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61 senior react developer jobs at 23 companies in Lancaster, PA

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Senior Full Stack Developer - Vice President
New Castle, Delaware, United States
$126k-$189k/yr HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
6+ YOESenior full stack developer skilled in Java/Spring Boot and React.js with RESTful APIs, CI/CD, and cloud/containerization experience.
Java, Spring Boot, React.js, JavaScript (ES6+), HTML5, CSS3, RESTful APIs, Redux, Context API, Oracle, SQL, MongoDB, OpenShift, Kubernetes, Kafka, MQ, Git, CI/CD
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3mo
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Senior Software Engineer - Finance
Hummelstown, Pennsylvania, United States
OnsiteFull Time
Flagger Force
Flagger Force: Provides temporary traffic control and work zone safety services.
5+ YOE5-8 years software development with .NET; strong database, API, and security skills; finance domain knowledge.
C#, .NET Framework, .NET Core, MVC, WPF, React, SQL Server, PostgreSQL, APIs, Confluence
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2mo
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Lead Software Engineer-Full Stack/Spring Boot/React
Wilmington, Delaware, United States
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years of software engineering experience; full stack Java/Spring Boot; React; AWS; CI/CD; ability to lead technical direction.
Java, Spring Boot, React, AWS, Terraform, CI/CD, REST, Redux, Context API
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2w
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Senior AI Engineer
United States or Wilmington
$126k-$197k/yr RemoteFull Time
Chemours
ChemoursNYSE: CC: Manufactures specialty chemicals, refrigerants, and high-performance industrial fluoropolymers.
8+ YOEDegree in Computer Science/Engineering, 8+ years backend development with Python and JavaScript, 2+ years production GenAI systems experience, React/TypeScript UI skills, Pydantic proficiency, strong stakeholder communication.
Python, JavaScript, React.js, TypeScript, HTML, Pydantic, PyTorch, Azure, Azure Kubernetes, Office 365, GitHub
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3mo
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Senior SharePoint Developer (King of Prussia, PA, US, 19406)
King of Prussia, Pennsylvania, United States
$101k-$164k/yr OnsiteFull Time
Day & Zimmermann
Day & Zimmermann: Provides industrial, defense, and workforce solutions to global customers.
8+ YOE8+ years in SharePoint development; BA/BS required; design, develop, deploy SharePoint/M365 solutions; on-prem and cloud; mentor junior staff.
SharePoint 2016, SharePoint Subscription Edition, SharePoint Online, SPFx, C#, NET, JavaScript, TypeScript, React, HTML5, CSS3, PowerShell, Power Platform, Power Automate, Power Apps, Power BI, Microsoft Graph API, REST APIs, CSOM, GitHub
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Senior Dynamics CRM Developer
Malvern, Pennsylvania, United States
HybridFull Time
Vanguard
Vanguard: Provides mutual funds, ETFs, and investment management services.
5+ YOE5+ years working with Microsoft Dynamics 365 Sales and Microsoft Power Platform, Dataverse, Power Automate, CI/CD and ALM, JavaScript frameworks (Angular or React), security configuration, API integrations, Agile experience, undergraduate degree or equivalent.
Microsoft Dynamics 365 Sales, Microsoft Power Platform, Angular, React, Power Platform Pipelines, ALM, CI/CD, Microsoft Dataverse, Microsoft Power Automate, model-driven app, Github, APIs, Microsoft Dynamics 365 Customer Insights, Microsoft Dynamics 365 Marketing, Microsoft Dynamics 365 Field Service
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3w
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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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1mo
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Senior Full Stack Software Engineer
New Castle, Delaware, United States
HybridFull Time
Waters Corporation
Waters CorporationNYSE: WAT: Provider of analytical laboratory instruments and software.
5+ YOEBachelor's degree or equivalent, 5+ years building large-scale applications using C#, .NET stack and React/TypeScript; strong software engineering practices, database and multithreading knowledge, Agile experience.
C#, .NET, ASP.NET, RESTful Web API, EF Core, PostgreSQL, React, Typescript, Kubernetes, Docker, GitHub, GitHub Actions, SpecFlow, OWASP, PKI, X509 Certificates, TLS, SQL
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2mo
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Senior Software Engineer, STAR.UI (Mission Autonomy, Hybrid)
King of Prussia or Moorestown or New Jersey or Pennsylvania
$109k-$217k/yr HybridFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Bachelor's in engineering or CS required; experience with JavaScript/TypeScript, Angular/React/Node, Git, and DevOps tools (Docker/Podman, Kubernetes/Helm, GitLab/GitHub/Jenkins). Must be US citizen; Secret clearance required.
