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Senior Python Developer Jobs in Dallastown, PA, US
220+ senior python developer jobs from 96 companies hiring in Dallastown, PA, US.
2mo
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Python Developer
Woodlawn, Maryland, United States
$144k-$197k/yr OnsiteFull Time
1+ YOEDesign and develop large-scale Python applications with ML/LLM, data processing with NumPy/Pandas, performance analysis, collaboration, TDD, Git, SQL, security, agile practices, and cloud deployment.
Python, NumPy, Pandas, Git, Bitbucket, Visual Studio Code, PostgreSQL, MongoDB, SQL, Splunk, Dynatrace, AWS, Azure, Jenkins
2mo
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Senior Python Software Engineer
Linthicum Heights, Maryland, United States
$170k-$260k/yr OnsiteFull Time
6+ YOEActive TS/SCI with Polygraph clearance; U.S. citizenship; 6+ years software engineering with MS in CS (or 8+ years with BS), or 10+ years with AA, or 12+ years with high school diploma; strong communication and independent work skills.
Python, Docker, Django, Flask, MongoDB, MariaDB, REST, JSON, XML, Jira, Confluence, Git, AWS
1mo
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Senior Software Engineer (Python)
Columbia, Maryland, United States
$170k-$240k/yr OnsiteFull Time
12+ YOESenior software engineer with 12+ years exp, Python expert, production apps, AI concepts, Kafka, Elasticsearch; TS/SCI with polygraph.
Python, Kafka, Elasticsearch, PydanticAI, LangGraph
2mo
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CNO Python Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
7+ YOETS/SCI w/ Poly required; 7+ years of programming with BS or 11+ years with HS; Python, JSON/YAML, OOP, version control; experience in CNO context and testing.
Python, JSON, YAML, Git, Subversion, Confluence, Jira
4d
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Senior Software Engineer, Python
Linthicum, Maryland, United States
OnsiteFull Time
5+ YOE5+ years Python3, 2+ years MySQL, REST APIs, data science basics; Django and ML packages a plus.
Python, MySQL, RESTful APIs, Django, Keras, TensorFlow
2w
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Senior Software Developer
Richmond or Baltimore or Nashville or Mechanicsburg or Raleigh
$105k-$145k/yr HybridFull Time
5+ YOESenior software developer with 5+ years of experience in full-stack design and geospatial applications.
SQL, C#, Java, Python, HTML, CSS, JavaScript, ASP.Net Core, Angular, React, Vue.js, Esri software
1w
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Senior Full Stack Developer
Baltimore, Maryland, United States
$133k-$189k/yr RemoteFull Time
5+ YOESenior full stack developer with 5+ years of experience, strong JS/Python, React/Node.js, AWS, Git, and government project experience.
React, Next.js, TypeScript, Python, AWS, Redis, DynamoDB, Lambda, S3, API Gateway, Git, Jenkins, Snowflake, PostgreSQL, Plotly, D3, Jest, React Testing Library, Jira, Confluence
2mo
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Senior Software Engineer
Annapolis Junction or Columbia
OnsiteFull Time
7+ YOESenior software engineer with 7+ years SWE experience; BS in CS required; strong Java/Python, CI/CD, and security clearance with polygraph; experience with Agile; ability to design, develop, and deploy software.
Java, Python, Git, Shell, Maven, JavaScript, HTML, CSS, JUnit, IDE, Spring, Jenkins, Hibernate, MySQL, Web Services, Google Web Toolkit, Vaadin, Docker, Kubernetes, OpenShift, GitLab CI, SonarQube
2mo
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Senior Software Developer
Hanover, Maryland, United States
OnsiteFull Time
20+ YOETwenty years of software development; multi-language proficiency (Java, Python, Rust, C++, Golang); Top Secret/SCI with Poly clearance.
Java, Python, Rust, C++, Golang, Docker, Kubernetes
2w
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Senior Software Engineer
Owings Mills, Maryland, United States
$121k-$206k/yr HybridFull Time
5+ YOESenior software engineer with AWS, Amazon Connect, Java/Python, CI/CD, Docker, OAuth2, and distributed systems.
Java, Python, Amazon Connect, AWS, Lambda, Lex, DynamoDB, S3, Git, Docker, OAuth2, OIDC, JWT, ADFS, Terraform
4w
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Staff Software Engineer- Python
Oaks, Pennsylvania, United States
OnsiteFull Time
8+ YOE8+ years OOP with Python; 8+ years SQL; 8+ years Git; Bachelor's; skilled in JS/TS/React/Node/Python; cloud (AWS/Azure/GCP); Docker; security basics.
