React Developer Jobs in Nazareth, PA, US

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Senior Full Stack Developer (React)

New Hyde Park or Moline or Hartford or Framingham or West Palm Beach or Norcross or Chicago or Milwaukee or Baltimore or Piscataway or United States

$125k-$150k/yr RemoteFull Time

Parts Authority: Distributes automotive and truck replacement parts to the aftermarket industry.

5+ YOE5+ years full-stack production experience; Python (FastAPI/Flask) and React (TypeScript); AI/ML integration; Kafka; PostgreSQL; Redis; strong communication.

Python, FastAPI, SQLAlchemy, Pydantic, React, TypeScript, Tailwind, Redis, PostgreSQL, Kafka, Databricks, MLflow, Docker, Kubernetes, GitHub Actions, Terraform, ODBC, Data Queues, WebSockets, FastAPI, RH other

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UI Developer

Whippany, New Jersey, United States

$161k-$161k/yr HybridFull Time

BarclaysLondon Stock Exchange: BARC: Global bank providing retail, corporate, and investment financial services.

3+ YOEExperience designing and developing UI using React and TypeScript; collaborative, secure coding practices, and unit testing.

React, TypeScript, Unit Testing, CI/CD

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2mo

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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Application Developer - 6247743

Bentonville or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Beaverton or Nashville or Detroit or San Diego

$44-$54/hr RemoteFull Time

AccentureNYSE: ACN: Global provider of management consulting and technology services.

2+ YOE2+ years IT experience; 1.5+ years Spring Boot; 1+ year React/React Native; High School Diploma/GED

Spring Boot, React, React Native, Apache Kafka, Microservices, Azure SQL, Cosmos DB

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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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Lead Full Stack Java Developer - Vice President

Rutherford, New Jersey, United States

$142k-$213k/yr HybridFull Time

CitiNYSE: C: Providing global banking, investment, and wealth management services.

6+ YOESix+ years in software development with Java, React, Spring Boot; microservices, cloud, CI/CD; Oracle DB; Agile; strong full‑stack capabilities.

Java, JavaScript, React, Spring Boot, Oracle, Docker, Jenkins, OpenShift, AWS, Maven, Gradle, SQL, PL/SQL, REST, GraphQL

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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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Salesforce Software Engineer II

Hamilton, New Jersey, United States

$110k-$140k/yr HybridFull Time

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

2+ YOE2+ years software development; Salesforce Apex; Salesforce, Agentforce, Datacloud; GitHub, CI/CD, Agile/Scrum; Java; AWS; SF ISV; REST APIs; microservices; JavaScript/React; Lightning Web Components; observability; debugging; architecture.

Java, Salesforce Apex, SFDC, Agentforce, Datacloud, GitHub, CI/CD, Agile/Scrum, SFDX, SF CLI, AWS, REST APIs, JavaScript, React, Lightning Web Components, observability

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Full Stack Python Developer

Berkeley Heights, New Jersey, United States

OnsiteFull Time

Orion Innovation: Provides digital transformation, software engineering, and cloud services.

5+ YOE5+ years production code experience; Python; Django/Rails/Laravel; React; Bachelor's degree in CS or Engineering or equivalent; collaborate with product teams; build scalable applications; write unit/integration tests.

Python, Django, React, Rails, Laravel, Unit testing, Integration testing, Web development

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Java Fullstack Developer (New York, NY, US)

Whippany, New Jersey, United States

$68k-$109k/yr OnsiteFull Time

CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.

Experience with Java, Spring, REST microservices, Kafka/AWS, DevOps CI/CD, and React/Angular in financial services domain.

Java, Spring, Kafka, AWS, Docker, Kubernetes, GitLab, Jenkins, Prometheus, Grafana, ELK, React, Angular, OAuth2, JWT, REST, RESTful APIs

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2mo

Staff Frontend Engineer, DC Infrastructure Tooling

Livingston or New York or Bellevue or Sunnyvale or Livingston

$188k-$275k/yr HybridFull Time

CoreWeaveNasdaq: CRWV: Cloud platform providing GPU infrastructure for AI workloads

7+ YOE7+ years frontend engineering with TypeScript and React; high-performance, data-dense UIs; infrastructure domain experience; strong communication and ownership.

TypeScript, React, GraphQL, REST APIs, WebGL, Virtualization

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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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1mo

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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2mo

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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2mo

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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Senior Full Stack Software Engineer

Berkeley Heights or Sunnyvale

$98k-$164k/yr OnsiteFull Time

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

5+ YOE5+ years in software engineering; strong Java, Spring Boot; React/TypeScript; relational and document databases (MySQL, MongoDB); cloud familiarity; payments/fintech experience preferred.

Java, Spring Boot, React, TypeScript, MySQL, MongoDB

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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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Senior AI Engineer

South San Francisco or Princeton or Thousand Oaks or Bellevue or New York

HybridFull Time

ZS: Global management consulting and technology firm for healthcare and life sciences.

