79 fullstack developer jobs at 52 companies in Yorktown Heights, NY
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Fullstack Developer
New York City, New York, United States
$215k-$236k/yrOnsiteFull Time
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.
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.
San Francisco or Seattle or New York City or Los Angeles or United Kingdom or Ireland or Poland or Germany or Australia
$207k-$230k/yrHybridFull Time
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.
New York City or Austin or Miami or Dallas or Phoenix or São Paulo or Toronto
OnsiteFull Time, Contract
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.
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.
Washington, D.C. or London or New York City or Miami or San Francisco or Dubai or Singapore or Hong Kong or Tokyo
HybridFull Time
Elliptic: Private British blockchain analytics and crypto-compliance software serving banks, exchanges, governments, and digital-asset businesses.
Production software engineering experience with TypeScript, React, Nest.js, Postgres, Kubernetes, AWS, Terraform, and Datadog; AI-assisted development and cryptocurrency or blockchain interest required.
CHEQ: Private Israeli cybersecurity helping businesses identify human, bot, and AI-agent traffic and prevent fraud.
0+ YOEBachelor's degree in computer science or software engineering, GPA above 90, proficiency in C#, Java, or Node.js, cloud knowledge, independent learning ability, AI-first development experience, and strong collaboration skills.
React, TypeScript, Node.js, Kubernetes, Amazon Web Services (AWS), PostgreSQL, MySQL, ClickHouse, Redis, Grafana, GitLab CI/CD, Vue.js, C#, .NET, Microsoft Azure, Claude Code, Java, Google Cloud Platform (GCP)
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.
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.
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.
Verneek: Enterprise AI providing an AI-native operating platform that unifies retail operations for consumer brands.
3+ YOERequires 3+ years building high-performance applications, strong TypeScript, React, and NextJS skills, complex-backend project experience, and US work authorization; machine learning experience preferred.
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.
Seattle or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
OnsiteInternship
TikTok: Short-form mobile video and social media platform.
Currently pursuing a bachelor's or master's degree in computer science or related discipline; familiarity with fullstack development and proficiency in at least one listed programming language.
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.
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
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.