33 software framework developer jobs at 17 companies in Lancaster, PA
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Engineer, Software Development
Hunt Valley, Maryland, United States
$85k-$105k/yr HybridFull Time
5+ YOERequires 5+ years developing responsive websites with HTML, CSS, JavaScript, and modern frameworks; C#, APIs, SQL, databases, Agile, Git, and software development lifecycle experience.
HTML5, CSS, JavaScript, Angular, React, Vue.js, C#, SQL, Microsoft SQL Server, MySQL, MongoDB, Bootstrap 5, SOAP, REST, HTTP, Azure DevOps, Git, Dell Boomi, Microsoft .NET, TypeScript
1mo
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Sr. Software Developer
Mechanicsburg, Pennsylvania, United States
$100k-$105k/yr OnsiteContract
10+ YOE10+ years professional software development experience; strong expertise with C#, VB.NET, .NET 8+, ASP.NET Core, JavaScript and modern front-end frameworks, SQL/Entity Framework, microservices, messaging, Git; U.S. citizen with current T3 investigation; onsite work required.
C#, VB.NET, .NET 8+, ASP.NET Core, JavaScript, React, Angular, SQL, Entity Framework, NServiceBus, RabbitMQ, Git
2w
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Senior Software Engineer - Digital Products
Reading, Pennsylvania, United States
HybridFull Time
Penske Truck Leasing: Provides commercial truck leasing, rental, and vehicle maintenance services.
10+ YOE1+ MgmtBachelor’s degree or equivalent experience, 10+ years of software development, web framework proficiency, architecture experience, Agile delivery, project leadership, mentoring, and technical communication skills.
React, Angular, jQuery, HTML, CSS, JavaScript, Spring, Spring-MVC, myBatis, RESTful APIs, CI/CD, SVPG Product Operating Model
1mo
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Lead Software Engineer (Bank Tech)
McLean or Wilmington or Richmond or New York City or San Francisco or Philadelphia or Canada or United Kingdom or Philippines
$179k-$225k/yr OnsiteFull Time
4+ YOEBachelor’s degree and 4+ years of software engineering experience required, including 1+ year with cloud computing. Leads developers and technology projects; preferred experience includes AWS, Agile, open-source frameworks, and AI tooling.
JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, Go, RDBMS, NoSQL, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud, GCP, Agile
1w
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Software Engineer Sr - E3
King of Prussia, Pennsylvania, United States
$110k-$205k/yr OnsiteFull Time
3+ YOERequires JavaScript/Node, C#, modern web frameworks, GitLab pipelines, Agile/Scrum, Top Secret clearance with SCI eligibility, and front-end development experience with React or Angular.
JavaScript, Node.js, C#, Angular, React, Vue.js, Ember.js, GitLab, Agile, Jira, Version One, Confluence, RxJS, Redux, MobX, NgRx, Context API, HTML5, CSS3, Sass, TypeScript, Material UI, Ant Design, Bootstrap, Jest, React Testing Library, Karma, Jasmine
3w
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Sr. Software QA Engineer
Downingtown, Pennsylvania, United States
$105k-$135k/yr OnsiteFull Time
5+ YOEBachelor's in CS or related,5+ years in software QA owning test strategy and automation,proficiency with end-to-end frameworks and scripting,CI/CD pipeline experience,advanced Jira use.
Cypress, Playwright, TypeScript, Python, C#, TeamCity, Jenkins, GitHub Actions, Jira, GitHub Copilot, HCS.ai, IN Carta
1mo
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Software Engineer II, Data Scientist
Oaks, Pennsylvania, United States
HybridFull Time
3+ YOE3+ years Python development; experience building and deploying LLM-powered applications; knowledge of RAG, vector databases, embeddings, semantic search, agentic frameworks, prompt engineering, AI governance; bachelor's in CS or equivalent preferred.
Python, LangChain, LangGraph, Semantic Kernel, LlamaIndex, AutoGen, CrewAI, OpenAI, Azure AI Foundry, Anthropic, Azure, AWS
1d
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Front-end Software Developer
Aberdeen Proving Ground, Maryland, United States
$90k-$190k/yr OnsiteFull Time
Active TS/SCI clearance; production front-end development with JavaScript or TypeScript frameworks; HTML, CSS, web architecture, APIs, data interfaces, Git, testing, code review, and CI/CD experience.
JavaScript, TypeScript, React, Angular, Vue, HTML, CSS, REST APIs, WebSockets, Git, CI/CD
1d
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Front-end Software Developer
Aberdeen Proving Ground, Maryland, United States
$90k-$190k/yr OnsiteFull Time
Active TS/SCI clearance; production front-end development with JavaScript or TypeScript frameworks; HTML/CSS; REST APIs or WebSockets; data-intensive interfaces; Git, testing, code review, and CI/CD.
JavaScript, TypeScript, React, Angular, Vue, HTML, CSS, REST APIs, WebSockets, Git, CI/CD
1mo
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Senior Lead Software Engineer, Full Stack (Bank Tech)
McLean or Wilmington or Philadelphia
$209k-$262k/yr OnsiteFull Time
6+ YOEBachelor's degree, 6+ years software engineering experience, and 1+ year cloud computing experience required. Preferred: 9+ years in named languages, AWS expertise, frameworks, Agile, and rapid delivery across domains.
