UI React - Senior Engineer

📍 Job Overview

Job Title: UI React - Senior Engineer

Company: Iris Software

Location: Noida, Uttar Pradesh, India

Job Type: Full-Time

Category: Frontend Engineering / UI Development

Date Posted: May 07, 2026

Experience Level: Senior (5-10 years)

Remote Status: On-site

🚀 Role Summary

• Spearhead the development of sophisticated user interfaces (UIs) utilizing the React JS framework, ensuring robust and scalable frontend solutions.

• Implement and manage state management through Redux Thunk or Redux Saga, optimizing application performance and data flow.

• Translate design mockups and wireframes into high-quality, responsive, and interactive web components using HTML5 and CSS3.

• Drive code quality and application stability through comprehensive unit testing methodologies, employing frameworks such as Jest, Enzyme, or React Testing Library.

• Optimize data retrieval and manipulation by writing efficient SQL queries to interact with backend databases.

📝 Enhancement Note: This role is positioned as a Senior Engineer, indicating a need for strong technical leadership, problem-solving abilities, and the capacity to mentor junior engineers. The emphasis on "Application & Product Engineering" and "latest technologies" suggests this role contributes to core product development and innovation within Iris Software's service offerings.

📈 Primary Responsibilities

• Design, develop, and implement complex, mission-critical frontend applications using React JS, adhering to best practices and coding standards.

• Integrate Redux middleware (Thunk or Saga) to manage application state, side effects, and asynchronous operations effectively.

• Collaborate closely with UI/UX designers and backend engineers to deliver seamless, user-centric digital experiences.

• Write clean, maintainable, and efficient code for UI components, ensuring cross-browser compatibility and responsiveness.

• Develop and execute comprehensive unit tests and integration tests to ensure the reliability and performance of frontend applications.

• Optimize application performance by identifying and resolving bottlenecks in rendering, data fetching, and state management.

• Contribute to the continuous improvement of frontend development processes, tools, and methodologies.

• Assist in the design and implementation of data models and database interactions, particularly concerning frontend data requirements.

• Participate in code reviews, providing constructive feedback to peers and junior developers.

📝 Enhancement Note: Given the "Senior Engineer" title and the company's focus on "complex, mission-critical applications," responsibilities likely extend beyond basic coding to include architectural input, technical leadership, and potentially mentoring junior team members. The mention of "Data & Analytics" and "Cloud" in the company description hints at potential future involvement in data visualization or cloud-integrated frontend features.

🎓 Skills & Qualifications

Education: While specific educational requirements are not detailed, a Bachelor's or Master's degree in Computer Science, Engineering, or a related field is typically expected for a Senior Engineer role in the IT industry.

Experience: A minimum of 5 years of hands-on experience specifically with React JS is mandatory. A total of 5-10 years of professional software development experience is anticipated.

Required Skills:

• JavaScript: Deep understanding of core JavaScript concepts, ES6+ features, and asynchronous programming.

• React JS: 5+ years of extensive experience in building scalable and performant applications with React.

• Redux Middleware: Proficiency in implementing and managing state with Redux Thunk or Redux Saga.

• HTML/HTML5 & CSS/CSS3: Strong command of semantic HTML and modern CSS for creating responsive and visually appealing interfaces.

• Unit Testing: Expertise in unit testing frameworks such as Jest, Enzyme, or React Testing Library for ensuring code quality.

• SQL: Solid ability to write efficient and accurate SQL queries for data interaction.

• Communication: Excellent verbal and written communication skills, essential for cross-functional collaboration and stakeholder interaction.

Preferred Skills:

• Experience with React Maps or other geospatial libraries.

• Familiarity with other state management libraries or patterns.

• Understanding of frontend build tools and bundlers (e.g., Webpack, Vite).

• Knowledge of TypeScript.

• Experience with CI/CD pipelines for frontend applications.

• Familiarity with Agile development methodologies.

📝 Enhancement Note: The "Mandatory Competencies" section in the job description strongly correlates with the required skills. The mention of "React Maps" suggests a potential need for integrating mapping functionalities, which is a specialized skill. The company's focus on "Data & Analytics" and "Cloud" implies that candidates with experience in these areas, even if not explicitly listed as mandatory, would be highly valued.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• React Project Demonstrations: Showcase at least 2-3 significant projects built with React JS, highlighting complexity, scale, and impact.

