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We at opexAI strive to make business strategies and provide effective solutions to your complex business problems using AI, machine learning and cognitive computing approaches. With a 40+ years experience in analytics and a workforce of highly skilled and certified consultants, we provide a realistic approach to help you chart an optimal path to success.
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Dear Candidate,
Greetings of the day!!!
Techmango Technology Services is a full-scale software development services company founded in 2014 with a strong focus on emerging technologies. It holds a primary objective of delivering strategic solutions towards the goal of its business partners in terms of technology.
We are a full-scale leading Software and Mobile App Development Company. Techmango is driven by the mantra “Clients Vision is our Mission”.
We have a tendency to stick on to the current statement. To be the technologically advanced & most loved organization providing prime quality and cost-efficient services with a long-term client relationship strategy. We are operational in the USA - Chicago, Atlanta, Dubai - UAE, in India - Bangalore, Chennai, Madurai, Trichy.
Find below the JD for the opening of Senior React Engineer - TechMango
Role: Senior React Engineer
Exp: 8+Yrs
Job Location: Chennai and Work From Office
Technologies : React.js, Redux,JavaScript, TypeScript.,React with hooks, HTML5, CSS, Node and Git.
Job Description
- Serving as a core member of an agile team that drives user story analysis and elaboration, designs and develops responsive web applications using TypeScript with strong emphasis on React
- Building reusable cross platform components and front-end libraries for future use
- Performing hands-on software development, typically spending 80% of time actually writing code and unit tests, doing proof of concepts, conducting code reviews, and testing in ongoing sprints
- Performing ongoing refactoring of code, utilizing visualization and other techniques to fast track concepts, and delivering continuous improvement
- Developing deep understanding of integrations with other systems and platforms within the supported domains
- Good attitude, willingness to learn and collaborate
- Bring a culture of innovation, ideas, and continuous improvement
- Challenging status quo, demonstrate risk taking, and implement creative ideas
- Manage your own time, and work well both independently and as part of a team.
- Work closely with product managers, back- end and other front-end engineers to implement versatile solutions to tricky web development problems
- Finalizing HTML prototypes into Web Applications by integrating with back-end services and functionality
- Embrace emerging standards while promoting best practices and consistent framework usage.
- Translating designs and wireframes into high quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
Qualifications
- BS or MS degree in computer science, computer engineering, or other technical discipline or equivalent 3-4 years of work experience.
- 7+ years of experience working in JavaScript and able to demonstrate strong JavaScript knowledge.
- 2+ years of experience working in TypeScript.
- 5+ years of hands-on experience working in React with recent experience (functional components, hooks, state management, etc.).
- 5+ years experience writing adaptive and responsive UI applications.
- 5+ years of experience writing unit tests for React components and hooks / Test Driven Development (TDD).
- Good communication skills - able to write clear documentation and ability to explain technical concepts to designers, product managers and business partners in ways that are meaningful to them.
- Able to demonstrate strong web fundamentals & knowledge of DOM.
- Strong Knowledge of HTML5, CSS, React, Redux, Node and Git.
- Experience with Server-Side Rendering in React.
- Experience with version control (Git).
- Experience in low-level React application design.
- Strong understanding of the entire Software Development Life Cycle (SDLC).
- Solid understanding of JSON Schemas and RESTful APIs.
- Experience with continuous integration and continuous delivery environment.
- Experience in a11y and i18N.
- 3+ years of experience with Node JS or Backend services is a plus.
- Experience with Test Driven Development (TDD) / Behavior Driven Development (BDD) practices, automation testing including frameworks such as Selenium, WebDriverIO, Cucumber,JUnit, Mockito are a plus.
- 5+ yrs working in an Agile development environment is a plus.
- Knowledge of Angular is a plus.



Must-haves:
1. You need to be excited about the problem that we are trying to solve
2. 2+ years of experience building applications in React Native
3. Build pixel-perfect, buttery smooth UIs across both mobile platforms.
4. Strong JS fundamentals
5. Experience with iOS or Native Android development experience
6. Ability to give clarity and communicate well with the team, including
Product, Backend and Dev-Ops (if and when needed)
7. Ability to use profiling tools well, getting to root causes of bugs fast
8. Ability to pick and work on adjacent technologies if and when
required (Eg: If the best performance monitoring solution needs a
basic firebase setup, that should not be a blocker for you to go ahead
and do so)
9. Maintain code and write unit tests to ensure the product is of the
highest quality.
10. Reach out to the open-source community to encourage and help
implement mission-critical software fixes—React Native moves fast.
11. You need to be comfortable working in a remote environment (Good
internet connection and availability on phone is required)
12. Keen to learn!
Good to have:
1. Experience with React.js
2. Experience in Test Driven Development
3. Ability to tell Product what creates better User Experience, ability to
tell backend what API responses will help the user get a faster load
time
4. Inquisitiveness to understand the system as a whole, and not only be
stuck to your domain of expertise (Eg: Asking questions like why
does this particular response take so much time as compared to
others, and brainstorming with the backend engineer on how to
improve on it

