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React Query Jobs in Massachusetts (NOW HIRING)

Preferably with the React/Redux/Next.js technology stack 5+ years of experience designing and ... Query and Next.js. Good communication skills, ability to mentor, work collaboratively and ...

... hands-on React development experience Experience with modern React patterns (hooks, context ... Relational database design and optimization Moderate to complex query writing and performance ...

... React, JavaScript, HTML5, CSS3, REST APIs, Microservices, SQL, and MVC architecture. • Strong SQL experience, including Stored Procedures, Functions, Triggers, Views, and query optimization. • ...

... React, JavaScript, HTML5, CSS3, REST APIs, Microservices, SQL, and MVC architecture. • Strong SQL experience, including Stored Procedures, Functions, Triggers, Views, and query optimization. • ...

Software Engineer II

Boston, MA · Hybrid

$114K - $140K/yr

React, or similar UI framework * AWS or similar cloud computing platform * Unit and Integration ... SQL and query tuning * Knowledgeable about Unix or Unix-like operating systems * Enterprise ...

Experience with relational databases (MySQL preferred), including schema design, query optimization ... Familiarity with other front-end frameworks like React, Vue, or similar * AWS certifications ...

Expert-level knowledge Javascript or Typescript using a modern front-end framework (e.g., React ... Proficiency with both SQL (e.g., PostgreSQL) and experience with data modeling and query ...

Adapt and react to market trends during each biweekly forecast/purchasing cycle. * Review demand ... Data warehouse/data mart query and report development tools * Ability to analyze trends and use ...

Showing results 41-60

React Query information

What are some common challenges developers face when integrating React Query into an existing React application?

One common challenge developers encounter is adapting existing state management patterns to leverage React Query’s data-fetching and caching mechanisms effectively. Transitioning from traditional global state solutions like Redux or Context to React Query often requires rethinking how server state and client state are separated and managed. Additionally, ensuring proper cache invalidation and understanding query keys can be tricky at first, but mastering these concepts is essential for optimal application performance. Collaborating with teammates to establish best practices for query structure and error handling helps streamline the adoption process.

What is the difference between React Query vs React Developer?

AspectReact Query
Required SkillsData fetching, caching, server state management, React hooks
Work EnvironmentFrontend development, UI/UX focus, JavaScript/React projects
Industry UsageWeb applications, SaaS platforms, e-commerce sites

React Query is a library for managing server state in React applications, focusing on data fetching and caching. A React Developer builds entire user interfaces, often using React Query as a tool within their skill set. While React Developers need broader knowledge of React, JavaScript, and UI design, React Query specialists focus on efficient data management within React apps. Both roles often overlap in web development teams, but React Query is a specific library skill, whereas React Developer is a broader role.

What is React Query?

React Query is a powerful data-fetching and state management library for React applications. It simplifies the process of fetching, caching, synchronizing, and updating server data in your UI, eliminating the need for complex state management solutions or manual data handling. By handling background updates, caching, and stale data, React Query helps developers build fast and responsive applications with less boilerplate code. It works seamlessly with REST, GraphQL, and other data sources, making it a versatile choice for modern web development.

What are the key skills and qualifications needed to thrive as a React Query developer, and why are they important?

To thrive as a React Query Developer, you need a solid understanding of JavaScript, React, and asynchronous data fetching patterns, along with experience in frontend development. Proficiency with React Query itself, familiarity with RESTful APIs, GraphQL, and tools like Axios or Fetch are typically required. Strong problem-solving skills, attention to detail, and effective communication set top candidates apart in this role. Mastery of these skills ensures efficient data management, optimal user experiences, and smooth integration of complex data-driven features in modern web applications.
What cities in Massachusetts are hiring for React Query jobs? Cities in Massachusetts with the most React Query job openings:

Principle Software Engineer, AI Observability & Evals Platform

LangChain

Boston, MA • On-site

$146K - $196K/yr

Full-time

Re-posted 26 days ago


Job description

Job Summary:
LangChain is dedicated to making intelligent agents widely accessible, building a platform for evaluating and operating AI agents. The Principal Software Engineer role involves leading the technical direction of the AI observability platform, driving architectural decisions, and mentoring engineers while ensuring system reliability and performance.
Responsibilities:
• Lead architectural decisions across our Go, Python, and TypeScript stack, ensuring systems are performant, maintainable, and built to scale
• Work across the full stack, owning features end-to-end from backend services and APIs through to frontend product experiences
• Drive tracing, monitoring, and evaluation workflows at scale, with a focus on reliability and query performance across high-volume data
• Help shape the product roadmap by partnering closely with product and design — not just executing on it
• Set engineering standards for the team: define patterns, lead code reviews, and establish the foundations others build on
• Mentor and grow engineers at all levels through code review, design feedback, pairing, and ongoing technical guidance
• Drive projects from ambiguity to delivery while maintaining high engineering standards and aggressive timelines
• Troubleshoot and resolve production issues with a root-cause mindset, and implement durable fixes
• Ensure system reliability through strong testing, monitoring, and alerting practices
• Create and maintain technical documentation, including system design docs and API references
Qualifications:
Required:
• 10+ years of professional experience in backend or fullstack engineering on highly complex, production systems
• Strong programming skills across multiple parts of the stack: backend (Python and/or Go) and frontend (TypeScript, React, or similar)
• Demonstrated experience making and owning architectural decisions, including tradeoffs around data systems, APIs, and service reliability
• Experience with high-throughput or mission-critical systems, and a proven ability to optimize for performance and reliability
• Depth in operationalizing technical work — you've taken systems from prototype to production and kept them running well at scale
• Demonstrated track record of mentoring engineers and raising the technical quality of a team, not just the codebase
• Strong communication skills and comfort operating cross-functionally with product, design, and engineering leadership
• Customer centricity and an ownership mentality — you care how the product lands, not just how the code reads
• You exemplify our operating principles
Preferred:
• Experience with database systems (Postgres, Redis, ClickHouse) and cloud platforms (AWS, GCP, or Azure)
• Familiarity with observability tooling, evaluation frameworks, or AI/LLM infrastructure
Company:
LangChain is a platform that provides open-source frameworks and tools for engineering and deploying language model agents. Founded in 2022, the company is headquartered in San Francisco, USA, with a team of 51-200 employees. The company is currently Growth Stage.