41 senior python developer jobs at 26 companies in Harrington, DE

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
1mo
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Senior Systems Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Entegra Systems
Entegra Systems: Provides engineering and intelligence analysis for government missions.
12+ YOEActive TS/SCI with Poly; 12+ years in system engineering; 2+ years in cleared environment; Linux/Cloud; MySQL; scripting in Shell/Perl/Python; DNS/LDAP/Puppet/VMware; security scanning; Atlassian; Nagios; large-scale IT environments.
Linux, Red Hat, CentOS, Fedora, Solaris, MySQL, DNS, LDAP, Puppet, VMware vCenter, Nagios, Atlassian, Shell, Python, Perl, PKI, Kickstart, Hadoop, HDFS
1mo
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Senior Systems Engineer
Annapolis Junction, Maryland, United States
$230k-$262k/yr OnsiteFull Time
Red Arch Solutions
Red Arch Solutions: Provides IT engineering solutions for the intelligence community.
20+ YOEActive TS/SCI with polygraph; 20+ years SE experience; BS in a related field; Linux CLI; scripting (Bash/Python); Linux admin in large environments; Delinea product experience; IAM and secrets; IaC (Ansible/SaltStack); containerization knowledge.
Linux, Bash, Python, Ansible, SaltStack, Delinea, Docker, Podman, LDAP, Active Directory, FreeIPA, Git
3w
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Senior Software Engineer - ARINCDirect Mobile (Onsite)
Annapolis, Maryland, United States
$96k-$182k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOE5+ years professional iOS/mobile development with Swift and Objective-C; proficiency with Xcode, Core Data, RESTful APIs; strong troubleshooting and collaboration skills; Python experience recommended.
Swift, Objective-C, Python, Xcode, Core Data, Django, Atlassian Suite, Gitlab, RESTful APIs
2mo
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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
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Senior DevOps Engineer
Annapolis Junction, Maryland, United States
$200k-$280k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
12+ YOEActive TS/SCI with Polygraph clearance; US citizenship; 12+ years with BS, 10+ with MS, 14+ with Associates, or 16+ with HS; Security+CE; strong communication; able to work independently and in SCIF.
Terraform, Ansible, Python, Kubernetes, Docker, GitLab, Argo CD, AWS, Nifi
4d
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Senior Software Engineer Applied AI
Annapolis or United States
RemoteFull Time
AMC Health
AMC Health: Provides remote patient monitoring and virtual care technology.
7+ YOE7+ years building production backend systems, strong Python skills, cloud distributed systems (AWS), hands-on LLM/generative AI experience, ML lifecycle proficiency, and disciplined data handling in regulated environments.
Python, AWS, LLMs
3mo
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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
4w
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Centegix - Senior Test Engineer
Annapolis, Maryland, United States
OnsiteFull Time
Centegix
Centegix: Provides wearable emergency alert systems for workplace safety.
6+ YOE6+ years test engineering in embedded systems; firmware verification; PCB design in Altium; Python test automation; Git; experience with lab diagnostic equipment, HIL, CI workflows, and soldering/assembly.
Python, AWS IoT, AWS CloudWatch, AWS Lambda, Altium, Git, Hardware-in-the-Loop (HIL), Continuous Integration (CI), CI/CD, oscilloscopes, logic analyzers, spectrum analyzers, function generators, 3D printers, CNC
3w
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Principal or Senior Principal Embedded Software Engineer
Annapolis, Maryland, United States
$109k-$204k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
5+ YOEB.S. in CS/EE/CE or equivalent with 5+ yrs (Principal) or 8+ yrs (Senior Principal) embedded real-time software experience; proficiency in C++, Python, Linux/Windows; technical lead and microelectronics programming experience; US citizen able to obtain TS/SCI with poly.
C++, Python, Linux, Windows, Jira, Confluence, Bitbucket, JavaScript, Qt, CUDA, ArrayFire, Docker, k8s
3w
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Principal or Senior Principal Embedded Software Engineer
Annapolis, Maryland, United States
$109k-$204k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEB.S. in CS/EE/CE or equivalent STEM with 5+ yrs (Principal) or 8+ yrs (Senior) embedded real-time software experience; proficiency in C++ and Python; Linux/Windows experience; microelectronics programming; technical lead experience; US citizen able to obtain/maintain TS/SCI with poly.
C++, Python, Linux, Windows, Jira, Confluence, Bitbucket, JavaScript, Qt, CUDA, ArrayFire, Docker, Kubernetes
1mo
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Principal Software Engineer
Annapolis Junction, Maryland, United States
$215k-$250k/yr OnsiteFull Time
Envision Innovative Solutions
Envision Innovative Solutions: Provides technical engineering and mission support to government agencies.
