Sr UI Developer/Architect - funded Startup+equity

Job Title : Lead Web App Developer – Frontend

Experience : 10+ Years

Location : Bengaluru

Work Mode : Hybrid (3 days in office)

Role Overview :

We are seeking a Lead Frontend Engineer to build and maintain responsive, cloud-based web applications. This role involves developing efficient user interfaces using React.js, collaborating closely with UX and backend teams, and ensuring high-quality code.

Key Responsibilities:

• Frontend Development: Create and maintain web applications using React.js, HTML, CSS, and JavaScript/TypeScript.
• Collaboration: Work with UX designers to deliver excellent user experiences and ensure seamless backend integration.
• Code Quality: Write clean, efficient, and maintainable code while staying updated with modern practices.
• Build & Deployment: Manage build pipelines with Jenkins, deploy to CDNs, and leverage GCP for scalable solutions.
• Technical Expertise: Implement JavaScript frameworks and libraries for web analytics and use Git for version control.

Requirements:

Technical Skills:

• Proficiency in React.js, HTML, CSS, JavaScript/TypeScript, and Node.js frameworks.
• Strong debugging and problem-solving skills.
• Exposure to RDBMS and SQL (preferred).

Soft Skills:

• Excellent communication and collaboration abilities.
• Leadership skills to guide and inspire a team of developers.
• Education: Bachelor's/Master’s in Computer Science or related fields.

Notice Period: 30 days preferred

Interview Process:

1. Technical Round: Online technical assessment (1 hour).
2. Face-to-Face Interview: In-person interview with the team at the Bengaluru office (3 hours).
3. Final Round: Online interview with the CEO (30 minutes).

Additional Information:

• Candidates from Bengaluru or willing to relocate are preferred.
• F2F interview attendance on a weekday is mandatory.

We are seeking a highly skilled React JS Developer with exceptional DOM manipulation expertise and real-time data handling experience to join our team. You'll be building and optimizing high-performance user interfaces for stock market trading applications where milliseconds matter and data flows continuously.

The ideal candidate thrives in fast-paced environments, understands the intricacies of browser performance, and has hands-on experience with WebSockets and real-time data streaming architectures.

Key Responsibilities

Core Development

• Advanced DOM Operations: Implement complex, performance-optimized DOM manipulations for real-time trading interfaces
• Real-time Data Management: Build robust WebSocket connections and handle high-frequency data streams with minimal latency
• Performance Engineering: Create lightning-fast, scalable front-end applications that process thousands of market updates per second
• Custom Component Architecture: Design and build reusable, high-performance React components optimized for trading workflows

Collaboration & Integration

• Work closely with traders, quants, and backend developers to translate complex trading requirements into intuitive interfaces
• Collaborate with UX/UI designers and product managers to create responsive, trader-focused experiences
• Integrate with real-time market data APIs and trading execution systems

Technical Excellence

• Implement sophisticated data visualizations and interactive charts using libraries like Chartjs, TradingView, or custom D3.js solutions
• Ensure cross-browser compatibility and responsiveness across multiple devices and screen sizes
• Debug and resolve complex performance issues, particularly in real-time data processing and rendering
• Maintain high-quality code through reviews, testing, and comprehensive documentation

Required Skills & Experience

React & JavaScript Mastery

• 5+ years of professional React.js development with deep understanding of React internals, hooks, and advanced patterns
• Expert-level JavaScript (ES6+) with strong proficiency in asynchronous programming, closures, and memory management
• Advanced HTML5 & CSS3 skills with focus on performance and cross-browser compatibility

Real-time & Performance Expertise

• Proven experience with WebSockets and real-time data streaming protocols
• Strong DOM manipulation skills - direct DOM access, virtual scrolling, efficient updates, and performance optimization
• RESTful API integration with experience in handling high-frequency data feeds
• Browser performance optimization - understanding of rendering pipeline, memory management, and profiling tools

Development Tools & Practices

• Proficiency with modern build tools: Webpack, Babel, Vite, or similar
• Experience with Git version control and collaborative development workflows
• Agile/Scrum development environment experience
• Understanding of testing frameworks (Jest, React Testing Library)

