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Senior Python Developer Jobs in Halfway, MD, US

210+ senior python developer jobs from 83 companies hiring in Halfway, MD, US.

213 jobs- Halfway • 50 miles
2w
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Python Software Developer
Ashburn, Virginia, United States
HybridFull Time
DXC Technology
DXC TechnologyNYSE: DXC: Global provider of IT services and business technology solutions.
4+ YOE4+ years software development; Python proficiency; strong SQL; GraphQL APIs; REST; Git/Linux/Docker; web security; cloud; microservices; bachelor's degree or equivalent; authorized to work in the United States
Python, GraphQL, REST, SQL, Git, Linux, Docker, OpenAPI
1w
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Senior Software Developer
Rockville or Tysons Corner
$113k-$188k/yr HybridFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
6+ YOEMinimum 6 years full-stack development (Python and React); 3+ years databases; Docker; AWS; REST/JSON; CI/CD; mentoring.
React, TypeScript/JavaScript, Python, Docker, AWS, GitHub Actions
2w
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Senior Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
Karsun Solutions
Karsun Solutions: Provider of IT modernization and software development for government agencies.
10+ YOESenior full stack developer with 10+ years of software development, AI/ML exposure, and ability to lead modernization efforts.
Java, Python, Node.js, JSP, Tomcat, jQuery, SQL, ETL, APIs, CI/CD, Cloud
1mo
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Web Application Developer Senior
Winchester, Virginia, United States
OnsiteFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
2+ YOEBachelor's degree; TS/SCI clearance; 2+ years in AWS/C#/Java/Python; web app development.
AWS, C#, Java, Python
1d
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Software Developer, Senior
Herndon, Virginia, United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
6+ YOEMinimum 6 years software development experience; Bachelor’s degree in CS/Info Security or related field (or equivalent); Proficiency with .NET, Web, Python, PowerShell; Cloud experience (AWS/Azure); Experience with GitHub/Jira/Jenkins/Confluence; knowledge of STS/DataHound; SDLC familiarity; strong documentation skills.
.NET, C#, WPF/XAML, C++, ASP.NET MVC Web API, HTML/CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service (STS), DataHound, Microsoft PowerBI
6d
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Senior Application Engineer
Vienna or Winchester or Pensacola
$115k-$180k/yr HybridFull Time
Navy Federal Credit Union
Navy Federal Credit Union: Offers banking and financial services to the military community.
5+ YOEBachelor’s degree in Computer Science, Information Systems, or related field; 5–7 years in application/software development; Azure cloud experience; proficient in SQL, Python, JavaScript; strong communication and problem-solving.
SQL, Python, JavaScript, HTML/CSS, Azure, Azure Compute, Azure Storage, Azure Data & Analytics, Git
2mo
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Senior Software Engineer/ Elastic Engineer
Dulles, Virginia, United States
OnsiteFull Time
Node.Digital
Node.Digital: Provides digital automation and AI solutions for government and commercial enterprises.
6+ YOEU.S. citizenship; active Secret clearance with ability to obtain TS/SCI; DHS suitability; 6+ years software development; 2+ years Elastic Cloud on Kubernetes admin; 2+ years Elasticsearch DSL; 5+ years Kubernetes; ELK stack knowledge; scripting (Python, JavaScript, Bash).
Elasticsearch, Kibana, Logstash, Beats, Elastic Cloud on Kubernetes, Kubernetes, Python, Groovy, Bash, ELK
4w
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Senior GenAI Backend Platform Developer
Rockville or Jersey City or Denver or San Francisco or New York
HybridFull Time
FINRA
FINRA: Regulates brokerage firms and exchange markets in the United States.
5+ YOESenior GenAI backend developer with 5+ years of experience in cloud-native systems, AWS, CI/CD, and secure software practices.
AWS Bedrock, AWS S3, AWS Fargate, AWS Lambda, AWS Step Functions, Jenkins, Git, Docker, Python, FastAPI
1mo
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Senior Software Engineer, Platform
Chantilly or Herndon or Washington
HybridFull Time
Privateer
Privateer: Provides satellite data sharing and geospatial intelligence analytics platforms.
Strong Python, microservices, gRPC, PostgreSQL/DuckDB, Docker/Kubernetes, message brokers, and AWS experience.