12+ YOETwelve years SWE experience; BS in CS; frontend React; Node.js/Rust; Python; Shell; Kubernetes; microservices; multi-site apps; cloud migration.
JavaScript, TypeScript, React, Node.js, Rust, Python, Shell, Kubernetes, Microservices, Cloud
2mo
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Software Engineer 2
Annapolis Junction, Maryland, United States
$152k-$206k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOE5+ years related experience; TS/SCI with Polygraph; Bachelor’s degree; strong Linux Bash/Python, Docker, Kubernetes, MySQL, REST, CI/CD, Git.
Bash, Python, Docker, Kubernetes, MySQL, GitLab CI, REST, Linux CLI
1mo
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Radio Services Software Engineer
Aberdeen Proving Ground, Maryland, United States
$150k-$174k/yr OnsiteFull Time
Sigmatech
Sigmatech: Provides specialized engineering, technical, and programmatic support for government agencies.
10+ YOEBachelor's in CS/SE (or equivalent experience), 10+ years software engineering with 3+ years on DoD communications, proficiency in C++, Java, or Python, secure coding and networking protocols knowledge, active DoD Secret clearance.
C++, Java, Python, VENOM, Agile, DevSecOps
2mo
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Software/Data Engineer
Laurel, Maryland, United States
$176k-$282k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
19+ YOEBachelor's degree in Engineering, Computer Science, Mathematics, or related field with extensive software engineering experience; cloud, Linux, Python; active TS/SCI with poly; ability to work at a customer site.
OpenStack, Linux, Python, PowerShell, Cloud Security
4w
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Senior Digital Signal Processing Engineer
Aberdeen Proving Ground, Maryland, United States
$108k-$228k/yr HybridFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOEU.S. citizen with TS/SCI+Poly, Bachelor’s in engineering/physics/math, 8+ years DSP/RF experience, strong C/C++, Python, MATLAB/Simulink skills, experience with RF measurement, EIRP estimation, and real-time DSP systems.
C/C++, Python, MATLAB/Simulink, Linux, Git, CI/CD, Docker, Ansible, Cobbler, Geographic Information System (GIS)
4w
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Senior Digital Signal Processing Engineer
Aberdeen Proving Ground, Maryland, United States
$108k-$228k/yr HybridFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
8+ YOEU.S. citizen with TS/SCI CI poly, Bachelor's in EE/CE/Physics/Math, 8+ years in DSP/RF/wireless, experience with EIRP and RF measurement, strong C/C++, Python, MATLAB/Simulink skills, up to 10% travel.
C/C++, Python, MATLAB/Simulink, Linux, Git, CI/CD, Docker, Ansible, Cobbler, Geographic Information System (GIS)
1mo
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Principal Software Engineer, Field Engineering
Aberdeen Proving Ground, Maryland, United States
$160k-$220k/yr OnsiteFull Time
Raft
Raft: Builds AI and data platforms for U.S. national defense.
5+ YOE5+ years hands-on software engineering; active Secret clearance; backend Go/Java/Rust; DevSecOps; Kubernetes; Bash/Python; Army-domain knowledge; customer-facing; Security+ readiness; willing to relocate to APG.
Go, Java, Rust, Kubernetes, Helm, CI/CD, Infrastructure as Code, Bash, Python, RMF
2mo
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Sr Software Developer
Annapolis Junction or Columbia
$174k-$220k/yr OnsiteFull Time
ELEVI Associates
ELEVI Associates: Provides cyber security and IT engineering for federal agencies.
20+ YOEActive security clearance with FS Poly; 20+ years as a software engineer in similar scope, or 4+ years of experience
Java, PostgreSQL, Database design, RESTful API, Docker, Power BI, Python, Power Query M, MariaDB, Elasticsearch
2mo
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Cloud Software Engineer (TS/SCI with Poly required, Hybrid Remote)
Columbia, Maryland, United States
$180k-$250k/yr HybridFull Time
Red Alpha
Red Alpha: Provides software engineering and data science for defense missions.
5+ YOE5+ years of software/Cloud engineering; TS/SCI with Poly; experience in AWS/Azure/GCP; IaC (CDK or Terraform); Python, Typescript; containerization (Docker, Kubernetes); network and security skills; strong communication.
AWS, Azure, Google Cloud, Oracle, Terraform, CDK, Python, Typescript, Lambda, EC2, S3, RDS, DynamoDB, IAM, VPC, Networking, OpenSearch, CloudWatch, Docker, Kubernetes, EKS, ECS, CI/CD
3mo
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Software Engineer 3 - III
Annapolis Junction, Maryland, United States
RemoteFull Time
InterImage
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

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