Financial Data Visualization

• Experience with financial charting libraries: Chartjs, TradingView, D3.js, or custom visualization solutions
• Understanding of market data structures, order books, and trading terminology
• Knowledge of data streaming optimization techniques for financial applications

Nice-to-Have Skills

Domain Expertise

• Prior experience in stock market, trading, or financial services - understanding of trading workflows, order management, risk systems
• Algorithmic trading knowledge or exposure to quantitative trading systems
• Financial market understanding - equities, derivatives, commodities

Technical Plus Points

• Backend development experience with GoLang, Python, or Node.js
• Database knowledge: SQL, NoSQL, time-series databases (InfluxDB, TimescaleDB)
• Cloud platform experience: AWS, Azure, GCP for deploying scalable applications
• Message queue systems: Redis, RabbitMQ, Kafka, NATS for real-time data processing
• Microservices architecture understanding and API design principles

Advanced Skills

• Service Worker implementation for offline-first applications
• Progressive Web App (PWA) development
• Mobile-first responsive design expertise

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent professional experience)
• 5+ years of professional React.js development with demonstrable experience in performance-critical applications
• Portfolio or examples of complex real-time applications you've built
• Financial services experience strongly preferred

Why You'll Love Working Here

We're a team that hustles—plain and simple. But we also believe life outside work matters. No cubicles, no suits—just great people doing great work in a space built for comfort and creativity.

What We Offer

💰 Competitive salary – Get paid what you're worth

🌴 Generous paid time off – Recharge and come back sharper

🌍 Work with the best – Collaborate with top-tier global talent

✈️ Adventure together – Annual offsites (mostly outside India) and regular team outings

🎯 Performance rewards – Multiple bonuses for those who go above and beyond

🏥 Health covered – Comprehensive insurance so you're always protected

⚡ Fun, not just work – On-site sports, games, and a lively workspace

🧠 Learn and lead – Regular knowledge-sharing sessions led by your peers

📚 Annual Education Stipend – Take any external course, bootcamp, or certification that makes you better at your craft

🏋️ Stay fit – Gym memberships with equal employer contribution to keep you at your best

🚚 Relocation support – Smooth move? We've got your back

🏆 Friendly competition – Work challenges and extracurricular contests to keep things exciting

We work hard, play hard, and grow together. Join us.

Role Overview

As a Senior Frontend Developer, you will be at the forefront of developing high-quality mobile applications using React Native. This role requires a comprehensive understanding of cross-platform development, UI/UX design principles, in-app purchases, and state management. You will work closely with our backend team, designers, and product managers to deliver seamless and responsive applications that meet global market standards.

Key Responsibilities

• Lead the development of mobile applications using React Native, ensuring cross-platform compatibility and responsiveness across devices.
• Collaborate with the design team to implement intuitive and user-friendly UI/UX designs.
• Integrate in-app purchases, Firebase services, dynamic links, and develop custom features to enhance user engagement.
• Manage application state effectively using state management libraries and best practices.
• Oversee the app deployment process, including release management, to the App Store and Google Play Store, ensuring compliance with their guidelines.
• Work with the team to identify and resolve performance issues and optimize application for speed and scalability.
• Work on animations and UX of applications for both IOS and Android.
• Stay updated with the latest trends and technologies in mobile development to continuously improve app functionality and user experience.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in frontend development, with significant experience in React Native and cross-platform mobile app development.
• Strong portfolio demonstrating expertise in UI/UX design and in-app purchases integration.
• Extensive experience with Firebase, including dynamic links and other backend services.
• Proven track record of managing app releases, including deployment to the App Store and Google Play Store.
• Excellent problem-solving skills, attention to detail, and the ability to work in a fast-paced, team-oriented environment.
• Strong communication skills, with proficiency in English.
• Attach the link of mobile application worked on till date

Why Join Us?

• Opportunity to lead a cutting-edge project impacting users globally.
• Work in an environment that fosters innovation, collaboration, and professional growth.
• Competitive compensation, comprehensive benefits.

