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104 Nielsen Sports Jobs
Senior JavaScript Developer
Nielsen Sports
posted 3 weeks ago
Job Role Insights
Flexible timing
Key skills for the job
Job Description
We are looking for a highly skilled Senior JavaScript Developer to join our SDK team. This role is heavily focused on core JavaScript development, performance tuning, and debugging at scale. If you thrive on solving low-level technical problems and have deep understanding of JavaScript internals (beyond the UI), this opportunity is for you.
Key Responsibilities:
- Architect and build robust, reusable SDK components using modern JavaScript (ES6+).
- Optimize code for performance, memory usage, and reliability across platforms.
- Analyze , debug, and resolve complex issues across environments.
- Write clean, maintainable, and well-tested code with minimal UI footprint.
- Collaborate with product managers, QA, and backend teams to define and refine SDK features.
- Work closely with CI/CD and monitoring pipelines for shipping reliable SDKs.
- Evaluate and integrate with various streaming or analytics platforms (e.g., CTV, mobile apps, web environments).
- Contribute to core engineering practices, code reviews, and technical documentation.
Required Skills & Qualifications:
- 6+ years of hands-on experience in frontend development.
- Expert in vanilla JavaScript, including closures, prototypes, scopes, memory leaks, and async behavior.
- Strong debugging skills across browsers and devices, including source maps, breakpoints, performance profiles.
- Experience developing or maintaining JavaScript SDKs or libraries used by third parties.
- Deep understanding of browser internals, event loop, network stack, and performance bottlenecks.
- Familiar with build tools like Webpack, Rollup, Babel, and packaging standards (UMD, ESM, CJS).
- Experience with testing tools such as Jest, Mocha, Karma, or Playwright.
- Comfort with tools like Chrome DevTools, Lighthouse, and Webpack Bundle Analyzer
Nice-to-Have Skills:
- Familiarity with BrightScript, Roku, or CTV platforms.
- Prior experience building instrumentation or analytics libraries.
- Exposure to TypeScript, though deep JS knowledge is primary.
- Understanding of privacy, security, and consent in SDK integrations.
Employment Type: Full Time, Permanent
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Flexible timing
Monday to Friday
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Day Shift
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