4 staff react native engineer jobs at 2 companies in Everett, MA

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
1w
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Sr. Staff Software Engineer
Lowell, Massachusetts, United States
$146k-$209k/yr HybridFull Time
UKG
UKG: Provider of workforce management and human capital management software.
10+ YOE10+ years building enterprise Java-based web applications, expertise with cloud-native architectures, AI/LLM integrations, microservices, REST APIs, and strong testing and CI/CD practices.
Java, J2EE, Spring Boot, Spring Framework, Hibernate/JPA, React, JavaScript, HTML5, CSS3, REST APIs, Microservices, SQL, GitHub Copilot, ChatGPT, Cursor, Claude, LangGraph, OpenAI Agents SDK, CrewAI, AutoGen, OpenAI, Anthropic, Google Gemini, Model Context Protocol (MCP), AWS, Microsoft Azure, Google Cloud Platform, Kubernetes, Docker, OpenShift, Terraform, CloudFormation, ARM Templates, GitHub Actions, Jenkins, Azure DevOps, GitLab CI, Datadog, Grafana, Prometheus, Splunk, OpenTelemetry, Bash, Python, PowerShell
1mo
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Staff Software Engineer
Boston, Massachusetts, United States
$147k-$196k/yr HybridFull Time
SimpliSafe
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.
React, Remix, Next.js, React Router, Node.js, TypeScript, NestJS, Express.js, GraphQL, REST, SQL, TypeORM, Prisma, AWS, Docker, Kubernetes, ECS, Contentful, Optimizely, Cloudflare Workers, Lambda@Edge, Vercel Edge, OpenTelemetry, Grafana, New Relic, Datadog, commercetools
23h
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Staff Software Engineer-JAVA
Lowell, Massachusetts, United States
$130k-$186k/yr HybridFull Time
UKG
UKG: Provider of workforce management and human capital management software.
7+ YOE7+ years building enterprise Java web applications; strong Java, Spring Boot, Hibernate/JPA, React, SQL, cloud-native and AI integration experience; TDD and CI/CD practices.
Java, J2EE, Spring Boot, Spring Framework, Hibernate/JPA, React, JavaScript, HTML5, CSS3, REST APIs, SQL, LangGraph, OpenAI Agents SDK, CrewAI, AutoGen, OpenAI, Anthropic, Google Gemini, AWS, Microsoft Azure, Google Cloud Platform, Kubernetes, Docker, OpenShift, Terraform, CloudFormation, ARM Templates, GitHub Actions, Jenkins, Azure DevOps, GitLab CI, Datadog, Grafana, Prometheus, Splunk, OpenTelemetry, Bash, Python, PowerShell, GitHub Copilot, ChatGPT, Cursor, Claude
2w
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Staff Software Engineer- Payroll Platform
Lowell, Massachusetts, United States
$130k-$186k/yr HybridFull Time
UKG
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