Python Developer Jobs in Seaford, DE, US

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

Save

Mark Applied

Hide

Software Developer

Annapolis Junction, Maryland, United States

OnsiteFull Time

BigBear.aiNYSE: BBAI: Provides AI-powered decision intelligence software for national security.

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)

2mo

Save

Mark Applied

Hide

2mo

Associate CNO Developer

Hanover, Maryland, United States

OnsiteFull Time

ManTech: Delivers technology and cybersecurity solutions to national security agencies.

4+ YOE4+ years technical experience (HS path) or relevant degree; programming in Python or C/C++; network concepts and security knowledge; capable of developing CNO capabilities.

Python, C++

1mo

Save

Mark Applied

Hide

1mo

Java Software Engineer

Annapolis Junction, Maryland, United States

$147k-$249k/yr OnsiteFull Time

BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.

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

2mo

Save

Mark Applied

Hide

2mo

Full Stack Developer (MD, Hanover)

Hanover, Maryland, United States

OnsiteFull Time

Eccalon: Develops cybersecurity, AI, and defense technology solutions for government.

3+ YOE3+ years as a full stack developer; React/Next.js; Node.js/Python; DoD/regulatory experience a plus; AI/LLM integration experience.

React, Next.js, Node.js, Python, AWS, PostgreSQL, DynamoDB, MongoDB, REST APIs, Git

Save

Mark Applied

Hide

Software Developer

Welcome, Maryland, United States

$75k-$102k/yr OnsiteFull Time

Space Ground System Solutions: Provides engineering services for satellite ground systems and space missions.

0+ YOE0-5 years software engineering experience; Linux environment proficiency; Java, Go, JavaScript, C/C++, Python knowledge.

Java, Go, JavaScript, C/C++, Python, Linux, Red Hat Enterprise Linux (RHEL), Docker, Kubernetes, Podman, Git, Bitbucket, Jira, HTML, CSS, React, REST, JSON, WildFly

2mo

Save

Mark Applied

Hide

2mo

Software Engineer

Annapolis Junction or Hanover

$50k-$290k/yr OnsiteFull Time

The Swift Group: Engineering and technology solutions for the national security community.

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

Save

Mark Applied

Hide

Summer 2026 Software Developer Internship

Annapolis Junction, Maryland, United States

$26-$35/hr OnsiteFull Time

GDITNYSE: GD: Delivers IT and mission services to government agencies.

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

1mo

Save

Mark Applied

Hide

1mo

CNO Developer

Hanover or Fort Meade

$120k-$150k/yr OnsiteFull Time

T-Rex Solutions: IT modernization and cybersecurity for the federal government.

4+ YOEBS in a technical field or HS diploma with 4+ years of technical experience; proficient in Python or C/C++; capable of troubleshooting and debugging; onsite role; TS/SCI w/Polygraph clearance.

Python, C/C++, TCP/IP, socket programming, Assembley programming concepts, Atlassian tools (JIRA Confluence Crucible), JIRA, Confluence, Crucible

1mo

Save

Mark Applied

Hide

1mo

Embedded Developer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Tiber Technologies: Providing specialized engineering and security services for federal missions.

Must be a U.S. citizen; active clearance with a polygraph; Bachelor's degree in CS, engineering, or related field; embedded/low-level development experience preferred

Linux, Windows, Embedded systems, Ghidra, C, C++, Python, Rust, Go, Git, Subversion, Jira, Confluence, PowerShell, Bash, Assembly, Java, JavaScript

1mo

Save

Mark Applied

Hide

1mo

1655 - Software Developer

Patuxent River, Maryland, United States

$90k-$120k/yr OnsiteFull Time

Sigma Defense: Develops tactical communications and intelligence systems for defense.

2+ YOE2-5 years software development experience; Java; Linux (RHEL); containerized microservices; US citizen; bachelor's degree; active Secret clearance or higher

Linux, RHEL, Java, Python, Atlassian Tools, Docker

1mo

Save

Mark Applied

Hide

1mo

Database Engineer 2

Annapolis Junction, Maryland, United States

OnsiteFull Time

RealmOne: Provides cybersecurity and intelligence services for national security missions.

5+ YOEDatabase Engineer with MongoDB/MariaDB experience, Python (Django/Flask), REST, microservices, AWS/C2S, Docker, and Agile practice.