• State Management Implementation: Provide examples of how Redux Thunk or Saga was effectively used to manage complex application states and asynchronous workflows.

• Responsive Design Examples: Include case studies or live links demonstrating expertise in creating responsive UIs across various devices and screen sizes using HTML5 and CSS3.

• Unit Testing Coverage: Demonstrate proficiency in unit testing by providing examples of test suites for React components, including coverage reports if available.

• SQL Integration: If possible, illustrate how SQL queries were optimized or managed within the frontend architecture to ensure efficient data retrieval.

Process Documentation:

• Workflow Design: For portfolio projects, briefly outline the frontend development workflow from requirements gathering to deployment, emphasizing process improvements or optimizations implemented.

• System Implementation: Describe the architecture and key technologies used in your demonstrated projects, focusing on how React, Redux, and other tools were integrated.

• Measurement and Analysis: If applicable, present metrics related to performance improvements, bug reduction, or user engagement achieved through your frontend work.

📝 Enhancement Note: For a Senior Engineer role, a portfolio is crucial. It should not just list projects but detail the candidate's specific contributions, technical challenges overcome, and the impact of their work on business objectives. Emphasis should be placed on demonstrating leadership in process adoption and optimization within the frontend development lifecycle.

💵 Compensation & Benefits

Salary Range:

For a Senior UI React Engineer with 5-10 years of experience in Noida, India, the estimated annual salary range is ₹12,00,000 to ₹25,00,000. This estimate is based on market research for similar roles in the region, considering the company's size and industry standing. Factors such as specific skill proficiency, interview performance, and the exact scope of responsibilities will influence the final offer.

Benefits:

• Financial Support: Comprehensive compensation package.

• Health Benefits: Robust medical coverage and wellness programs.

• Well-being Needs: Support for holistic employee well-being.

• World-Class Benefits: Access to Iris's award-winning benefits designed for personalized employee experiences, supporting both professional and personal growth.

• Career Development: Opportunities for personalized career development and continuous learning.

• Mentorship: Access to mentorship programs.

Working Hours: The standard working hours for this role are likely 40 hours per week, aligning with typical full-time employment in the IT sector. While the role is on-site, Iris Software's culture emphasizes flexibility and employee ownership, which may translate to some degree of flexibility in daily schedules, provided project timelines and deliverables are met.

📝 Enhancement Note: The salary range is an estimate based on industry benchmarks for senior frontend engineers in metropolitan Indian tech hubs like Noida. Iris Software's claim of being "India's Top 25 Best Workplaces in IT industry" and having "award-winning culture" suggests their benefits package is likely competitive and comprehensive, aiming to support employee well-being holistically.

🎯 Team & Company Context

🏢 Company Culture

Industry: Information Technology (IT) Services and Consulting. Iris Software operates within the dynamic IT sector, focusing on technology-enabled transformation for enterprise clients across financial services, healthcare, transportation & logistics, and professional services. This context implies a fast-paced environment driven by innovation and client demands.

Company Size: Over 4,300 associates across India, U.S.A., and Canada. This indicates a large, established organization with global reach, offering stability and ample opportunities for career advancement and cross-functional exposure.

Founded: Iris Software has been in operation for a significant period, positioning itself as a well-established player in the IT services market. The company's vision is to be a trusted technology partner and a preferred employer.

Team Structure:

• Operations Team: The "UI React - Senior Engineer" role is part of the broader engineering or technology division. This division likely comprises various specialized teams focusing on different aspects of software development, such as frontend, backend, data, cloud, and quality assurance.

• Reporting Structure: A Senior Engineer typically reports to an Engineering Manager, Team Lead, or a Project Manager. They are expected to collaborate closely with other engineers, designers, product managers, and QA specialists.

• Cross-functional Collaboration: The role inherently requires strong collaboration with UI/UX designers to translate visual concepts into functional interfaces, and with backend developers to integrate frontend components with server-side logic and APIs.

Methodology:

• Data Analysis & Insights: While this role is frontend-focused, understanding data and how it's presented is crucial. The company's emphasis on "Data & Analytics" suggests that frontend engineers may work with data-driven features or dashboards.

