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 / Software Development

Date Posted: 2026-07-27

Experience Level: Senior (7-8 Years)

Remote Status: On-site

🚀 Role Summary

• Design, develop, and implement scalable React enterprise applications, focusing on reusable component architecture and efficient frontend integration strategies.

• Lead the end-to-end delivery of modules, ensuring adherence to coding standards, security guidelines, and engineering best practices through rigorous code reviews.

• Drive improvements in CI/CD pipelines, logging, monitoring, and deployment automation to enhance operational efficiency and system reliability.

• Troubleshoot production issues and performance bottlenecks by conducting detailed root cause analysis and implementing sustainable fixes.

• Mentor junior developers on advanced React concepts, debugging techniques, and established engineering best practices to foster team growth and expertise.

📝 Enhancement Note: This role is specifically for a Senior Engineer focused on the User Interface (UI) with a strong emphasis on React. The responsibilities highlight a blend of hands-on development, architectural design, and leadership in a senior capacity, typical for a Principal or Lead Frontend Engineer role in a large IT services company. The emphasis on "enterprise applications" suggests a need for robust, scalable, and maintainable solutions.

📈 Primary Responsibilities

• Design and develop scalable React enterprise applications that are aligned with both business objectives and advanced engineering goals.

• Define clear API contracts, establish robust service boundaries, and strategize effective integration for distributed and enterprise-grade systems.

• Architect and define reusable React component libraries and scalable frontend integration strategies that promote consistency and maintainability.

• Drive the implementation of reusable React Hooks and scalable component-driven architecture patterns to enhance development efficiency and code modularity.

• Own the complete end-to-end delivery cycle for assigned modules, encompassing design, development, testing support, and deployment readiness.

• Conduct thorough code reviews, ensuring strict adherence to coding standards, security guidelines, and established engineering best practices.

• Lead the implementation of Redux state management across enterprise frontend applications, ensuring efficient and predictable data flow.

• Drive improvements in CI/CD pipelines, logging, monitoring, and deployment automation to significantly enhance operational efficiency and system uptime.

• Troubleshoot and resolve production issues and performance bottlenecks through detailed root cause analysis and the implementation of sustainable, long-term fixes.

• Implement advanced TanStack Query (React Query) strategies for optimized asynchronous data handling, caching, and efficient data synchronization.

📝 Enhancement Note: The primary responsibilities clearly delineate the senior-level expectations, moving beyond basic development to include architectural input, process improvement, and ownership of complex modules. The inclusion of specific technologies like TanStack Query and Redux indicates a need for deep expertise in modern frontend state management and data handling.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Computer Science, Engineering, or a related field is typically expected for a Senior Engineer role of this caliber.

Experience: 7-8 years of professional experience in frontend development, with a significant focus on React-based enterprise applications.

Required Skills:

• Expertise in React, including advanced concepts and best practices for building complex user interfaces.

• Proficient in modern JavaScript (ES6+), including asynchronous programming and functional concepts.

• Strong command of HTML5 and CSS3, with a focus on semantic HTML and responsive design principles.

• In-depth knowledge of React Hooks for managing component logic and state.

• Experience with React Maps for integrating mapping functionalities.

• Proven ability in React Performance Optimization techniques to ensure smooth user experiences.

• Hands-on experience with Redux for robust state management in large-scale applications.

• Proficiency in TanStack Query (React Query) for efficient asynchronous data fetching, caching, and synchronization.

• Experience with testing frameworks such as Jest for unit testing.

• Skilled in using React Testing Library (RLT) for component and integration testing.

• Understanding of API contracts, service boundaries, and integration strategies for distributed systems.

• Experience in driving improvements for CI/CD pipelines, logging, and monitoring.

• Demonstrated ability to perform root cause analysis for production issues. Preferred Skills:

• Experience with component-driven architecture patterns.

• Familiarity with other state management libraries or patterns beyond Redux.

• Knowledge of backend integration strategies and distributed systems.

• Experience leading code review processes and mentoring junior developers.

• Familiarity with cloud platforms and deployment strategies.

• Understanding of security best practices in frontend development.

