61 senior fullstack developer jobs at 41 companies in Secaucus, NJ

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Senior Developer, Fullstack - Python
New York City or Austin or Miami or Dallas or Phoenix or São Paulo or Toronto
OnsiteFull Time, Contract
Appnovation
Appnovation: Full-service digital consultancy serving organizations through digital strategy, design, development, and support.
6+ YOEBachelor’s degree or equivalent and 6+ years in fullstack software engineering. Requires strong Python, frontend frameworks, APIs, testing, DevOps, cloud, AI-agent, and data-platform experience.
Python, FastAPI, Pydantic, JSON Schema, React, Vue.js, ES6, TypeScript, RESTful APIs, Git, CI/CD, AWS, MCP, Snowflake Cortex, Genie, Neo4j, Collibra, Unity Catalogue, Horizon, YAML, Docker, PostgreSQL, Databricks, Snowflake, Supabase, Next.js, Claude Code, GitHub Copilot
3mo
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Senior Fullstack Engineer
New York City, New York, United States
$185k-$215k/yr HybridFull Time
Copilot Money
Copilot Money: Premium personal-finance app for U.S. consumers tracking spending, budgets, investments, and net worth.
6+ YOE6+ years software engineering; experience with Node.js, React, TypeScript; backend API design; cloud experience; AI tooling; NYC-based; strong communication.
Node.js, React, TypeScript, GCP, AWS, Cloudflare, Firebase, CI/CD, AI coding tools
2mo
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Fullstack Developer
New York City, New York, United States
$215k-$236k/yr OnsiteFull Time
Manifest OS
Manifest OS: AI-native legal technology providing software, branding, and back-office services to law firms.
7+ YOE7+ years shipping fullstack TypeScript (React/Next.js and Node.js); strong PostgreSQL/relational DB skills; production APIs; hands-on cloud experience (GCP preferred); daily use of AI coding tools.
Cursor, Copilot, v0, Node.js, TypeScript, React, Next.js, PostgreSQL, GCP, AWS, Azure
1mo
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Fullstack Engineer
New York City, New York, United States
$180k-$275k/yr OnsiteFull Time
Medal
Medal: A research lab and product team building large action and world models and consumer-facing platforms for video and gaming content.
5+ YOE5+ years fullstack experience; React, Redux, Node.js; strong performance and profiling skills; product ownership; experience with real-time video, payments, and social API integrations preferred.
React, Redux, Node.js, TikTok, YouTube, Instagram, Discord, Electron, Styled Components, C#, C++, Swift, Kotlin, Java, Redis, RabbitMQ, Kubernetes, Terraform, Salt, GitHub Actions, CircleCI
5d
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Fullstack Engineer, App Platform
San Francisco or Seattle or New York City or Los Angeles or United Kingdom or Ireland or Poland or Germany or Australia
$207k-$230k/yr HybridFull Time
Whatnot
Whatnot: Live shopping marketplace connecting buyers and sellers.
5+ YOERequires 5+ years of software development experience, a bachelor's degree or equivalent experience, React and GraphQL web development, scalable fullstack systems expertise, and strong product, ownership, mentoring, and problem-solving skills.
React, GraphQL, Next.js, Node, Python, Postgres
2d
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Senior Fullstack Engineer
New York City, New York, United States
HybridFull Time
Torch Dental
Torch Dental: Private dental supply software helping independent dental practices order, manage, and budget supplies from multiple vendors.
7+ YOE7+ years of software engineering experience with strong frontend focus; deep React and TypeScript expertise; Python/FastAPI backend experience; TanStack Router and Query experience; strong product judgment.
React, TypeScript, Python, FastAPI, TanStack Router, TanStack Query, Django, Zod
2mo
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Senior Software Engineer, Fullstack (Healthcare)
New York City, New York, United States
$225k-$300k/yr OnsiteFull Time
CLEAR
CLEARNYSE: YOU: Provides biometric identity verification and expedited travel security services.
6+ YOE6+ years fullstack experience; deep knowledge of healthcare interoperability (FHIR, HL7 v2), EHR integrations (Epic), secure API/authentication, and identity assurance standards; strong backend/frontend skills.