JavaScript, TypeScript, Angular, React, Node, Git, Docker, Podman, Kubernetes, Helm, GitLab, GitHub, Jenkins, REST, gRPC, Kafka, ActiveMQ (AMQ), ZeroMQ (ZMQ), Data Distribution Service (DDS), Zenoh, Rust, Go, Java, Istio, Linkerd, CUDA, Intel oneAPI, SYCL, NVIDIA TensorRT, Triton Inference Server, OnnxRuntime, SQL, MongoDB, GitOps
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1w
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Java J2EE Developer
Newark, Delaware, United States
$80k-$90k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
7+ YOE7+ years Java/J2EE experience, container/cloud expertise (Kubernetes/OpenShift/AWS/Azure), Spring/Spring Boot, SQL and Unix/Linux scripting, React/Angular UI experience, Agile development.
Java, J2EE, SOAP, REST, OpenShift, ReactJS, containers, Spring Boot, Kubernetes, AWS, Azure, Spring, Spring Integration, Cassandra, Kafka, MQ, NoSQL, Eclipse, IntelliJ, Splunk, Dynatrace, Autosys, Oracle, Microsoft SQL Server, Unix, Linux, Angular, JUnit, Sonar, Crucible, Microservices
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2w
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Software Engineer II
Exton or Philadelphia
HybridFull Time
Bentley Systems
Bentley SystemsNASDAQ: BSY: Software for designing, building, and operating global infrastructure.
5+ YOE5+ years frontend development with TypeScript and React, experience with 3D/web graphics (Cesium/WebGL/three.js) preferred, testing (Vitest/Jest, Playwright), agile/Scrum, strong communication, graduate degree or equivalent experience.
TypeScript, React, iTwin.js, Cesium, pnpm, Module Federation, Vitest, React Testing Library, Playwright, Jest, Azure DevOps, CI/CD, GitHub, GitHub Copilot, Git, WebGL, three.js
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1mo
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Senior Full Stack Developer - Vice President
New Castle, Delaware, United States
$126k-$189k/yr HybridFull Time
Citi
CitiNYSE: C: Global diversified financial services holding.
6+ YOEProficiency in Java/Spring Boot and React.js, experience building RESTful APIs and microservices, familiarity with Oracle/SQL/MongoDB, OpenShift/Kubernetes, Kafka/MQ, CI/CD and Git; bachelor's degree required; 6+ years preferred.
Java, Spring frameworks, Spring Boot, React.js, ES6+, HTML5, CSS3, RESTful APIs, Redux, Context API, Oracle, SQL, MongoDB, OpenShift, Kubernetes, Kafka, MQ, SDLC, Agile methodologies, DevOps, CI/CD, Git, GenAI, Large Language Models (LLMs), Webpack, Vite, Jest, Cypress
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3mo
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Software Engineer
Atlanta or Denver or New York or Albany or Baltimore or Boston or Greenville or Charleston or Columbia or Winston-Salem or Greensboro or Raleigh or Charlotte or Durham or Charlottesville or McLean or Houston or Huntsville or San Francisco or Walnut Creek or Irvine or San Diego or Glendale or Sunnyvale or Reno or Las Vegas or Nashville or Tucson or Phoenix or Washington or Wilmington
$72k-$121k/yr RemoteFull Time
Womble Bond Dickinson
Womble Bond Dickinson: Transatlantic law firm providing comprehensive legal services to businesses.
5+ YOE5+ years data engineering with Microsoft technologies; strong C#, .NET, Blazor, React, TypeScript; SQL Server/T-SQL; Azure Data Factory, Microsoft Fabric, Delta Lake; production AI/RAG experience; Git and Azure DevOps.
