Build and customize frontend solutions using Vanilla JavaScript, jQuery, HTML, and CSS. Debug complex client-side issues, manipulate the DOM, handle events, analyze Fetch/XHR requests, use MutationObservers, and modify live websites safely. Ensure cross-browser compatibility, responsive behavior, performance, and resilience to dynamic updates while collaborating cross-functionally on client scenarios and experiments.
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. 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.
Key Responsibilities:
Examples of Tasks You Will Perform- Rearranging elements on a page dynamically.
- 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.
- 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.
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/
Similar Jobs
Security • Cybersecurity
Own global revenue recognition under ASC 606 and accounting processes including commissions, COGS, and leases. Review tax provisions, returns, transfer pricing, and subsidiary filings; support external audits and cross-functional reporting. Lead accounting projects, process improvements, and AI-driven workflow automation. Requires a CA, Big 4 high-tech experience, strong US GAAP and revenue recognition knowledge, ERP experience, advanced Excel skills, and excellent communication.
Top Skills:
Ai Automation ToolsAsc 340-40Asc 606ExcelMS OfficeNetSuiteUs Gaap
Artificial Intelligence • Big Data • Cloud • Information Technology • Software • Big Data Analytics • Automation
Designs and deploys production AI assistants, copilots, agents, RAG systems, and intelligent automations. Integrates LLMs with Snowflake, AWS, enterprise applications, and workflow platforms to automate business processes. Builds backend services and serverless workflows, implements observability and responsible AI controls, and scales validated prototypes into reliable production solutions. Partners with technical and business teams to improve decision-making, efficiency, quality, and cost performance.
Top Skills:
AirflowAmazon Api GatewayAmazon BedrockAmazon EventbridgeAmazon S3Amazon SagemakerAnthropicAws LambdaAws Step FunctionsAzure OpenaiDbtGeminiGoMcpMicrosoft Power AutomateMlflowN8NOauthOpenaiPythonRbacSalesforceServicenowSnowflakeSnowflake Cortex SearchSnowflake Ml RegistrySnowparkSsoTypescriptUipathWeights & BiasesWorkato
Aerospace • Artificial Intelligence • Cloud • Machine Learning • Software • Cybersecurity • Defense
Perform software verification and validation for embedded aerospace platform components. Develop test plans, conduct requirement- and scenario-based testing, execute change impact analyses, resolve technical issues, support audits, and collaborate with stakeholders. The role requires embedded C/C++ and RTOS expertise, emulator and debugger experience, testing tools, technical leadership, and stakeholder management.
Top Skills:
BitbucketC++DeosDoors NgEmbedded CIcdJIRALauterbachLdraLinuxRtosVectorcast/Cover
What you need to know about the Mumbai Tech Scene
From haggling for the best price at Chor Bazaar to the bustle of Crawford Market, the energy of Mumbai's traditional markets is a key part of the city's charm. And while these markets will always have their place, the city also boasts a thriving e-commerce scene, ranking among the largest in the region. Driven by online sales in everything from snacks to licensed sports merchandise to children's apparel, the local industry is worth billions, with companies actively recruiting to meet the demands of continued growth.
