82 software framework developer jobs at 46 companies in Middletown, DE
2w
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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
2w
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SOFTWARE ENGINEER I
Camden, New Jersey, United States
$80k-$95k/yr OnsiteFull Time
1+ YOERequires 1–3 years of software development experience, Python, web frameworks, relational databases and SQL, APIs, cloud platforms, communication, analytical skills, and teamwork.
Python, FastAPI, Flask, React, PostgreSQL, SQL, Microsoft Azure, Azure Function Apps, Azure App Services, Azure Batch Processing, Snowflake, Azure Blob Storage, REST APIs, Git, CI/CD, Agile
2w
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SOFTWARE ENGINEER I
Camden, New Jersey, United States
$85k-$100k/yr OnsiteFull Time
1+ YOERequires 1–3 years of software development experience, Python, modern web frameworks, relational databases and SQL, cloud platforms, APIs, strong communication, and analytical problem-solving skills.
Python, FastAPI, Flask, React, PostgreSQL, Microsoft Azure, Azure Function Apps, Azure App Services, Azure Batch Processing, Snowflake, Azure Blob Storage, REST APIs, Git, CI/CD, ETL, SQL
2mo
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Staff Software Developer
Canada or Philadelphia
$170k-$220k/yr RemoteFull Time
7+ YOE7+ years software engineering experience; strong CS fundamentals, distributed systems, PostgreSQL, GraphQL, gRPC, SQL, Kubernetes, observability (DataDog, Bugsnag); comfortable with Elixir, Java, Rust, TypeScript; testing framework experience; mentoring skills.
Elixir, Java, Rust, TypeScript, GraphQL, gRPC, SQL, PostgreSQL, Kubernetes, DataDog, Bugsnag, ExUnit, RSpec, Jest, pytest, AI
11h
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Software Engineer II
Wilmington, Delaware, United States
$80k-$100k/yr HybridFull Time
3+ YOEBachelor's degree in computer science, engineering, or IT preferred; 3+ years of professional development with Java or Python; experience with databases, CI/CD, testing frameworks, deployments, and technical documentation.
Java, Python, CI/CD
1w
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Senior Software Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
5+ YOERequires 5+ years of software engineering experience, TypeScript and Node.js/Deno, REST APIs, Vue or comparable frontend frameworks, distributed systems, PostgreSQL, automated testing, cloud platforms, Docker, Kubernetes, and CI/CD.
TypeScript, Node.js, Deno, PostgreSQL, Vue, Vue.js, React, Angular, Vitest, Playwright, AWS, Azure, Docker, Kubernetes, Git, RabbitMQ, Kafka, AWS SQS, Terraform, CloudFormation
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
1mo
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Lead Software Engineer
Cedar Rapids or Denver or Philadelphia
$111k-$140k/yr HybridFull Time
5+ YOEBachelor's or equivalent, 5+ years Core Java, 4 years cloud (AWS) experience, expertise with Java frameworks, databases, microservices, CI/CD, frontend frameworks, and leadership/mentoring experience.
JAVA, OOD, OOP, Functional Programming, Spring Framework, J2EE Development, Service Oriented Architecture, Dependency Injection, MS Cosmos DB, Apache Cassandra, Amazon DynamoDB, AWS, EC2, ECS, S3, Kinesis, VMs, Blob, Data Factory, SQL Data warehouse, ARM Templates, Event Hubs, Visual Studio, Git/Bitbucket, Maven, Jenkins, Nexus, SQL Management Studio, Nunit, Ajax, AI SDLC, AWS AI services, API Gateways, Apache Camel, Swagger API, Zookeeper, Kafka, Spring Boot, Spring MVC, Entity Framework, Swagger, Odata, AutoMapper, Jenkins, Docker, OpenShift, Kubernetes, Angular, React, Vue.js, HTTP, HTML, JS, CSS
2w
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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
2w
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Software Engineer Sr - E3
King of Prussia, Pennsylvania, United States
$110k-$205k/yr OnsiteFull Time
3+ YOERequires JavaScript/Node or C#, modern web framework experience, GitLab pipelines, Agile scrum experience, and an active Top Secret clearance with SCI eligibility. Desired: 3+ years of front-end development.
JavaScript, Node, C#, Angular, React, Vue.js, Ember.js, GitLab, Jira, Version One, Confluence, HTML5, CSS3, Sass, TypeScript, Redux, MobX, NgRx, Context API, RxJS, Material UI, Ant Design, Bootstrap, Jest, React Testing Library, Karma, Jasmine
3mo
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Software Engineer 0
Annapolis Junction, Maryland, United States
OnsiteFull Time
0+ YOEActive Top Secret clearance with Poly; 0 years experience; Java in UNIX/Linux; Spring; RESTful services; JPA/Hibernate; JavaScript libraries; testing frameworks
Java, UNIX, Linux, Spring, REST, JPA, Hibernate, JQuery, Ext-JS, Dojo, JavaScript, Tomcat, Maven, Spring Security, MongoDB, JMS, Backbone JS, D3, Dimple, Groovy, Spock, Spring Boot, Spring MVC
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
3d
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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
3d
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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
2mo
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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
20h
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Front-End Software Developer – Modeling & Simulation / HITL
Aberdeen Proving Ground, Maryland, United States
$180k-$200k/yr OnsiteFull Time
Production front-end development with JavaScript or TypeScript frameworks, HTML, CSS, APIs, data-intensive interfaces, Git, testing, code review, and CI/CD; active TS/SCI clearance required.
JavaScript, TypeScript, React, Angular, Vue, HTML, CSS, REST APIs, WebSockets, Git, CI/CD, Python, C++, MATLAB/Simulink, ROS/ROS 2, Unreal Engine, Unity, Gazebo
2w
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Staff .Net Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
8+ YOERequires 8+ years of software engineering experience, full-stack development, C#, TypeScript, .NET, front-end frameworks, distributed systems, APIs, databases, technical strategy, and CI/CD expertise.
C#, TypeScript, .NET Framework, .NET 5+, Angular, React, Vue, AWS, Azure, Python, HL7, FHIR, EHR, HIPAA, SOC2, CI/CD
2mo
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Software Test Automation Engineer – Full Stack - (Remote)
Baltimore or United States
$55k-$70k/yr RemoteFull Time
3+ YOEU.S. work authorization and 3 of last 5 years residency, ability to attain Public Trust clearance, Bachelor’s in CS/Engineering, 3+ years software engineering, experience with .NET/C#, TypeScript/React/Next.js, SQL, automated testing frameworks, Git and Microsoft Azure.
.NET, C#, ASP.NET Core, TypeScript, JavaScript, React, Next.js, SQL, xUnit, NUnit, Jest, Cypress, GitHub Copilot, Cursor, Entity Framework Core, Dapper, RESTful Web APIs, Git, Microsoft Azure, Microsoft Azure DevOps, Microsoft Azure Cognitive Services, Microsoft Azure Functions, Microsoft Logic Apps, Microsoft Azure Kubernetes Service (AKS), Docker, Kubernetes, OAuth2.0, OpenID Connect