C#, .NET, Blazor, React, TypeScript, Microsoft Power Platform, Microsoft Power Apps, Microsoft Power Automate, Microsoft Dataverse, Azure Data Factory, Microsoft Fabric, Delta Lake, Dataflow Gen2, Azure SQL, Azure Synapse, SQL Server, T-SQL, SSRS, SSAS, Boomi, Azure AI Foundry, Microsoft Agent Framework, Copilot Studio, Microsoft Copilot, Microsoft Teams, Microsoft Office add-ins, Git, Azure DevOps
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1mo
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Software Engineer I
Reading or Tampa
OnsiteFull Time
Penske Truck Leasing
Penske Truck Leasing: Provides commercial truck leasing, rental, and vehicle maintenance services.
5+ YOEBachelor's in CS/CE or equivalent experience, 5+ years programming experience, full‑stack skills (React/Angular/JavaScript, Spring), relational DB design, Agile, CI/CD, troubleshooting, and strong communication.
Java, RPG, React, Angular, jQuery, HTML, JavaScript, CSS, Spring framework, Spring-MVC, myBatis, RESTful APIs, Agile, CI/CD, DevOps Tools
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3w
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CRM Developer
Cockeysville or Hunt Valley
$115k-$125k/yr HybridFull Time
Sinclair
SinclairNASDAQ: SBGI: Operates television stations and produces news and sports programming
5+ YOEBachelor's in CS/IS, 5+ years software engineering/CRM development (3+ years Dynamics 365), strong .NET/C#, SQL, JavaScript/TypeScript, Power Platform, Azure, REST/SOAP integrations, and collaboration skills.
Microsoft Dynamics 365 CRM, Microsoft Dataverse, Microsoft Power Platform, Microsoft Power Apps, Microsoft Power Automate, Microsoft Power BI, .NET, C#, SQL Server, T-SQL, JavaScript, TypeScript, HTML, CSS, REST APIs, SOAP, Azure Functions, Logic Apps, Service Bus, Azure DevOps, Git, Microsoft Graph, Microsoft Entra ID (Azure AD), Angular, React, CI/CD, Codex, ChatGPT, CoPilot, Foundry
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1w
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Sr. Software Developer
Mechanicsburg, Pennsylvania, United States
$100k-$105k/yr OnsiteContract
Connected Logistics
Connected Logistics: Provides IT and logistics services for government defense agencies.
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
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1mo
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Infrastructure Engineering, AVP
Kilkenny or Dublin or London or Krakow or Quincy or Boston or Princeton or Clifton or Austin or Kansas City or Berwyn
$90k-$158k/yr HybridFull Time
State Street
State StreetNYSE: STT: Provides investment servicing and management to institutional investors.
7+ YOESenior-level full-stack developer with strong Python (7+ yrs) and network engineering/automation (5+ yrs) experience; database integration, RESTful APIs, JSON/XML, Django and frontend (HTML/CSS/JavaScript/React) familiarity; Agile/Scrum experience; bachelor's degree preferred.
Python, Django, JSON, XML, HTML, Bootstrap, CSS, JavaScript, React, RESTful API, Scrum, SDLC
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1w
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Sr Software Engineer - Java
King of Prussia, Pennsylvania, United States
OnsiteFull Time
Fiserv
FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.
6+ YOE6+ years software delivery experience; strong Java and Spring Boot; experience with datastores, DevOps/CI/CD, Git; bachelor's degree or equivalent experience.
Java, Spring Boot, React, Kubernetes, Docker, Helm, Gradle, Git, GitLab CI, Linux, Windows CLI, CI/CD, GitOps
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1w
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Sr. AI Software Engineer
Owings Mills or Maryland or Colorado or Washington or Washington or New York or California
$121k-$258k/yr HybridFull Time
T. Rowe Price
T. Rowe PriceNASDAQ: TROW: Provides global investment management and retirement planning services.
5+ YOE5+ years software engineering experience; proficiency in Python, Java, or JavaScript; hands-on experience building and deploying AI/ML-enabled production solutions, cloud-native architectures, and containerized microservices; strong collaboration and product mindset.
Python, Java, JavaScript, React, Angular, HireVue
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1w
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Sr. AI Software Engineer
Owings Mills, Maryland, United States
$121k-$258k/yr HybridFull Time
T. Rowe Price
T. Rowe PriceNASDAQ: TROW: Global investment management firm providing funds and retirement services.
5+ YOEBachelor's/Master's in CS or equivalent, 5+ years software engineering with Java/Python/JavaScript, cloud-native and containerized microservices, production AI/ML experience, proficiency with Python and AI/ML frameworks, strong collaboration and product mindset.
Java, Python, JavaScript, React, Angular
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