351 software development python developer jobs at 147 companies in Middletown, DE
2mo
Save
Mark Applied
Hide
Senior Python Development Lead
Philadelphia, Pennsylvania, United States
OnsiteFull Time
15+ YOE5+ Mgmt15+ years in data engineering/software development; Python/Django; ETL pipelines; data visualization; Agile; Linux; security; leads 5-6 juniors
Python, Django, SQL, Bash, JavaScript, Plotly Dash, D3.js, AG Grid, Apache Airflow, FastAPI, Linux, Git, CI/CD
2w
Save
Mark Applied
Hide
Lead Software Engineer - Python/React/AWS/AI
Wilmington, Delaware, United States
OnsiteFull Time
5+ YOE5+ years software engineering experience with system design, application development, SDLC, CI/CD, cloud-native systems, and applied AI-assisted development; strong Python, Java, React, and AWS skills.
Python, Java, React, AWS, AI
2w
Save
Mark Applied
Hide
Senior Python Engineer, Integration
Philadelphia or New York City or Austin or Sofia or Belgrade
RemoteContract
5+ YOE5+ years Python development experience focused on API and third-party integrations, observability, testing, and on-call production support.
Python, Django, Datadog, CloudWatch, Grafana
2w
Save
Mark Applied
Hide
Software Development Engineer
Philadelphia or Reston
OnsiteFull Time
5+ YOE5+ years building and operating distributed backend systems, experience with GraphQL/REST APIs, Python/Go/Java/C++, relational or NoSQL databases, containerized deployments and CI/CD; Bachelor's preferred; must be authorized to work in the US (no sponsorship).
GraphQL, REST, PostgreSQL, Python, Go, Java, C++, Docker, Kubernetes, MLOps, CI/CD
3mo
Save
Mark Applied
Hide
Software Engineer - AI Augmented Development
Wayne, Pennsylvania, United States
HybridFull Time
1+ YOEProficient in Python and SQL; strong AWS experience; able to use AI-assisted development tools; effective communicator.
Python, SQL, AWS, Snowflake (nice to have), AI tools (Claude Code, OpenAI Codex, Cursor, Copilot), CloudFormation or CDK, Terraform (nice to have), SQL
3w
Save
Mark Applied
Hide
Python API Developer
Malvern, Pennsylvania, United States
$110k-$120k/yr OnsiteFull Time
10+ YOEDesign and maintain REST APIs with Python and AWS Lambda; integrate with Amazon Aurora and DynamoDB; manage DB migrations with Liquibase; 10+ years experience and Bachelors in Computer Science required.
Python, Lambda, Aurora, DynamoDB, Liquidbase, CI/CD
1mo
Save
Mark Applied
Hide
Software Developer
Belcamp, Maryland, United States
$83k-$140k/yr OnsiteFull Time
10+ YOEBSc and 10+ years software development experience, U.S. citizenship with active Secret clearance, proficiency with Java/Python/C#/JavaScript, Linux/Windows experience, testing and documentation skills, DoD experience preferred.
Java, Python, C#, JavaScript, Linux, Windows
2mo
Save
Mark Applied
Hide
Software Developer | PTS Development | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
3+ YOEBS in CS or related, 3+ years developing production applications, proficiency in Python, C#, and/or Java, TypeScript/web experience preferred, strong collaboration and communication skills.
Python, C#, Java, TypeScript
2mo
Save
Mark Applied
Hide
Software Developer | PTS Development | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
3+ YOEBS in CS or related, 3+ years developing and supporting production applications, strong proficiency in Python, C#, and/or Java; TypeScript and web experience preferred; strong collaboration and communication skills.
Python, C#, Java, TypeScript
2w
Save
Mark Applied
Hide
Software Engineer
Conshohocken, Pennsylvania, United States
$87k-$123k/yr HybridFull Time
3+ YOEBachelor's degree or equivalent,3+ years software development experience,proficiency in Java, Python, Swift or JavaScript,strong problem-solving and communication skills,US work authorization required.
Java, Python, Swift, JavaScript
2mo
Save
Mark Applied
Hide
Senior Software Engineer - Python - 1099
Conshohocken, Pennsylvania, United States
RemoteTemporary
10+ YOE10+ years full stack experience; Python; remote US-based role; must pass background check; U.S. citizen.
Python
3w
Save
Mark Applied
Hide
Associate Software Developer
West Chester, Pennsylvania, United States
HybridFull Time
1+ YOE1+ years professional experience in AI/ML and micro-service systems; proficiency with AWS services, Python, C#, ML libraries, and enterprise software development practices.
