UI Engineer – Architect/Principal

📍 Job Overview

Job Title: UI Engineer – Architect/Principal Company: SymphonyAI Location: Bengaluru, Karnataka, India Job Type: Full-Time Category: Front-End Engineering / UI Architecture Date Posted: February 17, 2026 Experience Level: 8+ Years Remote Status: On-site

🚀 Role Summary

• Lead the design and delivery of high-quality, scalable web frontends using Angular and React.
• Drive UI architecture, define patterns, and establish standards for large-scale enterprise applications.
• Focus on improving Core Web Vitals, bundle size, rendering performance, accessibility, and overall reliability.
• Leverage modern AI-assisted engineering tools to accelerate coding, refactoring, and test generation.
• Provide technical leadership, mentorship, and guidance to engineering teams through code reviews and best practices.

📝 Enhancement Note: While the title is "UI Engineer," the responsibilities and experience requirements (8+ years, lead architecture, mentorship) strongly indicate a Principal or Lead Engineer level role focused on front-end architecture and technical leadership, distinct from a standard UI developer. The emphasis on AI-assisted engineering tools is a significant differentiator.

📈 Primary Responsibilities

• Define UI Architecture: Establish and maintain frontend architecture, design patterns, and coding standards for complex Angular and React applications.
• Hands-on Feature Development: Take ownership of building and shipping intricate features end-to-end, including UI implementation, state management, routing, API integration, and comprehensive testing.
• Component Systems & Design Systems: Develop, maintain, and evolve reusable component libraries and design systems, potentially utilizing PrimeNG or custom solutions.
• Performance & Quality Optimization: Proactively identify and address performance bottlenecks to improve Core Web Vitals, reduce bundle sizes, enhance rendering speed, and ensure high accessibility and reliability standards.
• Technical Leadership & Mentorship: Guide and mentor fellow engineers through rigorous code reviews, pair programming sessions, knowledge sharing on best practices, and post-incident analysis for continuous learning.
• AI-Assisted Engineering Integration: Champion and implement AI tools (e.g., GitHub Copilot, Cursor) to enhance productivity in coding, refactoring, test generation, and debugging, while maintaining critical engineering judgment.
• Cross-Functional Collaboration: Effectively partner with Product Management, Design, Backend Engineering, and Quality Assurance teams to ensure cohesive and high-quality user experiences.
• Operational Excellence: Drive best practices in observability (logging, metrics), release hygiene, and safe rollout strategies to ensure robust and stable application deployments.

📝 Enhancement Note: The responsibilities clearly define a senior individual contributor role with significant architectural and leadership expectations, focusing on the strategic direction and technical execution of front-end development within a high-performance engineering team.

🎓 Skills & Qualifications

Education: [Specific degree requirements are not mentioned, but a Bachelor's or Master's degree in Computer Science, Engineering, or a related field is typically expected for this level.]

Experience:

• Minimum of 8 years of professional front-end engineering experience, with a strong track record of hands-on coding in production systems.
• Proven experience in leading technical decisions and influencing peers and stakeholders without direct authority.
• Ability to accurately estimate feature delivery timelines and meet project deadlines.

Required Skills:

• Deep Expertise in Angular (v14+): Extensive experience in building and architecting large-scale applications using Angular.
• Proficiency in React: Demonstrated experience with React, or the ability to quickly ramp up if Angular is the primary expertise.
• Enterprise UI Frameworks: Solid experience with PrimeNG or similar enterprise-grade UI component libraries.
• Modern Web Technologies: Strong command of TypeScript, modern JavaScript, HTML5, CSS/SCSS, and responsive design principles.
• SPA Architecture: In-depth understanding of Single Page Application architecture, including routing, state management, API patterns, caching strategies, and error handling.
• State Management: Experience with state management libraries such as NGXS, NGRX, Redux, or Zustand, and a strong grasp of reactive programming patterns using RxJS.
• Core Engineering Fundamentals: Excellent understanding of data structures, debugging techniques, code review best practices, and writing maintainable, scalable code.