Python, React, TypeScript, AWS, FHIR, HL7 v2, Epic, Interconnect, TEFCA, QHINs, Carequality, NIST IAL2
1mo
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.NET Fullstack Developer
Jersey City, New Jersey, United States
$100k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesBSE: 532540: Global leader in IT services, consulting, and business solutions.
6+ YOE.NET and Angular fullstack experience, 6+ years in apps development, strong UI and backend skills, SQL/NoSQL knowledge, SCM and DevOps tooling, bachelor's in computer science or equivalent.
.NET, Angular, HTML, CSS, SQLSERVER, Kafka, Python, SQL, Oracle Database, NOSql DB, GIT, JIRA, OpenShift, Docker, AWS, S3, Azure, LLM, copilot
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Senior Fullstack Engineer
New York City or Vancouver
RemoteFull Time
Flagler Health
Flagler Health: AI healthcare platform helping musculoskeletal practices automate clinical, administrative, patient-engagement, and revenue-cycle workflows.
3+ YOE3+ years building highly available applications in regulated environments; experience with Vue 3, TypeScript, Node, Mongoose, Express, monorepos, SQL, and NoSQL databases.
Vue.js 3, JavaScript, TypeScript, Express.js, Node, Mongoose, Turborepo, PostgreSQL, MongoDB, Twilio, OpenAI, Databricks API, AWS, GCP, HL7, FHIR, EHR, Azure, CI/CD, Git
2mo
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Fullstack Developer (US)
New Jersey or New York City or San Francisco
OnsiteFull Time
Lynx Analytics
Lynx Analytics: AI-native consulting firm helping global life sciences organizations make commercial and clinical decisions with data and AI.
5+ YOEBachelor's in CS, 5+ years full-stack development across front- and back-end, experience with React/Next.js and Python, cloud-native experience, overlap 3 hours/day with Pacific Time, strong communication.
React, Next.js, Jest, React Testing Library, Python, AWS, Azure, GCP, Docker, Kubernetes, CI/CD
1mo
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Senior Fullstack Product Engineer (Go)
London or New York City or San Francisco or Palma or Casablanca
OnsiteFull Time
Nuitée
Nuitée: Irish travel-technology platform providing hotel-distribution APIs and booking infrastructure for airlines, banks, OTAs, and travel companies.
Experienced Go backend and modern frontend (Next.js/Vue.js) developer with product focus, UX judgement, and ability to own features end-to-end.
Golang, Next.js, Vue.js
2mo
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Senior Fullstack Engineer - Growth + Onboarding
New York City or San Francisco or Los Angeles
$180k-$210k/yr HybridFull Time
Radix Health
Radix Health: Healthcare technology helping providers achieve fair reimbursement through integrated IDR software, data, and AI.
6+ YOE2+ Mgmt6+ years software engineering experience with recent backend work, 2+ years managing engineers, experience with integrations and third-party APIs, customer-facing communication, Python familiarity, and Bachelor's in STEM preferred.
EDI, 835/837, HL7, FHIR, ICD-10, CPT, Epic, Cerner, SFTP, Python
2mo
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Senior Fullstack Engineer, Growth & Monetization
New York City or San Francisco or Boston
$175k-$240k/yr OnsiteFull Time
LangChain
LangChain: Private AI software providing agent-engineering platforms and open-source frameworks for developers and enterprises.
Extensive full-stack experience with React, TypeScript, and Go and/or Python; familiarity with Postgres, Redis, REST APIs, usage metering, subscriptions, and monetization systems; strong product intuition and analytics-driven mindset.
LangSmith, LangChain, LangGraph, Deep Agents, LangSmith Engine, React, TypeScript, Python, Go, REST APIs, Postgres, Redis
3w
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Senior Software Engineer, Fullstack
New York City, New York, United States
$164k-$215k/yr HybridFull Time
Oscar Health
Oscar HealthNYSE: OSCR: Technology-driven health insurance and managed care provider.
5+ YOE5+ years of professional software engineering experience; expertise building fault-tolerant, scalable systems and writing stable, correct, maintainable code. TypeScript, JavaScript, Python, and/or Golang experience is preferred.