JavaScript, TypeScript, React, Node, Python, Flask, AWS, Azure, GCP, Pulumi, Terraform, Docker, TCP/IP
3w
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Senior Software Developer
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
5+ YOEDesign, develop, and implement software across multiple languages; lead components; troubleshoot; mentor and guide developers; ensure secure, maintainable results. Must be a US citizen with SECRET clearance.
Python, C++, Java, C#, Go, Docker, Kubernetes, CI/CD
2mo
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Senior Software Test Engineer (onsite)
New Freedom, Pennsylvania, United States
$80k-$110k/yr OnsiteFull Time
5+ YOESenior Software Test Engineer with 5+ years in software development and testing; 4+ years manual testing (preferably automated); proficient in C/C++, Python; hardware testing with oscilloscopes, logic analyzers, and JTAG; experience leading testing for embedded systems; US citizen or permanent resident.
C, C++, Python, Oscilloscopes, Logic Analyzers, JTAG
3mo
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Senior Data Engineer
Baltimore, Maryland, United States
$125k-$150k/yr HybridFull Time
8+ YOE8+ years in Linux, data engineering, PostgreSQL, data pipelines; Python; Kubernetes; Apache Airflow; cloud and on-prem; BS/MS in CS/IT.
PostgreSQL, Apache Airflow, Kubernetes, Python, Linux
3w
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Senior Software Engineer
Columbia, Maryland, United States
$190k-$240k/yr OnsiteFull Time
12+ YOETS/SCI with polygraph; 12+ years experience or 4 additional years in lieu of a degree; strong Python/JavaScript full-stack, data querying, Linux, Git, and on-site collaboration.
Python, JavaScript, Linux, Git, Docker, Kubernetes
4w
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Senior Software Engineer
Aberdeen, Maryland, United States
$140k-$225k/yr HybridFull Time
7+ YOE7+ years software engineering experience; BS in CS/CE/EE; strong C/C++/Java/Python; CUDA; Docker; REST APIs; TS/SCI clearance; willing to travel; hybrid in Aberdeen, MD.
C, C++, Java, Python, Shell Scripting, Google Protocol Buffers, HTTP REST APIs, Docker, RPMs, CUDA
1mo
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Senior Full Stack Developer (React)
New Hyde Park or Moline or Hartford or Framingham or West Palm Beach or Norcross or Chicago or Milwaukee or Baltimore or Piscataway or United States
$125k-$150k/yr RemoteFull Time
5+ YOE5+ years professional experience building production web apps; 2+ years in senior/lead roles; strong Python and React/TypeScript; AI/ML integration; Kafka/event-driven architectures; PostgreSQL/Redis; Kubernetes/DevOps; AS400 integration experience preferred
Python, FastAPI, SQLAlchemy, Pydantic, React, TypeScript, Tailwind, Redis, PostgreSQL, Kafka, Databricks, MLflow, Airflow, Docker, Kubernetes, GitHub Actions, ODBC, Data Queues, RBAC, OAuth
1w
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Senior Software Engineer
Columbia, Maryland, United States
$190k-$200k/yr OnsiteFull Time
10+ YOEActive TS clearance; 10+ years IT/DevSecOps with AWS; BS in CS/IT/Engineering or equivalent; experience in full stack development and ML pipeline deployment.
Python, Go, Java, JavaScript, TypeScript, React, AngularJS, NextJS, AWS, DevSecOps
2mo
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Senior Software Developer (Secret Clearance Required)
Aberdeen, Maryland, United States
HybridFull Time
3+ YOEDoD security clearance, 3-5+ years in software development, strong Android/Java/C/C++, DevOps tools, Linux, APIs, Docker, Kubernetes, cloud, Agile.
Git, Gitlab, Jira, Nexus, Artifactory, Gradle, Bash, Python, Docker, Kubernetes, Linux, Android, Java, JavaScript, C, C++, C#, APIs, NVIDIA CUDA, ElasticSearch, Kibana
1w
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Senior Forward Deployed Engineer (React/Angular + Python + SQL)
Columbia, Maryland, United States
$140k-$150k/yr OnsiteFull Time
6+ YOE6+ years production experience; strong React/Angular, Python, and SQL; leadership and stakeholder communication.
React, Angular, Python, SQL, CI/CD, Docker, Testing
2mo
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Senior Full-Stack Engineer
Culver City or Linthicum or Allen or Woodcliff Lake or Chicago or Orlando or Baton Rouge or Waltham or Phoenix or Harrisburg or West Valley City or Austin or Alpharetta or San Diego or Indianapolis or Lexington or Parma or Little Rock or Asheville or Birmingham or Chantilly or Washington or Brentwood or Plantation or Fort Collins or San Mateo or Schaumburg or Brooklyn
$140k-$180k/yr OnsiteFull Time
7+ YOE7+ years in software development; Bachelor's degree in CS/Engineering; backend (Node.js) and frontend (React) experience; API integrations; cloud and database experience.