We're seeking a skilled Front-end Lead Engineer to lead an ongoing production-ready enterprise project and contribute to code while leading the frontend team. If you're adept at creating user-friendly products and eager to work with cutting-edge tech in a growing company, we want to hear from you. We value an entrepreneurial mindset and passion for technology in our team members.
Experience: 5+ Year
Working Time: 12.30 PM to 9.30 PM
- Collaborate closely with cross-functional teams, including design, engineering & QA, to deliver high-quality solutions.
- Participate in planning and decision-making processes related to technical architecture, design, and implementation.
- Lead and mentor the Front-end (FE) team, providing technical guidance, coaching, and support.
- Oversee the deployment of frontend applications, coordinating with teams as necessary.
- Drive agile development practices within the FE team, ensuring efficient project delivery.
Requirements
- Bachelor's degree in Computer Science or related field.
- Minimum of 3 years of experience in leading the front-end development team.
- Proven experience in frontend development, with expertise in ReactJS, NextJS, MaterialUI, and React Query.
- Proficient in TypeScript development, skilled in building type-safe applications and leveraging TypeScript configurations for enhanced development efficiency.
- Proven leadership skills, with the ability to lead and mentor a diverse team.
- Excellent communication and interpersonal skills, with the ability to collaborate with cross-functional teams.
Benefits
- Gain real-world experience in corporate functioning.
- Learn to collaborate with diverse teams and meet deadlines in a professional environment.
- Access various learning and development programs to explore your passion.
- Work in a fast-paced, rapidly expanding tech team undergoing a revamp, with exposure to advanced technology and tools relevant to your role
We are looking for a creative, skilled UI developer to design web apps with functionality and aesthetics in mind. The UI developer will work with back-end developers and front-end developers to ensure that the applications are optimized for several devices and presented attractively. To be successful as a UI developer you should have excellent knowledge of HTML, JavaScript, and CSS. In addition to this, you must work well in a team as there are several individuals involved in the development process.
UI Developer Responsibilities:
- Work with other developers to ensure that the web apps are functional and visually appealing.
- Liaise with the client to gauge their needs and expectations.
- Plan the layout of the applications.
- Ensure that the applications are optimized for various devices.
UI Developer Requirements:
- Proficiency in HTML, JavaScript, jQuery, and CSS.
- Knowledge of Adobe Illustrator.
- Good interpersonal skills.
- Understanding of key design principles.
- Good problem-solving skills.


Role Summary:
Front-end Developer who would contribute towards building a highly flexible and scalable front-end by bringing deep core technology expertise.
Job Description:
- Ensure proper offline access using service workers and PWA
- Develop components which are SEO friendly
- Have experience in server-side rendering
- Drive evolution of application performance
- Ensure project scalability by having good project architecture
Skill Requirements:
- Good experience in HTML5, CSS3, JS - React
- React native
- Angular - Redux exposure - Have handled service workers and PWA caching and updates - CSS pre-processors knowledge like sass - Knowledge of webpack, parcel, grunt etc.
-Knowledge of pre-processors like SASS/LESS, CSS-Modules.
- Architecting and automating the build process for production, using task runners or scripts (Gulp / Grunt)
-Have an eye for good UI/UX, Progressive Web Apps, Responsive Design
-Interested in writing code, actively experimenting along with learning new things.
Individual applying to the role should ideally have the following attributes
-Passionate about Frontend Development and continually follow the platform & innovations
-Strong and innovative approach to problem solving and finding solutions
-Interested in working on fast-paced
- Excellent communicator (written and verbal, formal and informal)
- Flexible and proactive/self-motivated working style with strong personal ownership of problem resolution
- Ability to multi-task under pressure and work independently with minimal supervision.
- Ability to prioritize when under pressure.

About us:
HappyFox is a software-as-a-service (SaaS) support platform. We offer an enterprise-grade help desk ticketing system and intuitively designed live chat software.
We serve over 12,000 companies in 70+ countries. HappyFox is used by companies that span across education, media, e-commerce, retail, information technology, manufacturing, non-profit, government and many other verticals that have an internal or external support function.
To know more, Visit! - https://www.happyfox.com/
We’re looking for an experienced Technical Lead – Frontend Engineer to join our growing engineering team to help build and maintain HappyFox’s product offerings.
What you can expect as a Technical Lead at HappyFox:
- You will consistently ship features and improvements and lead a team of engineers working on our product roadmap.
- You will oversee software architecture, Git workflows, and CI/CD processes and perform code reviews to ensure exceptional code quality.
- You will actively work towards identifying, minimizing, and managing technical debt in the codebase.
- You will improve the development experience and the quality of the codebase.
- You will define our internal standards for coding style, maintainability, and best practices for a large-scale web application.
- You will uphold the best practices and coding standards for the team through code review and technical feedback.
- You will take responsibility for key technical architecture and design decisions.
- You will take ownership of the stability and performance of the services that you work on.
- You will contribute to the strategic vision and long-term roadmap in your area of expertise.
You should apply if:
- You have 2+ years of experience in a technical lead role designing and building single-page web applications.
- You have 8+ years of relevant professional experience in building web applications with javascript frameworks like Ember.js or React.js.
- You have deep knowledge of HTML, CSS, and JavaScript
- You have experience building single-page apps and a good understanding of the best practices and coding patterns.
- You have a passion to dig into technically complex problems to troubleshoot and figure out a solution.
- You have a desire to continuously improve and ship the best quality product.
- You have a pragmatic approach to making sure technical decisions align with actual business needs.
- You have a good understanding of the trade-offs when building for product value, reliability, or performance.
- You have excellent communication skills with the ability to discuss and explain your point of view clearly and effectively.