AI Engineer with software development and LLM solution experience; strong Python, LLM patterns/tools, cloud platforms (AWS, Databricks, Azure), and DevOps; design and deliver scalable software; cross-functional collaboration.

Python, Javascript, FastAPI, Django, AWS, Databricks, Azure, Terraform, CloudFormation, React, Next.js, Tailwind CSS, LangChain, DSPy, Docker, Kubernetes, Redis, Unity Catalog, OpenAI API, Anthropic, AWS Bedrock, RAG, Vector DB, PEFT, LoRA

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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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Full Stack Developer - AI

Edison, New Jersey, United States

$97k-$183k/yr HybridFull Time

Greater New York Mutual Insurance: Provides commercial property and casualty insurance for businesses.

5+ YOEBachelor's or Master's in CS/IS or related field; 5+ years full-stack dev; 3+ years Generative AI; AI/ML and cloud experience; AI and Cloud certifications preferred; insurance industry experience preferred.

Python, React, NET, SQL, PostgreSQL, Azure DevOps, Azure Cloud, REST, GraphQL, Docker, Kubernetes, PEFT, LoRA, MLoRA, RAG, MCP servers

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Java Full Stack Software Engineer - Remote

Basking Ridge, New Jersey, United States

$92k-$164k/yr RemoteFull Time

UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.

8+ YOE8+ years in full-stack development; 5+ years Java; 4+ years ReactJS; 1+ year Python; experience with microservices, CI/CD, REST APIs, serverless, containers, IaC, cloud platforms; Agile/Scrum experience

Java, ReactJS, Python, Splunk, MongoDB, CI/CD, REST API, Serverless, Containerization, Infrastructure as Code, Azure, AWS

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1mo

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

2mo

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2mo

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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Technology Lead - US

Addison or Atlanta or Newark or Pennington

OnsiteFull Time

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

4+ YOEBachelor’s degree or foreign equivalent; 4+ years IT experience; .NET, Angular/React, Oracle PLSQL/SQL Server; banking domain a plus; willing to relocate to listed US locations.

.NET, Angular, React, Oracle, PLSQL, SQL Server, HTML5, CSS3, JavaScript

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Sr. AI Engineer

Pittsburgh or Whippany

$92k-$140k/yr OnsiteFull Time

ConnectiveRx: Technology-enabled patient support and medication access solutions.

3+ YOEDesigning and implementing AI automation, AI tooling, Python and AWS; 3–5+ years AI tech; 10+ years IT experience; healthcare exposure preferred.

Python, AWS, Next.js, React, Cursor, GitHub Copilot, Q Developer

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Associate Solutions Engineer - AI

Piscataway, New Jersey, United States

$75k-$150k/yr OnsiteFull Time

SHI International: Global provider of IT solutions, hardware, and software services.

Early-career engineer with strong ML/AI foundations and customer-facing skills; capable of designing, validating, and implementing AI-powered solutions.

Python, PyTorch, CUDA, TensorRT, XLA, LoRA, Reinforcement learning, Kernels, Docker, React, Node.js

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Software Development Manager - Banking

Edison or San Diego or Irvine or Las Vegas or Centennial or Overland Park or Omaha or Edison

$160k-$175k/yr OnsiteFull Time

Axos FinancialNYSE: AX: Provides digital-first banking and diverse financial services to customers.

10+ YOE10+ Mgmt10+ years software development with Angular/React; 10+ years leadership; distributed teams; .NET/C#/Java/JS; Agile; banking/clearing experience preferred.

.NET Framework, C#, Java, JavaScript, MVC, Angular 10, TypeScript, jQuery, SQL Server, RabbitMQ, Swagger Docs, REST, SOAP

2mo

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2mo

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

2mo

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2mo

Senior Payments Full Stack Java Developers

Charlotte or Iselin

$119k-$224k/yr OnsiteFull Time

Wells FargoNYSE: WFC: Provides diversified financial services including banking, investments, and mortgage products.

4+ YOE4+ years software engineering; 4+ years full stack; 4+ years J2EE (REST/SOAP); strong in Java, Spring Boot, ReactJS; experience with messaging and Kafka; cloud DevOps; on-site at listed locations.

Java, Spring Boot, ReactJS, JMS, Kafka, Confluent Platform, MongoDB, CI/CD, DevOps, Splunk, Grafana

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.NET Lead - NY/NJ_BCT

East Brunswick, New Jersey, United States

HybridFull Time

Atlas Systems: Provides AI-driven software solutions and managed IT services.

5+ YOEHands-on .NET and Azure expert; 70-80% coding; design and implement Azure-native solutions; mentor teams.

.NET Core, C#, Azure, Azure App Services, Azure Functions, Azure SQL, Cosmos DB, Azure Service Bus, Azure API Management, Azure Key Vault, Azure Monitor, Azure DevOps, React, TypeScript

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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