Javascript Developer Jobs in Townsend, DE, US

1mo

Save

Mark Applied

Hide

1mo

Software Developer III

Aberdeen Proving Ground, Maryland, United States

OnsiteFull Time

Integral Federal: Provides digital transformation and intelligence services for federal agencies.

10+ YOETen years’ experience in design/development; strong HTML/CSS/JavaScript/XML; UX and visual design skills; experience with design tools and web development.

HTML, CSS, JavaScript, XML, Dreamweaver, Photoshop, PowerPoint

Save

Mark Applied

Hide

Salesforce Senior Developer

Wilmington or Cincinnati or Worthington

$90k-$121k/yr HybridFull Time

AAA Club Alliance: Provides roadside assistance, insurance, and travel services for members.

5+ YOE5+ years Salesforce development; Bachelor's or equivalent; Salesforce Platform Developer II; multiple tech skills including Apex, LWC, Visualforce, JSON, XML, JavaScript, SQL, Java, C#, C++, SOAP, AWS/Azure; multiple Salesforce certifications.

Apex, LWC, Visualforce, JSON, XML, JavaScript, SQL, Java, C#, C++, SOAP, AWS, Azure, GearSet

Save

Mark Applied

Hide

Software Engineer (665381)

Baltimore, Maryland, United States

$34-$59/hr OnsiteFull Time

Johns Hopkins Health System: Provides clinical care, medical research, and health education services.

4+ YOEDevelop, maintain, and support enterprise applications; four years of experience; strong in Java/C#/Python/JavaScript/TypeScript; Bachelor’s degree in CS or related field.

Java, C#, Python, JavaScript, TypeScript

Save

Mark Applied

Hide

Senior Application Developer

Philadelphia, Pennsylvania, United States

$84k-$135k/yr RemoteFull Time

University of Pennsylvania: Research university offering higher education and healthcare services.

3+ YOEBachelor in Computer Science or related field; 3-5 years application development; Java, JavaScript; Oracle SQL/PL-SQL; Ellucian Banner experience; SDLC and Agile; enterprise environments

Java, JavaScript, Oracle SQL, PL/SQL, HTML, CSS, REST, SOAP, Unix/Linux, Shell scripting, Ellucian Banner APIs, Page Builder

1mo

Save

Mark Applied

Hide

1mo

Senior Software Developer

Wilmington, Delaware, United States

HybridFull Time

Continental Finance Company: Markets and services credit cards for consumers with limited credit.

5+ YOE5+ years in software development; strong C#/.NET Core; AWS; SQL Server or PostgreSQL; REST APIs; distributed/microservices; React/JavaScript; Azure DevOps; secure coding practices.

C#, NET Core, React, AWS, SQL Server, PostgreSQL, REST APIs, Azure DevOps, JavaScript

Save

Mark Applied

Hide

dotCMS Developer

Philadelphia, Pennsylvania, United States

HybridFull Time

CapTech: Provides technology and management consulting services to large enterprises.

Experience with dotCMS, Java, HTML, CSS, JavaScript; RESTful APIs, CMS workflows; strong teamwork and communication.

dotCMS, Java, HTML, CSS, JavaScript, RESTful APIs, DevOps tools

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer

Malvern, Pennsylvania, United States

HybridFull Time

CubeSmartNYSE: CUBE: Owns and operates self-storage facilities across the United States.

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

1mo

Save

Mark Applied

Hide

1mo

1650 - Software Developer

Belcamp, Maryland, United States

$83k-$140k/yr OnsiteFull Time

Sigma Defense: Develops tactical communications and intelligence systems for defense.

10+ YOE10+ years in software development; 5+ years DoD software support; strong requirements analysis, architecture, and coding skills; Java, Python, C#, and JavaScript; ability to document software; U.S. citizen; Secret security clearance or higher; Bachelor's Science degree.

Java, Python, C#, JavaScript

1mo

Save

Mark Applied

Hide

1mo

Dynamics 365 Developer (Remote Opportunity)

Philadelphia, Pennsylvania, United States

RemoteFull Time

VetsEZ: Digital transformation and healthcare IT services for government agencies.

5+ YOE5+ years Dynamics 365 (Customer Service) development, customization, and integration; JavaScript, C#, .NET; Power Platform; Dynamics APIs; Dataverse; Azure tools.

