YOEBachelor's in CS/Engineering with 4 years experience or 6 years related software development experience; US citizenship; SECRET clearance; proficiency in Python, C++, Java, C#; CI/CD; DoD/C-UAS experience preferred.
Python, C++, Java, C#, CI/CD, containerization, microservices, cloud
1w
Save
Mark Applied
Hide
Software Engineer I (Onsite)
Fulton, Maryland, United States
$63k-$120k/yr OnsiteFull Time
Bachelor's degree in STEM; Java and C++ experience; multithreaded software development; willingness to work onsite in Fulton, MD; ability to obtain/maintain DoD Secret clearance; U.S. citizenship.
Java, C++, Maven, Apache Ant, Jenkins
1mo
Save
Mark Applied
Hide
Senior Software Engineer - Front End
Annapolis Junction, Maryland, United States
$187k-$250k/yr HybridFull Time
20+ YOESenior front-end software engineer responsible for design, development, testing, deployment, leadership, and collaboration; experience with web services, Agile, and accessibility standards.
AWS, Git, Docker, Kubernetes, HAProxy, Nginx, Node.js, Angular, React, NoSQL databases, Relational databases, Jira, Confluence
2mo
Save
Mark Applied
Hide
Software Developer III
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
10+ YOETen years’ experience in design/development; strong HTML/CSS/JavaScript/XML; UX and visual design skills; experience with design tools and web development.
HTML, CSS, JavaScript, XML, Dreamweaver, Photoshop, PowerPoint
2mo
Save
Mark Applied
Hide
Software Engineer 2
Annapolis Junction, Maryland, United States
OnsiteFull Time
RealmOne: Provides advanced technology and cybersecurity for national security missions.
14+ YOE14+ years software engineering experience; bachelor's in CS; current security clearance; full-stack and infra experience; Kubernetes, CI/CD, Go/Python/TypeScript; GitOps; Docker; Linux.
Kubernetes, Helm, GitOps, ArgoCD, Fleet, Docker, Go, Python, TypeScript, Linux
2w
Save
Mark Applied
Hide
Summer 2026 Software Developer Internship
Annapolis Junction, Maryland, United States
$26-$35/hr OnsiteFull Time
0+ YOE0+ years of related experience; proficiency in Python, Java, C/C++, Rust, JavaScript/TypeScript; US citizenship required; software development best practices; teamwork.
Python, Java, C/C++, Rust, JavaScript/TypeScript
3w
Save
Mark Applied
Hide
Junior Software Developer
Annapolis Junction, Maryland, United States
$139k-$179k/yr OnsiteFull Time
7+ YOETop Secret clearance with polygraph; US citizenship; 7 years software engineering experience; BS in CS or related field; cloud/big data exposure; experience with data/workflow systems.
Hadoop, Hive, Pig, HDFS, MapReduce, JSON, BSON, HBase, Accumulo
2w
Save
Mark Applied
Hide
Software Engineer 3 - III
Annapolis Junction, Maryland, United States
RemoteFull Time
12+ YOE12+ years software engineering experience on complex programs; bachelor's in CS; 4 additional years may substitute for degree.
React, JavaScript, node.js, Rust, Python, shell script, Kubernetes, Helm, Micro-Services, Service-mesh, Load Balancing, Cloud Migration, nifi, JEST, Grafana, InfluxDb, Elasticsearch, Redis, mysql, Apache Superset, RabbitMQ, Kafka, Ansible, Salt, Terraform, Web-Sockets, JBLOCKS, CASPORT, Neo4j
2mo
Save
Mark Applied
Hide
Software Engineer (NH-2)
Annapolis Junction, Maryland, United States
$180k-$205k/yr OnsiteFull Time
14+ YOEPython, Docker/Kubernetes; AWS and ML experience preferred; 14 years software engineering experience; bachelor’s degree or 18 years total experience.
Python, Docker, Kubernetes, AWS, PyTorch, NumPy, Pandas, Scikit-learn, GitOps, EC2, S3, RDS
1mo
Save
Mark Applied
Hide
Software Engineer II, Government Systems
California, Maryland, United States
$85k-$115k/yr OnsiteFull Time
3+ YOEDesign, develop, test, and maintain distributed and embedded software for UAV/USV programs; containerization; Linux/DevSecOps; DoD clearance eligibility; travel.
Linux, Docker, Kubernetes, Terraform, Ansible, DevSecOps
2mo
Save
Mark Applied
Hide
Software Engineer
Fort Meade, Maryland, United States
$200k-$230k/yr OnsiteFull Time
14+ YOETS/SCI with poly; Bachelor's in CS/Engineering; 14 years experience; Linux, C++, Java; scripting; Git; Docker; strong problem-solving and communication.