• Workflow Planning & Optimization: Senior engineers are expected to contribute to refining frontend development workflows, adopting efficient coding practices, and improving deployment processes.

• Automation & Efficiency: The role involves using tools and practices that enhance efficiency, such as automated testing, efficient state management, and potentially CI/CD integration.

Company Website: https://www.irissoftware.com/

📝 Enhancement Note: Iris Software positions itself as a growth-oriented company with a strong emphasis on employee development ("Build Your Future. Own Your Journey."). The company's "Top 25 Best Workplaces" recognition suggests a positive and supportive work environment that values talent and ambition. The focus on "complex, mission-critical applications" means engineers will likely work on challenging and impactful projects.

📈 Career & Growth Analysis

Operations Career Level: This is a Senior Engineer position, signifying a level of technical expertise and experience where individuals are expected to lead complex technical tasks, contribute to architectural decisions, and potentially mentor junior team members. It's a crucial step beyond mid-level engineering, demanding a deeper understanding of system design, performance optimization, and best practices.

Reporting Structure: The Senior Engineer will likely report to an Engineering Manager or a Technical Lead. They will collaborate extensively with fellow engineers (frontend, backend), UI/UX designers, QA testers, and Product Managers to ensure successful project delivery.

Operations Impact: Frontend engineers, especially at the senior level, have a significant impact on user experience, customer satisfaction, and ultimately, the success of the product or service. By building intuitive, performant, and visually appealing interfaces, they directly influence user adoption, engagement, and business outcomes. Their work on "complex, mission-critical applications" means their contributions are vital to the core functionality and reliability of Iris Software's client solutions.

Growth Opportunities:

• Technical Specialization: Deepen expertise in React, explore advanced JavaScript patterns, or specialize in areas like performance optimization, accessibility, or frontend architecture.

• Leadership Development: Progress into roles like Tech Lead, Engineering Manager, or Architect, involving greater responsibility for team leadership, project strategy, and technical direction.

• Cross-functional Exposure: Gain experience in related domains such as backend development, cloud infrastructure, DevOps, or data analytics, leveraging Iris Software's diverse project portfolio.

• Continuous Learning: Benefit from Iris's commitment to continuous learning, mentorship programs, and potentially certifications in emerging technologies.

📝 Enhancement Note: The "Build Your Future. Own Your Journey." ethos at Iris Software suggests a proactive approach to career development. Senior engineers are expected to take ownership of their growth, and the company provides the framework and opportunities to do so, whether through technical mastery or leadership progression.

🌐 Work Environment

Office Type: The role is explicitly on-site in Noida. This implies a traditional office environment designed for collaborative work, team meetings, and focused individual contribution.

Office Location(s): Noida, Uttar Pradesh, India. This is a major IT hub in India, offering a vibrant ecosystem of talent and technological advancement.

Workspace Context:

• Collaborative Environment: The office setting will facilitate face-to-face interaction, brainstorming sessions, and team-building activities crucial for complex project development.

• Operations Tools & Technology: Engineers will have access to the necessary hardware, software, and network infrastructure required for development, testing, and collaboration. This includes development machines, access to internal systems, and potentially collaborative tools like Jira, Confluence, and Slack.

• Team Interaction: Proximity to colleagues allows for real-time problem-solving, knowledge sharing, and mentorship opportunities, fostering a strong sense of team cohesion.

Work Schedule: Standard full-time working hours (likely 40 hours/week) are expected, with a focus on meeting project deadlines and deliverables. While the environment is on-site, a culture that values employee ownership might offer some flexibility in daily start/end times, subject to team and project needs.

📝 Enhancement Note: As an on-site role in a large IT company, the workspace is likely well-equipped with modern amenities to support productivity and collaboration. The emphasis on being an "award-winning culture" suggests the office environment is designed to be engaging and supportive for its employees.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or HR representative will likely conduct an initial phone screen to assess basic qualifications, experience, and cultural fit.

• Technical Interviews (Multiple Rounds): Expect several technical interviews focusing on:

  • Core JavaScript & React Concepts: In-depth questions on fundamental principles, component lifecycle, hooks, context API, etc.
  • Problem-Solving & Algorithms: Live coding challenges or whiteboard exercises to assess logical thinking and problem-solving skills.
  • System Design: Discussion on how to design scalable and maintainable frontend architectures for complex applications.
  • Unit Testing: Questions about testing strategies, specific frameworks (Jest, Enzyme, RTL), and writing effective test cases.
  • SQL Queries: Potential questions on writing or optimizing SQL statements relevant to data fetching.

