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Python Software Developer Jobs in New Castle, DE, US
390+ python software developer jobs from 130+ companies hiring in New Castle, DE, US.
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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
2w
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Software Engineer - 90402844 - Washington DC, Philadelphia PA or Wilmington DE (US)
Washington or Wilmington or Philadelphia
$72k-$93k/yr OnsiteFull Time
1+ YOEBachelor’s degree or equivalent; 1+ year software engineering; Java, Python, SQL; frontend/backend development; CI/CD and cloud; onsite in DC/DE/PA.
Angular, React, Java, Python, SQL, NoSQL, AWS, Azure, 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 Software Engineer
Philadelphia, Pennsylvania, United States
RemoteFull Time
Proficiency in Python, SQL (Postgres/Snowflake), REST APIs (Flask), ORM (SQLAlchemy); frontend (Angular 18+); AWS, Docker; DevOps; strong problem-solving and teamwork.
Python, SQL, Flask, SQLAlchemy, RESTful APIs, Angular, AWS, Docker, Git
1mo
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ML Software Developer II
Aberdeen, Maryland, United States
$85k-$110k/yr OnsiteFull Time
5+ YOEBachelor's degree; 5-9 years Python and ML experience; DoD security eligibility; US citizenship; ability to obtain DoD clearance
Python, TensorFlow, MySQL, C++, NLP, Deep Learning
2mo
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Robotic Software Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
Strong C++ (C++17+), Linux, Git, GitLab CI, CMake; ROS/ROs2 preferred; design and implement robotics software; build systems and tests.
C++, Linux, Git, GitLab CI, CMake, ROS, ROS 2, Docker, Python
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
1mo
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Senior Software Engineer
Malvern, Pennsylvania, United States
HybridFull Time
6+ YOE6-9 years of web app development, Ruby on Rails, JavaScript, REST APIs, PostgreSQL, Linux, and strong problem-solving skills.
Ruby on Rails, JavaScript, Python, PostgreSQL, Linux, Git, REST API, OpenAPI, JSON, XML, Redis, Docker, Kubernetes, Jenkins, JIRA, OAuth2, OIDC, SSL, SSH, SFTP/FTP, GraphQL
3w
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Staff Software Engineer - Amazon Connect REMOTE
Frisco or Overland Park or Danbury or Franklin or Coral Gables or Tampa or Alpharetta or King of Prussia or Chicago or Boston or Birmingham or New York City or Lake Mary or Charlotte or Houston or Sunrise or Hartford or San Antonio or Alexandria or Independence or Hunt Valley
$116k-$174k/yr RemoteFull Time
8+ YOE8+ years in software development and cloud computing; extensive AWS experience; AWS certification required; Bachelor's degree in CS/IT or related field.
AWS, Amazon Connect, AWS Lambda, API Gateway, DynamoDB, EventBridge, CloudWatch, SQS, KMS, S3, Terraform, Node.js, Python, Java
2w
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Software Developer (Engineer Software 3) - 28228 (Aberdeen Proving Ground, MD, Remote, United States)
Aberdeen Proving Ground, Maryland, United States
$100k-$130k/yr HybridFull Time
5+ YOESenior software engineer with 5+ years experience, proficient in C++, experience in space domain simulations, ability to obtain Top Secret clearance.
C++, Python, GitLab, Jira, Confluence, Discourse
1mo
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Lead Software Engineer, Full Stack
Wilmington, Delaware, United States
$179k-$205k/yr OnsiteFull Time
4+ YOESenior full-stack software engineer with 4+ years of software development experience; cloud experience (AWS/Azure/GCP); leadership and mentoring skills.
JavaScript, Java, TypeScript, Python, Go, SQL, HTML/CSS, Docker, Kubernetes, AWS, Open Source Databases, NoSQL
2w
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Specialist Software Engineering - AI Engineer
Cedar Rapids or Philadelphia or Denver
$131k-$170k/yr HybridFull Time
Bachelor's degree in CS/Engineering; strong Python & Spark; experience with AI/ML tools (AWS Bedrock, LangChain, Kiro); API design; AWS Lambda/API Gateway; RAG pipelines; PySpark; ETL/IO; enterprise security practices.