📝 Enhancement Note: The mandatory skills list is extensive and highly specific, indicating a need for deep, practical experience with the listed technologies. The "Mandatory Competencies" section in the raw data further reinforces these requirements, particularly in areas like React, JavaScript, HTML/CSS, Redux, and testing frameworks (Jest). The AI-generated skills list provides a good summary, but the raw data's explicit mention of "React Maps" and "React Performance Optimization" should be highlighted.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase at least 2-3 significant React projects demonstrating end-to-end development expertise, ideally enterprise-level applications.

• Include case studies detailing the architecture, key challenges, and solutions implemented, focusing on performance optimization and scalability.

• Provide examples of reusable component libraries, custom React Hooks, and state management strategies (e.g., Redux, TanStack Query).

• Demonstrate experience with unit and integration testing, including examples of Jest and React Testing Library usage.

• Highlight contributions to CI/CD pipelines, monitoring, or deployment automation if applicable. Process Documentation:

• Be prepared to discuss your approach to defining API contracts and integration strategies for complex systems.

• Detail your experience in driving improvements for CI/CD, logging, and monitoring processes.

• Explain your methodology for troubleshooting production issues, including root cause analysis and implementing sustainable fixes.

• Discuss your process for conducting code reviews and mentoring junior developers on engineering best practices.

📝 Enhancement Note: For a Senior Engineer role, a portfolio is crucial. It should not just list projects but articulate the how and why behind technical decisions, especially concerning scalability, performance, and maintainability in an enterprise context. The emphasis on process documentation in responsibilities suggests interviewers will probe deeply into their systematic approach to development and problem-solving.

💵 Compensation & Benefits

Salary Range: For a Senior UI React Engineer with 7-8 years of experience in Noida, India, the estimated annual salary range is ₹15,00,000 to ₹25,00,000 (approximately $18,000 - $30,000 USD, depending on current exchange rates). This range accounts for the experience level, the specific skill set required, and the cost of living in the Noida/NCR region.

Benefits:

• Access to Iris Software's "World-Class Benefits" program, designed for personalized employee experience.

• Benefits are structured to support financial, health, and well-being needs.

• Potential for health insurance, retirement savings plans, paid time off, and professional development opportunities.

• Specifics can be viewed via the provided link: https://www.irissoftware.com/careers/world-class-benefits-that-matter/

Working Hours: The standard working hours are likely 40 hours per week, typical for full-time IT roles in India, aligning with the IST (Indian Standard Time) zone.

📝 Enhancement Note: The salary estimate is based on market research for Senior Frontend Engineers in major Indian tech hubs like Noida, considering the specified 7-8 years of experience and the advanced React skill set. The benefits are highlighted as a key offering by Iris Software, with a direct link provided for candidates to explore further details.

🎯 Team & Company Context

🏢 Company Culture

Industry: IT Services and Consulting, specializing in technology-enabled transformation across financial services, healthcare, transportation & logistics, and professional services.

Company Size: Over 4,300 associates across India, USA, and Canada, classifying Iris Software as a large enterprise in the IT sector. This size implies structured processes, larger teams, and potentially more complex project environments.

Founded: While the founding date isn't explicitly provided, the company's scale and growth suggest it is an established player in the IT services market, likely founded in the late 1990s or early 2000s.

Team Structure:

• The role is within a large IT services company, suggesting a matrixed or project-based team structure.

• Expect to work within agile development teams, potentially composed of frontend developers, backend developers, QA engineers, DevOps specialists, and project/product managers.

• The Senior Engineer will likely report to a Tech Lead, Engineering Manager, or Project Manager, and will be responsible for mentoring junior engineers.

• Cross-functional collaboration is essential, involving close interaction with business stakeholders and other engineering disciplines to define requirements and deliver solutions. Methodology:

• Iris Software focuses on technology-enabled transformation, implying an agile and iterative development approach.

• The company emphasizes modern technologies and practices such as Application & Product Engineering, Data & Analytics, Cloud, DevOps, Data & MLOps, Quality Engineering, and Business Automation.

• Expect a data-driven approach to development, with a focus on performance optimization, root cause analysis, and continuous improvement.

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

📝 Enhancement Note: Iris Software positions itself as a rapidly growing IT services company with a strong focus on employee value and career growth. Being recognized as one of India's Top 25 Best Workplaces in the IT industry suggests a positive and supportive work environment, which is a significant draw for potential candidates. The company's vision to be a client's most trusted partner implies a commitment to quality and client satisfaction.