MongoDB, MariaDB, Python, Django, Flask, REST, Swagger, AWS, C2S, Docker, VS Code, JSON, XML, Jira, Confluence, Git

Save

Mark Applied

Hide

Expert Offensive CNO Software Developer

Hanover, Maryland, United States

$178k-$353k/yr OnsiteFull Time

Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.

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

Save

Mark Applied

Hide

AI Software Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

NetSage: Delivering specialized cyber services to the U.S. federal government.

5+ YOETS/SCI with polygraph; BS in CS or related STEM with 5 years experience; Python; AI/ML tooling; Agile tools; security clearances.

Python, LLM, RAG, Git, Jira, Confluence, Rust, Claude Code, Codex

2mo

Save

Mark Applied

Hide

2mo

Lead CNO Developer (Onsite)

Annapolis Junction, Maryland, United States

OnsiteFull Time

Nightwing: Provides cybersecurity and intelligence services for national security missions.

12+ YOE5+ MgmtBachelor’s degree plus extensive experience; 12+ yrs in programming (Assembly, C, C++, Java, Perl, Python); 10+ yrs on CNO tools; 5+ yrs leading teams; 4+ yrs evading IDS; 4+ yrs sockets programming.

Python, C, C++, Java, Perl, Assembly, Bash, PowerShell, IDA Pro, Ghidra, OllyDbg, Git, Networking, IDS evasion

1mo

Save

Mark Applied

Hide

1mo

CNO Software Engineer

Annapolis Junction, Maryland, United States

$250k-$300k/yr OnsiteFull Time

SIXGEN: Provides advanced cybersecurity services and products for national security.

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

Save

Mark Applied

Hide

Software Engineer - Junior Level

Annapolis Junction, Maryland, United States

$98k-$123k/yr HybridFull Time

Boeing Intelligence & AnalyticsNYSE: BA: Provides intelligence analytics and cyber solutions for national security.

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

1mo

Save

Mark Applied

Hide

1mo

Network Software Developer, Journeyman NGTS

Patuxent River, Maryland, United States

OnsiteFull Time

BGI: A government contractor providing software solutions and services for defense and national security clients.

3+ YOEBS in science/engineering; 3+ years C++; DoD Secret clearance; experience with network programming and software development.

C++, Python, HTML, Sockets, DDS, HLA, DIS

1mo

Save

Mark Applied

Hide

1mo

Software Engineer, Level 1 (AE26031323SW1)

Annapolis Junction, Maryland, United States

$145k-$155k/yr HybridFull Time

Advantage Engineering & IT Solutions: Provides technical engineering and IT services for government agencies.

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

Save

Mark Applied

Hide

Modeling, Simulation, and Physics Software Engineer

Annapolis Junction, Maryland, United States

$69k-$158k/yr OnsiteFull Time

Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.

Lead full-stack developer with Python/MATLAB/NumPy/SciPy/Julia/Octave experience; modeling and simulation; security clearance required; Bachelor’s degree; strong software fundamentals; capable of team leadership.

Python, MATLAB, NumPy, SciPy, Julia, Octave, Ansys, PyAnsys

2mo

Save

Mark Applied

Hide

2mo

Software Engineer II

Annapolis Junction, Maryland, United States

$76k-$144k/yr OnsiteFull Time

RTXNYSE: RTX: Designs and manufactures aircraft engines and defense systems.

2+ YOETypically requires STEM degree and 2+ years of software development experience; TS/SCI clearance or ability to obtain; strong C++ in Linux; scripting and XML; UI and web skills preferred.

C++, Linux, Python, Bash, Perl, JavaScript, XML, Qt, Angular, TensorFlow, git

1mo

Save

Mark Applied

Hide

1mo

Automated Test Engineer

Santa Clara or Reston or Lexington Park

$66k-$106k/yr HybridFull Time

Peraton: National security and mission-critical government technology services provider.

Automated testing using Python and Selenium; develop and execute tests; Agile environment; travel to customer sites.

Python, Selenium, Azure DevOps, Visual Studio, Office

2mo

Save

Mark Applied

Hide

2mo

Senior Software Engineer - Vehicle Modeling

Sunnyvale or Mountain View or Milford

$129k-$198k/yr HybridFull Time

General MotorsNYSE: GM: Manufacturer of passenger cars, trucks, and automotive components.

