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182 software development python developer jobs at 67 companies in Lancaster, PA

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Lead Software Engineer - Python/React/AWS/AI
Wilmington, Delaware, United States
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
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
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3mo
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Software Engineer - AI Augmented Development
Wayne, Pennsylvania, United States
HybridFull Time
PowerPay
PowerPay: Digital lending platform for home improvement and healthcare loans.
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
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3w
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Python API Developer
Malvern, Pennsylvania, United States
$110k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
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
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1mo
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Software Developer
Belcamp, Maryland, United States
$83k-$140k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
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
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3w
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Associate Software Developer
West Chester, Pennsylvania, United States
HybridFull Time
Venerable
Venerable: Manages and optimizes legacy variable annuity business blocks.
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
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1mo
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SENIOR SOFTWARE DEVELOPER/ENGINEER (CLOUD/CYBER)
Huntsville or Aberdeen or Colorado Springs or Crestview or Tupelo
OnsiteFull Time
Sentry Construction
Sentry Construction: Provides general contracting and comprehensive property maintenance services.
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
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2mo
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Ground Software Engineer
King of Prussia, Pennsylvania, United States
OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
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
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1mo
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Software Engineer
Aberdeen Proving Ground, Maryland, United States
$76k-$156k/yr HybridFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
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
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3mo
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Lead Software Engineer II – Java & Python
Wilmington, Delaware, United States
$100k-$135k/yr RemoteMultiple Commitments Available
Best Egg
Best Egg: Provides personal loans and credit cards for prime borrowers.
4+ YOE4-6 years professional software engineering; strong backend Java and Python; SQL/data modeling; AWS; DynamoDB, RDS, PostgreSQL; CI/CD; Docker; ECS/EKS; CloudWatch/Datadog; excellent communication and collaboration.
AWS, Docker, Kubernetes, ECS, EKS, CloudWatch, Datadog, DynamoDB, RDS, PostgreSQL, DocumentDB, CI/CD
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1w
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Software Engineer (Engineer Software 3) - 29586
Aberdeen Proving Ground or United States
$97k-$104k/yr HybridFull Time
HII
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
5+ YOE5+ years experience (Bachelors) developing C++ simulation software; ability to obtain TS/SCI clearance; experience with agent-based modeling, space domain concepts, and code review practices.
Confluence, Discourse, GitLab, Jira, C++, Python
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1mo
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Software Engineer III
King of Prussia or United States
RemoteFull Time
Vertex
VertexNASDAQ: VERX: Automates global indirect tax calculation and compliance for enterprises.
4+ YOEBachelors in CS/IT or related; 4 years cloud infrastructure/automation (AWS/Azure/GCP); 4 years software development with Java, Python or Go; 4 years SQL/NoSQL; 3 years Docker, Kubernetes, CI/CD and Pulsar; 3 years monitoring/incident response.
AWS, Azure, GCP, Java, Python, Go, SQL, NoSQL, Docker, Kubernetes, CI/CD, Pulsar
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2w
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Contract Associate Development Engineer
Hunt Valley, Maryland, United States
$82k/yr OnsiteContract, Full Time
Sinclair
SinclairNASDAQ: SBGI: Operates television stations and produces news and sports programming
0.5+ YOEBachelor's in CS or equivalent experience, ~6 months application/web development, proficiency with JavaScript/Java/Node.js/React/Python/SQL/NoSQL, familiarity with CI/CD and cloud-native architectures.
JavaScript, Java, Express, Node.js, MySQL, MongoDB, Mongoose, Python, ReactJS, jQuery, HTML5, CSS, CI/CD, IAC, AWS, Databricks, Docker, Kubernetes, Terraform
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1w
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Software Development Engineering - Advisor I
Jacksonville or King of Prussia
OnsiteFull Time
Fiserv
FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.
6+ YOE6+ years in DevOps/platform/SRE with 4+ years building CI/CD pipelines and Kubernetes automation; 4+ years scripting in Python/Bash/Golang; 3+ years using Git/Artifactory/SonarQube; bachelor or equivalent; valid unrestricted US work authorization required.