SageMaker, Lambda, EC2, S3, EFS, SNS, SQS, EventBridge, Kinesis, Aurora, DynamoDB, RDS Proxy, Glue, Athena, Redshift, AWS Step Functions, AWS CodePipeline, Python, TensorFlow, PyTorch, scikit-learn, C#, PowerShell, SQL, JavaScript, UML, Docker, Git, GitHub, Jenkins, Bamboo, TeamCity, SpecFlow, Cucumber, Protobufs, Thrift, Avro, JSON, ODBC, Kafka, Angular, React
3w
Save
Mark Applied
Hide
Software Engineer III
Philadelphia, Pennsylvania, United States
$94k-$144k/yr RemoteFull Time
4+ YOEHands-on AWS serverless experience, strong Python skills, 4+ years software development, IaC and observability experience, bachelor's degree or equivalent preferred.
AWS Lambda, API Gateway, AppSync, SQS, SNS, EventBridge, Step Functions, DynamoDB, S3, boto3, AWS SDKs, AWS CDK, CloudFormation, Terraform, CloudWatch, X-Ray, CloudTrail, Aurora/RDS, DocumentDB, Glue, Athena, Python, Java, Spring Boot, JPA, Jakarta EE, Angular, TypeScript, JavaScript, HTML, CSS, GitHub Copilot, Amazon Q, ChatGPT
3mo
Save
Mark Applied
Hide
Software Engineer
Baltimore or Annapolis
HybridFull Time
5+ YOE5+ years enterprise software development; BS in Computer Science or related field; backend languages Java/C/C++/Rust/Python; experience with scalable systems; strong documentation; cryptography or cloud knowledge preferred.
Java, C/C++, Rust, Python, Cryptol, Haskell, Docker, Kubernetes, AWS, Azure
3d
Save
Mark Applied
Hide
Software Development Platform Engineer
San Leandro or Lake Forest or Johnson City or Philadelphia
$118k-$196k/yr HybridFull Time
Administer enterprise Azure DevOps and GitHub, manage CI/CD and identity access, implement security tooling, automate via scripting, and troubleshoot platform and pipeline issues.
Microsoft Azure DevOps, GitHub, GitHub Actions, Microsoft Azure CLI, PowerShell, Bash, Python, Terraform, ARM, Bicep, ConductorOne, SailPoint, GHAS, SIEM, SOAR, REST APIs
1mo
Save
Mark Applied
Hide
SENIOR SOFTWARE DEVELOPER/ENGINEER (CLOUD/CYBER)
Huntsville or Aberdeen or Colorado Springs or Crestview or Tupelo
OnsiteFull Time
7+ YOEBS in CS/Software Eng or equivalent, 7+ years software development experience, DoD Top Secret/SCI eligibility, experience with Python, containers, AI/LLMs, databases, Linux, AWS, and Agile/Scrum.
LLMs, Ollama, LM Studio, Python, C#, Go Lang, React, JavaScript, HTML, CSS, Git, Docker, Bash, TensorFlow, PyTorch, SQL, MongoDB, PostgreSQL, Redis, Linux, AWS, RESTful API, Agile/Scrum
1mo
Save
Mark Applied
Hide
Manager Software Development
Baltimore, Maryland, United States
OnsiteFull Time
5+ YOE3+ MgmtBachelor's in CS or related, 5+ years full-stack development experience, 3+ years supervisory experience, 2+ years integrating healthcare technologies, proficiency with JavaScript/Python/Java and modern web frameworks, healthcare interoperability knowledge.
React, Angular, Vue.js, JavaScript, Python, Java, SQL, NoSQL, Epic, EMR, API
4w
Save
Mark Applied
Hide
Principal Software Engineer
United States or Vienna or Baltimore
$220k-$372k/yr OnsiteFull Time
12+ YOE12+ years software development experience with expertise in cloud-native, storage and data management; proficiency in NFS/SMB/iSCSI and programming in C/C++/Golang/Node.js/Python.
C, C++, Golang, Node.js, Python, NFS, SMB, iSCSI, Docker, Kubernetes, GitHub, Jenkins, Ansible
2mo
Save
Mark Applied
Hide
Ground Software Engineer
King of Prussia, Pennsylvania, United States
OnsiteFull Time
1+ YOEBS degree and typically 1+ years software development experience; active Top Secret clearance with SCI eligibility required; experience with Scaled Agile, DevSecOps, and modern software development tools.
Java, C#, Rust, Angular, Python, Apache Kafka, Apache ActiveMQ, ELK Stack, OpenSearch, PostgreSQL, Redis, Helm, Kubernetes, Git, DevSecOps, CI/CD
1mo
Save
Mark Applied
Hide
Software Engineer
Aberdeen Proving Ground, Maryland, United States
$76k-$156k/yr HybridFull Time
3+ YOEU.S. citizen with TS/SCI clearance (CI Poly preferred), Bachelor’s in CS/SE/EE, 3+ years software development, strong C++ and Python experience, Linux and UI framework experience, API/CI-CD knowledge, and ability to work with RF/SIGINT data.
C++, Python, Linux, React, Angular, Vue, Git, CI/CD pipelines, Docker, Ansible, Cobbler, HTML, CSS, TypeScript, REST APIs, PostgreSQL, PostGIS, SQLite