C++, Java, Shell, Python, JavaScript, Bash, Git, Docker, Linux
5d
Save
Mark Applied
Hide
Software Engineer - Junior Level
Annapolis Junction, Maryland, United States
$98k-$123k/yr HybridFull Time
0+ YOEBachelor's in CS or related field or 4 years of software engineering experience; TS/SCI with poly; Agile, Jira/Confluence; experience with Java/C++/Python, Git, Postgres; AWS preferred.
Git, Java, C++, Python, PostgreSQL, Jira, Confluence, AWS, Docker, Kubernetes, HAProxy, Nginx, Elastic Stack
1w
Save
Mark Applied
Hide
Expert Offensive CNO Software Developer
Hanover, Maryland, United States
$178k-$353k/yr OnsiteFull Time
6+ YOEActive US security clearance with polygraph; 6+ years in cyber/software; BS in Math/Science/Engineering or related; programming in Assembly/C/C++/Java/Perl/Python; experience with CNO tools.
Assembly, C, C++, Java, Perl, Python, CNO Tools and Techniques
7h
Save
Mark Applied
Hide
Senior Software Engineer
Gambrills, Maryland, United States
$91k-$130k/yr HybridFull Time
7+ YOE7+ years hands-on experience building scalable software; design patterns and RESTful APIs; Java/C/C++, Python/C# beneficial; Agile/Scrum; ICDs; strong communication.
Java, C/C++, Python, C#, RESTful APIs, Agile/Scrum, ICD
1d
Save
Mark Applied
Hide
Senior Software Quality Assurance Engineer I
Annapolis, Maryland, United States
OnsiteFull Time
8+ YOE8+ years in software quality assurance; software development background; US work eligibility; pre-employment check.
3w
Save
Mark Applied
Hide
Senior Software Engineer
Annapolis Junction, Maryland, United States
$170k-$260k/yr OnsiteFull Time
14+ YOEActive TS/SCI with Polygraph clearance; U.S. citizenship; 14+ years software engineering experience; BS in CS or related; 4 more years can substitute for degree; strong communication and independent work ability.
Java, Spring Framework, Spring Boot, GhostMachine Analytic, Portable Map Reduce, NiFi, Notifier, Atlassian tool suite, GitLab
2w
Save
Mark Applied
Hide
Software Engineer, Lead
Annapolis Junction, Maryland, United States
$113k-$257k/yr RemoteFull Time
20+ YOEFull-stack developer with Kubernetes, Docker, Helm, Python, and version control; TS/SCI with polygraph; Bachelor's in CS or 20+ years experience, or 24+ years without a degree.
Kubernetes, Docker, Helm, Python, Git
4d
Save
Mark Applied
Hide
Senior Principal Software Engineer/ Staff Software Engineer
Bowie or Baltimore or United States
$222k-$232k/yr HybridFull Time
6+ YOEBachelor’s degree in Computer Science or related field with at least 6 years of IT experience; strong Unix, C#, .NET, Angular, SOAP/REST, ASP.NET Core 2.x, Kafka, Azure API Gateway, PCF.
C#, .NET Framework, Angular, SOAP, REST, ASP.NET Core, Kafka, Azure API Gateway, Pivotal Cloud Foundry, Unix
1mo
Save
Mark Applied
Hide
Software Engineer, Level 1 (AE26031323SW1)
Annapolis Junction, Maryland, United States
$145k-$155k/yr HybridFull Time
7+ YOESeven years of DoD/IC software engineering experience; Java, Python; Git; IntelliJ/Eclipse; Maven; Spring Boot/Flask; Top Secret/SCI with polygraph.
Java, Python, Git, IntelliJ, Eclipse, Maven, Spring Boot, Flask, Kafka, Flink, MongoDB, ArangoDB, Redis, PostgreSQL, Elasticsearch, Kubernetes, Docker, Containerd, AWS
3w
Save
Mark Applied
Hide
Embedded Software Engineer (Hybrid- Aberdeen, Maryland)
Aberdeen Proving Ground or Jersey City or Middletown or Aberdeen Proving Ground
$130k-$165k/yr HybridFull Time
8+ YOE8+ years embedded Linux software development; Xilinx UltraScale+; PetaLinux; PCB-based hardware bring-up; C/C++ and scripting; Git/SVN; DoD Secret clearance.
Xilinx UltraScale+, PetaLinux, C/C++, Python, Git, SVN, JTAG, UART, GDB, strace, perf, dmesg
1mo
Save
Mark Applied
Hide
Software Engineer - Hybrid
Annapolis Junction, Maryland, United States
$165k-$185k/yr HybridFull Time
3+ YOETS/SCI with Poly required; degree plus years; Linux, Bash, Python/Java, Airflow, Spark, Docker/Podman, Git; AWS familiarity.
Apache Airflow, Python, Java, Bash, Linux, Apache Spark, Docker, Podman, Git, AWS
1w
Save
Mark Applied
Hide
Software Engineer 1
Annapolis Junction, Maryland, United States
OnsiteFull Time
7+ YOESeven years of SWE experience in similar scope; Bachelor’s in CS or related field; strong Python/GIT with CI/CD and Kubernetes, or VueJS stack; active clearance with polygraph.
Python, Git, CI/CD, Kubernetes, Vue.js, Vuetify, Leaflet, ElasticSearch, Node.js, REST, GRPC, MongoDB
1d
Save
Mark Applied
Hide
Software Engineer Senior
Aberdeen Proving Ground, Maryland, United States
$95k-$150k/yr OnsitePart Time
8+ YOEActive Top Secret clearance; Master’s in engineering or computer science; 8+ years related experience; part-time, salary-exempt; Aberdeen Proving Ground, MD.
2mo
Save
Mark Applied
Hide
Expert CNO Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
20+ YOESenior-level CNO software engineer with expert-level Python/C/C++, hardware/software capabilities, and TS/SCI with poly clearance.
Python, C/C++, assembly, JIRA, Confluence, Crucible
1mo
Save
Mark Applied
Hide
Senior Software Engineer - FFPP-8755
Annapolis Junction, Maryland, United States
$205k-$215k/yr OnsiteFull Time
14+ YOEFourteen years of software engineering experience; a CS degree; four additional years of SWE experience may substitute for the degree.
1d
Save
Mark Applied
Hide
Software Developer in Test (SDET)
Annapolis, Maryland, United States
RemoteFull Time
10+ YOEStrong programming skills in C#, Java, or Python; extensive software testing experience; familiar with Agile/SDLC; remote; US security clearance.
Selenium, TestNG, JUnit, QTP, LoadRunner, GitHub Actions, Git, Subversion, JIRA, Bugzilla, JMeter, Gatling, SQL, APIs, AWS, Azure
3w
Save
Mark Applied
Hide
CyberTron Contract: Software Engineer I
Aberdeen, Maryland, United States
$85k-$110k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
1+ YOEEntry-level software engineer with skills in Java/C/C++, Python, or JavaScript; knowledge of backend, web apps, and microservices; DoD environment familiarity preferred.
Java, C/C++, Python, JavaScript, Backend development, Web technologies, Microservices, SQL
4w
Save
Mark Applied
Hide
Lead Software Engineer - Java AWS
Wilmington or Tampa
OnsiteFull Time
5+ YOE5+ years Java software engineering; AWS experience; CI/CD and cloud native; strong SDLC and agile practices; security focus; able to lead architectural discussions.
Java, AWS, CI/CD, Cloud, Claude, Copilot
1w
Save
Mark Applied
Hide
Software Engineer - Early Career
Camden or Moorestown
OnsiteFull Time
0+ YOEBachelor’s degree in Computer Science or equivalent; OO C++ experience; automated testing tools; US citizen; ability to obtain government security clearance
C++, UML, Linux, Git, JIRA, Confluence, Python
3mo
Save
Mark Applied
Hide
Full-Stack Software Engineer
Annapolis Junction or Annapolis
$100k-$210k/yr OnsiteFull Time
3+ YOEBS in CS/CE/SE or related; 3+ years OO software; MongoDB experience; TS security with poly; Spring Boot; AWS; Docker/Kubernetes; React; CI/CD.
MongoDB, Spring Boot, AWS, Docker, Kubernetes, React, CI/CD
1mo
Save
Mark Applied
Hide
CNO Software Engineer
Annapolis Junction, Maryland, United States
$250k-$300k/yr OnsiteFull Time
7+ YOE7+ years of experience; TS clearance; strong C/C++, Python; assembly; reverse engineering with Ghidra/IDA Pro; Windows/Linux CNO; persistence focus.
C/C++, Python, Assembly, Ghidra, IDA Pro, Windows, Linux, NDK
1mo
Save
Mark Applied
Hide
Software Engineer(Front-End/React), Senior Advisor
Laurel, Maryland, United States
$146k-$234k/yr OnsiteFull Time
14+ YOE14+ years SWE experience; BS in CS/Engineering/Math/Statistics; strong React and JavaScript; active TS/SCI with poly; front-end development
React, JavaScript, Redux, TypeScript
HiringCafe market data
Software Developer Jobs market signals in Harrington, DE, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
160+
Hiring companies
85
Fresh sample
58% new in 30d
Salary visibility
75% show pay
Companies appearing in this market
Booz Allen HamiltonLockheed MartinCrisis24GDITManTechPeratonRealmOneSyms Strategic Group
Work location mix in visible results
Onsite: 61Hybrid: 14Remote: 8