React Developer Jobs in Northampton, PA, US

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Lead Developer

Allentown or Louisville or Providence

HybridFull Time

PPL CorporationNYSE: PPL: Provides electricity and natural gas to US utility customers.

5+ YOELead Developer with 5+ years experience; proficient in C#, JavaScript/TypeScript, frontend frameworks (Angular/React), SQL; experience with APIs and microservices; hybrid role in Allentown/ Louisville/ Providence.

C#, Java, TypeScript, Angular, React, SQL, Microservices, Cloud, APIs

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Software Engineer

Center Valley, Pennsylvania, United States

OnsiteFull Time

Shift4NYSE: FOUR: Provides integrated payment processing and point-of-sale solutions for merchants.

3+ YOEMid-level frontend/backend developer with 3+ years experience in JavaScript/React/TypeScript, Node.js, NextJS; solid CI/CD, testing, and code review skills.

JavaScript, React, CSS, HTML, Node.js, NextJS, Typescript, Git, Tailwind CSS, Mocha, Xunit

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Senior Specialist, Full Stack Developer, Clinical Engineering & Operations

Princeton, New Jersey, United States

$78k-$95k/yr OnsiteFull Time

Bristol Myers SquibbNew York Stock Exchange: BMY: Develops and distributes innovative medicines for serious diseases.

2+ YOE2+ years software development; Bachelor's in CS or related; Python/Java; React; AI concepts; AWS; SQL/NoSQL.

Python, Java, React, OpenAI, LangChain, AWS, Bedrock, SageMaker, Lambda, S3, DynamoDB, SQL, NoSQL

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Fullstack Software Engineer Staff - FULL TIME REMOTE

Colorado Springs or Helendale or Huntsville or King of Prussia or Littleton

$114k-$201k/yr RemoteFull Time

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

8+ YOE8+ years software development; React/Angular, TypeScript/JavaScript, C++/Qt or C#, CI/CD; SAFe/Agile; remote work experience.

React, Angular, TypeScript, JavaScript, C++, Qt, C#, HTML, CSS, Redux, NgRx, WebGL, Three.js, CI/CD, GitLab CI, Jenkins, Azure DevOps, Kafka, MQTT, AWS, REST, GraphQL

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Full Stack Software Engineer, Vice President – Corporate Functions Technology

Quincy or Boston or Princeton or Clifton or Toronto

$125k-$215k/yr OnsiteFull Time

State StreetNYSE: STT: Provides financial services and asset management for institutional investors.

7+ YOE5+ years enterprise full-stack web development; React/JS/TS, Node.js, APIs, cloud, security/compliance, AI integration.

React, JavaScript, TypeScript, HTML5, CSS3, Node.js, Python, Java, SQL, NoSQL, AWS, Azure, Kubernetes, Databricks, Git, CI/CD, Infrastructure as Code

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Senior Software Engineer - Full Stack

New York or Holmdel or Bethlehem

$95k-$156k/yr HybridFull Time

Guardian Life: Provides life, disability, dental, and vision insurance products.

6+ YOE6-8 years software development; 3+ years cloud native/SOA (AWS); 2+ years IaC (Terraform); API development with Java/Spring Boot/Node/.NET/Python; web tech with React/Angular/Typescript; AWS, Docker, Kubernetes; databases MySQL/PostgreSQL/SQL Server; CI/CD tools; microservices; collaboration with stakeholders.

Java, Spring Boot, Node.js, DOTNET, Python, React, Angular, TypeScript, AWS, Docker, Kubernetes, MySQL, PostgreSQL, SQL Server, Terraform, GitHub, Jenkins, Artifactory, Microservices

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Full Stack Developer

Wilkes Barre or Conshohocken or Parsippany or Alpharetta

$78k-$180k/yr HybridFull Time

Berkshire Hathaway GUARD Insurance Companies: Provides property and casualty insurance products to small businesses.

5+ YOE5+ years in software development; 3+ years with C#/.NET; 3+ years with modern front-end frameworks; strong API, security, and Azure experience.