• Portfolio Review: A dedicated session where you present your selected projects, discussing your role, technical challenges, solutions, and the impact of your work.

• Manager/Team Lead Interview: A conversation focused on leadership potential, team collaboration, career aspirations, and cultural alignment.

• Final Round: Potentially a discussion with a senior leader or hiring manager to finalize the decision.

Portfolio Review Tips:

• Select Impactful Projects: Choose projects that best showcase your React expertise, problem-solving skills, and contributions to complex applications. Highlight projects where you took ownership or demonstrated leadership.

• Structure Your Presentation: For each project, clearly articulate the problem statement, your role and responsibilities, the technical approach (React, Redux, testing strategy), challenges faced, solutions implemented, and the measurable outcomes or impact.

• Quantify Achievements: Whenever possible, use data and metrics to demonstrate the success of your work (e.g., improved performance by X%, reduced bug count by Y%, increased user engagement by Z%).

• Be Prepared for Deep Dives: Expect interviewers to ask detailed questions about your code, design decisions, and testing methodologies. Be ready to explain your choices and defend your approach.

• Showcase Collaboration: If possible, highlight instances where you collaborated effectively with designers, backend engineers, or other stakeholders.

Challenge Preparation:

• Practice Live Coding: Utilize platforms like LeetCode, HackerRank, or Codewars to practice solving algorithmic and data structure problems, focusing on JavaScript.

• Review React Best Practices: Refresh your knowledge on React best practices, performance optimization techniques, and common design patterns.

• Understand Redux Patterns: Be prepared to discuss various Redux patterns and middleware configurations.

• Study System Design: Familiarize yourself with frontend system design principles for building scalable and maintainable applications.

• Prepare Project Walkthroughs: Rehearse presenting your portfolio projects, ensuring clarity, conciseness, and confidence.

📝 Enhancement Note: The interview process for a Senior Engineer role at a company like Iris Software will be rigorous, assessing both technical depth and soft skills. A strong portfolio that clearly articulates the candidate's contributions and impact is paramount. The emphasis on "complex, mission-critical applications" means interviewers will look for evidence of handling challenging technical scenarios.

🛠 Tools & Technology Stack

Primary Tools:

• React JS: The core framework for frontend development.

• JavaScript (ES6+): The primary programming language.

• HTML5/CSS3: For structuring and styling web content.

• Redux Thunk / Redux Saga: For state management and asynchronous operations.

• Jest / Enzyme / React Testing Library: For unit and integration testing.

• SQL: For database interaction.

Analytics & Reporting:

CRM & Automation:

• Not directly applicable for this frontend role, but understanding how frontend applications integrate with backend systems and potentially CRM data might be beneficial.

📝 Enhancement Note: The specified tools are fundamental for modern frontend development with React. A senior engineer is expected to be proficient in all these areas and potentially have experience with related tools in the ecosystem, such as build tools (Webpack, Vite), linters (ESLint), and version control systems (Git).

👥 Team Culture & Values

Operations Values:

• Innovation & Technology: A drive to work with "latest technologies" and engage in "technology-enabled transformation."

• Talent & Ambition: Valuing individual potential and career aspirations, encouraging employees to "own and shape their success story."

• Collaboration & Ownership: Fostering a culture where team members work together and take responsibility for their projects and growth.

• Impact & Trust: Aiming to be a trusted partner for clients by delivering impactful solutions.

• Growth & Development: Committed to providing continuous learning and personalized career development opportunities.

Collaboration Style:

• Cross-functional Integration: Strong emphasis on working effectively with diverse teams, including UI/UX designers, backend engineers, QA, and product managers.

• Process Review & Feedback: A culture that likely encourages constructive code reviews and feedback exchange to improve code quality and team knowledge.

• Knowledge Sharing: Encouraging the sharing of best practices, learnings, and technical insights among team members to foster collective growth.