Node.js, HapiJS, Python, JavaScript, React, SQL, Serverless, Lambda, CloudFormation, Elastic Beanstalk, EC2, VPC, DynamoDB, RDS, G Suite, Microsoft Graph, Okta, OneLogin, Slack, Linux, Docker, Datadog, CloudWatch, MQTT, log/data pipelines
3w
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Senior Software Engineer
Clarksburg, Maryland, United States
$120k-$140k/yr OnsiteFull Time
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
5d
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Senior Staff Engineer - Financial Substantiation Platform *Hybrid*
Bethesda or Dallas or Washington or Falls Church or Baltimore or Seattle
$120k-$260k/yr HybridFull Time
10+ YOESenior software engineer with 10+ years, architecture leadership, distributed systems, cloud, and data-focused reconciliation platforms. Strong collaboration with Finance, Compliance, and Product.
Java, C#, Go, REST, gRPC, SQL, AWS, Azure, GCP, CI/CD, Containers, IaC, DevOps, Kubernetes, Kafka, Snowflake, Airflow, Python, PySpark, Snowpark
3w
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Cyber Software Engineer Senior Staff
Hanover, Maryland, United States
$151k-$266k/yr OnsiteFull Time
20+ YOETwenty years as a software engineer on large-scale programs; Bachelor's in Computer Science or related field; active polygraph security clearance; proficiency in C++, Python, Kubernetes.
C++, Python, Kubernetes
3mo
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Senior Data Engineer
Baltimore, Maryland, United States
$125k-$150k/yr HybridFull Time
8+ YOE8+ years in data engineering, PostgreSQL, data pipelines, cloud data lakehouse, Airflow, Kubernetes, Python; BS or MS in CS/IT.
PostgreSQL, Apache Airflow, Kubernetes, Python, Shell scripting
2w
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Senior FPGA Engineer
Columbia, Maryland, United States
$96k-$182k/yr OnsiteFull Time
5+ YOESTEM degree with 5+ years FPGA design experience across HDL, MATLAB/Simulink, Cadence Stratus, and Python/C; U.S. security clearance required.
HDL, MATLAB, Simulink, Cadence Stratus, HDLCoder, Altera DSPBuilder, Python, C, Oscilloscope, Logic Analyzer, Multimeter
6d
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Senior Systems Engineer
Aberdeen Proving Ground, Maryland, United States
$135k-$155k/yr OnsiteFull Time
10+ YOEBachelor's in CS/Engineering; 10+ years experience; active Secret clearance; RF, systems/communications, or software engineering; MATLAB/Python; travel up to 25%.
MATLAB, Python, RF test equipment, data analysis tools
3w
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Senior Data Engineer
Fulton, Maryland, United States
HybridFull Time
8+ YOE8+ years of data engineering experience; hands-on with Python, PySpark, SQL; AWS (Glue, S3, Redshift, Lambda, EMR); data modeling; ETL; security/compliance; strong client and collaboration skills.
Python, PySpark, SQL, AWS Glue, AWS S3, AWS Redshift, AWS Lambda, AWS EMR, CloudFormation, Terraform, CloudWatch
1mo
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Senior Controls Engineer
Baltimore or Newark or Allentown or Philadelphia
$85k-$120k/yr OnsiteFull Time
7+ YOE1+ MgmtLead design/implementation of control systems; strong PLC/SCADA/HMI, C/C++, Python; 7-10 years in industrial automation; Bachelor’s in Electrical/Control Systems engineering; forklift experience a plus.
PLCs, SCADA, HMI, embedded systems, C, C++, Python, simulation tools
2mo
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Senior Test Engineer
Newark, Delaware, United States
$98k-$153k/yr OnsiteFull Time
2-5 years with Bachelor or 1-3 with Master or 0-1 with PhD; hands-on lab testing; DFМ knowledge; LabVIEW/C/C#/Python; CAN/CANBUS, I2C, SPI; DFM; strong docs.
Multimeters, Oscilloscopes, LabVIEW, C, C#, Python, NI platforms
4w
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Senior DevOps Engineer
Columbia, Maryland, United States
$106k-$137k/yr RemoteFull Time
8+ YOEBachelor’s degree in Computer Science or Engineering, or 10+ years of relevant experience; 8+ years DevOps; strong AWS, IaC (Terraform/Terragrunt), GitHub Actions; DevSecOps focus; containerization (Docker); Python or Bash; U.S. citizenship or Green Card with ability to obtain Public Trust clearance.