Python, Spark, PySpark, AWS Bedrock, LangChain, Kiro, Graph Database, Strands, AWS Lambda, API Gateway, AWS Glue, S3, Athena, EC2, CloudFormation, Terraform, CDK, Docker, ECS, EKS, OpenSearch, Pinecone, FAISS, API design, LLM, RAG pipelines
2w
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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
1w
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Software Engineers
Mount Laurel or Moorestown
$90k-$150k/yr OnsiteFull Time
5+ YOEMid to senior software engineer with DoD Secret clearance, bachelor’s in CS, 5+ years of experience in C++, Java, Python, or C#, on-site at Moorestown, NJ.
C++, Java, Python, C#, Linux, git, GitLab, Confluence
2mo
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Senior Software Engineer, Platform
Philadelphia or New York
$116k-$209k/yr OnsiteFull Time
4+ YOEDevelop and optimize platform services; cloud focus; Agile; automation; 4-7 years platform experience; AWS preferred.
AWS, Kubernetes, Go, Java, Scala, Python, JavaScript
1w
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Software Engineer - Federal Geospatial (Hub-Remote: DC or Philly Metro)
Alexandria or Philadelphia
$105k-$141k/yr RemoteFull Time
Element 84: Builds cloud-native geospatial software and data processing pipelines.
5+ YOE5+ years software engineering; full-stack Python/JavaScript; Clojure; React; AWS S3/IAM/Lambda; NOAA CAC badge; remote Scrum; BS in technical field.
Python, JavaScript, Clojure, React, AWS, S3, IAM, Lambda, Node.js, MacOS X
5d
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Full Stack Software Engineer
Aurora or Philadelphia
$82k-$172k/yr OnsiteFull Time
5+ YOEBS in computer science or related field; 5+ years OO experience with Python; active TS/SCI with Polygraph
Python, React, FastAPI, Flask, AWS Lambda, Step Functions, Amazon API Gateway, S3, DynamoDB, OpenSearch, PostgreSQL, MongoDB, GitLab CI/CD, Jenkins, NPM, Maven, Gradle
1w
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Senior Software Engineer, Backend
Philadelphia, Pennsylvania, United States
$160k-$210k/yr OnsiteFull Time
5+ YOE5+ years web apps; 2+ years leading teams; PostgreSQL; AWS; Docker/Kubernetes; Python/Django or Rails; strong communication.
JavaScript, Python, Django, Flask, React, React Native, Redux, Kubernetes, AWS, Docker, Celery, Redis, Datadog, CloudWatch
2mo
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Navigation Software Research and Development Engineer
Warminster, Pennsylvania, United States
$86k-$164k/yr OnsiteFull Time
5+ YOECS and math foundation; C/C++ programming; POSIX; software development; strong communication; willingness to obtain security clearance.
C, C++, MATLAB, Python
2mo
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Staff Software Engineer (Secret) {S}
King of Prussia, Pennsylvania, United States
HybridFull Time
5+ YOEBachelor's in CS or related field; 5+ years Java/C#/Python; 1+ year JavaScript/TypeScript; in-office 3+ days/week with potential for more; experience with Java, Spring Boot or Quarkus; SDLC, microservices, RESTful APIs; Agile/Scrum; active Secret U.S. Government security clearance.
Java, C#, Python, JavaScript, TypeScript, Spring Boot, Quarkus, REST, AWS, Azure, Kubernetes
1mo
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Experienced Application Software Engineer - Philadelphia, PA
Philadelphia, Pennsylvania, United States
OnsiteFull Time
5+ YOESenior software engineer with experience delivering cross-disciplined software for embedded, cloud, and client apps; strong OO design and patterns; mentoring and leadership skills.
C++, Go, Python, Embedded Linux, AWS, React, Java, C#, WPF
3w
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Advanced Software Engr
Fort Washington, Pennsylvania, United States
OnsiteFull Time
5+ YOE5+ years software engineering; AI/data-driven integration; strong in C++, C#, Java, Python, or HTML/React; experience with Docker and Kubernetes.
