Frontend Developer - Angular 2+

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.

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation. 
 

Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

About the position

F5 is looking for a Software Engineer with expertise in designing Web UI automation solutions to test high-scale distributed systems. You will collaborate with architects and application development teams to vet and validate test automation for an edge computing platform that is used to deploy global, scalable and secure applications.

Responsibilities:

• Understand the product architecture and come up with a frontend testing strategy such that quality is driven into the heart of the development process

• Perform integration tests on web services & APIs using SauceLabs, Postman, Swagger and other testing tools

• Design test and automation infra to test functionality, scale, performance, and reliability to ensure predictable delivery of quality releases

• Design and implement different test strategies - black box, grey box, and white box - to ensure the product is finished, secure, and effective

• Research, recommend and implement tools as needed to ensure quality

• Build test frameworks working within CI/CD pipeline processes, and provide automation expertise to development teams

Minimum Qualifications:

• Experience in designing automation software from the ground up, choosing the right infrastructure components, evaluating both open source and closed source software

• Hands-on experience with JavaScript (TypeScript will be a plus)

• Strong working knowledge of test automation frameworks and tools: Selenium, WebDriver, SauceLabs, Protractor, Gitlab CI, Jenkins, Jasmine, Karma

• Practical experience with CI/ CD methodologies & tools

• Good understanding of Testing fundamentals, Bug life cycle, SDLC, STLC, Smoke testing, Sanity testing, Regression testing

• Prior working experience in Web-based projects with a strong understanding of UI, cross-browser compatibility, general web functions, and standards is a must.

• Good written and verbal communication skills and flexibility to work with teams in different time zones

• BS/MS degree in Computer Science or equivalent with 6-10 years of experience in software development and/or test automation

Desirable:

• Experience with load balancer products such as F5, Envoy, Nginx, HA proxy

• Experience with Kubernetes container technology, Terraform, AWS

• Good understanding of networking protocols, HTTP/HTTPS, Proxies TCP, UDP, IP, HTTP, SSL, DNS, FTP, origin pools, etc

About the company

F5 provides a distributed cloud platform to deploy, connect, secure and operate applications and data across multi-cloud and edge sites. Line-of-business leaders can drive business transformation and automation by distributing workloads closer to business activity. DevOps teams can manage fleets of applications and infrastructure with less complexity. Network teams can simplify application connectivity and security across clouds.

The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.

Equal Employment Opportunity

It is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination.  F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. 

Technical Solutions Specialist, App

• Understanding of products’ integration flows from a technical and sales perspective
• Work with the internal stakeholders in Criteo to understand client business objectives
• Providing feedback to our internal and/or client’s engineering team
• Be responsible and have ownership for the designed end to end solution’s projects
• Work in a fast-paced innovative environment and be cool under pressure
• Thrive when confronted with complex problems that require innovative solutions
• Act as a Subject matter expert on App related queries
• Leverages technical knowledge of products to meet customer needs
• Participate with the wider global team to improve and develop new tools and processes.
• Play a leading role in the testing and deployment phases of new products and customized solutions for our app business.
• Proactive development of tools and solutions that will have an impact on our campaign performance or set up to support the growth of our South APAC team
• Provide guidance to other team members on areas of expertise
• Identify bugs, report them, and work close to our internal teams for resolution

Who You Are

• Engineering background with a computer science-related degree
• Fluent in spoken & written English
• Experience with ad technology is a strong advantage, though not mandatory
• Experience in developing or reviewing/debugging code for mobile apps, ideally on both iOS and Android
• Experience with development and/or debugging MMP partner SDK's like AppsFlyer, Branch etc. will be a big plus
• Other web programming languages is a plus (JavaScript, HTML, …)
• Strong interpersonal and communication skills across all levels of interlocutors
• Ability to work on multiple projects at once, prioritize and execute a large number of tasks, and resolve issues quickly
• Proactivity associated with a “can do” way of working
• Problem-solving and a positive attitude in a fast-paced environment
• Autonomous personality and interested in taking initiatives and leading on projects
• Team spirit oriented, sharing best practices, and open to train other team members
• Attention to detail to act as a consultant and be reactive in front of any potential situations
• Passion for new media, internet trends, and continual learning

Job Details:-

Designation - Front-end Developer

Location:- Mumbai

Minimum Experience Required:- 2-4 Years.

Package Offered:- Rs.4,00,000/- to 7,00,000 pa.

Must have experience in React.js

We are looking for a qualified Front-end developer to join our IT team. You will be responsible for building the ‘client-side’ of our web applications. You should be able to translate our company and customer needs into functional and appealing interactive applications.

Front-end Developer Job Description:-

Responsibilities

• Use markup languages like HTML, React.js to create user-friendly web pages
• Maintain and improve web apps
• Optimize applications for maximum speed
• Collaborate with back-end developers and web designers to improve usability
• Get feedback from, and build solutions for, users and customers
• Write functional requirement documents and guides
• Help back-end developers with coding and troubleshooting
• Stay up-to-date on emerging technologies

Required Experience and Knowledge

• Proven work experience as a Front-end developer and hands-on experience with markup languages
• Experience with React.js (Saga), JavaScript, CSS (less) and Ant Design
• Familiarity with browser testing and debugging.
• In-depth understanding of the entire web development process (design, development and deployment)
• Understanding of layout aesthetics and knowledge of SEO principles
• An ability to perform well in a fast-paced environment
• Excellent analytical and multitasking skills

We are looking to hire an experienced Sr. Angular Developer to join our dynamic team. As a lead developer, you will be responsible for creating a top-level coding base using Angular best practices. To ensure success as an angular developer, you should have extensive knowledge of theoretical software engineering, be proficient in TypeScript, JavaScript, HTML, and CSS, and have excellent project management skills. Ultimately, a top-class Angular Developer can design and build a streamlined application to company specifications that perfectly meet the needs of the user.

Requirements:

1. Bachelor’s degree in computer science, computer engineering, or similar
2. Previous work Experience 2+ years as an Angular developer.
3. Proficient in CSS, HTML, and writing cross-browser compatible code
4. Experience using JavaScript & TypeScript building tools like Gulp or Grunt.
5. Knowledge of JavaScript MV-VM/MVC frameworks including Angluar.JS / React.
6. Excellent project management skills.

Responsibilities:

1. Designing and developing user interfaces using Angular best practices.
2. Adapting interface for modern internet applications using the latest front-end technologies.
3. Writing TypeScript, JavaScript, CSS, and HTML.
4. Developing product analysis tasks.
5. Making complex technical and design decisions for Angular.JS projects.
6. Developing application codes in Angular, Node.js, and Rest Web Services.
7. Conducting performance tests.
8. Consulting with the design team.
9. Ensuring high performance of applications and providing support.