Senior Mobile App Engineer (React Native/iOS/Android)
Boston or New York City
$170k-$190k/yrRemoteFull Time
Beacon Biosignals: Provides AI-powered EEG monitoring and analytics for brain health.
8+ YOERequires 8+ years of mobile development experience with native iOS, Android, or React Native; BLE, sensor integration, or health data experience; and familiarity with TypeScript, React Native, Swift, Kotlin, Expo, and GitHub.
ZoomInfoNASDAQ: GTM: Provides B2B contact data and sales intelligence software.
6+ YOE6+ years mobile development experience with React Native, strong JavaScript/TypeScript skills, state management (Redux/MobX), testing (Jest, React Native Testing Library), cross-platform iOS/Android production experience, and mentoring ability.
SimpliSafe: Provides wireless home security systems and professional monitoring services.
8+ YOE8+ years developing full-stack solutions; expert with React, Node.js, and TypeScript; experience with SSR/CSR, REST/GraphQL, SQL/ORM, AWS, mentoring, and scalable cloud-native architectures.
Plano or Boston or Portsmouth or Indianapolis or Columbus or United States or Los Angeles or Philadelphia or San Francisco
$137k-$257k/yrHybridFull Time
Liberty Mutual: Provides diversified property, casualty, and commercial insurance products.
8+ YOERequires 8+ years of software engineering experience, enterprise architecture and technical leadership, distributed systems expertise, cloud-native development, and proficiency with JavaScript/TypeScript, React, Node.js, and related tools.
Counsel: Provides AI-powered virtual medical consultations through asynchronous messaging.
2+ YOE2+ years professional experience; proficiency with React, TypeScript, Next.js, React Native, Postgres/Supabase, HTML/CSS (Tailwind), and AWS; experience building consumer-facing products and enterprise integrations.
General Medicine: An online store for upfront-priced medical care and consultations.
3+ YOE3+ years building mobile apps with production React Native experience; comfortable with Swift or Kotlin; experience with Expo, TypeScript, React, and Next.js; familiarity with backend tech (Ruby on Rails, Postgres) is a plus.
React Native, Swift, Kotlin, Expo, TypeScript, React, Next.js, Ruby on Rails, Postgres, SQL, HealthKit, EHR
Atlanta or Boston or Chicago or Indianapolis or United States or Canada or North America
RemoteFull Time
Greenlight Guru: Quality management and clinical data software for medical devices.
4+ YOE4+ years professional software development experience; React and modern JavaScript framework proficiency; experience with LLMs/generative AI and cloud-native architectures; REST/RPC/GraphQL APIs, testing, CI, and strong communication skills.
State StreetNYSE: STT: Provides investment servicing and management to institutional investors.
4+ YOEB.S. in a technical field required (MS preferred). 4+ years development experience (4-8 yrs preferred) with Java, Spring Boot, React, SQL; cloud-native (Azure) and Kafka/Snowflake are assets; Agile experience.
Java, Spring Boot, JavaScript, React, SQL, Azure, Kafka, Snowflake, RDBMS
CarGurusNASDAQ: CARG: Operates an online marketplace for buying and selling vehicles.
5+ YOE5+ years full‑stack software development experience, 2+ years Java, experience with cloud-native systems, auth/identity concepts, AI developer tools, testing and observability; BS in CS or equivalent.
Claude Code, Keycloak, OAuth2, OIDC, Java, Spring Boot, AWS, Kubernetes, React, Node, Remix, MCP
Click Therapeutics: Develops prescription software to treat medical conditions via smartphones.
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.
Boston or Salt Lake City or San Francisco or New York City
RemoteFull Time
Databento: Provides a pay-as-you-go financial market data platform.
5+ YOEMid/senior engineer experienced with TypeScript/JavaScript, building/maintaining JS client libraries, React/Redux front-ends, native integrations (N-API/node-addon-api/Wasm), and backend work in Python or Rust.
Mitsubishi Electric Iconics Digital Solutions: Provides industrial automation, SCADA, and IoT software solutions.
8+ YOE8+ years software development experience, proven technical leadership, production experience with generative AI, cloud-native architectures, full-stack development, and a bachelor's in CS or equivalent practical experience preferred.
UKG: Provider of workforce management and human capital management software.
6+ YOE6+ years software engineering experience building large-scale distributed systems; expert Java, React, TypeScript; experience with SQL/NoSQL, cloud-native platforms (Azure/AWS/GCP); familiarity with AI/LLMs and observability; BS in CS or equivalent.
Java, React, TypeScript, SQL, NoSQL, Microsoft Azure, AWS, Google Cloud Platform, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), vector databases, agentic frameworks
Columbus or Plano or Indianapolis or Boston or Portsmouth
HybridFull Time
Liberty Mutual: Provider of global property and casualty insurance products.
8+ YOERequires 8+ years of software engineering experience, enterprise architecture and technical leadership, distributed systems, cloud-native development, security, testing, DevOps, and a technical or business degree or equivalent experience.
McLean or Richmond or Plano or New York City or Boston
$179k-$246k/yrOnsiteFull Time
Capital OneNYSE: COF: A diversified financial services providing banking and credit products.
4+ YOEBachelor's degree, 4+ years of software engineering and Salesforce experience, 1+ year of cloud computing, and proficiency in listed programming languages, Salesforce tools, and APIs.
Python, JavaScript, Angular, React, Node, HTML, CSS, TypeScript, SQL, Java, Salesforce, Apex, Native, Visualforce, Lightning framework, SOQL, REST, SOAP APIs, AWS, Microsoft Azure, Google Cloud, Agile, Electronic Medical Records (EMR)
Wellington Management: Investment management and research services for global institutional clients.
5+ YOE5+ years building full-stack software, experience with Java/Python/TypeScript, cloud-native AWS development, SDLC tools (JIRA,GIT,CI/CD), AI-assisted workflows, strong communication and problem-solving.
JIRA, Git, Jenkins, GitHub Actions, VS Code, GitHub Copilot, Claude Code, AWS, Java, Python, TypeScript, JavaScript/Node.js, React, Angular, SQL, PostgreSQL, Oracle, MySQL
KlaviyoNYSE: KVYO: Software platform for automated e-commerce marketing and customer data.
12+ YOE12+ years software development, BA/BS in CS or equivalent, deep systems and architectural experience, AI-native proficiency, leadership of multi-team programs, experience with internal platforms and distributed systems.
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
8+ YOERequires 8+ years developing enterprise cloud-native applications and distributed systems, plus a bachelor's degree and expertise in .NET/C#, AWS, APIs, microservices, databases, security, and IoT.
Somerville or Germany or Hungary or Singapore or Israel or United States
$130k-$180k/yrHybridFull Time
Tulip: Provides a no-code platform for industrial frontline operations.
3+ YOE3+ years building complex backend systems; proficiency in a modern backend language; relational and non-relational databases; cloud-native or hybrid solutions; AI-assisted engineering tools.