📈 Career & Growth Analysis

Operations Career Level: This role is classified as a Senior Engineer, indicating a mid-to-senior level position. It requires significant technical expertise, the ability to work independently on complex tasks, and the capacity to mentor others. It sits above a standard developer but below a lead architect or management role.

Reporting Structure: The Senior Engineer will likely report to a Team Lead, Engineering Manager, or Project Manager. They will be expected to collaborate closely with peers across different engineering disciplines and potentially product owners or business analysts.

Operations Impact: While this is a frontend engineering role, its impact on revenue and business decisions is indirect but critical. By designing and developing scalable, high-performance, and user-friendly enterprise applications, this role directly contributes to:

• Enhancing customer experience, leading to increased customer satisfaction and retention.

• Improving operational efficiency through well-architected and optimized applications.

• Enabling new business capabilities and digital transformation initiatives for clients.

• Reducing technical debt and maintenance costs through high-quality code and architecture. Growth Opportunities:

• Technical Specialization: Deepen expertise in React, frontend architecture, performance optimization, and related technologies, potentially moving towards a Principal Engineer or Architect role.

• Leadership Development: Progress into a Tech Lead or Engineering Manager role, taking on more responsibility for team management, project delivery, and strategic technical direction.

• Cross-functional Exposure: Gain experience in other areas of IT services such as Cloud, DevOps, Data & Analytics, or MLOps through project involvement or internal training.

• Mentorship: Continue to develop leadership and communication skills by mentoring junior engineers, which is a key aspect of this senior role.

• Client Engagement: Potentially engage directly with clients to understand their technical requirements and present solutions, fostering business acumen.

📝 Enhancement Note: Iris Software's tagline "Build Your Future. Own Your Journey." strongly suggests a commitment to employee growth. The company's emphasis on a "launchpad for growth" and "personalized career development" indicates a structured approach to career progression, which is a significant advantage for ambitious engineers.

🌐 Work Environment

Office Type: The role is designated as "On-site," meaning the work will be performed from one of Iris Software's offices. This typically fosters a collaborative environment with direct access to colleagues and resources.

Office Location(s): The primary location mentioned is Noida, Uttar Pradesh, India. Iris Software also has offices in Gurugram and Pune, suggesting potential flexibility or internal mobility opportunities, though the specific posting is for Noida.

Workspace Context:

• The Noida office is likely a modern, well-equipped facility designed to support a large IT workforce.

• Expect a collaborative workspace that encourages team interaction, with access to necessary hardware, software, and high-speed internet.

• Opportunities for direct mentorship and knowledge sharing with senior colleagues and peers will be readily available in an on-site setting.

• The environment will likely be dynamic, with a focus on project delivery, client needs, and continuous technological advancement.

Work Schedule: Standard professional working hours (likely 40 hours/week) in the Indian Standard Time (IST) zone. While on-site, there might be some flexibility depending on team needs and project deadlines, but core hours will be expected for collaboration.

📝 Enhancement Note: The on-site nature of the role is a key differentiator. For candidates who thrive in a collaborative, in-person environment and value direct interaction with team members and managers, this setup is ideal. It also implies access to company-provided infrastructure and support.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: HR or recruiter screens applications for basic qualifications and cultural fit.

• Technical Assessment: Candidates will likely undergo one or more technical interviews assessing their proficiency in React, JavaScript, HTML/CSS, state management (Redux, TanStack Query), testing (Jest, RLT), and architectural design principles. This may include coding challenges or live coding sessions.

• System Design/Architecture Discussion: A session focusing on designing scalable enterprise applications, defining API contracts, and discussing performance optimization strategies.

• Behavioral Interview: Evaluation of leadership qualities, problem-solving skills, collaboration, mentoring abilities, and alignment with Iris Software's values.

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

Portfolio Review Tips:

• Curate Selectively: Choose 2-3 of your strongest, most relevant React projects that best showcase your skills in enterprise application development, performance optimization, and modern frontend practices.

• Focus on Impact: For each project, clearly articulate the business problem it solved, your specific contributions, the technical challenges you overcame, and the measurable outcomes (e.g., performance improvements, user adoption, efficiency gains).

• Highlight Architecture: Be prepared to walk through the architectural decisions made, including component structure, state management strategy (Redux, TanStack Query), API integrations, and testing approaches.

