3mo
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Senior Software Engineer, Mobile (React Native)
San Francisco or New York City or Portland
$185k-$215k/yr HybridFull Time
5+ YOE5+ years software engineering; 3+ years React Native; JS/TS and React; cross-platform mobile; mobile performance and UI/UX; RESTful APIs; native mobile knowledge; strong collaboration; adaptable in fast-moving env.
React Native, JavaScript, TypeScript, React, Redux, RESTful APIs
1mo
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Senior Mobile Engineer (React Native)
New York City, New York, United States
$210k-$270k/yr HybridFull Time
5+ YOE5+ years software engineering experience with production React Native apps, proficiency in JavaScript/TypeScript, mobile architecture, iOS/Android publishing, testing, performance optimization, and cross-functional collaboration.
React Native, JavaScript, TypeScript, iOS, Android, Swift, Kotlin, React Query, Redux, Zustand, CI/CD
3mo
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Front End Engineer (React Native)
New York, New York, United States
$160k-$280k/yr OnsiteFull Time
6+ YOE6+ years React, 3+ years React Native; React Native, TS/JavaScript, Redux; strong UX, problem solving; able to write testable code; team player; startup experience preferred.
React, React Native, TypeScript, JavaScript, Redux
2mo
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Software Engineer, Native Delivery
New York or San Francisco
$180k-$320k/yr RemoteFull Time
Senior software engineer building SDKs and backend systems; ownership of end-to-end projects; cross-platform (iOS/Android/React Native) development; on-device and backend collaboration.
iOS, Android, React Native, SDK development, Backend
1mo
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Senior Software Engineer (NodeJS, React)
Budapest or New York City or Washington or Vancouver or London or Galway or Munich or Bengaluru or Singapore or Sydney
HybridFull Time
5+ YOE5+ years hands-on commercial development, strong SQL/RDBMS, microservices and REST API experience, cloud-native (AWS) experience; NodeJS/React, CI/CD, containers and mentoring skills preferred.
SQL, RDBMS, REST APIs, AWS, NodeJS, React, CI/CD, containers, GitHub actions, QuickSight, Lookr
2mo
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Senior Software Engineer
San Francisco or New York City
$180k-$230k/yr HybridFull Time
Proficient in TypeScript (React) and Python (Flask); AI-native workflow experience; experience with SQL/Postgres; startup experience; strong customer focus.
React, TypeScript, Python, Flask, Firebase, SQL, PostgreSQL
2mo
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Senior Mobile Engineer
New York City, New York, United States
$200k-$284k/yr OnsiteFull Time
6+ YOESenior mobile engineer with 6+ years React Native, experience maintaining/scaling apps, Swift/Kotlin for native extensions, leadership, CI/CD pipelines, and strong problem-solving.
React Native, Swift, Kotlin, Git, CI/CD, iOS, Android
2mo
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Senior AI Engineer
New York or United States
$150k-$160k/yr RemoteFull Time
Holtzbrinck Publishing Group: Global media group publishing academic research, educational materials, and books.
Senior AI Engineer with full-stack capabilities; cloud-native AI products; deployment, monitoring, and optimization of AI models; strong software engineering; production systems; English communication.
Google Cloud, AWS, Firebase, Python, TypeScript, Django, Terraform, GitHub, Cloud Firestore, EventArc, PubSub, GCIP, Cloud Storage, Cloud Functions, React, BigQuery, GitHub Actions, Langfuse, Snowflake, PostgreSQL, Vertex AI, Weights & Biases
3mo
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Senior Software Engineer, Predictions (Mobile)
New York, New York, United States
$140k-$200k/yr HybridFull Time
6+ YOE6+ years software engineering; 4+ years mobile React Native; TypeScript; real-time UI experience; regulated environment familiarity.
React Native, TypeScript, gRPC, WebSocket, Expo, Swift, Kotlin
2mo
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Senior Software Engineer
New York, New York, United States
HybridFull Time
5+ YOE5+ years professional software engineering; proficient in C#/.NET, TypeScript/Node.js, or React/React Native; SQL (SQL Server/PostgreSQL); experience with AI coding agents; production systems handling real traffic/money; Azure experience a plus
C#/.NET, TypeScript/Node.js, React/React Native, Azure SQL, Azure Service Bus, Azure Storage, Azure Cosmos DB, Claude Code, Codex, Visual Studio, VSCode, Cursor, Azure Cloud Platform
2mo
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Senior Product Design Engineer, Notifications & Real-Time Safety
New York City, New York, United States
$155k-$215k/yr HybridFull Time
5+ YOE5+ years blending product design and front-end engineering; strong portfolio with real-time/notification experiences; AI tooling in workflow; experience with React/React Native, SwiftUI, or similar.