TypeScript, JavaScript, Python, Golang
1w
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Senior Fullstack Engineer (.NET/React + Umbraco CMS) - Agency
Santo Domingo or New York City
RemoteFull Time
Truelogic
Truelogic: Nearshore software development and staff augmentation services provider.
5+ YOERequires 5+ years of development experience, strong C#/.NET Core, JavaScript, React or Angular, HTML/CSS, REST APIs, Umbraco CMS, Microsoft SQL Server, Git, CI/CD, and advanced English.
C#, .NET Core, JavaScript, React, Angular, HTML, CSS, REST APIs, Umbraco CMS, Microsoft SQL Server, Git, CI/CD, Node.js, AWS
3mo
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.NET Fullstack Senior Developer - HYBRID (Parispanny, NJ, US)
Parsippany, New Jersey, United States
HybridFull Time
NTT DATA
NTT DATATokyo Stock Exchange: 9613: Global digital business and IT services provider.
7+ YOE7+ years enterprise web apps; 7+ years .NET Core full stack; 5+ years C#, Angular, SQL Server; 3+ years GCP Firebase/Firestore; 1+ year OpenShift
DOTNET_CORE, C#, Angular, SQL Server, SSIS, GCP, Firebase, Firestore, Azure DevOps, Git, VS, SonarQube, Netsparker/Invicti, JFrog, Cloud Platform (GCP or Azure), OIDC/JWT, Azure AD
2d
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VP, Senior Fullstack Software Engineer (Java, Angular)
New York City, New York, United States
$175k-$200k/yr OnsiteFull Time
Jefferies
JefferiesNYSE: JEF: Global investment banking and capital markets firm.
7+ YOERequires 7+ years developing web applications with Angular, strong TypeScript and RxJS skills, enterprise or financial systems experience, API and secure coding knowledge, testing experience, and agile collaboration.
Angular, TypeScript, RxJS, HTML5, CSS3, Tailwind, SCSS, Apollo GraphQL, Angular CDK, Nx, Vite, ESBuild, REST, GraphQL, OAuth2, OIDC, Jest, PlayWright, CI/CD
3mo
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Senior Fullstack Experiences Software Engineer
New York, New York, United States
HybridFull Time
Flowcode
Flowcode: Enterprise QR code platform helping brands connect offline audiences to digital experiences, CRM systems, and analytics.
5+ YOE5–7+ years in software development; strong backend experience; proficient in modern frontend frameworks; cloud and container experience; focus on performance and code quality.
React, Next.js, Svelte, Go, Python, Java, C#, Docker, Kubernetes, AWS, GCP, CI/CD, SQL, NoSQL
2mo
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Java Fullstack Developer (Remote)
Jersey City, New Jersey, United States
$120k-$130k/yr RemoteFull Time
LTIMindtree
LTIMindtreeNSE: LTM: AI-centric global technology services and consulting.
8+ YOERequires 8–12 years of experience with Java microservices, React, Spring Boot, and AWS. Strong communication skills required; MongoDB, Kafka, and AI/ML experience preferred.
Java, React, Spring Boot, AWS, MongoDB, Kafka, S3, API Gateway, DynamoDB
2mo
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Senior Fullstack Software Engineer (.Net and Angular)
Budapest or New York City or Washington or London or Galway or Munich or Bengaluru or Singapore or Sydney
HybridFull Time
Diligent
Diligent: Private GRC SaaS providing governance, risk, compliance, audit, and ESG software to boards and organizational leaders.
5+ YOEBachelor's in CS/Math/Engineering (or equivalent), 5+ years commercial software engineering, strong Angular and C#/.NET experience, AWS/cloud-native design, CI/CD and containerization familiarity, Git/GitHub, and mentoring skills.
Angular, C#, .NET, TypeScript, JavaScript, HTML, CSS, RxJS, NgRx, Redux, ASP.NET Core, Entity Framework Core, OpenAPI / Swagger, AWS, ECS/Fargate, Lambda, SQS, SNS/EventBridge, S3, DynamoDB, Step Functions, Nx, Angular Material, AWS CDK, Terraform, Docker, GitHub Actions, .NET Aspire, gRPC, Polly, Git, GitHub, CI/CD