Python, gRPC, Protocol Buffers, PostgreSQL, DuckDB, RabbitMQ, Docker, Kubernetes, AWS, HTTP API, Event-driven architectures
2w
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Applications Developer (Full Stack Developer - Senior)
Herndon, Virginia, United States
OnsiteFull Time
Ardent Principles
Ardent Principles: Provides specialized technology and program management services to government agencies.
4+ YOESenior-level developer with active TS/SCI with Full Scope Polygraph; 4+ years web app experience; strong Python/Java/JS/C# OO skills; cloud and Linux experience;Bachelor's degree or 11 years experience without degree.
Angular, React, JavaScript, Python, Java, C#, Linux, AWS, Azure, Oracle Cloud, Docker, Podman, Jira, Confluence, GitHub
1mo
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Senior Software Engineer (Big Data)
Herndon, Virginia, United States
OnsiteFull Time
KDA Consulting
KDA Consulting: Provides IT engineering and cloud services for intelligence missions.
TS/SCI clearance with polygraph preferred; BS in CS/Engineering or related field; strong full stack development; big data tech (Hadoop, Spark, Kafka); Java/Python/C#; APIs and microservices; strong problem-solving; able to work independently (IC)
Java, Python, C#, Hadoop, Apache Spark, Kafka, APIs, Microservices, REST
6d
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Senior Software Engineer - APIs
Ashburn, Virginia, United States
$120k-$145k/yr RemoteFull Time
Unacast
Unacast: Provides human mobility analytics and global location intelligence solutions.
5+ YOE5+ years Java 8+ with Spring; AWS; SQL; Snowflake; Scala/Python; web services; GA/DG experience; English fluency.
Java, Spring Framework, AWS, SQL, Snowflake, Scala, Python, JSON, GeoJSON, Git, Unit testing, Docker, Kubernetes
1mo
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Senior Software Engineer – Biomedical Informatics
Rockville, Maryland, United States
$140k-$160k/yr OnsiteFull Time
Axle Informatics
Axle Informatics: Provides bioscience and IT solutions for biomedical research.
5+ YOE5+ years software development; Python; ML models; AWS; PostgreSQL; Docker; Linux; Git; CI/CD; independent cross-team delivery.
Python, AWS, Docker, PostgreSQL, Git, Linux, CI/CD, OMOP, vector databases
1w
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Senior Engineer-5
Bethesda, Maryland, United States
$105k-$215k/yr HybridFull Time
GEICO
GEICO: Provides vehicle and property insurance services to consumers.
4+ YOE4+ years software development; strong experience with C#, Java, TypeScript, JavaScript, Python, or Golang; microservices architecture; cloud (AWS, GCP, Azure); DevOps; security; CI/CD; containers (Docker, Kubernetes).
Python, C#, TypeScript, JavaScript, Java, Golang, Docker, Kubernetes, Terraform, Azure, AWS, GCP
6d
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Senior QA Automation Engineer
Bethesda or Rockville
$120k-$130k/yr HybridFull Time
A-TEK
A-TEK: Provides digital transformation and scientific solutions to federal agencies.
5+ YOE5+ years QA automation, Playwright, React/.NET, PowerApps, Python, GitHub/Jira/AWS, public trust clearance.
Playwright, React, .NET, PowerApps, Python, GitHub, Jira, AWS, Entra (Azure AD)
1mo
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Senior Software Engineer
Gaithersburg, Maryland, United States
OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
8+ YOEBachelor’s or Master’s degree in CS/Engineering with 6+ years (Master’s) or 8+ years (Bachelor’s); TS/SCI clearance; strong OO programming, REST, SQL, Linux; AWS, Agile.
Java, Python, REST, SQL, Linux, Docker, OpenShift, Spring Boot, PostgreSQL, Tomcat, Maven, AWS, GitLab CI/CD, JavaScript, Front-end frameworks
3w
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Senior Software Engineer
Clarksburg, Maryland, United States
$120k-$140k/yr OnsiteFull Time
Forterra
Forterra: Develops autonomous ground vehicle systems and software for defense.
3+ YOE3+ years software engineering; Rust experience; TypeScript/React; Linux; Docker; CI/CD; scripting.
Rust, TypeScript, React, Linux, Docker, CI/CD, Bash, Python, Systemd, SSH, TCP/IP
3w
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Senior Application Developer (Java/Angular)
Ashburn, Virginia, United States
HybridFull Time
Dev Technology Group
Dev Technology Group: Provides information technology services to federal government agencies.