• Demonstrate Best Practices: Showcase your adherence to coding standards, security principles, and performance optimization techniques. Explain your approach to unit and integration testing.

• Showcase Mentorship: If applicable, have examples of how you've guided or mentored junior developers in past projects.

Challenge Preparation:

• Coding Challenges: Practice coding problems focused on JavaScript, React component design, state manipulation, and asynchronous operations. Be comfortable with algorithms and data structures relevant to frontend development.

• System Design: Prepare to discuss how you would design a scalable frontend architecture for a complex enterprise application, considering factors like performance, maintainability, security, and data handling.

• Problem-Solving Scenarios: Anticipate questions about troubleshooting production issues, identifying performance bottlenecks, and implementing effective solutions. Be ready to explain your root cause analysis process.

📝 Enhancement Note: The interview process is likely rigorous, given the senior level of the role and Iris Software's reputation. A strong portfolio that clearly demonstrates practical application of required skills and quantifiable results will be key. Candidates should be prepared for both technical depth and behavioral assessments.

🛠 Tools & Technology Stack

Primary Tools:

• Frontend Framework: React (core requirement)

• State Management: Redux, TanStack Query (React Query)

• UI Libraries: Potentially Material-UI, Ant Design, or custom component libraries.

• Version Control: Git (standard for all software development)

• Build Tools: Webpack, Vite (common for React projects)

Analytics & Reporting:

• Testing Frameworks: Jest, React Testing Library (RLT)

• Performance Monitoring: Tools like Lighthouse, Web Vitals, or integrated APM solutions.

• CI/CD Tools: Jenkins, GitLab CI, GitHub Actions (for pipeline automation).

CRM & Automation:

• While not directly specified for this role, understanding how frontend applications integrate with backend systems, APIs, and potentially enterprise platforms (like ERP or CRM systems for data display/interaction) is beneficial.

• API Interaction: RESTful APIs, GraphQL.

📝 Enhancement Note: The mandatory skills list is very specific about the technologies expected. Candidates must be proficient in React, Redux, TanStack Query, Jest, and React Testing Library. Familiarity with CI/CD and general API integration strategies is also crucial for an enterprise-level role.

👥 Team Culture & Values

Operations Values:

• Technical Ownership: Demonstrating strong ownership and accountability in delivering complex development activities with high-quality execution.

• Engineering Excellence: Driving high-quality frontend solutions through code reviews, automation, performance optimization, and defect prevention.

• Collaboration: Effectively working with cross-functional teams and business stakeholders for seamless delivery.

• Analytical Problem-Solving: Applying strong analytical skills to resolve complex technical and production challenges.

• Mentorship: Guiding and developing junior developers on coding standards, debugging, and best practices.

• Adaptability & Learning: Embracing evolving technologies and engineering practices with a commitment to continuous learning.

• Attention to Detail: Maintaining meticulous focus on architecture, code quality, security, and performance.

• Initiative: Proactively driving reusable frameworks, automation, and process improvements.

• Business Alignment: Balancing technical excellence with business priorities to deliver scalable and maintainable solutions.

Collaboration Style:

• Cross-functional Integration: Seamlessly integrating with backend teams, QA, DevOps, and business analysts to ensure holistic project success.

• Process Review & Feedback: Actively participating in code reviews and providing constructive feedback, as well as being receptive to feedback on one's own work.

• Knowledge Sharing: Willingness to share expertise through documentation, internal presentations, and mentorship sessions to elevate the team's overall skill level.

📝 Enhancement Note: Iris Software emphasizes a culture of ownership, excellence, and continuous growth, as highlighted by their "Employee Value Proposition." The company's recognition as a top workplace suggests a positive and collaborative environment where employees are valued and encouraged to develop their careers.

⚡ Challenges & Growth Opportunities

Challenges:

• Complex Enterprise Systems: Working with large-scale, intricate enterprise applications that require careful architectural design and performance optimization.

• Cross-functional Dependencies: Navigating dependencies and aligning technical requirements with diverse stakeholders across different departments and potentially different client organizations.

• Rapid Technological Evolution: Staying current with the fast-paced evolution of frontend technologies, frameworks, and best practices.

• Balancing Technical Debt: Managing and reducing technical debt in existing systems while delivering new features and enhancements.