Preferred Skills:

• Micro-frontends & Monorepos: Experience with micro-frontend architectures, Module Federation, or monorepo tools like Nx.
• Data Visualization: Familiarity with charting and data visualization libraries such as AMCharts, D3.js, or similar.
• Accessibility (WCAG): Strong knowledge and practical experience in implementing web accessibility standards (WCAG).
• Internationalization (i18n): Experience with designing and implementing multi-language support.
• Testing Frameworks: Proficiency in testing tools like Jest, Vitest, React Testing Library, Cypress, or Playwright.
• CI/CD Pipelines: Experience with setting up and managing CI/CD pipelines for front-end builds and deployments.

📝 Enhancement Note: The requirement for "at least 1 year of deep usage experience in generating ui of higher quality using tools such as cursor" and the general emphasis on AI tools suggest a strong preference for candidates who are early adopters and proficient in leveraging AI for software development, specifically in UI creation. This is a critical point for candidates to highlight.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Architectural Design Documents: Showcase examples of high-level front-end architecture diagrams and design specifications for complex applications.
• Component Library/Design System Contributions: Present examples of reusable UI components, design tokens, or contributions to a design system, demonstrating modularity and consistency.
• Performance Optimization Case Studies: Detail specific projects where you significantly improved Core Web Vitals, rendering performance, or bundle sizes, including metrics and methodologies.
• AI-Assisted Workflow Examples: If possible, include examples or descriptions of how AI tools were used to accelerate development, refactoring, or testing, demonstrating practical application and validation.

Process Documentation:

• Workflow Design & Optimization: Provide evidence of designing, documenting, and optimizing front-end development workflows, including testing strategies and deployment processes.
• Implementation & Automation: Demonstrate experience in implementing new processes, automating repetitive tasks, or introducing tools that enhance team efficiency.
• Measurement & Performance Analysis: Show examples of how you track and analyze front-end performance, code quality, and developer productivity metrics to drive continuous improvement.

📝 Enhancement Note: For a Principal Engineer role, the portfolio should not just showcase finished products but also the thought process, architectural decisions, and process improvements that led to those outcomes. Emphasis on quantifiable results and the strategic application of tools (including AI) is key.

💵 Compensation & Benefits

Salary Range: Given the Principal/Architect level, 8+ years of experience, and location in Bengaluru, India, a competitive salary range would typically be between ₹30,00,000 to ₹55,00,000 per annum (approximately $36,000 - $66,000 USD, depending on current exchange rates). This range can vary significantly based on the candidate's specific expertise, interview performance, and SymphonyAI's internal compensation bands.

Benefits:

• Competitive Compensation: Including base salary, potential bonuses, and stock options (if applicable).
• Comprehensive Health Insurance: Medical, dental, and vision coverage for employees and dependents.
• Retirement Savings Plan: Contributions to provident funds or similar retirement schemes.
• Paid Time Off: Generous vacation days, sick leave, and public holidays.
• Professional Development: Opportunities for training, certifications, conference attendance, and access to learning platforms.
• AI Tooling Access: Provision of advanced AI-assisted engineering tools and necessary hardware.
• Flexible Work Environment: Potential for hybrid work arrangements or flexible hours to support work-life balance.
• Global Collaboration: Opportunity to work with international teams and exposure to diverse projects.

Working Hours: The standard working hours are typically 40 hours per week. However, given the senior nature of the role and the fast-paced environment, flexibility may be required to meet project deadlines and collaboration needs with global teams.

📝 Enhancement Note: Salary figures for India are estimates based on market research for Principal UI Engineers in major tech hubs like Bengaluru with 8+ years of experience. Benefits are standard for a company of SymphonyAI's profile but should be confirmed. The mention of "flexible work environment" from the "About Us" section suggests potential for hybrid arrangements, though the "remote_derived" field indicates on-site. This discrepancy should be clarified by the candidate.