7+ YOEBachelor’s degree and 7+ years in Java applications with Spring, Agile, Jira; Oracle/PostgreSQL; unit tests; strong communication; hybrid Ashburn onsite.
Java, Angular, Spring, Spring Boot, AWS, Jira, Git, Bamboo, Jenkins, SonarQube, Docker, Kubernetes, Hibernate, MyBatis, JMS, Python, Kafka, Linux
1mo
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Senior Software Automation Testing Engineer
Ashburn, Virginia, United States
$85k-$100k/yr HybridFull Time
Vastly AI
Vastly AI: Provider of custom AI, machine learning, and IT solutions.
5+ YOE5+ years in software testing; strong Python 3.8+; web frameworks (FastAPI, Django, Flask); REST API testing; AWS; automation; SQL; Git/Jenkins/Harness; Locust.
Python, FastAPI, Django, Flask, pytest, unittest, Locust, Gitlab, Harness, Jenkins, Oracle, Postgres, SQL, AWS
4d
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Senior Software Engineer - Full-Stack
Carlsbad or Germantown or Remote (excluding ND, VT, or RI)
$141k-$222k/yr HybridFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
5+ YOE5+ years hands-on web app development; React/Spring Boot/Python/Go; cloud (AWS/Azure); microservices; CS fundamentals; travel up to 10%; US citizenship and ability to obtain Secret clearance.
React, Spring Boot, Python, Go, AWS, Azure, Microservices, Redis, Elasticsearch, InfluxDB, Docker, Kubernetes, GitHub Actions, Ansible, ArgoCD
1mo
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Senior Data Engineer
Chantilly or Herndon
OnsiteFull Time
VTG
VTG: Provides force modernization and digital transformation for defense agencies.
Active TS/SCI with Poly required; BS in CS/Software Engineering or related field; strong Python, SQL, AWS; ETL, data pipelines; Airflow, Hop; data normalization; independent and collaborative work.
Python, SQL, Apache Airflow, Apache Hop, AWS, Kubernetes
1mo
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Senior Engineer
Herndon, Virginia, United States
$106k-$243k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Providing global edge-to-cloud infrastructure and IT solutions for businesses.
8+ YOE8+ years networking experience; B.E. in Electronics or Computer Science; strong routing, IP networks, and customer-facing communication; Juniper knowledge.
BGP, OSPF, ISIS, RIP, MPLS, VPLS, EVPN, VxLAN, LDP, RSVP, Segment Routing, Perl, Unix, Expect, Python, Ethernet, 802.1Q, ARP
1mo
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Senior Engineer
Herndon, Virginia, United States
$106k-$243k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides edge-to-cloud IT infrastructure and platform services.
8+ YOE8+ years networking experience; troubleshooting large IP networks; strong customer handling and communication.
Networking protocols, MPLS, EVPN, VxLAN, MPLS Traffic Engineering, LDP, RSVP, Segment Routing, PIM, Perl, Python, Unix, Scripting
1w
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Senior Systems Engineer
Herndon, Virginia, United States
OnsiteFull Time
Bridge Core
Bridge Core: Provides technical services and cybersecurity solutions to government agencies.
11+ YOEBachelor's in a technical field; 11+ years; Tanium; Python/PowerShell/Bash; SIEM/SOAR; Linux/Windows admin; hyper-visors; Windows AD/GPO; Windows Server 2019/2022; AWS EC2; REST/SOAP; Splunk/Rapid7/AWS; Zero Trust; cyber frameworks; documentation.
Tanium, Python, PowerShell, Bash, SIEM, SOAR, Linux, Windows, Active Directory, Group Policy, Windows Server, AWS, EC2, REST, SOAP, Splunk, Rapid7, Zero Trust, MITRE, OWASP, CWE/CVEs, Documentation tools (tickets, SOPs)
1d
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Software Developer, Senior
Herndon, Virginia, United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.
6+ YOE6+ years software development; BS in CS or related field; strong .NET, C#, WPF/XAML, C++, ASP.NET MVC, HTML/CSS, Python, PowerShell; Windows apps/services; IIS; AWS/Azure; GitHub/Jira/Jenkins/Confluence; STS/DataHound; SDLC; agile methodologies.