C#, NET, Azure, React, Angular, Vue.js, HTML, CSS, JavaScript, TypeScript, SQL, Git, OpenAPI

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Principal Software Developer

Pittston, Pennsylvania, United States

$120k-$155k/yr HybridFull Time

Berkshire Hathaway Direct Insurance CompanyNYSE: BRK.B: Provides direct commercial insurance for small business owners.

10+ YOE10+ years of software development experience in C#/.NET; senior technical role; RESTful APIs; cloud services (Azure); monolith and microservices; CI/CD; strong communication.

C#, .NET, Azure, REST APIs, CI/CD, TypeScript, Angular, React

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Staff Software Engineer- Python

Oaks, Pennsylvania, United States

OnsiteFull Time

RevSpring: Provides patient engagement and payment solutions for healthcare providers.

8+ YOE8+ years OOP with Python; 8+ years SQL; 8+ years Git; Bachelor's; skilled in JS/TS/React/Node/Python; cloud (AWS/Azure/GCP); Docker; security basics.

JavaScript, TypeScript, React, Node, Python, Flask, AWS, Azure, GCP, Pulumi, Terraform, Docker, TCP/IP

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Sr Software Developer

Philadelphia or Wayne

RemoteFull Time

RadianNYSE: RDN: Provides mortgage insurance and real estate risk management services.

5+ YOEBachelor's degree in CS or related field and 5 years of .NET web development with C#, EF, ASP.NET; experience with SQL Server/Oracle, REST/SOAP, XML/JSON; CI/CD, logging, security tools, Agile; strong problem solving and collaboration.

C#, Entity Framework, ASP.NET, Bootstrap, React, SQL Server, Oracle, REST, SOAP, XML, JSON, Log4Net, Serilog, New Relic, Splunk, Snyk, Veracode, Jenkins, Copado, Git, IIS, Jira, Rally, Visual Studio, VS Code, Active Reports, NUnit, MSTest, Qualtrics, Google Analytics, BizTalk, Boomi, SharePoint

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UI/UX Engineer

Princeton, New Jersey, United States

$94k-$113k/yr OnsiteAll Commitments Available

NIKSUN: Sells network security and performance monitoring hardware and software.

Deep UI/UX expertise with modern web tech, mentorship, and leadership to drive frontend product design and development.

HTML5, CSS3, JavaScript, React, Vue.js, Angular, Figma, Git, Webpack, Vite, Jest, Cypress, AWS, Azure, GCP, CI/CD, REST APIs

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Software Developer - Hybrid (Princeton, NJ, US, 08540)

Princeton, New Jersey, United States

$83k-$138k/yr HybridFull Time

NRG EnergyNYSE: NRG: Provides electricity generation, retail power, and smart home services.

1+ YOE1–5 years .NET/web development; SQL Server, Dapper, EF; React.js; AI services; energy trading exposure preferred.

C#/.NET, React, SQL Server, Dapper, Entity Framework, RESTful APIs, Git, CoPilot/Cursor/Claude

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Full Stack Engineer

Boston or Princeton

$140k-$155k/yr HybridFull Time

RxSense: Provides software platforms for pharmacy benefits and prescription savings.

5+ YOESenior software engineer with 5+ years of web app development in C#/ .NET, full stack experience, AWS, and modern front-end tech.

C#/.NET, .NET Core, MVC, WebAPI, IIS, JavaScript, React, Angular, HTML, CSS, AWS, EC2, ALBs, RDS, Beanstalk, API Gateway

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Forward Deployed Software Engineer (FDE)- Python

Chicago or Webster or Allentown or St. Petersburg or High Point or West Palm Beach or Irving or Tempe or Phoenix

$134k-$210k/yr HybridFull Time

PaychexNASDAQ: PAYX: Provider of integrated payroll, HR, and benefits outsourcing solutions.

7+ YOEBachelor's in computer field or equivalent; 7+ years experience; strong Python/Django, React, AWS; embedded systems; API design; customer-facing engineering; excellent communication.

