Senior Developer
India
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Job Description
Senior Developer
Noida, Uttar Pradesh

Job Summary

We are looking for a Senior Software Engineer – Experimentation with 3–5 years of overall experience, including 1–2 years of relevant experience in experimentation, A/B testing, CRO, or optimization platforms.

The role focuses on developing, configuring, QA, launching, and monitoring experiments using Optimizely Web Experimentation and Full Stack. Strong hands-on experience with JavaScript, HTML, CSS, and jQuery is required, along with regular client interaction and strong web-development fundamentals.

Key Responsibilities

  • Develop and configure experiments using Optimizely Web Experimentation and Full Stack.
  • Build experiment variations using JavaScript, HTML, CSS, and jQuery.
  • Work with Visual Editor, Custom Code, Audiences/Targeting, Goals & Metrics, Feature Flags, SDKs, APIs, Event Tracking, Snippets, and Extensions.
  • Implement and validate experiment logic, targeting, tracking, and data-layer integrations.
  • Perform developer-level QA, including cross-browser/device testing, debugging, and validation before handing experiments to QA.
  • Monitor live experiments and troubleshoot JavaScript, CSS, tracking, or configuration issues.
  • Work directly with clients to understand requirements and provide technical input on experiment implementation and feasibility.
  • Support experiment design/hypothesis discussions when required.
  • Collaborate with QA, design, analytics, and other teams to successfully deliver experiments.

Required Skills

  • Optimizely Web Experimentation
  • Optimizely Full Stack / Feature Experimentation
  • JavaScript, HTML, CSS, jQuery
  • A/B testing and experimentation concepts
  • Audiences, targeting, personalization, metrics, and event tracking
  • Data-layer and analytics validation
  • Browser Developer Tools and web debugging
  • Strong communication and client-facing skills

Good to Have

Experience with Adobe Target, VWO, or similar experimentation platforms.

Exposure to Adobe Analytics, Google Analytics/GA4, Tealium, SQL, or other analytics/tag-management tools is an advantage.

Experience

  • 3–5 years of overall professional experience.
  • 1–2+ years of relevant experimentation/optimization experience preferred.
  • Hands-on Optimizely experience strongly preferred.
  • Strong problem-solving and communication skills.

No people-management or leadership experience required initially.

Key Responsibilities

We are looking for a Senior Software Engineer – Experimentation with 3–5 years of overall experience, including 1–2 years of relevant experience in experimentation, A/B testing, CRO, or optimization platforms.

The role focuses on developing, configuring, QA, launching, and monitoring experiments using Optimizely Web Experimentation and Full Stack. Strong hands-on experience with JavaScript, HTML, CSS, and jQuery is required, along with regular client interaction and strong web-development fundamentals.

Key Responsibilities

  • Develop and configure experiments using Optimizely Web Experimentation and Full Stack.
  • Build experiment variations using JavaScript, HTML, CSS, and jQuery.
  • Work with Visual Editor, Custom Code, Audiences/Targeting, Goals & Metrics, Feature Flags, SDKs, APIs, Event Tracking, Snippets, and Extensions.
  • Implement and validate experiment logic, targeting, tracking, and data-layer integrations.
  • Perform developer-level QA, including cross-browser/device testing, debugging, and validation before handing experiments to QA.
  • Monitor live experiments and troubleshoot JavaScript, CSS, tracking, or configuration issues.
  • Work directly with clients to understand requirements and provide technical input on experiment implementation and feasibility.
  • Support experiment design/hypothesis discussions when required.
  • Collaborate with QA, design, analytics, and other teams to successfully deliver experiments.

Required Skills

  • Optimizely Web Experimentation
  • Optimizely Full Stack / Feature Experimentation
  • JavaScript, HTML, CSS, jQuery
  • A/B testing and experimentation concepts
  • Audiences, targeting, personalization, metrics, and event tracking
  • Data-layer and analytics validation
  • Browser Developer Tools and web debugging
  • Strong communication and client-facing skills

Good to Have

Experience with Adobe Target, VWO, or similar experimentation platforms.

Exposure to Adobe Analytics, Google Analytics/GA4, Tealium, SQL, or other analytics/tag-management tools is an advantage.

Experience

  • 3–5 years of overall professional experience.
  • 1–2+ years of relevant experimentation/optimization experience preferred.
  • Hands-on Optimizely experience strongly preferred.
  • Strong problem-solving and communication skills.