GitHub Actions, Terraform, Terragrunt, Docker, Python, Bash, Django, Databricks, Redshift, Maven, Nessus, BurpSuite, OWASP, AWS
2mo
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Senior Software Engineer (Hybrid) - 27020 (Columbia, MD, Maryland, United States)
Columbia, Maryland, United States
$138k-$200k/yr HybridFull Time
9+ YOE9+ years backend software engineering; proficient in Java, Python, or Go; experience with Trino, Kubernetes, Airflow, and PostgreSQL; strong problem-solving and collaboration skills; willingness to work hybrid in Columbia, MD.
Java, Python, Go, Trino, Kubernetes, Airflow, PostgreSQL, Keycloak, REST APIs, CI/CD
1mo
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Software Systems Engineer Senior
Aberdeen, Maryland, United States
$116k-$262k/yr OnsiteFull Time
10+ YOESenior software systems engineer with 10+ years in the software lifecycle, TS/SCI clearance, leading contractor teams, RF architectures, EW/SIGINT, and MOSA; Bachelor's in CS or Software Engineering.
Java, Python, C++, MOSA, AWS, Azure, containerization, microservices, CI/CD, Scrum, Kanban, APIs, Databases, Cybersecurity
1mo
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Senior Cybersecurity Engineer (Dir, P3)
Baltimore, Maryland, United States
$65k-$125k/yr OnsiteFull Time
3+ YOE3+ years automating workflows and playbooks with SOAR; Python/PowerShell/Bash scripting; SIEM/EDR integration; SOC automation and detection tuning.
SOAR, SIEM, EDR, Python, PowerShell, Bash
1w
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Software Engineer 2
Columbia, Maryland, United States
OnsiteFull Time
14+ YOEExperience with Zabbix, Python, Java, CSC, and Linux; senior SWE with leadership responsibilities.
Zabbix, Python, Java, CSC, Linux
1mo
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Senior Data Engineer- MS Fabric
Lebanon, Pennsylvania, United States
OnsiteFull Time
5+ YOE5+ years designing and supporting enterprise data platforms; hands-on Microsoft Fabric experience; governance and Purview expertise; strong SQL, Python, Power BI skills.
SQL, Python, Microsoft Fabric, Power BI, Microsoft Purview
2d
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Senior DevOps Engineer - Automation and Security
Linthicum Heights or Linthicum
$104k-$218k/yr OnsiteFull Time
Active TS/SCI with Poly; 6-12 years experience by education level; Linux, Docker, Python, AWS, GitLab, Ansible; on-site.
Linux, Docker, Python, AWS, GitLab, Ansible
15h
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Senior Sales Engineer
New York City or Baltimore
$190k-$228k/yr HybridFull Time
3+ YOE3+ years in sales engineering or similar; cloud/web tech; security; customer-facing; strong demos; Linux; scripting; strong written communication; travel 20%.
Cloud, CDN, WAF, WAAP, Linux, Python
3w
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Senior Application\Middleware Engineer
Charleston or Newark or Bellevue or Plano or Detroit or Nashville or Tulsa or New York
OnsiteFull Time
10+ YOEBachelor’s degree in engineering; 10+ years in a global environment; AWS certifications or equivalent; strong middleware experience (IBM WebSphere, Apache Tomcat, Java, JBoss, SFTP, Dynatrace, IIS, etc.); Windows/Linux server administration; AWS services including S3, EKS, ECS, containers, Kubernetes, Terraform; scripting in PowerShell or Python a ...
AWS, Linux, Windows Server, IBM WebSphere, Apache Tomcat, Java, JBoss, SFTP, Dynatrace, IIS, Terraform, PowerShell, Python, ServiceNow, Microsoft Teams, SharePoint, Kubernetes, EKS, S3, ECS
1mo
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359 - Sr. AI Engineer
Linthicum, Maryland, United States
$191k-$214k/yr OnsiteFull Time
8+ YOEBachelor's degree plus 8 years of relevant experience; proficiency in Python, AI/ML tooling, data engineering; experience with LLMs, RAG, and databases; familiar with Agile, Git, Jira, Confluence. Active TS/SCI with polygraph; US citizenship required.
Python, LLM integration, data engineering, RAG framework, relational databases, vector databases, Git, Jira, Confluence, Rust, Claude Code, Codex
HiringCafe market data
Senior Python Developer Jobs market signals in Dallastown, PA, 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
220+
Hiring companies
96
Fresh sample
48% new in 30d
Salary visibility
78% show pay
Companies appearing in this market
Association of Universities for Research in AstronomyBelay TechnologiesCACIGliaCell TechnologiesManTechParsonsT. Rowe PriceHII
Work location mix in visible results
Onsite: 48Hybrid: 24Remote: 7