Python, Django, React, AWS

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Principal Software Engineer

Dresher or Philadelphia

OnsiteFull Time

Ascensus: Administers tax-advantaged retirement and education savings plans.

Bachelor's degree in computer science or engineering; strong technical leadership; AI tooling experience; hands-on software development; Agile experience; excellent problem-solving and communication skills.

C, C++, Python, Apache, Nginx, Redis, jQuery, PowerShell, React, Docker, Kubernetes, CI/CD, TDD, Agile

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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: 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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Engineer Lead

Newtown, Pennsylvania, United States

$126k-$135k/yr RemoteFull Time

Law School Admission Council: Administers the LSAT and facilitates law school admissions processes.

5+ YOELead engineer with Generative AI experience; strong agile leadership; full-stack expertise; AI enablement and GitHub Copilot governance; Azure/OpenAI knowledge; RAG and responsible AI practices.

Git, GitHub Copilot, Azure DevOps, Azure, OpenAI APIs, LangChain, Semantic Kernel, Pinecone, Chroma, pgvector, React, C# .NET, SQL, Oracle, Cosmos DB

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Sr Quality Engineer

King of Prussia, Pennsylvania, United States

OnsiteFull Time

FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.

5+ YOE5+ years automated testing of web apps; Proficient in Python, JavaScript, or TypeScript; Playwright or Selenium; Cucumber; CI/CD with Jenkins or GitLab; API testing with Postman; strong problem-solving and communication in Agile

Playwright, Selenium, Cucumber, SQL, NoSQL, Locust, Jenkins, GitLab, Postman, Confluence, Prometheus, Grafana, Python, JavaScript, TypeScript, React, Flutter

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Lead, Software Engineer - Salesforce

Newark or Portland or Fort Washington or Washington Street, Newark

$134k-$220k/yr OnsiteFull Time

Prudential FinancialNYSE: PRU: Provides insurance, investment management, and retirement services globally.

Lead Software Engineer - Salesforce with strong DevOps, security, and Salesforce expertise; proficient in Python/Java/JS; agile, collaborative leader.

Salesforce, Python, Java, JavaScript, React, Spring Boot, Node.js

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Staff AI/ML Engineer (Large Language Model) (TS/SCI) {S}

King of Prussia, Pennsylvania, United States

OnsiteFull Time

ARKA Group: Provides advanced space technology and optical systems for national security.

8+ YOELead multidisciplinary AI/ML efforts; 8+ years in software/data roles with LLM experience; TS/SCI clearance; strong Python and ML libraries; experience with LLM deployment and RAG.

Python, NumPy, Pandas, Polars, scikit-learn, Git, GitLab, Bitbucket, Weaviate, Pinecone, pgvector, LangChain, DSPy, Microsoft Agent Framework, AWS, llama.cpp, vllm, tgi, ReAct

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Advanced Software Engr

Fort Washington, Pennsylvania, United States

OnsiteFull Time

HoneywellNASDAQ: HON: Manufactures aerospace products, building technologies, and industrial control systems.

5+ YOE5+ years software engineering; AI/data-driven integration; strong in C++, C#, Java, Python, or HTML/React; experience with Docker and Kubernetes.

Docker, Kubernetes, C++, C#, Java, Python, HTML, React

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Technology Consultant 2

Boston or Princeton

HybridFull Time

InfosysNYSE: INFY: Provides IT consulting, software development, and business outsourcing services.

Core Java, microservices, REST API, Git, testing (JUnit/Mockito), Spring Boot, React is a plus; Bachelor's degree; relocation/travel willingness; US work authorization.

Java, Spring, Spring Boot, REST API, Git, JUnit, Mockito, React, Oracle, PL/SQL

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Staff AI/ML Engineer (Large Language Model) (TS/SCI) {S}

King Of Prussia, Pennsylvania, United States

OnsiteFull Time

ARKA: Develops advanced optical systems and space-based sensing technologies.