Figma, React, React Native, SwiftUI
3w
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Senior Software Engineer
New York City, New York, United States
$230k-$250k/yr OnsiteFull Time
Proven track record building full‑stack consumer applications with Python, Postgres, TypeScript, and React/React Native; experience integrating LLMs and shipping high‑quality features.
React, React Native, TypeScript, Python, Postgres, Cursor, Copilot, LLM
4w
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Senior Mobile Developer
Alpharetta or Omaha or Berkeley Heights
$109k-$182k/yr OnsiteFull Time
5+ YOE5+ years mobile development; 4+ years with Kotlin and/or Swift and experience with React Native/JavaScript; strong mobile architecture, state management, RESTful APIs, CI/CD, Git; bachelor's degree or 6 years relevant experience; valid unrestricted U.S. work authorization.
Swift, Kotlin, React Native, JavaScript, RESTful APIs, Git, AWS, Azure, GCP, CI/CD
3mo
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Senior Software Engineer - Client Portal
Brooklyn, New York, United States
$145k-$175k/yr OnsiteFull Time
Experience building backend services with FastAPI/Python and frontend/mobile with React/React Native + Expo; AWS experience; champion test-driven development, code quality, incident response, and cross-functional collaboration.
FastAPI, Python, React Native, Expo, React, AWS
1mo
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Senior Mobile Engineer
Barcelona or Dublin or London or New York City
RemoteFull Time
Deep React Native and TypeScript experience, shipped production mobile apps, experience rebuilding or migrating apps, strong product/UX focus, reliability on low-spec devices, familiarity working across web and mobile stacks and using AI-assisted development.
React Native, TypeScript, React, Node.js, Capacitor, Python, FastAPI, AWS Fargate, Amazon Aurora, Amazon SQS, Postgres, MongoDB, Docker
2mo
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Senior Research Engineer - Experimental Engineering
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
Senior research engineer with deep full-stack software engineering experience, strong applied AI/ML knowledge, prototyping and R&D experience, Python/FastAPI and frontend (React/React Native) familiarity, and ability to lead experiments and mentor engineers.
AI, Machine Learning, Python, FastAPI, React, React Native, RAG
3w
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Senior Software Engineer (Fullstack)
New York City or Boston or United States
$185k-$225k/yr HybridFull Time
5+ YOE5+ years building production software (2+ years at a startup preferred). Proficiency with React, Next.js, Node.js (TypeScript), React Native, Postgres, AWS, Terraform, Redis. Familiarity with AI/ML concepts.
React, Next.js, Node.js, TypeScript, React Native, Postgres, AWS, Terraform, Redis
2w
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Senior Full Stack Engineer, Autopilot
San Francisco or Washington or New York City or United States
$150k-$185k/yr HybridFull Time
7+ YOE7+ years experience with Node/TypeScript, React/React Native, GraphQL and Postgres; strong observability, vendor integration knowledge, communication and critical thinking.
TypeScript, React, React Native, Node, GraphQL, Postgres
2d
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Senior Software Engineer
New York City or Boston
$172k-$224k/yr HybridFull Time
10+ YOE10+ years full-stack experience with React Native, TypeScript, Node.js, AWS, Kubernetes; experience designing multi-agent AI workflows, mentoring engineers, and operating CI/CD and observability practices.
React Native, TypeScript, Node.js, AWS, Kubernetes, Datadog, Zoom, Gemini Enterprise Stack, LinkedIn
1mo
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Senior Full Stack Engineer - Seattle
Seattle or San Francisco or New York City
$200k-$220k/yr HybridFull Time
Haus: Provides an incrementality platform for marketing measurement and optimization.
5+ YOE5+ years building production web applications and APIs; strong Python and React skills; experience with Flask, SQLAlchemy, relational databases, cloud-native (GCP preferred), and AI development tools; on-call participation.
Python, Flask, React, SQLAlchemy, GCP, MySQL, PostgreSQL, Claude Code, Cursor, Copilot, Meta, Google, TikTok, Meta Marketing API, Google Ads API
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