JavaScript, C#.NET, Power Platform, Dynamics 365, Azure, APIs, Web Services, Dataverse, Power Apps, Power Automate

1mo

Save

Mark Applied

Hide

1mo

Lead Software Engineer - Observability Platform Cloud Developer

Wilmington or Columbus

OnsiteFull Time

JPMorgan ChaseNYSE: JPM: Global financial firm providing banking and investment management services.

5+ YOE6+ years of software engineering experience; strong cloud native development; proficiency in Java, JavaScript, React, Python; experience with Kafka, Kubernetes, Microservices, Terraform; CI/CD and automation; knowledge of financial IT systems.

Java, JavaScript, React, Python, Kafka, Kubernetes, Microservices, Terraform, Ansible, ServiceNow, Splunk, Oracle, DynaTrace

Save

Mark Applied

Hide

Senior Application Developer

Philadelphia, Pennsylvania, United States

$84k-$135k/yr RemoteFull Time

University of Pennsylvania: Private Ivy League research university providing higher education and research.

3+ YOEBachelor in Computer Science or related field; 3-5 years of application development in enterprise environments; experience with Ellucian Banner, Oracle SQL/PLSQL, Java/JavaScript; web tech, Unix/Linux, Python a plus; SDLC and Agile experience.

Java, JavaScript, HTML, CSS, REST, SOAP, Oracle SQL, PL/SQL, Python, Unix/Linux, Shell scripting, Ellucian Banner, Page Builder

Save

Mark Applied

Hide

Embedded Software Engineer

New Freedom, Pennsylvania, United States

$80k-$105k/yr OnsiteFull Time

Johnson ControlsNYSE: JCI: Provides integrated building technologies including HVAC, fire, and security systems.

3+ YOEBachelor's degree; 3+ years embedded software development; C/C++; HTML/CSS/JavaScript; Git/JIRA familiarity; U.S. citizenship or permanent residency required.

C/C++, HTML, CSS, JavaScript, Git, JIRA

2mo

Save

Mark Applied

Hide

2mo

Software Engineer

Annapolis Junction or Hanover

$50k-$290k/yr OnsiteFull Time

The Swift Group: Engineering and technology solutions for the national security community.

US citizen with active TS/SCI clearance; Linux proficiency; programming in Python/Java/C/C++/JavaScript; Git; container tech (Docker/Kubernetes); shell scripting; experience with CI/CD; strong security-focused software development.

Bash, Python, Java, C, C++, JavaScript, Git, Docker, containerd, Podman, Kubernetes, Ansible, FastAPI, React, MongoDB, PostgreSQL, RabbitMQ, Kafka, Elastic Stack, Prometheus, Grafana, Splunk, Jira, Confluence, Slurm, AWS

2mo

Save

Mark Applied

Hide

2mo

Senior Full Stack Engineer

Austin or Ann Arbor or Scottsdale or Wayne

$145k/yr HybridFull Time

DaySmart: Software for managing service-based business operations and scheduling.

5+ YOE5+ years web development with PHP/JavaScript; Laravel experience; strong communication; problem-solving; capable in fast-paced environments.

PHP, JavaScript, Laravel, Vue.js, React, AlpineJS, jQuery, REST API, AWS

Save

Mark Applied

Hide

Senior Full Stack Developer

Baltimore, Maryland, United States

$133k-$189k/yr RemoteFull Time

Index Analytics: Delivers data strategy and IT solutions to federal health agencies.

6+ YOE6+ years full stack development; US government access or badge eligibility; Bachelor's degree or equivalent; strong JavaScript, Python; React; AWS; Git; Agile; government experience a plus.

JavaScript, Python, React, Node.js, TypeScript, AWS, Git, Next.js, PostgreSQL, DynamoDB, Redis, Lambda, S3, API Gateway, Jenkins, Cloud9, CI/CD

1mo

Save

Mark Applied

Hide

1mo

Software Engineer(Front-End/React), Senior Advisor

Laurel, Maryland, United States

$146k-$234k/yr OnsiteFull Time

Peraton: National security and mission-critical government technology services provider.