.NET, C#, WPF/XAML, C++, ASP.NET MVC Web API, HTML, CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service, DataHound, Microsoft PowerBI
2w
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Senior Software Engineer - Full-Stack
Carlsbad or Germantown or United States
$136k-$253k/yr RemoteFull Time
Viasat
ViasatNASDAQ: VSAT: Provides global satellite broadband and secure networking communication services.
5+ YOE5+ years web app development with React/Spring Boot/Python/Go; cloud experience (AWS/Azure); microservices; BS in CS/Computer Engineering or related; US citizenship; eligible for Secret Clearance; up to 10% travel.
React, Spring Boot, Python, Go, AWS, Azure, Cloud, Microservices, Redis, Elasticsearch, InfluxDB, Next.js, TanStack, Docker, Kubernetes, GitHub Actions, Ansible, ArgoCD
1w
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Senior Data Engineer (Elastic)
Herndon or Westminster
$145k-$215k/yr OnsiteFull Time
Vantor
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
14+ YOESenior data engineer with Elastic, TS/SCI with CI poly, 14+ years experience, US citizen, on-site in Herndon VA or Westminster CO, technical degree or equivalent.
Elastic Stack, Elasticsearch, Logstash, Kibana, Beats, Python, Bash, Java, R
1mo
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Senior Data Engineer
Chantilly or Herndon
OnsiteFull Time
Dark Wolf Solutions
Dark Wolf Solutions: Provides cybersecurity and software development services to defense agencies.
15+ YOE15+ years software development; full lifecycle agile; data products with Avro/Parquet; Python; AWS; REST APIs.
Python, AWS, REST APIs, Apache Avro, Parquet, Kubernetes, Airflow, Artificial Intelligence (AI), Rust, Apache Spark, Presto/Trino, Iceberg
2w
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Senior A/AI Machine Learning Engineer
Herndon or King of Prussia or Springfield
OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Bachelor's degree in a STEM field; advanced AI/ML/Deep Learning/Computer Vision; experience with modern software development; TS clearance required.
Python, Java, C++, C#, MATLAB, TensorFlow, PyTorch, Keras, Scikit-learn, AWS
2w
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Senior Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
Karsun Solutions
Karsun Solutions: Delivers enterprise IT modernization solutions to federal government agencies.
10+ YOE10+ years software development; AI/ML exposure; Bachelor's in CS/IT/Engineering; strong troubleshooting, architecture, DevOps, security, and communication skills.
Java, Python, JSP, Node.js, jQuery, Tomcat, SQL, ETL, AI/ML, Git, CI/CD, DevOps, Cloud
2w
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Senior Data Engineer - Knowledge Graphs
Annapolis Junction or Herndon or Reston
$135k-$216k/yr HybridFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
12+ YOEBS/MS/PhD with extensive data engineering and knowledge graph experience; strong Python/SQL; graph/semantic tooling; RDF/graph databases; experience with NLP or semantic parsing; US citizenship.
Python, SQL, JavaScript, TypeScript, Neo4j, Neptune, GraphDB, RDF, SPARQL
1mo
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Senior Cloud Engineer TS/SCI (or eligible)
Sterling, Virginia, United States
OnsiteFull Time
Vibrint
Vibrint: Provides mission-critical systems and data analysis for national security.
7+ YOETS/SCI eligible; 7+ years cloud/DevOps; Python and Bash; Terraform and CDK; AWS/Azure; Git/Jenkins; Linux.
AWS, Python, Flask, Terraform, AWS CDK, Git, Jenkins, Bash, Azure, Linux, Docker, Nginx, Apache, PostgreSQL, Elasticsearch, React
1w
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Application Software Developer (Full Stack Developer)
Herndon, Virginia, United States
RemoteFull Time
VivSoft Technologies
VivSoft Technologies: Delivers cloud, DevSecOps, and AI solutions to federal agencies
10+ YOEExperienced full stack developer with 10+ years in software development; 5+ years in DevSecOps and cloud-hosted apps; strong Java, Python, AWS, React/Angular; CI/CD with Jenkins, GitHub, Artifactory; Jira/Confluence; API, databases (MySQL, PostgreSQL).
Java, Python, AWS, React, Angular, Jenkins, GitHub, Artifactory, Jira, Confluence, MySQL, PostgreSQL, JBoss, Spark, Vault
2mo
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Senior DevOps Developer
Herndon, Virginia, United States
$187k-$229k/yr OnsiteFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & Analytics: Provides intelligence and analytics solutions for national security.