Software Engineering

• 4+ years of experience in designing, developing, and maintaining React-based applications
• 4+ years of hands-on experience in developing medium to large-scale applications using Javascript frameworks
• Experience with projects that involve, improving the reliability and performance of your web-apps, by leveraging different observability tools like Lighthouse, Sentry, and Datadog.
• Good understanding of functional programming paradigms and UI architecture patterns
• A decent understanding of cloud infrastructure like AWS to orchestrate and manage our applications.
• Experience with testing frameworks like JEST, modern auth mechanisms, and server-side rendering through frameworks like NextJS
• Experience with backend technologies like JAVA, and Kotlin would be good to have.

Product Development

• Ability to scope, review and refine user stories for technical completeness and to resolve dependency risks.
• Well-versed in working in an agile environment and being involved in different stages of SDLC - Design, Development, Code Review, Testing, and Release Management
• Ability to work with different CI/CD frameworks, with hands-on experience with Git or any similar source code management tools
• Continuously refactor applications so that they are easy to maintain, easy to extend, and contribute to

Your Tech Stack

Web Application Frameworks: React, Ruby on Rails

Programming Languages: ReasonML/Rescript, Typescript, Javascript, Kotlin, HTML, CSS

Tools and Libraries: Webpack, Sentry, NextJS, NodeJS, Jest, Figma

Communication: HTTP, GraphQL, Amazon SQS, Amazon SNS

Observability: Google Analytics, Lighthouse, Sentry, Kibana, Datadog

What you will build with us?

The front-end platform at Porter is geared toward developing a variety of products for customers, partners, and our internal teams. You will be a part of Porter’s Web Engineering Platform team.

What will be your primary focus?

1. enabling our engineering teams to create highly reliable and scalable software systems, reduce client and server outages and increase system hygiene.
2. building the right set of tooling and flows for our web and mobile teams, for improving developer productivity. This will enable our application teams to churn out user features rapidly and will help them build the best-in-class product solutions for our business teams.
3. work on security initiatives, to protect information and information systems from unauthorized access, use, disclosure, disruption, modification, or destruction in order to provide confidentiality, integrity, and availability.

What will you closely influence?

1. Providing the right user experience to our customers, partners, and cc agents when they reach out to us
2. Building tools to help boost user growth on our platform including our driver onboarding, training and certification system, referral system, and lead management models. A step towards sustainable user growth and providing personalized experiences, on our platform
3. Unlocking new growth levels for Porter, in form of our new vibrant customer base through business initiatives like Packers and Movers, Part-Load, and help Porter on its journey to becoming a super Logistic App.
4. Enabling us to engage our partner ecosystem better with our fast-moving initiatives in the Insurance and Lending segments. Your work here will directly impact the livelihood of our partners
5. Solving problems related to optimal pricepoint for partners and customers, matchmaking with supply and demand, and building confidence around payment experience and location tracking.

DigiXHub is one of the Best Blockchain Application Development Company in Bangalore that provides solutions such as Blockchain Development(Public, private, Consortium Blockchain), Cryptocurrency Exchanges, ICO & ICO Marketing Services, Cryptocurrency Wallet Development, Smart contract Development etc.

Experience : 1 to 4 years

Location : Bangalore

Immediate joiner  
Job Description
We are looking for a great JavaScript\ developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
Responsibilities

• Developing new user-facing features using React.js

• Building reusable components and front-end libraries for future use

• Translating designs and wireframes into high quality code

• Optimizing components for maximum performance across a vast array of web-capable devices and browsers

Skills:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

• Thorough understanding of React.js and its core principles

• Experience with popular React.js workflows (such as Flux or Redux)

• Experience with data structure libraries (e.g., Immutable.js)

• Knowledge of isomorphic React is a plus

• Familiarity with RESTful APIs

• Knowledge of modern authorization mechanisms, such as JSON Web Token

• Familiarity with modern front-end build pipelines and tools

• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.

• Ability to understand business requirements and translate them into technical requirements

• A knack for benchmarking and optimization

• Familiarity with code versioning tools (such as Git, SVN, and Mercurial