• Mentoring and Leadership: Effectively guiding and developing junior engineers while maintaining personal technical contributions.

Learning & Development Opportunities:

• Advanced React Specialization: Opportunities to deepen expertise in performance optimization, accessibility, and advanced React patterns.

• Exposure to Modern Tech Stacks: Working with a variety of technologies within Iris's broader service offerings (Cloud, Data, DevOps, MLOps).

• Industry Conferences and Certifications: Potential support for attending relevant tech conferences and pursuing professional certifications.

• Mentorship Programs: Structured mentorship opportunities, both as a mentee and as a mentor, to foster leadership and technical growth.

• Internal Knowledge Sharing Sessions: Participation in workshops, tech talks, and brown bag sessions to share and acquire knowledge across the engineering teams.

📝 Enhancement Note: The challenges presented are typical for a senior role in a large IT services company. The opportunities for growth are framed around both deepening technical expertise and developing leadership capabilities, aligning with Iris's "Build Your Future. Own Your Journey." philosophy.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex React enterprise application you designed. What were the key architectural decisions, and how did you ensure scalability and performance?" (Focus on architecture, Redux/TanStack Query, performance optimization).

• "How do you approach troubleshooting production issues for a frontend application? Walk me through a challenging bug you resolved, including your root cause analysis process." (Focus on problem-solving, root cause analysis, sustainable fixes).

• "Imagine you need to onboard a new junior developer to your team. How would you guide them on our React codebase, coding standards, and best practices?" (Focus on mentorship, code reviews, engineering excellence). Company & Culture Questions:

• "Based on what you know about Iris Software and our focus on client success and employee growth, how do you see yourself contributing to our culture?" (Research Iris's values, employee proposition, and top workplace awards).

• "Describe a time you had to collaborate with stakeholders from different departments (e.g., business, QA, backend). How did you ensure alignment and successful delivery?" (Focus on collaboration, communication, cross-functional integration).

• "How do you stay updated with the latest trends and technologies in frontend development, particularly within the React ecosystem?" (Demonstrate continuous learning and adaptability). Portfolio Presentation Strategy:

• Structure for Impact: For each project in your portfolio, use a STAR method (Situation, Task, Action, Result) or a similar narrative structure. Clearly state the context, your role and responsibilities, the specific actions you took, and the tangible results achieved.

• Quantify Achievements: Wherever possible, use metrics to demonstrate the impact of your work. For example, "Reduced page load time by X%," "Increased user engagement by Y%," or "Automated Z process, saving X developer hours per week."

• Highlight Key Technologies: Explicitly mention your use of React, Redux, TanStack Query, Jest, RLT, and any other relevant tools and frameworks. Explain why you chose these technologies.

• Showcase Code Quality & Best Practices: Be prepared to discuss your approach to writing clean, maintainable, and testable code. Mention your experience with code reviews and how you ensure adherence to standards.

• Engage and Discuss: Treat the portfolio review as a collaborative discussion. Be ready to answer follow-up questions about your technical decisions, challenges, and potential alternative approaches.

📝 Enhancement Note: Interview preparation should focus on demonstrating not just technical proficiency but also leadership, problem-solving, and a proactive approach to engineering excellence and team development, aligning with Iris Software's stated values and the senior nature of the role.

📌 Application Steps

To apply for this Senior UI React Engineer position:

• Submit Your Application: Use the provided link to submit your resume and any supporting documents through the Iris Software careers portal.

• Tailor Your Resume: Ensure your resume clearly highlights your 7-8 years of experience, with a strong emphasis on React, Redux, TanStack Query, Jest, React Testing Library, and experience with enterprise-level applications. Use keywords from the job description naturally.

• Prepare Your Portfolio: Curate your strongest React projects, focusing on case studies that demonstrate your ability to design, develop, and optimize scalable enterprise applications. Be ready to discuss your architectural decisions, technical challenges, and quantifiable results.

• Practice Interview Responses: Prepare for technical questions covering React, JavaScript, state management, and testing. Also, practice behavioral questions focusing on ownership, collaboration, problem-solving, and mentorship.

• Research Iris Software: Understand the company's vision, values, culture, and recent achievements (e.g., "Top 25 Best Workplaces"). This will help you tailor your responses and demonstrate your alignment with their goals.

⚠️ 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.