Docker, Kubernetes, C++, C#, Java, Python, HTML, React
1w
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Software Engineer II - Data Engineering
King of Prussia, Pennsylvania, United States
HybridFull Time
3+ YOEBachelor’s degree in IT or Computer Science; 3+ years SQL and relational DB; BI tools experience; Python; healthcare/insurance experience preferred.
Business Objects, SQL Server, Oracle Analytics Cloud, Snowflake, Parquet, Python
1mo
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Lead Software Engineer (Site Reliability)
Malvern, Pennsylvania, United States
HybridFull Time
Experience in distributed systems, cloud (AWS), Java/JavaScript, OpenTelemetry, microservices, observability, and incident response.
Java, JavaScript, Python, OpenTelemetry, AWS, Microservices, Observability
2mo
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Senior Software Engineer, Platform
Philadelphia or New York City
$116k-$209k/yr OnsiteFull Time
4+ YOEBachelor's degree +3 years or advanced degree +1 year; 4-7 years in platform services and cloud automation; Agile collaboration; security-focused; AWS preferred.
AWS, Kubernetes, Go, Java, Scala, Python, JavaScript
3mo
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Signal Processing Software Engineer
Warminster, Pennsylvania, United States
$125k-$175k/yr OnsiteFull Time
3+ YOEBachelors in Electrical/Computer Engineering, Physics, or Mathematics; 3+ years in signal processing; strong C/C++, Matlab, Windows/Linux; DoD clearance eligibility; US citizenship.
C/C++, Matlab, Python, GIT, Visual Studio, Cameo, Linux, Windows
2w
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Fractional Software Architect
Philadelphia, Pennsylvania, United States
$20k/mo HybridFull Time, Part Time
15+ YOE15+ years software architecture; 5+ years senior IC; Python/PostgreSQL backend; HIPAA/SOC 2/PCI familiarity; fractional/consulting experience; AI-assisted development.
Python, FastAPI, SQLAlchemy, Alembic, PostgreSQL, Azure, Azure Container Apps, Azure Service Bus, Azure DevOps, React, Next.js, pytest, Ruff, Azure AI Foundry, Claude, OCR, HIPAA, SOC 2, PCI
1mo
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Senior Director, Software Engineering
Philadelphia or Alexandria or Ann Arbor
HybridFull Time
10+ YOE5+ MgmtBachelor's in CS or related; 10+ years leadership; 10+ years software development; strong Java and Python.
Java, Python, Angular, Talend, Databricks, Spark, AWS, PostgreSQL, MySQL, Oracle, XML, XSLT, REST, SOAP, NodeJS
1mo
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Senior Software Engineer, AI Enterprise Engineering (Philadelphia, PA, US)
Philadelphia, Pennsylvania, United States
RemoteFull Time
8+ YOE2+ Mgmt8+ years software development; BS/MS in CS/Engineering; 2+ years in tech leadership; experience leading hybrid teams; cloud platforms (Azure/AWS/GCP); vendor management; proven distributed systems
Python, Java, C#, Azure, AWS, GCP
5d
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IAM Software Engineer
Atlanta or Kansas City or Philadelphia
HybridFull Time
3+ YOE3+ years in software engineering or IAM; Ping Identity experience; REST APIs; scripting (bash/python); SSO/MFA/adaptive authentication; LDAP knowledge; DevOps/CI/CD; JSON and Postman.
PingFederate, PingDirectory, PingAccess, PingOne, RESTful APIs, JSON, Postman, Bash, PowerShell, Python, JavaScript, LDAP
2mo
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Software Integrator, Senior
Aberdeen Proving Ground, Maryland, United States
$87k-$198k/yr OnsiteFull Time
5+ YOESenior software integrator with 5+ years in OS-level software; TS/SCI clearance; Bachelor's in STEM; proficient in YAML, .NET, Go, JSON/XML/HTML/CSS/React/Python; Git/Bitbucket/Jenkins/CI/CD; PowerShell/Batch; embedded software design.
YAML, .NET, Go, JSON, XML, HTML, CSS, React, Python, Git, Bitbucket, Jenkins, CI/CD, PowerShell, Batch
3w
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Associate Database Platform Developer
Wilmington, Delaware, United States
$90k-$110k/yr HybridFull Time
Experience with Python, Perl, or Java; basic SQL and relational databases; software development basics; strong problem solving; team collaboration.