🎯 Team & Company Context

🏢 Company Culture

Industry: Artificial Intelligence (AI), Machine Learning (ML), Enterprise Software Solutions. SymphonyAI operates across diverse sectors including retail, CPG, financial services, manufacturing, media, and Enterprise IT. Company Size: SymphonyAI is a large and rapidly growing enterprise, indicated by its "large" company size and significant employee count. This implies established processes but also opportunities for impact within a growing organization. Founded: SymphonyAI was founded with a mission to combine AI technology with vertical expertise to deliver high-value applications. Being a significant player in the AI space suggests a culture of innovation, data-driven decision-making, and a focus on cutting-edge technology.

Team Structure:

• High-Performance Engineering Culture: The company explicitly aims to build a "World Class Engineering Team" with a "high-performance culture."
• Technical Leadership Focus: The Principal UI Engineer role is a senior individual contributor role with strong technical leadership expectations, suggesting a culture that values deep technical expertise and guidance.
• Cross-Functional Collaboration: The role requires close partnership with Product, Design, Backend, and QA teams, indicating a collaborative environment where different functions work cohesively.
• AI Integration: A key aspect of the team's methodology is the integration of AI-assisted engineering tools, suggesting a forward-thinking approach to development efficiency.

Methodology:

• AI-Driven Solutions: The company's core business revolves around AI and ML, influencing its approach to product development and internal processes.
• Data-Centric: Leveraging data for insights and decision-making is fundamental to SymphonyAI's offerings and likely its internal operations.
• Process Optimization: The emphasis on engineers improving Core Web Vitals, bundle sizes, and using AI tools highlights a dedication to efficient and optimized development processes.
• Agile/Iterative Development: Common in software companies, likely supported by cross-functional collaboration and a focus on delivering features iteratively.

Company Website: https://jobs.symphonyai.com/

📝 Enhancement Note: SymphonyAI's focus on AI and its ambition to build a "World Class Engineering Team" suggest a dynamic, technically challenging, and results-oriented environment. Candidates should be prepared to discuss their experience with AI tools and their impact on development efficiency.

📈 Career & Growth Analysis

Operations Career Level: This is a Principal-level UI Engineer role, positioning it at the senior individual contributor (IC) track. It signifies a high degree of technical expertise, architectural influence, and leadership capability, often one step below a formal management track or distinguished engineer. The role is expected to set technical direction and standards for front-end development.

Reporting Structure: The Principal UI Engineer will likely report to a Front-End Engineering Manager, Director of Engineering, or Head of Engineering. They will work closely with product managers, designers, and other engineering leads.

Operations Impact: While this is a UI Engineer role, the "Operations" in the context of this JD refers to the operational excellence of the engineering function itself. The impact of this role is measured by:

• Scalability and Performance: Ensuring the front-end applications can handle growth and deliver a seamless user experience.
• Developer Productivity: Improving development workflows, code quality, and leveraging AI to increase output.
• Reliability and Stability: Reducing bugs, improving uptime, and ensuring robust application performance.
• Technical Vision: Guiding the architectural direction of front-end development for current and future products.

Growth Opportunities:

• Technical Specialization: Deepen expertise in specific areas like AI-driven UI development, advanced front-end architectures (e.g., micro-frontends), or performance engineering.
• Architectural Leadership: Transition into more formal architecture roles or lead larger architectural initiatives across multiple teams.
• Mentorship & Team Building: Develop leadership skills by mentoring junior engineers, leading technical guilds, or potentially moving into a management track if desired.
• Cross-Domain Exposure: Gain exposure to different industry verticals SymphonyAI serves, understanding unique customer needs and challenges.
• Emerging Technologies: Stay at the forefront of AI and web technologies, contributing to SymphonyAI's innovative product roadmap.

📝 Enhancement Note: The "Principal" title implies a significant level of autonomy and influence, with growth opportunities primarily focused on deepening technical mastery and architectural impact rather than immediate people management.

🌐 Work Environment

Office Type: The job is listed as "On-site" with a specific address in Bengaluru, India. This suggests a traditional office-based work environment, designed to foster collaboration and team synergy.

Office Location(s): 1SJR I Park, Tower 3 Road Number 9, EPIP Zone, Bengaluru, Karnataka, India. This location is in a recognized IT and business park, likely offering good infrastructure and accessibility.