Job Description:
- Possesses a high degree of technical competency to design and develop digital applications using cutting-edge tools and technologies
- Collaborative working with the client's technology and business staff day to day
- Proactive and willing to go above and beyond to satisfy the client and deliver on project goals
- Codes, tests, debugs, implements, and documents complex applications
- Prepares for, and actively facilitates hand-off at project completion to ensure a smooth transition to the larger organization
- Extensive experience in Angular (i.e., designs new templates, tests styles or sheets, fixes bugs; collaborates heavily with core team members (especially UX and Design))
- Integration knowledge and experience with exposed services (e.g. REST, SOAP, etc.)
- Familiar with common security and performance pattern (e.g.: OATH)
- Additional Requirements for Application Platform: Angular
- Level of expertise with Angular SSR applications
- Knowledge of Micro Frontends or Micro UI
- Interaction paradigm with UI elements
- Exposure to CSS and Javascript
Technical Skill Set:
- Programming Languages: Java, Objective-C, C++, JAVASCRIPT, NodeJS
- Web Technologies: Angular 9/10, ReactJS, ES6, NgRx, Redux, HTML5, CSS3, BOOTSTRAP, JQuery, PHP, AJAX, PolymerJS
- Web Services: REST, SOAP
- Web Service Protocols: HTTP, XML, WSDL, UDDI, SOA
- Databases: MySQL, Oracle, MongoDB
Qualifications:
- Solid knowledge of HTML5 and CSS3 web standards
- Solid knowledge of JavaScript as well as Browser APIs
- Angular 2+
- RxJS, Typescript, JQuery.
- Experience writing unit tests
- Webpack, Babel
- Familiar with SASS and Responsive Design
- Experience using any CSS naming convention
- Experience debugging using JavaScript-based tools like Chrome Developer Console
- Solid understanding of Git
- Good understanding of SEO principles
- You are self-organized and can work autonomously
- Strong analytical, problem-solving, written and verbal communication skills

- Build fluid, scalable, responsive, and consumer-centric web platforms that target users across a wide array of devices
- Collaborate closely with designers & backend developers and contribute to the full product development life-cycle from design and development to roll out
Take ownership of work and deliver quality results consistently - Own the delivery of multiple features in a fast-paced work environment
- Build optimized and modular components to provide performance-oriented solutions
- Work in a dynamic and collaborative culture ensuring good teamwork and communication with remote team members when needed
Qualifications
- 4+ Years of experience in frontend web development (1+ in ReactJS)
- Strong past experience of building, scaling and maintaining feature-rich customer-facing single-page applications
- Ability to translate designs into UI elements with accuracy and an eye for fluidity and responsiveness; strong grasp of any of CSS / sass / less
- Proven ability to implement key concepts of state management, security, and caching practices in enterprise-level web applications used at scale
- Proficient understanding of compatibility issues across different browsers and web and mobile devices and available ways to work around them
- Familiarity with the react ecosystem and popular libraries in that ecosystem
- Strong grasp over core web development concepts like HTML5, JavaScript, CSS3, general Web 2.0 techniques, and working without modern component libraries
- Experience with designing secure web applications with a strong understanding of common security vulnerabilities and best practices
- Understanding of data structures, algorithms and object-oriented programming
- Strong grasp over concepts of performance, optimization, lighthouse, etc
- Strong handle over Git, following best practices to facilitate collaboration
Skills that will give you an edge
- Hands-on experience with supporting payments and integrating payment gateways
- Experience with progressive web apps, service workers
- Strong grasp over frontend unit and end-to-end testing frameworks
our community of consumers and enthusiasts, and meets the functional needs of our customers and
partners.
• Rapidly building prototype web user interfaces.
• Driving improvements in usability and interactivity of Zeta's web properties.
• Implementation of a pixel-perfect UI/UX with a focus on driving customer engagement and creating
beautiful and unobtrusive user flows.
• Collaborate across engineering, marketing, product management, customer support and design groups