14+ YOE14+ years SWE experience; BS in CS/Engineering/Math/Statistics; strong React and JavaScript; active TS/SCI with poly; front-end development

React, JavaScript, Redux, TypeScript

Save

Mark Applied

Hide

Software Engineer Sr - Level 3

King of Prussia, Pennsylvania, United States

OnsiteFull Time

Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.

Software development with Java/JavaScript; CI/CD with GitLab/Jenkins; large-scale projects; unit/integration/end-to-end testing; US Citizenship required and ability to obtain TS/SCI clearance.

Java, JavaScript, GitLab, Jenkins, SpringBoot, Quarkus, Node.js, Express, Python, Helm, Git, Docker, Kubernetes, Rancher, CI/CD

Save

Mark Applied

Hide

Principal Software Engineer

Columbus or Chadds Ford or Plano or Draper or New York or Wilmington

$184k-$492k/yr HybridFull Time

Bread FinancialNYSE: BFH: Provides credit cards, consumer loans, and personal savings accounts.

15+ YOE15+ years in software development across full stack, frontend and backend; BS in CS or related field; strong Agile/DevOps focus; experience with Java, JavaScript, AWS, Azure, React, Angular, Flutter; leadership experience.

Agile Methodology, DevOps, Java, JavaScript, Microsoft Azure Functions, Microsoft Azure SQL, Full Stack Development, Amazon Web Services (AWS), React.js, Angular, Flutter

Save

Mark Applied

Hide

Software Engineer

Alexandria or Edgewood

HybridFull Time

BryceTech: Engineering and analytics services for aerospace and defense agencies.

5+ YOESecret clearance preferred; proficient in Java, JavaScript, SQL; BS in CS or software engineering; 5–7 years coding experience; strong communication and teamwork.

Java, JavaScript, SQL

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer (Philadelphia, PA, US)

Philadelphia, Pennsylvania, United States

OnsiteFull Time

Bentley Systems: Develops software for designing, building, and operating global infrastructure.

5+ YOE5+ years as a software developer; expert in JavaScript/TypeScript, Node.js and React; full-stack design knowledge; experience with web/desktop applications; familiar with APIs, security, Git.

JavaScript, TypeScript, React, Node.js, Git, APIs, Web security

1mo

Save

Mark Applied

Hide

1mo

Senior Java Developer

Chicago or Morristown or Wilmington

$79k-$138k/yr HybridFull Time

W. R. BerkleyNYSE: WRB: Provides commercial property, casualty, and specialty insurance and reinsurance.

4+ YOE4+ years enterprise Java, Guidewire InsuranceNow experience, REST/SOAP APIs, SQL, JavaScript/jQuery/Velocity; full SDLC; Agile/Waterfall; BA/Business stakeholder collaboration.

Java, Guidewire InsuranceNow, REST API, SOAP API, SQL, JavaScript, jQuery, Velocity

Save

Mark Applied

Hide

Software Developer

Chicago or Philadelphia or Orlando or Atlanta or Cleveland or Columbus or Cincinnati or Los Angeles or Dallas or Denver

$110k-$150k/yr HybridFull Time

BakerHostetler: Provides legal counsel and litigation services for corporate clients.

5+ YOE5+ years in software development; React, TypeScript, cloud platforms; API design; Azure; DevOps; AI integration.

React, TypeScript, JavaScript, HTML5, CSS3, Node.js, Python, C#, GraphQL, Azure, Git, OpenAI

2mo

Save

Mark Applied

Hide

2mo

Sr. Full Stack Engineer - Mobile - Xumo

Philadelphia or Irvine

$111k-$206k/yr HybridFull Time

ComcastNASDAQ: CMCSA: Provides broadband, wireless, video, and media entertainment services.

7+ YOE5+ years in enterprise web/mobile development; proficiency in JavaScript (React Native, Node.js); knowledge of AWS/GCP, CI/CD; video tech experience; strong collaboration and leadership skills.

JavaScript, React Native, Node.js, AWS, GCP, CI/CD, Concourse/Circle CI/Jenkins, Video Streaming, Widevine, PlayReady, FairPlay

1mo

Save

Mark Applied

Hide

1mo

CNO Software Engineer

Annapolis Junction or Annapolis

$113k-$257k/yr OnsiteFull Time, Part Time

Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients

8+ YOE8+ years software and embedded development; TS/SCI with polygraph; Bachelor's in CS/CE/EE/Math/Physics; experience with C/C++, Golang, JavaScript, Python, or Ruby; Linux; Git; scripting; vulnerability analysis; network protocols; FPGA/ASIC (nice); RF/Signals (nice).