Workspace Context:

• Collaborative Spaces: The on-site nature suggests access to meeting rooms, common areas, and team spaces conducive to brainstorming and collaborative problem-solving.
• Technology & Tools: Employees will have access to the necessary hardware and software, including specialized AI engineering tools that SymphonyAI champions.
• Team Interaction: Daily in-person interaction with fellow engineers, designers, product managers, and other stakeholders to facilitate communication and build team cohesion.
• High-Performance Culture: The environment is likely fast-paced and focused on achieving ambitious goals, supported by a team that values innovation and efficiency.

Work Schedule: The primary work schedule will be aligned with standard business hours in India (Asia/Kolkata timezone). However, given the global nature of SymphonyAI and the need to collaborate with teams in different time zones, some flexibility may be required. The emphasis on "Operational Excellence" and "safe rollout strategies" suggests a structured approach to releases, but the "hands-on delivery" and "AI-assisted engineering" components imply a dynamic workflow.

📝 Enhancement Note: The "On-site" designation is key. Candidates should be prepared for a commute and in-office collaboration, which is a significant factor for those who have become accustomed to remote work.

📄 Application & Portfolio Review Process

Interview Process:

1. Initial Screening: A recruiter or hiring manager will review your application and conduct a brief call to assess overall fit, experience, and interest.
2. Technical Screening (Phone/Video): A senior engineer or architect will conduct a technical interview, likely focusing on core front-end concepts, JavaScript/TypeScript, Angular/React, state management, and architectural patterns. This may include live coding exercises or problem-solving scenarios.
3. Coding Challenge/Take-Home Assignment: You may be given a small project or coding challenge to complete within a set timeframe. This will likely assess your ability to build features, write clean code, and potentially integrate AI tools.
4. On-site/Virtual On-site Loop: This typically involves multiple interviews with different team members, including:
   • Architecture Deep Dive: Discussing your approach to UI architecture, system design, and handling scalability/performance challenges. This is where your portfolio will be heavily scrutinized.
   • Behavioral Interviews: Assessing your leadership, mentorship, collaboration, and problem-solving skills. Questions will align with SymphonyAI's high-performance culture and AI integration focus.
   • Pair Programming/Live Coding: More in-depth coding exercises, potentially focusing on specific problem domains or refactoring existing code.
   • Product/Design Collaboration Simulation: Discussing how you'd work with Product and Design to translate requirements into features.
5. Final Interview: Potentially with a senior leader or hiring manager to discuss overall fit and expectations.

Portfolio Review Tips:

• Showcase Architectural Thinking: Don't just show finished products; explain the "why" behind your architectural decisions, trade-offs considered, and the long-term vision.
• Quantify Your Impact: For performance improvements, use metrics (e.g., "Reduced load time by X%", "Improved Lighthouse score by Y points"). For AI usage, demonstrate how it led to tangible benefits like faster development cycles or reduced bugs.
• Highlight AI Tool Usage: Specifically mention and demonstrate how you've used tools like Cursor, GitHub Copilot, or ChatGPT in your projects. Be prepared to discuss prompt engineering, validation of AI output, and establishing team guidelines.
• Structure for Clarity: Organize your portfolio logically. Use case studies for significant projects, detailing the problem, your solution, the technologies used, your role, and the outcomes.
• Focus on Reusability & Scalability: Emphasize contributions to component libraries, design systems, and scalable architecture patterns.

Challenge Preparation:

• Practice Core Concepts: Brush up on JavaScript, TypeScript, data structures, algorithms, Angular/React internals, state management patterns, and common SPA challenges.
• Simulate AI-Assisted Coding: Practice writing code with AI assistants, focusing on effective prompting, reviewing AI-generated code for correctness, security, and maintainability, and integrating it into your workflow.
• Architectural Scenarios: Prepare to discuss how you'd design a complex front-end system, handle performance issues, integrate with backend APIs, and manage technical debt.
• Behavioral Responses: Use the STAR method (Situation, Task, Action, Result) to prepare stories that highlight leadership, problem-solving, collaboration, and mentorship.

