Senior Optimizely Engineer - (NPW)

Company Overview

Milestone Technologies is a global IT managed services firm that partners with organizations to scale their technology, infrastructure and services to drive specific business outcomes such as digital transformation, innovation, and operational agility. Milestone is focused on building an employee-first, performance-based culture and for over 25 years, we have a demonstrated history of supporting category-defining enterprise clients that are growing ahead of the market. The company specializes in providing solutions across Application Services and Consulting, Digital Product Engineering, Digital Workplace Services, Private Cloud Services, AI/Automation, and ServiceNow. Milestone culture is built to provide a collaborative, inclusive environment that supports employees and empowers them to reach their full potential.

Our seasoned professionals deliver services based on Milestone's best practices and service delivery framework. By leveraging our vast knowledge base to execute initiatives, we deliver both short-term and long-term value to our clients and apply continuous service improvement to deliver transformational benefits to IT. With Intelligent Automation, Milestone helps businesses further accelerate their IT transformation. The result is a sharper focus on business objectives and a dramatic improvement in employee productivity. Through our key technology partnerships and our people-first approach, Milestone continues to deliver industry-leading innovation to our clients. With more than 3,000 employees serving over 200 companies worldwide, we are following our mission of revolutionizing the way IT is deployed.

Job Overview

Job Summary

We are seeking a Senior Optimizely Engineer to lead experimentation, personalization, and optimization initiatives across our digital platforms. This role is responsible for designing, developing, and scaling A/B tests and feature experiments using Optimizely, while closely partnering with product, UX, analytics, and engineering teams to drive data-backed decisions and measurable business outcomes.

Key Responsibilities

Experimentation & Optimization

• Design, build, and manage A/B, multivariate, and feature flag experiments using Optimizely (Web, Full Stack, Feature Experimentation).
• Partner with product and UX teams to translate hypotheses into well-structured experiments.
• Ensure experiments are statistically sound, scalable, and aligned with business goals.
• Analyze experiment results and clearly communicate insights to stakeholders.

Engineering & Architecture

• Implement Optimizely SDKs and APIs across web and server-side platforms.
• Ensure clean, modular, and performant experiment code.
• Integrate Optimizely with analytics tools (Google Analytics, Adobe, Segment, Amplitude, etc.).
• Manage feature flags and progressive rollout strategies safely in production.

Personalization

• Implement audience targeting, personalization rules, and recommendation strategies.
• Leverage customer data to drive contextual and behavioral experiences.

Governance & Best Practices

• Define experimentation best practices, standards, and documentation.
• Ensure compliance with performance, accessibility, security, and privacy standards.
• Mentor junior engineers and provide code reviews and technical guidance.

Collaboration & Leadership

• Act as the technical SME for Optimizely across the organization.
• Work cross-functionally with Product, Design, Marketing, Analytics, and Engineering.
• Influence roadmap decisions using experimentation insights.

Required Qualifications

• Strong experience with Optimizely (Web Experimentation, Full Stack, Feature Flags).
• Proficiency in JavaScript, TypeScript, and modern frontend frameworks (React, Angular, or Vue).
• Experience with backend languages (Node.js, Java, .NET, or similar).
• Solid understanding of A/B testing methodology, statistics, and experiment design.
• Experience integrating with analytics and data platforms.
• Strong knowledge of web performance, CI/CD pipelines, and version control (Git).
• Ability to explain technical concepts to non-technical stakeholders.

Preferred Qualifications

• Optimizely certification(s).
• Experience with personalization engines and CDPs.
• Exposure to experimentation at scale (high-traffic platforms).
• Experience with cloud platforms (Azure, AWS, or Google Cloud Platform).
• Familiarity with GDPR, consent management, and privacy-first experimentation.

Soft Skills

• Strong analytical and problem-solving skills.
• Excellent communication and stakeholder-management abilities.
• Ownership mindset with attention to detail.
• Ability to balance speed, quality, and experimentation rigor.

Compensation

Estimated Pay Range:

Exact compensation and offers of employment are dependent on circumstances of each case and will be determined based on job-related knowledge, skills, experience, licenses or certifications, and location.

Our Commitment to Diversity & Inclusion

At Milestone we strive to create a workplace that reflects the communities we serve and work with, where we all feel empowered to bring our full, authentic selves to work. We know creating a diverse and inclusive culture that champions equity and belonging is not only the right thing to do for our employees but is also critical to our continued success.

Milestone Technologies provides equal employment opportunity for all applicants and employees. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, gender, gender identity, marital status, age, disability, veteran status, sexual orientation, national origin, or any other category protected by applicable federal and state law, or local ordinance. Milestone also makes reasonable accommodations for disabled applicants and employees.

We welcome the unique background, culture, experiences, knowledge, innovation, self-expression and perspectives you can bring to our global community. Our recruitment team is looking forward to meeting you.