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

- Solid 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, FullStory, 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.

📌 Optimizely Developer (India)
🏢 EXL
📍 India