AWS, Microsoft Azure, Google Cloud, JavaScript, Java, TypeScript, Python, Go, Fargate, Lambda, Agile
1mo
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Full Stack Mid-level Java Software Engineer
Wilmington, Delaware, United States
$64k-$106k/yr OnsiteFull Time
3+ YOEBachelor's degree in CS or related, 3+ years Java-focused software development, experience with Spring Boot, microservices, Azure, Kubernetes, CI/CD, monitoring tools, testing frameworks, and security best practices.
Java, Python, JavaScript, C#, Spring Boot, RESTful, Azure, Kubernetes, CI/CD, Prometheus, Grafana, Datadog, JUnit, Mocha, Terraform, CloudFormation, SQL, NoSQL
4w
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Senior Software Engineer
Wilmington, Delaware, United States
HybridFull Time
Strong C#/.NET Core development skills, front-end framework and JavaScript/TypeScript proficiency, experience with Entity Framework Core, SQL Server, Azure Functions, AI-assisted tools, and test automation.
C#, .NET Core, Blazor Server, Blazor WebAssembly, GitHub Copilot, Cursor, Claude Code, Entity Framework Core, SQL Server, Azure Functions, Bootstrap, Playwright, MediatR, Fluxor, Polly, Docker, Kubernetes, Artillery, JMeter, K6, Locust, Azure AI Foundry, Azure OpenAI Service, Git, React, Angular, Vue, JavaScript, TypeScript
2d
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AI Solution Engineer
Espoo or Mesa or Tampere or Burlington or York or Perth
HybridFull Time
Degree or equivalent learning in computer science, data science, software engineering, or AI; software engineering fundamentals; AI knowledge or curiosity; exposure to cloud development, APIs, Git, or prototyping frameworks.
Git
3mo
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Full Stack Developer & AI/ML Engineer - Vision AI
Royersford, Pennsylvania, United States
OnsiteFull Time
10+ YOE10+ years software development experience, strong computer vision and ML expertise, edge deployment experience, proficiency in Python and TypeScript, familiarity with modern ML frameworks and GPU acceleration, supervisory experience preferred.
Python, TypeScript, PyTorch, TensorFlow, Keras, Mask R-CNN, ResNet, U-Net, OpenCV, ONNX, CUDA, cuDNN
3mo
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Senior Android Developer – Banking Applications
Wilmington, Delaware, United States
$107k-$178k/yr HybridFull Time
3+ YOE5+ years Android development with Java/Kotlin; banking/fintech experience; secure mobile development; testing frameworks; collaborative team player.
Java, Kotlin, Android, Jetpack Compose, Espresso, JUnit, Mockito, CI/CD, DevOps, Secure coding
2w
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Senior AI/ML Engineer
Malvern or Philadelphia or Charlotte
HybridFull Time
5+ YOEMaster’s degree in a related field, 5–8 years of AI/ML or software development experience, Python, ML frameworks, LLMs, agentic principles, vector databases, data pipelines, and retrieval systems.
Python, TensorFlow, PyTorch, scikit-learn, AWS, MLOps
2w
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Senior AI/ML Engineer
Philadelphia or Charlotte or Malvern
HybridFull Time
5+ YOEMaster's degree in computer science, machine learning, artificial intelligence, or related field; 5–8 years of AI/ML or software development experience; Python, ML frameworks, LLM, agentic systems, vector databases, and retrieval systems experience.
Python, TensorFlow, PyTorch, scikit-learn, AWS, MLOps, LLMs
2w
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Tech Lead Software Engineering Sr Advisor II
Berkeley Heights or Omaha or Wilmington or United States
$186k-$286k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience; 8+ years with enterprise frameworks and cloud technologies; 4+ years with CI/CD, containers, and databases; bachelor's degree or equivalent.
Java, Spring Boot, Microsoft Azure, Amazon Web Services (AWS), .NET, Angular, Python, Continuous Integration and Continuous Delivery (CI/CD), GitLab CI, Jenkins, Kubernetes, OpenShift, Docker, Google Cloud Platform (GCP), Java Persistence API (JPA), Hibernate, OAuth 2.0, JSON Web Token (JWT), Transport Layer Security (TLS)
1d
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Java Developer
Newark, Delaware, United States
$80k-$100k/yr OnsiteFull Time
10+ YOEBachelor's degree in computer science and 10–15 years of experience with Java, microservices, Spring Framework, Spring MVC, Spring Boot, Hibernate, RESTful APIs, and SQL databases.
Java, Spring Framework, Spring MVC, Spring Boot, Hibernate, RESTful APIs, Oracle SQL, PostgreSQL, SQL Server
2mo
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Principal Solutions Engineer
Malvern, Pennsylvania, United States
HybridFull Time
5+ YOE5+ years software development experience in retail payments with expertise in POS integration, remote teamwork, Microsoft .NET Framework & Linux, C++/C#/Java, REST API and data exchange specifications.
Microsoft .NET Framework, Linux, C++, C#, Java, REST API
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