Senior Frontend Engineer

About the job

This role focuses on building and releasing small, high-impact frontend features driven by Optimizing experiments, personalization, and feature flags, in close collaboration with Product, Marketing, and Analytics teams. Roles & Responsibilities • Partner closely with Business, Product, and Growth teams to translate hypotheses and requirements into quick, production-ready frontend releases • Build and iterate on small, targeted features using Optimizely experiments, feature flags, and personalization • Implement code-based Optimizely experiments within a modern frontend stack (React / Next.js) • Ensure experiments are clean, isolated, and reversible with minimal tech debt • Collaborate with Analytics to ensure accurate tracking, event instrumentation, and experiment measurement • Optimize for page performance, accessibility, and cross-browser compatibility • Support rapid testing cycles while maintaining high engineering standards • Debug, monitor, and quickly fix issues arising from experiments or releases What We’re Looking For • 6+ years of experience as a Frontend Engineer in production environments • Strong expertise in React and modern JavaScript (ES6+) • Hands-on experience with Next.js or similar SSR / SPA frameworks • Direct experience working with Optimizely (Web Experimentation, Feature Flags, or Personalization) • Solid understanding of A/B testing concepts, experiment isolation, and rollout strategies • Experience collaborating directly with non-technical business stakeholders • Proficiency with HTML5, CSS3, responsive design, and modern styling approaches (CSS-in-JS, styled-components, etc.) • Familiarity with Git-based workflows and CI/CD pipelines • Experience with analytics tools (Google Analytics, Segment, or similar) • Understanding of performance monitoring and RUM tools • Experience working in high-traffic, consumer-facing applications • Exposure to feature flagging strategies beyond experimentation Why Join People10? At People10, you will be immersed in an exceptional work environment surrounded by helpful colleagues and a workplace where feedback flows freely. If you’re looking to make an impact, People10 is the place for you. People10 is an equal opportunity employer. We welcome and encourage diversity in the workplace regardless of race, gender, religion, age, sexual orientation, gender identity, disability or veteran status. Our culture of open door policy, constant connection with leadership team, opportunities for skill development through diversified learning initiatives like code combat, meetups, knowledge booster sessions makes People10 an rewarding place to work. At People10, we don’t just build software, but we also build careers. You will be: • Be part of a growing, design-led digital transformation firm solving real tech problems. • Collaborate with smart, driven teammates across geographies. • Enjoy autonomy, creative freedom, and the opportunity to make a visible impact. • Learn, upskill, and lead — we believe in growing people alongside platforms.

Requirements

• React
• JavaScript
• Next.js
• Optimizely
• HTML5
• CSS3

Preferred Technologies

• React
• JavaScript
• Next.js
• Optimizely
• HTML5
• CSS3

About the company

People10 is a new-age 'Agile and Lean Product Engineering’ firm that empowers businesses to be fast-and-fail-proof through state-of-the-art IT solutions. We craft custom solutions in web, mobile, cloud and data analytics using rapid agile and lean engineering methods and productivity frameworks.