14+ YOEActive TS/SCI with polygraph; US citizenship; automating Windows/Linux servers, networks, backups, security; AD/DNS/DHCP; cloud/virtualization; scripting (Python/PowerShell/Bash); CI tools experience.
Windows Server, Linux Server, Active Directory, DNS, DHCP, PowerShell, Python, Bash, Terraform, CloudFormation, Ansible, Puppet, Jenkins, VMware, Hyper-V, Nutanix AHV, AWS, Azure, GCP
2w
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NLM Software Developer
Rockville, Maryland, United States
$118k-$136k/yr OnsiteFull Time
Ripple Effect
Ripple Effect: Provides professional consulting and scientific support to federal agencies
6+ YOESix-plus years in software development; full SDLC; proficiency in C++, Python, Java, JavaScript, R, Bash; databases MySQL/PostgreSQL/MongoDB/ElasticSearch; tools like Jupyter, GitHub, GitLab, CI/CD; Agile/Scrum; strong communication and documentation.
C++, Python, Java, JavaScript, R, Bash, MySQL, PostgreSQL, MongoDB, ElasticSearch, Jupyter Notebooks, GitHub, GitLab, CI/CD
5d
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Software Developer - TS/SCI with Polygraph
Herndon, Virginia, United States
$136k-$184k/yr HybridFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOE5+ years of software development experience; TS/SCI with Polygraph clearance; US citizenship; experience with Python, REST/gRPC, microservices, cloud services, and containerized deployments.
Python, Kubernetes, Docker, AWS, GCP, Azure, PostgreSQL, OpenSearch, Elasticsearch, MongoDB, Kafka, RabbitMQ, SQS, REST, gRPC
1w
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Software Developer SME (TS/SCI with Poly Required)
Dulles, Virginia, United States
$164k-$275k/yr OnsiteFull Time
GCI
GCI: Engineering and analytics solutions for national security missions.
10+ YOEFull stack development with Python/PostgreSQL/AWS; frontend HTML/CSS/JavaScript; UI/UX practices; Git; 10+ years of experience.
Python, PostgreSQL, AWS, SQS, HTML, CSS, JavaScript, Git, Docker, Kubernetes
1d
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Software Engineer / Principal Software Engineering
Dulles, Virginia, United States
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEBachelor's in STEM with 5+ years, or Master's with 3+ years, or PhD with minimal experience; strong software development in Python/C++, plus TS clearance.
Python, C++, Bash, PostgreSQL, Ansible
4w
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Lead Full Stack Developer
Arlington or Herndon
$171k-$257k/yr OnsiteFull Time
Two Six Technologies
Two Six Technologies: Develops cybersecurity and data systems for national security missions.
7+ YOELead full stack developer with 7+ years; TS clearance with SCI eligibility; strong Python/JavaScript; in-person in Arlington/Herndon; BS in Computer Science or related field.
Python, JavaScript, Linux, Kubernetes, Jenkins, GitLab, AWS, OpenStack, Ansible, Terraform, OpenTofu
1d
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Senior Cloud Computing Engineer
Ashburn, Virginia, United States
RemoteFull Time
Syms Strategic Group
Syms Strategic Group: Provides IT and professional services to federal government agencies.
8+ YOEExtensive AWS cloud engineering experience; design, deploy, manage CI/CD, IaC, security and cost optimization; 8+ years; US citizenship; Public Trust clearance; remote work.
AWS, Terraform, CloudFormation, CDK, Jenkins, GitLab CI, CodePipeline, CodeBuild, Docker, Kubernetes, ECS, EKS, Prometheus, Grafana, New Relic, Python, Bash, PowerShell, Node.js, SQL, T-SQL, IaC, CloudWatch, CloudTrail, HIPAA, GDPR, PCI DSS

HiringCafe market data

Senior Python Developer Jobs market signals in Halfway, MD, 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
210+
Hiring companies
83
Fresh sample
63% new in 30d
Salary visibility
57% show pay

Companies appearing in this market

BAE SystemsViasatECSFINRAForterraGDITLockheed MartinNorthrop Grumman

Work location mix in visible results

Onsite: 50Hybrid: 23Remote: 9