Senior Software Engineer - JavaScript (Core)

Job Description:

As a Senior Software JavaScript Engineer, you will be required to work on various JavaScript libraries that are served on our customers’ websites thereby impacting millions of users. These libraries are the core of all the features of VWO.

We love vanilla JavaScript and work with cutting-edge technologies like TypeScript, Rollup.js, Cypress, and ESLint.

We are obsessed with Web Performance. See some of the improvements that we did https://engineering.wingify.com/posts/performance-improvements-in-vwo-smart-cod

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Job Responsibiliti

• es:Development of Core JavaScript librari
• es.Writing reusable code or modules that can be used across all the JavaScript librari
• es.Talking about your work - we love open source software, we heavily use them, and talking about how we use them is the least we can do to help the community. See our engineering blog https://engineering.wingify.com/ and our GitHub p

age
Skills & Experie

• nce:4-7 Years of Experience in Software Develop
• mentPassion for writing Vanilla JavaSc
• riptStrong knowledge and experience in JavaScript, HTML,
• CSS.Work Experience with TypeSc
• riptDeep understanding of the DOM, Browser Events, JavaScript APIs, Canvas rende
• ringDeep understanding of how the browsers work (HTTP, Cookies, Prefetching, Preloading, Caching, Synchronous / Asynchronous Reques
• ts).Regard for optimizations that focus to deliver content to the user as quickly as possi
• ble.Awesome Debugging Ski
• lls.Passion to write automated tests to verify the working of libraries (You can’t possibly verify things on all devices and on all browsers manually). We use Cypress for t
• his.Understanding the similarities and differences across browsers (young and o
• ld).Experience in writing modular JavaScript
• codeKnowledge of high-level programming concepts like promises, and data-bind
• ing.Passion to stay up to date with the constantly evolving world of front-end developm
• ent.Good experience with various build tools like yarn, npm, ro

llup
About the Company: At Wingify, we’re building SaaS (software as a service) products from India that are used by thousands of brands in more than 90 countries across the world. In our industry, we’re proudly outcompeting a number of international counterparts to clock more than USD 42mn in annual revenue without any external fun

ding.
VWO made history in 2010 by revolutionizing A/B testing with the launch of the world's first visual editor for webpage modifications, eliminating the need for coding. This innovation catapulted VWO's parent company, Wingify, to become one of India's most successful SaaS companies. Today, VWO is the global pioneer in conversion optimization, empowering marketers to boost conversion rates and drive sales on their websites. With a client base exceeding 2500, VWO promotes a data-driven approach that fosters experimentation and growth. VWO's latest version bundles a myriad of features into a single package, including A/B testing, Heatmaps, Session Recordings, Funnels, Form Analytics, Personalization, Server-Side Testing, and Program manag

ement.This has been made possible by our relentless focus on delivering value to our customers by creating tools that are simple to use, yet pack a punch when it comes to delivering value for their g

rowth.Our focus on our products is reflected in what our customers have to say about us. Last year, G2Crowd recognized VWO by Wingify among the 25 best software SaaS companies in India, and in 2017, ET gave us the title of Startup of the Year in the bootstrapped champ cat