C, C++, Golang, JavaScript, Python, Ruby, Linux, Git, Wireshark, tshark, Bash, FPGA, ASIC

2mo

Save

Mark Applied

Hide

2mo

CPE SETA_Software Engineer III (Graphics Support, Web Designer)

Aberdeen Proving Ground, Maryland, United States

$120k-$130k/yr HybridFull Time

People Technology and Processes: Professional services and technical support for federal government agencies.

10+ YOEBachelor's degree in CS/Design; 10+ years in web design and development with HTML, CSS, JavaScript; Photoshop/Dreamweaver; able to substitute associate degree with 12+ years.

HTML, CSS, JavaScript, Python, PHP, SQL, Photoshop, Dreamweaver, PowerPoint, UNIX, Windows

2mo

Save

Mark Applied

Hide

2mo

Junior Front End Developer

Baltimore, Maryland, United States

$70k/yr HybridFull Time

The Agora Companies: Publishes specialized financial, health, and lifestyle information and products.

1+ YOEHTML, CSS, JavaScript experience required; 1-2 years frontend experience preferred; responsive design knowledge; degree in related field a plus but not required.

HTML, CSS, JavaScript, Bootstrap

1mo

Save

Mark Applied

Hide

1mo

Embedded Developer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Tiber Technologies: Providing specialized engineering and security services for federal missions.

Must be a U.S. citizen; active clearance with a polygraph; Bachelor's degree in CS, engineering, or related field; embedded/low-level development experience preferred

Linux, Windows, Embedded systems, Ghidra, C, C++, Python, Rust, Go, Git, Subversion, Jira, Confluence, PowerShell, Bash, Assembly, Java, JavaScript

2mo

Save

Mark Applied

Hide

2mo

Frontend Prototype Developer

Philadelphia, Pennsylvania, United States

$111k-$149k/yr RemoteFull Time

NBME: Develops standardized examinations for medical students and professionals.

8+ YOE8+ years of professional software development experience; strong front-end, rapid prototyping, and research-oriented software development.

Angular, TypeScript, JavaScript, HTML, CSS, Shiny, AWS, Lambda, S3, DynamoDB, CDK, Node.js

1mo

Save

Mark Applied

Hide

1mo

Web Developer

Annapolis Junction, Maryland, United States

$144k-$210k/yr HybridFull Time

Boeing Intelligence & AnalyticsNYSE: BA: Delivers intelligence, analytics, and cyber solutions for national security.

8+ YOEActive TS/SCI clearance with polygraph; 8+ years web development experience; BS in related field or equivalent experience; strong front-end and API integration skills.

HTML, CSS, JavaScript, React, Angular, Vue, REST API, Jira, Confluence, 508 accessibility, AWS, Docker, Kubernetes, Node.js, Java, Linux scripting, Git, Frontend testing

Save

Mark Applied

Hide

Salesforce Developer II

Philadelphia, Pennsylvania, United States

$108k/yr HybridFull Time

Intealth: Provides global medical credentialing and healthcare education quality services.

3+ YOE3+ years Salesforce development; Salesforce Platform Developer I cert; Bachelor's in CS or equivalent; Agile/Scrum experience; MuleSoft experience preferred.

Salesforce, Apex, Visualforce, Lightning Components, JavaScript, HTML, CSS, SQL, GitHub, Bitbucket, TFS, Jenkins, Salesforce DX, ANT, Service Cloud

Save

Mark Applied

Hide

Summer 2026 Software Developer Internship

Annapolis Junction, Maryland, United States

$26-$35/hr OnsiteFull Time

GDITNYSE: GD: Delivers IT and mission services to government agencies.

0+ YOE0+ years of related experience; proficiency in Python, Java, C/C++, Rust, JavaScript/TypeScript; US citizenship required; software development best practices; teamwork.