8+ YOE8+ years in software or data science; strong Python; LLM experience; TS/SCI clearance.

Python, NumPy, Pandas, Polars, scikit-learn, Git, GitLab, Bitbucket, LangChain, DSPy, Weaviate, Pinecone, OpenAI, Bedrock, llama.cpp, vllm, ReAct, PEFT, CUDA, CuPy, Numba, CuSignal, CuDF, AWS, EC2, S3, Lambda

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Senior Manager, Software Development

Princeton or Utrecht or Copenhagen

$132k-$197k/yr HybridFull Time

GenmabNASDAQ: GMAB: Develops antibody-based medicines to treat cancer and serious diseases.

8+ YOE8+ years in full-stack software development with integration, CI/CD, data enablement, and security focus.

React, Angular, Vue.js, Node.js, Python, Java, Informatica IICS, REST, Docker, Kubernetes, GitHub, GitLab, Terraform, CloudFormation, CDK

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Technical Architect (Radnor, PA, US)

Radnor, Pennsylvania, United States

HybridFull Time

RS GroupLondon Stock Exchange: RS1: Distributes industrial and electronic products and technical solutions.

10+ YOE10+ MgmtMaster’s degree in Computer Science or related; 10+ years in product leadership; expertise in JavaScript, TypeScript, React, Vue; distributed systems; cloud (Azure/AWS); analytics; API design; security; leadership and mentorship.

JavaScript, TypeScript, React, Vue, AWS, Azure, GraphQL, C#, ASP.NET, SQL, NoSQL, Elasticsearch, Amplitude, Google Analytics

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Associate Principal Consultant

North Wales, Pennsylvania, United States

OnsiteFull Time

Jade Global: Provides IT consulting and enterprise software implementation services.

4+ YOEBachelor’s degree plus 4 years of experience in development and architecture; strong .NET, Azure, frontend frameworks, and cloud integration skills.

.NET, Azure, React, Next.js, Angular, HTML, CSS, JavaScript, TypeScript, jQuery, Entity Framework, REST APIs, SQL Server, MySQL, MongoDB, Salesforce APIs, Git, CI/CD, SSRS, SSIS

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SAP iXP Intern - Security AI & Automation Development (Newtown Square PA) (Newtown Square, PA, US, 19073)

Newtown Square, Pennsylvania, United States

$15-$62/yr HybridMultiple Commitments Available

SAPFrankfurt Stock Exchange: SAP: Sells enterprise resource planning and business management software solutions.

Pursuing or has completed a degree in computer science or related field; hands-on with Python, GoLang; experience with Docker, Kubernetes; familiarity with ML frameworks; strong problem solving and collaboration; internship/entry-level acceptable.

Python, GoLang, Docker, Kubernetes, React, SAP UI5

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Lead AI Solutions Architect - Full Stack

Princeton or Glen Allen or Coppell or Waltham or Philadelphia or Riverwoods or New York City or Chicago or Houston

$129k-$226k/yr HybridFull Time

Wolters KluwerEuronext Amsterdam: WKL: Provides professional information and software solutions for specialized industries.

10+ YOELeadership-focused AI solutions architect with 10+ years in full-stack engineering, GenAI/Agentic AI, data science, AI/ML, and applied AI engineering; proven leadership and mentoring experience.

Python, FastAPI, Angular, React, LangChain, LlamaIndex, SQL, NoSQL, Azure, AWS

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Specialist Programmer

Austin or Bridgewater or Charlotte or Phoenix or Raleigh or Richardson

$90k/yr OnsiteFull Time

InfosysNYSE: INFY: Provides global IT consulting and digital transformation services.

0+ YOEBachelor's degree or equivalent; strong programming knowledge across listed tech stacks; willingness to relocate; campus hiring assessment.

Java, Spring Boot, Microservices, Angular, React, Docker, Kubernetes, Node.js, ExpressJS, MongoDB, Python, PySpark, Hadoop, Spark, Kafka, Airflow, Beam, LangChain, NLP