📝 Enhancement Note: Iris Software's stated values and their recognition as a "Best Workplace" suggest a culture that is both performance-driven and employee-centric. The "Build Your Future. Own Your Journey." motto highlights a commitment to empowering individuals and fostering a sense of agency within the organization.

⚡ Challenges & Growth Opportunities

Challenges:

• Complexity of Projects: Working on "complex, mission-critical applications" can present significant technical challenges related to scalability, performance, and maintainability.

• Evolving Technologies: The rapid pace of change in frontend technologies requires continuous learning and adaptation to stay current.

• Cross-functional Dependencies: Managing dependencies and ensuring seamless integration with backend systems and other components can be challenging.

• Meeting Client Demands: Balancing cutting-edge technology implementation with client-specific requirements and deadlines.

Learning & Development Opportunities:

• Operations Skill Advancement: Opportunities to deepen expertise in React, explore advanced JavaScript concepts, and gain exposure to related frontend technologies.

• Industry Conference & Certification: Potential for attending industry events or pursuing certifications to enhance skills and knowledge.

• Operations Mentorship & Leadership: Access to mentorship programs and pathways to develop leadership skills, potentially moving into Tech Lead or Architect roles.

📝 Enhancement Note: The company's emphasis on growth and development, coupled with the challenging nature of their projects, provides a fertile ground for engineers looking to expand their technical horizons and advance their careers. The challenges presented are often framed as opportunities for learning and skill enhancement.

💡 Interview Preparation

Strategy Questions:

• Operations Strategy: "How would you approach designing a scalable and performant UI for a large-scale enterprise application at Iris?" (Focus on architectural patterns, state management, performance optimization, and testing strategies.)

• Collaboration: "Describe a time you had a technical disagreement with a backend engineer or designer. How did you resolve it?" (Highlight communication, compromise, and focus on project goals.)

• Problem-Solving: "Imagine a critical bug is reported in production affecting user sign-ups. Walk me through your process for diagnosing and fixing it." (Emphasize systematic debugging, testing, and communication.)

Company & Culture Questions:

• Company Operations: "What interests you about Iris Software's work in financial services/healthcare/transportation?" (Show research and alignment with company sectors.)

• Team Dynamics: "How do you prefer to receive feedback, and how do you typically provide it to your peers?" (Demonstrate openness to feedback and collaborative spirit.)

• Operations Impact: "Can you share an example of a frontend feature you developed that had a significant positive impact on user experience or business metrics?" (Prepare a concise case study with quantifiable results.)

Portfolio Presentation Strategy:

• Tell a Story: For each project, frame it as a narrative: the challenge, your role, the solution, and the outcome.

• Highlight Your Contributions: Clearly articulate what you specifically did, especially in team projects. Use "I" when describing your actions.

• Focus on Technical Depth: Be ready to discuss the "why" behind your technical choices (e.g., why React, why Redux Thunk over Saga, why a specific testing approach).

• Showcase Problem-Solving: Emphasize how you overcame technical hurdles or difficult requirements.

• Quantify Impact: Use metrics to demonstrate the value of your work (e.g., performance improvements, user engagement, bug reduction).

📝 Enhancement Note: Interviewers will be looking for candidates who not only possess strong technical skills but also demonstrate a proactive approach to problem-solving, effective communication, and a cultural fit with Iris Software's values of ownership and growth. Preparing specific examples from your experience is key.

📌 Application Steps

To apply for this UI React - Senior Engineer position:

• Submit your application through the provided link on the Iris Software careers portal.

• Portfolio Customization: Tailor your resume and cover letter to highlight your 5+ years of React JS experience, Redux proficiency, unit testing expertise, and any relevant SQL skills. Ensure your portfolio projects prominently feature these technologies and demonstrate your senior-level capabilities.

• Resume Optimization: Clearly list your experience with JavaScript, React JS, Redux Thunk/Saga, HTML5, CSS3, and testing frameworks. Quantify your achievements and emphasize any leadership or mentoring experience.

• Interview Preparation: Practice answering technical questions related to React, JavaScript, state management, and testing. Prepare detailed walkthroughs of your portfolio projects, focusing on your contributions and the impact of your work.

• Company Research: Familiarize yourself with Iris Software's mission, values, client sectors, and recent news. Understand their commitment to employee growth and "award-winning culture" to articulate your alignment during interviews.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.