Crisp Analytics (LUMIQ) - MERN Stack Developer

Company- Crisp Analytics (LUMIQ) - https://lumiq.ai/about-us/

Experience: 5–7 Years
Employment Type: Full-time

Location- Sector-62, Noida

• Key Responsibilities

• Design, develop, and maintain scalable web applications using the MERN stack

• Build high-performance RESTful APIs using Node.js and Express.js

• Develop clean, reusable, and responsive UI components using React.js

• Optimize application performance, security, and scalability

• Write efficient MongoDB schemas, queries, and aggregations

• Collaborate with Product, QA, and DevOps teams to deliver business outcomes

• Participate in code reviews, architecture discussions, and tech decisions

• Own features from requirements to production rollout

• Troubleshoot production issues and ensure system reliability

  Mandatory Technical Skills -

  • MongoDB – schema design, indexing, aggregation pipelines

  • Express.js – middleware, API security, routing

  • React.js – hooks, state management, component architecture

  • Node.js – async programming, performance tuning

  • JavaScript (ES6+) / TypeScript

  • REST APIs & API security (JWT, OAuth preferred)

  • Git / Version Control

  • HTML5, CSS3, Responsive Design

  Good to Have (Strong Advantage)

  • TypeScript in production environments

  • Redux / Zustand / React Query

  • Microservices architecture

  • Docker & basic Kubernetes exposure

  • CI/CD pipelines (GitHub Actions, Jenkins, etc.)

  • Cloud platforms – AWS / Azure / GCP

  • Unit & integration testing (Jest, Mocha)

  • What We’re Looking For

  • • 5–7 years of real-world MERN stack experience

    • Product-driven mindset with strong ownership

    • Ability to work independently with minimal hand-holding

    • Strong problem-solving and debugging skills

    • Clear communication and cross-team collaboration