Python, Perl, Java, SQL
6d
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Software Engineer II
Wilmington, Delaware, United States
$153k-$162k/yr OnsiteFull Time
5+ YOEBachelor’s in Computer Science or related field plus 5 years of experience; Hadoop Hive, Shell Scripting, Python, Snowflake, Informatica, Git/Bitbucket, Spark, Airflow/Automic, SQL Server.
Hadoop, Hive, Shell Scripting, Python, Snowflake, Informatica, Git/Bitbucket, Spark, Apache Airflow, Automic, SQL
6d
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Sr. Spclst , Software Engineering
West Point or Rahway
$117k-$184k/yr HybridFull Time
5+ YOEBachelor's in IT/CS or related tech field; 5+ years software development; Python proficiency; REST APIs; GitHub/automation tools; SQL; Agile workflows; regulatory compliance; cloud platforms; experience with LIMS/ELN and sample management domain.
Python, JavaScript, Java, C#, GitHub, Robot Framework, XRay, REST, SQL, Jira, AWS, Azure, GCP, CloudFormation, Terraform, CI/CD
1mo
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Software Engineering Lead
Camden or Conshohocken
$140k-$160k/yr HybridFull Time
10+ YOE5+ Mgmt10+ years in software engineering; 5+ years in architectural roles; Python proficiency; REST APIs and event-driven design; Azure-native tech; CI/CD; strong multiple language and DB skills.
Python, REST APIs, Azure, Snowflake, CI/CD, Docker, Kubernetes
3d
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00584-Software Engineer 3
Annapolis Junction, Maryland, United States
$175k-$235k/yr OnsiteFull Time
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
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Principal Software Engineer
Boston or St. Louis or Cleveland or Philadelphia or Chicago or San Francisco or New York City or Kansas City or Atlanta or Minneapolis or Dallas or Richmond
$173k-$260k/yr OnsiteFull Time
8+ YOE8+ years Java development; 4+ years AWS cloud experience; cloud-first architecture; CI/CD, DevOps; serverless; strong communication.
Java, Spring, Terraform, NoSQL, RDS, Kafka, Python
2w
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Software Engineer - Agentic AI Platform
Annapolis Junction or Herndon or Reston
$104k-$166k/yr OnsiteFull Time
5+ YOEBS with 5 years, MS with 3 years, or PhD with AI/ML experience; strong Python; agentic systems; LLM APIs; FastAPI/React; Docker/Kubernetes; PostgreSQL; US Citizenship required.
Python, FastAPI, React, Docker, Kubernetes, PostgreSQL, Airflow, Prefect, Celery, LangChain, LangGraph, DeepAgents, OpenTelemetry, Jaeger, Prometheus
1mo
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Senior Director, Software Engineering
Philadelphia or Alexandria or Ann Arbor
HybridFull Time
10+ YOE5+ Mgmt10+ years in technology leadership with cross-functional teams; 10+ years software engineering; Bachelor's in CS or related field; Proficient in Java and Python.
Java, Python, XML, HTML, XSLT, XML Schema, XQuery, XPath, PDF, TIFF, Angular, Talend, Pentaho, Databricks, Spark, EMR, Hive, Microservices, SOAP, REST, JavaScript, Node.js, AWS, AMQ, JMS, Spring Boot, PostgreSQL, MySQL, SQL Server, Oracle, ETL, SaaS, NL P, ML, AI
1mo
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Data Developer Intern
Exton, Pennsylvania, United States
$52k-$78k/yr HybridInternship
Pursuing a Master’s in CS/Software Eng; strong Java or Python; SQL; cloud basics; Agile; data/ETL interest.
Java, Python, SQL, AWS, Azure, GCP
HiringCafe market data
Python Software Developer Jobs market signals in New Castle, 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
390+
Hiring companies
130+
Fresh sample
49% new in 30d
Salary visibility
58% show pay
Companies appearing in this market
T-MobileCACICapital OneUniversal Health ServicesVanguardARKA GroupGhost RoboticsIn-Depth Engineering
Work location mix in visible results
Onsite: 36Hybrid: 28Remote: 7