📝 Enhancement Note: The explicit mention of AI tools like Cursor and GitHub Copilot means candidates must be ready to demonstrate practical, hands-on experience with these technologies and discuss their strategic application in a team setting.

🛠 Tools & Technology Stack

Primary Tools:

• Angular (v14+): The core framework for large-scale application development. Expect deep dives into its architecture, modules, components, services, and state management integration.
• React: Experience or familiarity required, indicating potential for multi-framework environments or future migration paths.
• TypeScript: Essential for modern, scalable JavaScript development.
• PrimeNG: A key component library for enterprise-level UI development, implying a need for a robust and consistent UI.
• HTML5, CSS/SCSS: Fundamental for web development, including responsive design and modern styling techniques.

Analytics & Reporting:

• Core Web Vitals: Direct focus on optimizing these performance metrics.
• Observability Tools: Likely involves logging and metrics frameworks for monitoring application health and performance in production.
• Performance Monitoring Tools: Tools used for profiling, debugging, and analyzing front-end performance (e.g., browser developer tools, Lighthouse, specialized APM tools).

CRM & Automation:

• State Management Libraries: NGXS, NGRX, Redux, Zustand – for managing complex application state.
• Reactive Programming: RxJS for handling asynchronous operations and data streams.
• AI-Assisted Engineering Tools:
  • GitHub Copilot: For code completion and generation.
  • Cursor: Specifically mentioned for generating higher quality UI, suggesting deep integration into the IDE workflow.
  • ChatGPT: For broader AI assistance in coding, debugging, and documentation.
• Testing Frameworks: Jest, Vitest, React Testing Library, Cypress, Playwright for unit, integration, and end-to-end testing.
• Build Tools & Module Systems: Experience with module federation, monorepos (Nx) is preferred, indicating a modern build and deployment infrastructure.
• CI/CD: Experience with continuous integration and continuous deployment pipelines for front-end applications.

📝 Enhancement Note: The emphasis on AI tools like Cursor and GitHub Copilot is a critical technical requirement. Candidates should be prepared to discuss their proficiency and strategic use of these tools as part of their core skill set.

👥 Team Culture & Values

Operations Values:

• Innovation & AI-Driven: A core value is leveraging cutting-edge AI and ML technologies to drive business transformation and development efficiency.
• High-Performance & Excellence: Commitment to building a "World Class Engineering Team" with a focus on high-quality output, performance, and reliability.
• Collaboration: Strong emphasis on cross-functional teamwork, open communication, and shared ownership of deliverables.
• Continuous Improvement: Dedication to optimizing processes, code quality, developer experience, and application performance through data-driven insights and feedback.
• Technical Leadership: Valuing deep technical expertise, mentorship, and the ability to guide technical direction.

Collaboration Style:

• Cross-Functional Integration: Engineers are expected to work closely with Product, Design, and QA to ensure a cohesive product vision and execution.
• Shared Ownership & Accountability: A culture where teams collectively own the success of features and applications, from conception to deployment and maintenance.
• Knowledge Sharing: Encouraging mentorship, code reviews, and open discussions to disseminate best practices and foster collective learning.
• Data-Informed Decisions: Utilizing data and metrics to guide development priorities, validate solutions, and measure impact.

📝 Enhancement Note: The culture is likely to be demanding but rewarding, with a strong emphasis on technical excellence, innovation, and collaborative problem-solving, particularly around the integration of AI in the development lifecycle.

⚡ Challenges & Growth Opportunities

Challenges:

• Integrating AI Effectively: While AI tools promise efficiency, ensuring their correct, secure, and maintainable application requires significant engineering judgment and validation. Establishing team guidelines for AI usage will be a key challenge.
• Balancing Innovation with Stability: Delivering cutting-edge AI-driven features while maintaining high standards for performance, reliability, and accessibility in large-scale applications.
• Cross-Functional Alignment: Ensuring seamless collaboration and communication across Product, Design, Backend, and QA teams, especially in a fast-paced environment.
• Technical Debt Management: As applications scale and evolve, managing technical debt while pushing forward with new development and AI integration.
• Mentoring and Scaling Knowledge: Effectively mentoring a team and disseminating best practices, especially with the rapid evolution of front-end technologies and AI tools.

