Senior Software Engineer - Client Services

Role overview

Senior Software Engineer - Client Services at Wingify

Examples of Tasks You Will Perform Rearranging elements on a page dynamically.

We are looking for a Senior Software Engineer who is comfortable working with Vanilla JavaScript, HTML, and CSS to build and customize frontend solutions, debug complex client-side issues using browser developer tools, and handle DOM manipulation, event handling, and dynamic UI updates.

Responsibilities

• Creating new UI blocks using JavaScript, jQuery and CSS .
• Overriding existing styles safely.
• Preventing interference from existing scripts and styles.
• Ensuring compatibility across devices and screen sizes.
• Making changes that survive dynamic DOM updates.
• Tracking user interactions for experiments.
• Key Skills Required Strong understanding of Vanilla JavaScript, jQuery, HTML and CSS.
• Advanced DOM traversal and manipulation.
• Event handling and debugging in live environments.
• Using MutationObservers for dynamic content.
• Handling Single Page Applications (SPAs).
• Writing safe and conflict-free CSS.
• Understanding browser behaviour and edge cases.
• Performance-safe scripting on production websites.
• Important Mindset Difference This role is highly problem-solving oriented.
• There is no clean HTML, no reusable components, and often no documentation.
• You must analyse the DOM like a detective and figure out how to safely manipulate it in real-time.
• Who Will Enjoy This Role Developers who love JavaScript, jQuery and CSS deeply.
• Those who enjoy solving DOM challenges.
• People are comfortable working without access to source code.
• Developers who like debugging tricky real-world issues.
• We don’t build websites — we intelligently manipulate the DOM using Vanilla JavaScript, jQuery and CSS to run experiments on live websites.
• At Wingify, we are committed to building a diverse, equitable, and inclusive workplace.
• We believe that a variety of perspectives drives better ideas, stronger execution, and more meaningful impact.
• Read more about our policy here: https://wingify.com/careers/equal-opportunity-policy/

Employment details

• Location: India

Additional role details

• Should be confident analyzing APIs through Fetch/XHR requests, tracking DOM changes using MutationObserver and browser console techniques, and making real-time UI modifications using inspect element and custom scripts.
• The role also requires troubleshooting frontend issues across browsers and collaborating with cross-functional teams to solve real-world client scenarios while ensuring smooth and optimized user experiences.