3+ YOEBachelor's degree in Mechanical Engineering, Applied Physics, Aerospace Engineering, Computer Science, or related field; 3+ years in vehicle modeling; expertise in vehicle system modeling; strong Python and C/C++; Matlab/Simulink and data analysis experience.

Python, C/C++, Matlab/Simulink, System ID, data analysis

2mo

Save

Mark Applied

Hide

2mo

Full Stack Software Engineer, Senior

Hanover or Annapolis Junction

$87k-$198k/yr HybridFull Time

Booz AllenNYSE: BAH: Provides management and technology consulting services to government and commercial clients.

5+ YOESenior full stack engineer with 5+ years' experience, Python/React/FastAPI, Docker, Agile, TS/SCI clearable, and degree or equivalent experience.

Python, React, FastAPI, Docker, APIs, UNIX/Linux

1mo

Save

Mark Applied

Hide

1mo

Sr. Principal Software Engineer (AHT)

Manhattan Beach or Hollywood or Huntsville

$136k-$213k/yr OnsiteFull Time

Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.

8+ YOEBS/MS in STEM with 8/5 years experience; active DoD SECRET clearance; Agile/CI/CD; C#/Java/.NET; OO design; SQL; scripting (yaml, Python, PowerShell, Curl); Git/GitHub; Jira/Confluence.

C#, Java, DotNet, SQL, yaml, Python, PowerShell, Curl, Git, GitHub, Jira, Confluence, Docker, Kubernetes, AWS, Azure, REST, UML, DBMS

Save

Mark Applied

Hide

Senior Software Developer

Annapolis Junction, Maryland, United States

$203k-$249k/yr OnsiteFull Time

Intelliforce: Provides engineering and technical solutions for the intelligence community.

12+ YOETop Secret clearance with Full Scope Polygraph; US citizenship; 12 years of relevant experience with a technical Bachelor's; additional 4 years experience substitutable for degree; on-site work

Python, JavaScript, Linux, Git, Docker, Kubernetes

Save

Mark Applied

Hide

Software Engineer 3 - III

Annapolis Junction, Maryland, United States

RemoteFull Time

InterImage: Provides IT modernization and cybersecurity services to federal government agencies.

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

Save

Mark Applied

Hide

Software Engineer - Early Career

Camden or Moorestown

OnsiteFull Time

Lockheed MartinNYSE: LMT: Designs and builds aerospace and defense technology systems.

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

Save

Mark Applied

Hide

Test Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Set of X: Provides specialized engineering services for U.S. national security missions.

5+ YOE5+ years as a test engineer; strong Python; regex; test automation; lab/test bed setup; ability to manage discrepancy reports; automate testing across telephony/network hardware.

Python, PyTest, Jenkins, SPLUNK, Linux, Regular Expressions

2mo

Save

Mark Applied

Hide

2mo

DevOps Engineer (RC-3)

Annapolis Junction, Maryland, United States

$200k-$230k/yr OnsiteFull Time

Legato: Provides IT engineering services to the national intelligence community.

10+ YOETS/SCI w/ Poly, 10+ years in Agile AWS/cloud, VMware, Kubernetes, Docker, Java/Python, Git; bachelor’s degree in a related field.

VMware, Kubernetes, RKE2, Kafka, Docker, Java, NiFi, PostgreSQL, Red Hat Enterprise Linux, Git, Python, Ruby, Perl, C, C++, AWS, Confluence, Jira

1mo

Save

Mark Applied

Hide

1mo

Senior Front-End Software Engineer

Fort Meade, Maryland, United States

$132k-$290k/yr OnsiteFull Time

CACINYSE: CACI: Provides information technology and professional services to government clients.

12+ YOETS/SCI with Polygraph; BS/MS in CS or related; 12+ years with BS or 10+ with MS; 4+ years SWE substitution; expertise in 3+ areas; 10+ years in 4 areas.

Python, Java, C++, Svelte, TypeScript, MongoDB, Unix/Linux, XML, PHP, Perl

Save

Mark Applied

Hide

00584-Software Engineer 3

Annapolis Junction, Maryland, United States

$175k-$235k/yr OnsiteFull Time

Momentum Engineering: Provides engineering and technical services for national security missions.

20+ YOETop Secret/SCI clearance with NSA Full Scope Poly, 20+ years SWE experience, BS in CS or related, 6+ years recent development; salary commensurate with experience.