No people-management or leadership experience required initially.

Skill Requirements

We are looking for a Senior Software Engineer – Experimentation with 3–5 years of overall experience, including 1–2 years of relevant experience in experimentation, A/B testing, CRO, or optimization platforms.

The role focuses on developing, configuring, QA, launching, and monitoring experiments using Optimizely Web Experimentation and Full Stack. Strong hands-on experience with JavaScript, HTML, CSS, and jQuery is required, along with regular client interaction and strong web-development fundamentals.

Key Responsibilities

  • Develop and configure experiments using Optimizely Web Experimentation and Full Stack.
  • Build experiment variations using JavaScript, HTML, CSS, and jQuery.
  • Work with Visual Editor, Custom Code, Audiences/Targeting, Goals & Metrics, Feature Flags, SDKs, APIs, Event Tracking, Snippets, and Extensions.
  • Implement and validate experiment logic, targeting, tracking, and data-layer integrations.
  • Perform developer-level QA, including cross-browser/device testing, debugging, and validation before handing experiments to QA.
  • Monitor live experiments and troubleshoot JavaScript, CSS, tracking, or configuration issues.
  • Work directly with clients to understand requirements and provide technical input on experiment implementation and feasibility.
  • Support experiment design/hypothesis discussions when required.
  • Collaborate with QA, design, analytics, and other teams to successfully deliver experiments.

Required Skills

  • Optimizely Web Experimentation
  • Optimizely Full Stack / Feature Experimentation
  • JavaScript, HTML, CSS, jQuery
  • A/B testing and experimentation concepts
  • Audiences, targeting, personalization, metrics, and event tracking
  • Data-layer and analytics validation
  • Browser Developer Tools and web debugging
  • Strong communication and client-facing skills

Good to Have

Experience with Adobe Target, VWO, or similar experimentation platforms.

Exposure to Adobe Analytics, Google Analytics/GA4, Tealium, SQL, or other analytics/tag-management tools is an advantage.

Experience

  • 3–5 years of overall professional experience.
  • 1–2+ years of relevant experimentation/optimization experience preferred.
  • Hands-on Optimizely experience strongly preferred.
  • Strong problem-solving and communication skills.

No people-management or leadership experience required initially.

Other Requirements

We are looking for a Senior Software Engineer – Experimentation with 3–5 years of overall experience, including 1–2 years of relevant experience in experimentation, A/B testing, CRO, or optimization platforms.

The role focuses on developing, configuring, QA, launching, and monitoring experiments using Optimizely Web Experimentation and Full Stack. Strong hands-on experience with JavaScript, HTML, CSS, and jQuery is required, along with regular client interaction and strong web-development fundamentals.

Key Responsibilities

  • Develop and configure experiments using Optimizely Web Experimentation and Full Stack.
  • Build experiment variations using JavaScript, HTML, CSS, and jQuery.
  • Work with Visual Editor, Custom Code, Audiences/Targeting, Goals & Metrics, Feature Flags, SDKs, APIs, Event Tracking, Snippets, and Extensions.
  • Implement and validate experiment logic, targeting, tracking, and data-layer integrations.
  • Perform developer-level QA, including cross-browser/device testing, debugging, and validation before handing experiments to QA.
  • Monitor live experiments and troubleshoot JavaScript, CSS, tracking, or configuration issues.
  • Work directly with clients to understand requirements and provide technical input on experiment implementation and feasibility.
  • Support experiment design/hypothesis discussions when required.
  • Collaborate with QA, design, analytics, and other teams to successfully deliver experiments.

Required Skills

  • Optimizely Web Experimentation
  • Optimizely Full Stack / Feature Experimentation
  • JavaScript, HTML, CSS, jQuery
  • A/B testing and experimentation concepts
  • Audiences, targeting, personalization, metrics, and event tracking
  • Data-layer and analytics validation
  • Browser Developer Tools and web debugging
  • Strong communication and client-facing skills

Good to Have

Experience with Adobe Target, VWO, or similar experimentation platforms.

Exposure to Adobe Analytics, Google Analytics/GA4, Tealium, SQL, or other analytics/tag-management tools is an advantage.

Experience

  • 3–5 years of overall professional experience.
  • 1–2+ years of relevant experimentation/optimization experience preferred.
  • Hands-on Optimizely experience strongly preferred.
  • Strong problem-solving and communication skills.

No people-management or leadership experience required initially.
Apply now
Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion.