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Optimizely Developer and CRO

Job in 110006, Delhi, Delhi, India
Listing for: Confidential
Full Time position
Listed on 2026-02-03
Job specializations:
  • IT/Tech
    Data Analyst, Web Developer
Job Description & How to Apply Below
Key Responsibilities
Experiment Development & Execution
Develop, implement, and QA  A/B, multivariate, and personalization experiments  using  Optimizely Web/Feature Experimentation .
Translate experiment requirements, wireframes, and hypotheses into robust front-end experiences.
Build experiment variations using  JavaScript, HTML, CSS , and Optimizely APIs.
Maintain experiment quality through cross-browser testing, debugging, and performance optimization.
CRO & Analytics
Partner with CRO strategists to assess test feasibility and technical requirements.
Implement tracking, event triggers, and analytics integrations (Google Analytics, Adobe Analytics, Segment, etc.).
Monitor experiments for performance, data integrity, and UX impacts.
Assist with interpreting experiment results and provide technical insights.
Optimization Platform Engineering
Manage experimentation environments, audiences, feature flags, and configuration settings.
Ensure Optimizely snippets, SDKs, and integrations are optimized for performance and accuracy.
Support the rollout of  feature experimentation  for product teams (flags, rollouts, holdouts).
Collaboration & Documentation
Work closely with design, product, and analytics teams in Agile workflows.
Document experiment setups, code implementations, and platform configurations.
Advocate for best practices in CRO tooling, experimentation design, and front-end performance.

Required

Skills & Qualifications
Technical Skills
Strong proficiency in  JavaScript (ES6+), HTML5, and CSS3 .
Hands-on experience with  Optimizely Web Experimentation ,  Feature Experimentation , or similar platforms (VWO, Adobe Target, Google Optimize).
Experience building interactive UI variations using DOM manipulation, JS frameworks, and event handling.
Familiarity with  Optimizely APIs and asynchronous snippet execution models .
Solid understanding of  CRO experimentation principles , statistical significance, and test design.

Experience with analytics tools such as  GA4, Adobe Analytics, CJA, Mixpanel, Heap .
Familiarity with Git and Agile development workflow.
Soft Skills
Strong analytical mindset with a detail-oriented approach.
Effective communication skills to collaborate with technical and non-technical teams.
Ability to manage multiple experiments simultaneously.
Passion for experimentation, optimization, and user-centered thinking.

Preferred Qualifications

Experience with  feature flagging , progressive rollout, or server-side experimentation.
Familiarity with  React, Vue, or other front-end frameworks .
Experience using  Qualtrics, Full Story, Hotjar , or other UX insight tools.
Understanding of SEO, page performance, and rendering behaviour.

Experience with personalization and audience segmentation tools.

Education & Experience
Bachelor's degree in Computer Science, Engineering, Marketing Technology, or equivalent experience.
3 – 7 years of hands-on experimentation experience.
Prior experience in a CRO or digital experimentation-focused team is strongly preferred.

Why Join Us
Work at the intersection of  data, design, and engineering  to shape user experiences.
High-impact, measurable work that drives business growth.
Collaborative and experimentation-first culture.
Competitive compensation, benefits, and growth opportunities.
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