Java, Python, NiFi, DataXplorer, GMAE, XML, CSV, JSON, Pig, MapReduce, Spark, Hadoop, Scala

1mo

Save

Mark Applied

Hide

1mo

Cloud Software Engineer III (TS/SCI w/ Polygraph)

Annapolis Junction, Maryland, United States

OnsiteFull Time

COMSO: Provides IT and software solutions to federal government agencies.

12+ YOESenior cloud software engineer with 12 years exp in Big-Data/cloud, TS/SCI w/ Poly required; BS in CS or related field; multiple cloud/IR qualifications.

Java, Hadoop, Cloudera, MapReduce, YARN, HDFS, HBase, Zookeeper, MongoDB, REST, Maven, Unix/Linux, Python, CFEngine, Bash, Ruby, Eclipse, JVM, VMware, J2EE, Selenium

Save

Mark Applied

Hide

Operational Technology Data Engineer (Salisbury, MD, US, 21804)

Salisbury, Maryland, United States

$89k-$133k/yr OnsiteFull Time

Perdue Farms: Producer of poultry, meat, and agricultural products.

4+ YOE4+ years OT data engineering; experience with OT systems, data historians; SQL, Python; cloud ingestion; familiarity with industrial protocols.

SQL, Python, REST APIs, Azure, AWS, Databricks, Snowflake, AVEVA PI, FT Historian, Canary, Ignition, OPC UA, EtherNet/IP, Modbus, Power BI

Save

Mark Applied

Hide

General Engineer (Hybrid)

Plymouth Meeting, Pennsylvania, United States

$92k-$138k/yr HybridFull Time

PECO: Provides electricity and natural gas services in southeastern Pennsylvania.

4+ YOEBachelor of Science in Engineering or PE/EIT, 4-7 years experience, strong analytical and design skills.

CYMDIST, PSS/E, Python, PLS-CADD, Pole Foreman, Power BI

2mo

Save

Mark Applied

Hide

2mo

Digital Engineer (Wilmington, NC, US, 28405)

Wilmington, North Carolina, United States

$141k/yr OnsiteFull Time

CorningNYSE: GLW: Develops and manufactures specialty glass and ceramic materials.

1+ YOEBS/MS in Computer Science or IT-related field; 1-3 years manufacturing automation/optimization experience; travel about 10%.

Python, C#, HTML, JavaScript, .NET, Flask, Microsoft IIS, Visual Studio, Git, SSRS, SQL, Power BI

2mo

Save

Mark Applied

Hide

2mo

Eng Sr Prin II - Test

Annapolis Junction, Maryland, United States

$150k-$254k/yr OnsiteFull Time

BAE SystemsLondon Stock Exchange: BA: Manufactures advanced defense, aerospace, and security technology solutions.

10+ YOEJava expertise; broad experience with Java/JEE, Python, C/C++, SQL, SOAP/WSDL; UI development; cryptography knowledge; Windows/Linux; web services; strong software principles; effective communication; independent thinker.

Java, Python, C/C++, SQL, SOAP/WSDL, PERL, PowerShell, Eclipse, Postgres, Oracle, Jenkins, JSON, HTML, XML, XSLT

Save

Mark Applied

Hide

Network Day 2 Operations Engineer

Maryland City, Maryland, United States

HybridFull Time

Accellor: Digital transformation consultancy specializing in cloud and CRM solutions.

5+ YOE5-10 years in enterprise network operations; routing/switching, firewall management on Cisco/Palo Alto; SSL/TLS inspection; ITSM tools; scripting; network automation; on-call flexibility.

Cisco Routers, Cisco Switches, Cisco ASA, Palo Alto PAN-OS, Cisco VPN AnyConnect, Zscaler ZIA/ZPA, HPE Aruba, Imperva WAF, F5 BIG-IP, Infoblox DDI, Git, Python, Ansible, Terraform, NETCONF/YANG, NAPALM, Netmiko

1mo

Save

Mark Applied

Hide

1mo

Avionics Test and Launch Engineer II / Senior

Wallops Island, Virginia, United States

OnsiteFull Time

Rocket LabNASDAQ: RKLB: Rocket Lab provides orbital launch services and manufactures spacecraft.

2+ YOEBachelor in engineering; 2+ years (Level II) or 5+ years (Senior) in engineering design, test, or operations focusing on electrical/software systems; avionics experience; programming; networking knowledge; familiarity with ground/space systems.

Java, Python, HTML, XML, TCP/IP, UDP, Multicast