Python, Java, C/C++, Rust, JavaScript/TypeScript

2mo

Save

Mark Applied

Hide

2mo

Software Developer (55390)

Aberdeen, Maryland, United States

$100k-$110k/yr OnsiteFull Time

DataPath: Manufactures satellite communication terminals and provides ground system solutions.

10+ YOEBachelor's degree and 10+ years in software development; DoD experience preferred; US citizen with active secret clearance.

Java, Python, C#, JavaScript

2mo

Save

Mark Applied

Hide

2mo

Senior Software Developer

New York City or Boston or Chicago or Los Angeles or San Francisco or Denver or Seattle or Philadelphia or Dallas or Detroit or Houston

HybridFull Time

HDR: Global firm providing architecture, engineering, and infrastructure consulting services.

6+ YOESenior software developer with 6+ years in web/application development; lead features, CI/CD, Azure; strong JS/TS, Vue/React; API design; AI exposure.

JavaScript, TypeScript, Vue, React, Next.js, HTML, CSS, Git, Azure DevOps, Jira, Node.js, .NET Core, PostgreSQL, MongoDB, Azure, Vercel, OpenAI

1mo

Save

Mark Applied

Hide

1mo

Lead Software Engineer (Site Reliability)

Malvern, Pennsylvania, United States

HybridFull Time

Vanguard: Provides mutual funds, ETFs, and investment management services.

Experience in distributed systems, cloud (AWS), Java/JavaScript, OpenTelemetry, microservices, observability, and incident response.

Java, JavaScript, Python, OpenTelemetry, AWS, Microservices, Observability

Save

Mark Applied

Hide

Senior Software Developer

Richmond or Baltimore or Nashville or Mechanicsburg or Raleigh

$105k-$145k/yr HybridFull Time

GFT: Global firm providing engineering and infrastructure construction services.

5+ YOESenior software developer with 5+ years of experience in full-stack design and geospatial applications.

SQL, C#, Java, Python, HTML, CSS, JavaScript, ASP.Net Core, Angular, React, Vue.js, Esri software

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer - .Net

Baltimore, Maryland, United States

$100k-$125k/yr HybridFull Time

InVita Healthcare Technologies: Software for blood, donation, and forensic life-saving operations.

6+ YOE6+ years building production web apps; strong C#/.NET; SQL Server; JavaScript/TypeScript; Vue.js; CI/CD; Bachelor’s in CS.

C#, .NET, SQL Server, JavaScript, TypeScript, Vue.js, jQuery, Bootstrap, xUnit, CI/CD, Confluence, Docker

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer

Omaha or Berwyn or Hebron or Lehi

$108k-$170k/yr HybridFull Time

Orion Advisor Solutions: Provides integrated software and investment solutions for financial advisors.

5+ YOESenior .NET engineer with 5+ years' experience; ASP.NET Web API, EF, C#, REST/Web Services, SQL Server; AngularJS/Javascript/CSS/HTML; strong SDLC, OO design, problem solving, and collaboration.

ASP.NET Web API, Entity Framework, C#, Restful Services, Web Services, SQL Server, AngularJS, JavaScript, CSS, HTML

Save

Mark Applied

Hide

Full Stack Palantir Foundry Developer

Arlington or Seattle or Denver or Chicago or Ridley Park or El Segundo or Saint Louis or Seattle

$149k-$215k/yr HybridFull Time

BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.

5+ YOEBachelor's degree in CS/Software/Data Eng or related field; 5+ years full-stack software development; 5+ years React/JavaScript/TypeScript; 3+ years ontology/taxonomy development; 5+ years web development with ReactJS/Redux/JS/TS/HTML/CSS

Palantir Foundry, Workshop, Slate, React, TypeScript, Python, PySpark, REST, JDBC, S3/Parquet, Git

2mo

Save

Mark Applied

Hide

2mo

Junior Software Engineer

Baltimore, Maryland, United States

OnsiteFull Time

Baltimore Orioles: Professional baseball team providing sports entertainment and events.

Bachelor’s degree in Computer Science or Information Systems; experience with Python, Java, C++, Ruby, or JavaScript; experience leading all SDLC phases; data integration experience; ability to gather requirements and work with users; available for non-traditional hours.

Python, Java, C++, Ruby, JavaScript, SQL, AWS S3, AWS Lambda, AWS SQS, Django, R