Learning & Development Opportunities:

• AI Engineering Mastery: Deepen expertise in leveraging AI for software development, including prompt engineering, advanced AI tool usage, and evaluating AI-generated code.
• Front-End Architecture: Expand knowledge in advanced architectural patterns like micro-frontends, module federation, and complex state management solutions.
• Performance Optimization: Become a subject matter expert in web performance, Core Web Vitals, and advanced optimization techniques.
• Leadership Skills: Develop stronger technical leadership, mentorship, and influence skills through active participation in team guidance and architectural decision-making.
• Industry Exposure: Gain insights into how AI is transforming various industries through SymphonyAI's diverse client base.

📝 Enhancement Note: The role presents a unique opportunity to be at the forefront of integrating AI into the software development process, offering significant learning potential in a rapidly evolving field.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex UI architecture you've designed. What were the key considerations, trade-offs, and outcomes?" (Focus on scalability, maintainability, and how you'd apply AI to such a system).
• "How do you ensure code quality and performance in a large-scale Angular/React application, especially when using AI-assisted tools?" (Highlight your validation process, testing strategies, and AI judgment).
• "Walk us through a time you led a technical initiative or mentored engineers. What was your approach, and what was the impact?" (Prepare examples demonstrating technical leadership and mentorship).
• "How would you approach improving the Core Web Vitals for a critical user flow in our application?" (Be ready to discuss specific metrics, tools, and strategies).

Company & Culture Questions:

• "What excites you about SymphonyAI's mission and its focus on AI?" (Research their specific products and industry impact).
• "How do you see AI-assisted engineering changing the future of front-end development?" (Align your answer with their emphasis on tools like Cursor and Copilot).
• "Describe a time you had to influence stakeholders or peers without formal authority." (Showcase your collaboration and communication skills).
• "How do you stay updated with the latest front-end technologies and AI advancements?" (Demonstrate a commitment to continuous learning).

Portfolio Presentation Strategy:

• Start with the "Why": For each project, clearly articulate the business problem or technical challenge it addressed.
• Highlight Your Role & Decisions: Emphasize your specific contributions, especially architectural choices and leadership actions.
• Showcase AI Integration: Dedicate a section or specific examples to how you utilized AI tools, detailing the prompts used, the output, and your validation process. Quantify any efficiency gains.
• Quantify Results: Use metrics for performance improvements, development speed, bug reduction, or any other measurable outcomes.
• Be Ready for Deep Dives: Anticipate questions about specific code snippets, architectural diagrams, or challenges encountered.

📝 Enhancement Note: Candidates should prepare concrete examples that demonstrate not only technical proficiency but also strategic thinking regarding AI integration, performance optimization, and technical leadership within an enterprise context.

📌 Application Steps

To apply for this Principal UI Engineer position:

• Submit your application through the SymphonyAI careers portal.
• Tailor Your Resume: Highlight your 8+ years of experience, deep expertise in Angular (v14+) and React, experience with PrimeNG, TypeScript, SPA architecture, and state management. Crucially, prominently feature your hands-on experience with AI-assisted engineering tools like Cursor and GitHub Copilot, detailing specific projects or use cases.
• Curate Your Portfolio: Prepare a portfolio that showcases your architectural thinking, component library contributions, performance optimization case studies, and especially your practical application of AI tools in UI development. Quantify your achievements wherever possible.
• Prepare for Technical Interviews: Brush up on core front-end concepts, JavaScript/TypeScript, Angular/React specifics, state management patterns, and architectural design principles. Practice discussing how you'd leverage AI tools for coding, refactoring, and testing.
• Research SymphonyAI: Understand their AI solutions, target industries, and their vision for a "World Class Engineering Team." Prepare to articulate why you are a strong cultural fit for their high-performance, innovation-driven environment.

⚠️ 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.

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