GitLab, GitHub Actions, Jenkins, Kubernetes, Amazon Elastic Kubernetes Service (EKS), Argo CD, Helm, Terraform, Python, Bash, Golang, Git, Artifactory, SonarQube, Liquibase, Flyway, Amazon Web Services (AWS)
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1w
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Senior Software Developer (NLP)
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOEUS citizen with Secret clearance; bachelor’s degree with 5 years relevant software development experience (or 8 years experience); experience integrating NLP into production, proficiency in modern programming languages and mission-critical systems.
Python, C++, Java, C#, Go, Docker, Kubernetes, transformer-based frameworks, vector databases, LLM APIs
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1mo
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Software Engineer II
Hartford or Atlanta or St. Paul or Hunt Valley
$120k-$199k/yr HybridFull Time
Travelers
TravelersNYSE: TRV: Provide property and casualty insurance for individuals and businesses.
4+ YOEBachelor's degree in CS or related STEM and 4+ years software development experience; experience with object-oriented languages, RESTful APIs, Salesforce preferred, Agile/Scrum experience, and ability to learn new technologies.
Salesforce, Apex, Lightning Web Components, Salesforce APIs, Java, C#, Python, JavaScript, RESTful APIs, Agile, Scrum, Version control systems
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2mo
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Software Development - Machine Learning
Aberdeen Proving Ground, Maryland, United States
$68k-$75k/yr OnsiteFull Time
Science and Technology Corporation
Science and Technology Corporation: Provides scientific, engineering, and technical services to government agencies.
3+ YOE3 years Python coding, 1 year ML coursework/experience, C++ or JavaScript, MySQL, DoD Secret eligible, U.S. citizen, Bachelor's degree in CS, ability to obtain security clearance.
Python, C++, JavaScript, MySQL, Machine Learning
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1w
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Ground Software Engineer
Fort Worth or King of Prussia or Orlando or Marietta
OnsiteFull Time
Infinity Systems Engineering
Infinity Systems Engineering: Provides specialized systems engineering and mission operations for aerospace programs.
1+ YOEDesign, develop, integrate, and test ground mission software (C++ primary) for DoD programs; U.S. citizenship and Secret clearance required; 1+ years software engineering experience preferred.
C++, C#, Python, GitLab, Git, Jira, Confluence, GitLab CI
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4w
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Senior Software Engineer
Aberdeen, Maryland, United States
$90k-$198k/yr OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
10+ YOE10+ years software engineering experience in Defense, BA/BS or equivalent experience, proficiency with C++, Java, Python, C#, secure coding and Defense standards, DoD cybersecurity certification preferred.
C++, Java, Python, C#, Git, SVN, CI/CD, automated testing tools
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2w
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Senior Software Engineer (Technical Lead) BSI - (Claude, GitHub, Python, NET/C#, Angular, AWS)
Hartford or Atlanta or Cockeysville or Saint Paul
$139k-$230k/yr HybridFull Time
Travelers
TravelersNew York Stock Exchange: TRV: Provider of commercial and personal property casualty insurance.
5+ YOE5+ years software engineering experience, experience shipping LLM/AI agent production systems, proficiency with GitHub, Python, .NET/C#, Angular, AWS, databases, and strong communication and leadership skills.
GitHub, Python, NET/C#, Angular, AWS, OCF, Mongo, DocumentDB, SQL Server, Claude Agent SDK, LangGraph, AgentCore, Anthropic, OpenAI
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2mo
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Agentic AI Software Engineer
King of Prussia, Pennsylvania, United States
$108k-$228k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOEBS in CS or related field; 8+ years software engineering; Python; SDLC; Git; Jira/Confluence; microservices; Agile; TS/SCI with Polyhedral.
Python, Git, GitLab, GitHub, Bitbucket, Jira, Confluence, REST APIs, Kubernetes, Helm, LangGraph, CrewAI, AutoGen, Pydantic AI, RAG, Langfuse, MLflow, DSPy
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